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屏東縣2020環保戲劇7/3初賽 大明國小奪第一8/8進軍決賽@電傳媒

Posted On By 吳 富正

【電傳媒-記者吳富正、蔡佳芬/2020.07.03.屏東報導】

 屏東縣府環保局7/3於屏東演藝廳舉辦「109年環保戲劇競賽屏東初賽」,鼓勵參賽隊伍採用回收物或具重複利用性的材質製作道具,體現環保資收,循環經濟的理念。來自天南國小、建國國小、繁昌社區發展協會、內埔國中、隘寮社區發展協會、高泰國中、鶴聲國中、仁和關懷協進會、大同高中、大明國小等10組隊伍參賽;獲評第一名的隊伍為大明國小,將於8/8代表屏東縣參加全國賽。

 屏東縣府環保局顏幸苑局長表示,本次環保戲劇競賽為讓大眾關注環境議題並號召全民實踐環境行動,將「清淨空氣」、「循環經濟」、「改善水質」、「永續世代」、「友善環境」及「精進生活」等6 大施政主軸融入劇本創作及戲劇展演,激起民眾的環保意識,把對環境關懷的種子播種在每個人的心中,營造安居樂業與環境永續的幸福家園。所有參賽隊伍演出栩栩如生,充分演繹戲如人生,令人感同身受、渾然忘我,演出內容生動有趣。

屏東縣政府環保局https://www.ptepb.gov.tw/

吳 富正

13 thoughts on “屏東縣2020環保戲劇7/3初賽 大明國小奪第一8/8進軍決賽@電傳媒”

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  7. Not many domains have popularity as cloud computing has in recent times.
    So it’s no secret that cloud computing adoption is on Rice as you guys might have known Microsoft Azure is one
    of the best and leading cloud service providers and it certainly makes it to the list of
    top cloud computing skills. That one must have if you want to make a
    career in this domain then you have landed at right.
    Place hi, I welcome you all to this full course on Microsoft Azure, which not
    only talks about is your fundamentals, but will also take you deep at
    conceptual levels before we get into details. Let’s look at our
    agenda for today for better understanding and ease of learning entire course
    is divided into multiple modules. First module introduction to cloud is about
    what exactly cloud computing is different kind of deployment
    and service models in cloud computing second model is about as your fundamentals.
    Well in this module we will learn how to create a short Street our account
    and we’ll also discuss one of the code Computing service, which
    is Usher virtual machine next up in the third module will discuss as your storage services
    and database features in detail. Fourth module is about different
    network services offered by assured in here will discuss as your virtual Network
    and related Concepts like subnets security groups and many
    more in fifth module. We will learn how to secure your Access to
    your resources using identity and access Management Services like
    Azure active directory six module is all about is your develops in this module.
    We’ll learn how to simplify and accelerate entire divorce process using Azure develop services, like a sewer pipeline as your boards Etc in seventh
    module will talk about different services offered by Usher when you are dealing with current training Technologies, like machine learning a iot and Manny, Moe also will be
    comparing after sure with other leading service providers like AWS and gcp final module is mostly korea-related in this module.
    We’ll discuss most frequently Asked interview questions in Azure interviews will also discuss roles and responsibilities job Trends
    and skills that you should have to ease your interview.
    Thank you everyone while you are at it. Please do not forget to
    subscribe at Eureka YouTube channel and hit the Bell icon to stay updated with current trending Technologies.
    So let us move further and quickly take a look at today’s agenda first firstly, I would be discussing the basics of cloud as in why it
    is needed and what it is exactly. I would also discuss
    the different models that cloud has to offer to you like it’s service models and also
    its deployment models and also discuss the different Cloud providers that are there in the market and finally I would finish things off with the demo part.

    I hope this agenda is clear to all of you firstly let’s understand why Cloud to
    understand this So we need to understand the situation that existed
    before Cloud came into existence. So what happened back then and
    firstly in order to host a website, you have to buy a
    stack of servers and we all know that servers are very costly.
    So that meant we ended up paying a lot of money next was the issue of traffic.
    Now as we all know if you are hosting a website we
    are dealing with traffic that is not constant throughout the day and
    that meant more pain we would understand that as we move further and
    the other thing was monitoring and maintaining your servers.

    Yes, this is a very big problem now all these issues.
    They led to certain disadvantages. What are those as I mentioned servers are very
    costly. Yes. The setup was again costly and thus you ended up paying a lot of money and
    there were other factors contributing to this point.
    Let’s discuss those as well. One troubleshooting
    was a big issue since you’re dealing with a business.

    Your Prime Focus is on taking good decisions so that your business does well, but if you end up troubleshooting
    problems, Soare you focus more on infrastructure related issues.
    Then you cannot focus more on your business. And that was a problem.
    So either you had to do multitasking or you have to hire
    more people to focus on those issues thus again you ended up being more money as I’ve discussed
    the traffic on a website is never constant. And since it varies you are not certain about its patterns.
    Say, for example, I need to host a website and for that what I decided
    I am reserving to petabytes of total memory for my usage based.
    On the traffic but as the traffic, where is
    there would be times when the traffic is high and my whole to petabytes of data is consumed or space is consumed Roger.
    But what if the traffic is very low for certain hours of the day.

    I’m actually not utilizing these servers. So I
    end up paying more money for the servers than I should be.
    So yes upscaling was an issue. So all these things
    were an issue because we were paying more money.
    We do not have sufficient time to take our decisions properly.
    There was ambiguity. There was more trouble. All monitoring and
    maintaining all these resources and apart from that one important
    point which we need to consider is the amount of data that is
    being generated now and that was being generated then then it
    was okay, but nowadays if you take a look at it the amount of data
    that is generated is huge and this is another reason why Cloud became so important.

    Yeah, as of mentioned the data now, we all know that everything is
    going online these days and what that means is we shop online we buy food online.
    We do almost everything. What is required as
    an whatever information we need we get everything online your bookings and reservations.

    Everything can be taken care of that means we have a lot of
    data that is being generated these days and this is Digital Data back in those times.
    We were communicating through verbal discussions and all those things so through paperwork and that was
    a different data to maintain since everything is moving on cloud
    or moving online. The amount of data that we have is used
    these days and then when you have this huge amount of data
    Are you need a space where you can actually go
    ahead and maintain this data? So yes again, there was
    a nude of this piece and all these issues that is
    your cost. You’re monitoring your maintenance providing sufficient
    space. Everything was taken care by Cloud. So let us try to understand what this cloud
    is exactly. Well think of it as a huge space that is available online for your usage.
    This is a very generic definition to give you to be more specific.
    I would be seeing that think of it as a collection of data centers now.

    Yes, it does again at a place where you store your data or you host applications basically,
    so when you talk about these data centers, they were already existing.
    So what did Cloud do differently? Well, what cloud did was it
    made sure that you are able to orchestrate your various functionings applications managing your resources properly by combining all
    these data centers together through a network and then providing you the control to use this resources and to manage them properly to make it even more simpler.
    I would say there was a group of people or organizations.
    Basically that went ahead and bought these servers these compute capacities storage places compute services and all those things
    and they have their own channel or Network. All you have to do was go ahead and rent those resources only to the
    amount you need it and also for the time that you needed.
    So yes, this is what cloud did it let you rent the services that
    you need and you Only those services that you need so you ended up paying for
    the services that you rented and you ended up saving a lot of money.
    The other thing is these service providers.
    They take care of all the issues like your security your underlying infrastructures and all those things.
    So you can freely focus on your business and stop worrying about all these issues.
    So this is what cloud is in simple words. It’s a huge space which has all these services available and you can just go ahead and
    pick and render services that you want to use.

    So what is cloud computing? Well, I’ve already discussed that just to
    summarize it I would say it is nothing but an ability or it is a place where you
    can actually store your data. You can process it
    and you can access it from anywhere in the world.
    Now. This is an important Point say for example, you decide to
    choose a reason for infrastructure somewhere in u.s.

    You can certain maybe China or maybe in India
    and you can still have access to all your resources that is there in u.s.

    All you need is a good internet connection. So that is what cloud
    does. Makes the world accessible it lets you have your applications wherever you
    want to and manage them the way you want to so this was about cloud computing
    guys. Next we would be discussing different service models.
    Now you need to understand one thing you are being
    offered cloud services the platform to use your services or your
    applications basically, but then different people have different requirements.
    There are certain people who just want to consume a particular
    resource or there’s certain people who actually want to go ahead and create The View.
    Own applications great the own infrastructure and all those things.
    So based on these needs we have particular service models that is your Cloud providers provide
    you with a particular model which suits your needs.

    So let us try to understand these models one by one we have these three models that is your iaas
    your paas and your saas. I would be discussing them in the reverse order.
    That is I would be talking about saas first and then I would go
    upwards so let us start with saas or sad. SAS is nothing but a software-as-a-service.
    Now what happens here is basically you are just consuming a service which is already being maintained
    and handled by someone else to give you a valid example.
    We have a Gmail. All you do is you send mail to people
    and you receive mails and whatever functionality you do
    is you just use the service that is there. You do not have to maintain it.

    You do not have to worry about up scaling down scalings security issues and all those things.
    Everything is taken care by Google say for example But yard email is what
    I’m talking about Google manages everything here.

    So all you have to worry about is consuming that service now this model
    is known as software as a service that is saas.
    Next we have passed that is platform as a service now here you are provided with a platform where you can actually go
    ahead and build your own applications to give you an example.
    We have our Google app engine. Now when you talk
    about Google app engine, what you can do
    is you can go ahead and you can create your own applications and you can put Put it on Google app engine so
    that others can use it as well. So in short you are using
    the platform to create your own applications, and lastly we have iaas that is infrastructure
    as a service. Now. What do I mean by this? Well, the whole infrastructure is provided to you so that you can go ahead and
    create your own applications. That is an underlying structure is given to you based on that.
    You can go ahead and choose your operating systems the kind of Technology you want
    to use on that platform the applications you want
    to build an old those things. So that is what an IAB S is infrastructure-as-a-service basically, so these were the different models that I wanted
    to talk about. So let us move further and discuss the next topic.
    That is the different deployment models that are there.
    Now when you talk about deployment models, you can also call
    them as different types of clouds that are there in the market we have these three types.
    That is your public Cloud your private cloud and your hybrid Cloud.

    Let us try to understand these one by one now
    as the name suggests the public Cloud it’s available to everyone you
    have a A service provider who makes these
    services or these resources available to people
    worldwide through the internet. It is an easy and very inexpensive way of dealing with the situation because all you have
    to do is you have to go ahead and rent this cloud and you’re good to
    use and it is available publicly. Next. We have the private Cloud now.

    This is a little different here. You are provided with this service and you can actually go ahead and create your own applications.
    And since it’s a private Cloud you’re protected by a firewall.
    Add wall and you do not have to worry about various other issues
    that are there at hand and next. We have our hybrid Cloud now.
    It is a combination of your private cloud and your public
    Cloud say, for example, you can go ahead and build your applications privately you can use them.
    You can consume them you can use them efficiently.

    When you sense that peak in your traffic. You can actually move it to public that is you can move it to the public cloud and even others can have access to it and they can use
    it. So these are the three basic deployment models that are there for you.
    Exposure or your usage rather and you can go ahead and use those as well.
    I hope this was clear to all of you. So let us move further and try to understand the next topic that has different
    Cloud providers that are there in the market. Now as I’ve mentioned what happened was since
    Cloud came into existence quite a few people went ahead and they bought their own infrastructure
    and now they rent the services to other people and when you talk about this infrastructure, they’re quite a few people out there who are actually providing
    these cloud services to different people across the globe now when you talk about These Cloud providers.
    The first thing that should come to your mind is Amazon web services
    because it is highly popular and it leaves other Cloud providers way behind.

    The reason I’m saying this is the numbers that
    talk about Amazon web services to give you an example.

    If you talk about its compute capacity. It is six times larger
    than all the other service providers that are
    there in the market say for example, if you talk about the other service providers in the market if the
    compute capacity combined was ex-army Has on web services alone gives
    you a capacity of 6 x which is huge apart from that.
    It’s flexible pricing and various other reasons.
    That is the services it provides and all those things.
    It is rightly a global leader and the fact that it had a head start
    that is it started way before many other services that are there in the market.
    It actually gained popularity. And now we see quite a few organizations going ahead and using Amazon web services apart from that.
    We have Microsoft Azure, which is a Microsoft product and
    we all All that when Microsoft decides to do something
    they expect that they kill all the competition that is there in the market.
    It is still not in terms with Amazon web services or few other service providers
    that are than the market but not very neck to neck but it is probably the second best
    when you talk about Amazon web services or the cloud service providers in the market.
    So, yep, it has a lot of catching up to do when you compare it
    with Amazon web services, but it is still a
    very good cloud service provider that is there in the market.
    Then we have something called as Google Cloud platform again a very Very good cloud
    provider in the market. Now. Why am I saying this? We all know the
    infrastructure that Google has to offer to you.
    It has one of the best search engine that is then the market and the amount of data they deal with
    every day is huge. So they are the Pioneers when you talk about big data and all those things and they know how to
    actually handle this amount of data and how to have an infrastructure
    that is very good. That is why they have a very good facility and that leads to it being one of the cheapest service
    providers in the market. Yes, there are Features that DCP offers
    which are better, even than Amazon web services when you talk about its pricing and the reason for it is it has various other services that are there
    water does is it helps you optimize various costs how it uses analytics and various other ways by which it can optimize the amount of power you use
    and that leads to less usage of power. And since you are paying less for power that is
    provided as a paying less for power you end up paying less for your services as well.
    So that is why It is so cost efficient. Then the other service providers that is we have digital ocean.
    We have to remark we have IBM which is again very popular.
    But that is a discussion for some other time. As far as the service providers go.
    These are the major ones that as we have Amazon web services.
    We have Microsoft Azure, we have DCP which are talked about a lot.

    This was about the basic Cloud providers and the basic
    intro which I wanted you all to have. I hope you all are clear with whatever Concepts
    we’ve discussed in time. So let us move further and switch into the demo.
    Let us try to explore a few of these services or Cloud providers
    as in at least the introductory part. Okay. So what I’m going to
    do is I’m going to switch into the console basically where we can take a look at these Services one by one.
    So yes guys, what I’ve done is I’ve cornered and have logged
    into my AWS account now AWS provides you with a free tier
    and then they have the paid Services as well. Let’s discuss these
    one by one first. I would talk about AWS then I will talk about gcp and to
    some extent I would also discuss a juror as well, but But let’s
    focus on AWS for first one point, which I did not mention while going through the concepts was AWS provides you
    with a free tier. Now when I see a free tier, this is where you do not have
    to pay any upfront money. You can actually go ahead and have access to AWS services and see how they work and once you are
    confident and comfortable with them, you can actually go
    ahead and decide whether you want to buy those services or not.

    So yes, these services are made available
    to you for free for one complete Year. Yes. There are certain restrictions on it.
    But as long as you stay in those restrictions,
    you won’t be Panting if you cross those restrictions.

    Yes in abuse will charge you now. How does AWS do
    that? Well, when you create an account, you have to give in your credit card details or
    debit card details, when you do that database will cut a lump sum
    amount from your account verify account and reinstate
    that amount back into your account so that none of your money is used but just a verification is done that this is your valid
    credit card or your debit card and once your 12 month free trial expires, then they would notify you that your free trial is over.
    Would you want to go ahead and continue using our services if you say yes, then they would charge
    meanwhile, they won’t charge you so you can stay relaxed and you can actually go ahead and give you a credit card or debit card details, but just make sure that you
    set an alarm and once your free trial gets over
    you kind of either revoke your exes or go ahead and continue with the paid services that it abuse has
    to offer to you. So what does this re-tear has to offer to you?
    Basically, let’s take a look at those. Well firstly we have compute Services when you talk about
    AWS and Name a few we have ec2. We have Lambda
    which are popular Services now easy to is something like a raw server where you can actually go ahead and post our websites and applications.
    It is very popular. And if you want to use it,
    it obvious gives you 750 hours per month for free.
    Then you have some service called as Amazon quick
    set which is basically an analytic service and I won’t get
    into the details of what it does basically, but you have a space of
    1 GB available to you that is nothing but spice capacity
    basically again, I won’t get into the details
    because I want to Stick to the surface as far as the session goes, then you have
    other services like your database service, which is an RDS.
    You have your storage service, which is S3 Amazon Lambda.
    Now Lambda is another compute service which is similar to
    your ec2. But ec2 is more of a place where you can host
    a websites. Where as Lambda does not let you host a website.
    But yes, you can definitely go ahead and do a lot of background application work.
    When you talk about AWS Lambda apart from that database also provides with various videos that
    talk about how do you want to go ahead and
    get started with using this? Sosa’s how to create an account how to create instances and all those things.
    So this was about the free tier let us kinda move further and see how the console
    looks like. You can actually go ahead and create your own instances.
    You can do a lot of things. So this is what the different services that a device has to offer to you.
    You have your compute Services developer tools machine learning and I’ll takes storage database Services.

    You can actually go ahead and use these on your
    own you can go ahead and create certain instances here now once you click here oniy Easy to you get to see the number of instances
    that are active the security groups that are there the keep is that
    you have let us see or take a look at an instance. Basically.
    I would tell you how to create one. I won’t create
    one myself because I have certain ones running already.
    I would just walk you through how the process
    works. When you click on that launch instance.
    It will give you options in what kind of an instance do you want to create so you can actually go ahead
    and pick the one that suits your need based on the OS you’re using and stuff like
    that since I’m using a Windows. We’ll be picking one for Windows and I
    would be using the one that is freely available to me or eligible
    for my free tier. So when I say select I see that a free tier eligible T2 micro instance is available to me.
    I can either click on this and directly go to the final step of creation, or I can take a
    step by step approach. That is if I want to modify it.
    I can go ahead and given these details as in the number of instances my purchasing options
    Network subnet auto-assign public IP and all those
    things. So let’s click on next and we can also also put in these details, but I’m going to stick to the
    default decisions or the selections. You can also go ahead
    and configure your security groups. I would talk about that
    as well. Do not worry and finally it would say do you want to remove and
    launch it? Once you click on this you would have
    a new instance they would be couple of statistics and you’d have your instance available for use to give you an example take a
    look at this as you can see. I have two instances running
    and the security checks are done and I can actually go
    ahead and do a lot of things with it. I can actually go ahead I can connect to a server.

    Again have my security group security policies. And when you have
    an instance, you can do so many things for hosting a website
    and the other things that are there now, I just mentioned keep are values and I mentioned security groups.
    Now when you talk about the key pair it is nothing but an authentication process that lets you use your instance.

    It is a verification process. Basically it varies when you talk about using it on your Linux and using it on your Windows Windows, you would need it for an external login as far as when you talk
    about Linux you’ll have To go ahead into your terminal and generate those SSH or your secure server Keys
    basically or secret selkies rather and then log into your website and
    then go ahead and use it on your server basically.

    So this is what happens. So that is something
    that you called as a keeper value when you talk about AWS a keeper value
    once created it is unanimous or it is not unanimous rather.
    It is primary to a particular instance and you should not lose it
    because if you do that instance becomes useless
    for you, so You have to make sure that once you create a key value pair that
    key value pair it stays with you and when you do try to connect to a server that keeper value or its value is
    available with you so that basically you can switch
    to your server and connect to it. And then you have something called as your security groups as well.

    Now if you come down here you can go ahead and set in your Security Group policies.
    Whatever. Those are you can create a new security group and you can just go ahead and add rules as in what kind of security policies you want.
    Say, for example, you have your HTTP https now if you’re using Windows, you’ll be needing our DP and
    those kinds of rules. You can go ahead and
    select a source you want to and accordingly you can set in your security
    rules. Once you create on click on create you’d be having your Security Group
    up and running for you and you can like stay assured that your so-called services
    are more than secure here. So yeah, this was about
    Amazon web services and how its interface looks like
    then you have something called as your gcp
    now gcp to has a free. The only difference is gcp gives you an a balanced amount as in say some amount of US Dollars and
    you can the services are paid services, but you can use this balance
    to go ahead and use those services. So it pans out to similar approach which aw stakes in but if you talk about their pricing, aw charges you on hourly basis,
    whereas your Google Cloud platform charges you and
    second basis. So it is more affordable. Say for example, you stop using a particular instance at
    two minutes. You’ll be charged. Only for those two minutes, but if you stop using an instance for two minutes
    in AWS would be charged for a complete are so that is the difference between the two as
    far as logging in is concerned again, you’ll be going ahead and giving in your credit card details here as well.
    The difference is here. You have to make sure that you do not enable your billing because once you do that, trust me, you’re going to end up paying a lot
    of money because I accidentally left few instances open.
    The last time I logged in and I was charged
    Hefty live without me being noticed. When you
    see a button missing that enable billing make sure that you use it carefully because you do not want to be charged for something that you are not using.
    So when you talk about gcp this is how the interface looks like.
    You have all the services here as well there you had your computer services you have you have your compute engine basically and you can to come here
    and create your instances. You can click here and you can go ahead and go through the process of
    creating your instances, but I won’t be creating an instance as far as you are gcp is concerned because I’ve given you a reason already.
    I’m happy working with AWS for now. This is your dashboard where you get in all the information as in whatever
    is happening as far as your account is concerned.
    So this is one of the accounts managed by a person I know who works with me and the certain projects which he
    has gone ahead and created. So it’s the information for those details are the details for that
    project basically and then you have something called as your Microsoft Azure now, I won’t log in and get into the details.

    But yeah it to provides you with similar services. So is
    this what about the different cloud? Riders that are then the market and I just
    wanted you all to have some understanding as in how do these things work?
    And what do these Services have to offer to you? I hope this is clear
    to all of you. Why a Microsoft is your why are you guys so interested in Microsoft with yard.
    Now one thing is that Microsoft is your is actually becoming pretty big.
    I mean the cloud leader on papers. It is AWS right now, but if you see the growth with that has
    been happening in the past few years Microsoft is your is actually coming out pretty big.
    Right? So and that is the reason if you look
    at this graph, there are the job opportunities
    for Azure has been on a rice and that is like this is the primary reason that you guys want to learn about Microsoft with your because obviously you want to make a career shift into the cloud industry, right and for that availability of
    jobs should also be a factor. And if you see the graph
    this graph is has actually been taken from indeed.com,
    right and as you can see the graph is rising. So if you see as 2014 it was around .01% in the mid
    in the late 2016. It’s reached around .09 it came down to a fault.
    But then again it is at a right. So this is apartment that you see but if you take my advice because I have seen the industry as far as
    I know these jobs. Are going to increase multiples in the future as well.
    Right? It’s not only restricted to is or if you talk about AWS if
    talk about any Cloud technology, it has become imperative for you to learn about
    Cloud because it is the thing everything in the next 10 or 15 years is going to be on the cloud right any company
    which is still on its own for my servers will move to the cloud one day or another because
    that is inevitable that Is something that has to happen and that is the reason it becomes very important for you guys
    to skill up to the cloud level right now talking about is your like I said, so
    jobs are increasing every day jobs are there for you?
    So what needs to be done from you guys is prepare for the exam.
    That is therefore Azure give that exam get the certification get hands-on experience and get the job.
    This is the course. This is the path that
    you should have for taking a cloud computing roll. Right having said that
    so that is this is the reason why we learning about Microsoft Azure today moving on. Let’s
    understand what Microsoft is your is exactly so Microsoft is your is a
    growing locations through Microsoft’s Global Network of data centers,
    right? So by using the Microsoft infrastructure, you
    build deploy and manage applications on the has your environment and Like
    as you’re like I said, it’s a cloud provider.

    It provides you the cloud services you’re using those cloud services, but those cloud services are actually on the Microsoft infrastructure.
    And that is what you are paying them for right? So, this is
    what Microsoft Azure is all about guys. Now, let’s see a use case now that is My Philosophy is that rather than doing all the theory
    first and then going on to the Practical I would like to follow the reverse approach,
    right? I would I’d like to begin from practicals because that is what your exam will be based on your exam will be
    based on real-life example that you based on real-life scenarios Lou based on what kind
    of Hands- On knowledge you have in your as your domain. All
    right, and that is the reason every session of ours will have a use case through which we will try to analyze how we can implement it in the cloud.
    Right? So this is your first use case. This is kind of simple guys.
    So please pay attention. So we are trying to make a website which is something like this.

    Right? So what happens here is you have a set of images and these images are
    actually being played in the background. And in this website, you have a functionality to upload more files to the cloud and once
    you do that those files will automatically be added in the
    slideshow and we’ll start running. Alright, so this is our use case
    and we have to implement it on the cloud. So there are two stages in the way.
    We are going to take this use cage the first stages. We’re going
    to apply pure logic, right? We are going to understand how we can actually deploy it on any cloud
    service right? Not only does your butt any Cloud platform
    if it is out there, how can we implement this use case?
    So let’s see that first and after that once you have understood that will try implementing it
    in as your so first. Let’s see how We will implement
    this in a general scenario by pure logic. So your user base will be
    accessing the internet right now when your user will try to access the website, he will enter the website name, right?

    So all of that traffic will come at this point, which is called a load
    balancer. Now, what is the load balancer a load balancer is basically a
    service which distributes your traffic equally among the server’s running at that time.

    So say there are like five servers running your website then and if traffic is
    coming on to your servers that traffic will be distributed among those five servers by the load balancer.
    So the job of the load balancer is to distribute
    the traffic equally among the service, right? So this is
    what the load balancer is all about. So your user base from
    the Internet is trying to access your website.

    So the traffic comes to the load balancer and the load balancer separates or Segregated traffic into equal proportions and give it to the server’s right.
    So once the traffic comes onto the server’s the server’s process the request
    and if you talk about our website, so our photos are actually stored on a
    file system, right? So whatever files you are uploading or whatever files are there,
    which are already been uploaded there on a file system, right?
    So it will access that file system for fetching those files, but our servers they don’t know.

    What files do we want? Right? What is the like say, for example,
    I upload a file and before uploading the file.
    There were three pictures running in the background. So my server should know
    what are those three files that I have excess right? There
    should be a list of those files that the server has to play in the background.
    Now that list of files is actually stored in a database, right?
    So what my service will do is it will first get that list from the
    database right? And once it gets at least it will fetch that.

    List of files from the file system say there are around five files
    in the database. So my server will interpret the addresses of those
    files from the database and then it will call the file
    system and get those addresses or get those files from there and Fry to show that
    in this slideshow in the website. Now when we upload the file, what happens is first your
    database is updated, right? So whatever file is being uploaded to your servers,
    that file is Renamed according to whatever parameter you have set because it has to be unique.
    Right each file has to be identified with a unique name,
    right? So it renames that file to that unique name
    and then store it on the database once entry has been made on the database then it gets uploaded onto the file system.
    Right? So guys, this is the architecture of your application just as the logic
    that will be following today. So let’s try to implement this architecture has your nose Understood how we can actually architect this use case in a general way.

    Right? Let’s see how we can implement it in the
    has your environment. So in the Azure environment the servers that
    you’re trying to implement is actually provided to you by a service called
    the app service. What is AB service will be discussing in the further slides.

    Then let’s talk about the load balancer and auto-scaling.
    So the load balancer is actually implemented by the has your load balancer and auto-scaling, right?
    And having said that then we talked about the database.

    So database is the mySQL database that will be using in Azure and then you have the
    file system which is called blob storage in your what are these Services you might be confused.
    Okay. What is your load balancer? What is the
    app so is what is mySQL database? What is blob storage?
    Don’t worry. I will explain everything to you in the coming
    few slides. So let’s go ahead then. So these are the
    services that you’ll be using in a jar. Let’s go ahead and
    understand these Services one by one. So let’s
    talk about the app service first. So the app service is basically a
    part of the compute domain. All right, and in the compute domain you have a lot of sources, but
    why are we using the app service? Let’s understand that.
    So there are basically three kinds of services in the compute domain if you talked about in a
    very broad sense. The first service is called the virtual machine.
    Now. What is the virtual machine a virtual machine is just like a
    traditional computer. Now that you have in your in-house data
    house. It is a computer that is accessible to you and
    you can do anything with that computer where you
    have all the rights to that computer. All you have to do is basically what you will do with a virtual machine is you will say that I need this
    much RAM. I need this much storage and I need this much configuration. Please
    give me a computer. So as your will create that virtual
    machine for you, right and it will give you the IP address and the password for that machine.
    What you can do is by remote desktop connection. And you can enter that IP address and the password
    and you will be able to connect to that computer. Now, once you connect to that
    computer, it is your computer annoyed you have the access to the user
    interface. You can do anything on this computer. You can make it a website server.
    You can make it a worker to your environment.
    You can use it to for image processing right? You can do multiple things on a so I like you I might be doing on your server as well.
    Right? So this is what virtual machines is all about.
    You can configure it to Become anything. Our next service is
    called the app servers. So it is a basically an automated version of a virtual machine,
    but with limited possibilities when I say limited possibilities
    it is this service is actually very more focused. Right so app service.
    Basically, it doesn’t give you the access to the user interface.
    All right, but that gives you more simple interface to deal with because if you want to host a website in virtual
    machine you would have To configure the virtual machine you would
    have to configure the firewalls. You would have to install
    the necessary software like say for example, you have a PHP website, right?
    So you would have to install PHP software on a virtual machine and then you would
    have to copy those your website files or the files that you have coded into a specific folder
    and then you would have testified the configuration for your firewall and everything.
    Right? So there were a lot of things that you had to do in your
    virtual machine with app service. You don’t have to do anything.

    Then you just have to specify what language you want.
    Say, for example, I want a PHP website. So I’ll select PHP.
    I’ll do next then last me what kind of configuration of
    servers I want. I’ll specify the configuration. I click next and that is it.
    My website will be deployed automatically. It will ask me to upload the files.
    I’ll upload the files. It will automatically send it to whatever folder it
    is required and this done right? So this is the part of app service right?

    It is more automated because the Pitching machine everything had to
    be done manually, but with app service everything happens automatically.
    I just have to upload my files, right? So this is what app service is
    all about. So, like I said, so app service is basically used to deploy an application. All right, you cannot do anything else with it.
    You cannot use it to process a customized workload or something like
    that. You can just use it to deploy an application and that is why it is called an app service Right Moving On Let’s Talk.
    Talk about functions of functions is basically a very new technology.

    It’s called the server less architecture it basically what it does is you don’t have
    to specify the configuration. You don’t have to specify anything.

    You just have to upload your code and it executes it
    for you, but it will not deploy any application for you.
    For example, you want to host a website. It’s not do that.
    It just does processing in the sense. It will only do
    background tasks for you. For example, if you Have let
    me take an example which uses both these Services.
    If you have say an application like Instagram, right?

    So user uploads His image on your application. And then your application has to
    store that image now before storing that image. Maybe you want
    to compress the image or you want to apply a filter to it or whatever,
    right? So from your application the file is uploaded.
    And now these many tasks have to be done if these tasks are actually
    configured in your code, which is Actually uploading the file
    as well. It will actually increase the overhead on the server which
    is hosting an application. But what we can do
    is the way things happen today is everything is distributed.

    Right? So from your application only the file will
    be uploaded. Once the file is uploaded. Right?
    The tasks will be the tasks like renaming the file or compressing the file applying the filters.

    Everything will be done using the functions.

    So the function will get invoked whenever the
    file. Is it uploaded using the app servers and the function will execute all the tasks that
    have to be done on that particular image this reduces the overhead on the server which is hosting your application. Right?

    And you have your background tasks will be implemented
    by a functions and then will be stored in the respective file system.

    Whatever you have coded your function to do right?
    So this is basically the difference. So recapping again virtual machine is basically a computer you can configure it to anything
    you can actually we use app servers in a virtual machine Mallory.
    For example, you want to deploy an application you can use it by configuring a virtual machine,
    right? You can also use it as a function your virtual machine that I mean to
    say as in you can configure it to only execute background
    tasks. But the thing is you have to configure everything manually.

    If you want an automated version you can go with app Service app Services used to deploy an application. Right?
    But if you are use case is not about deploying application you want to do some
    raw? Searching you might as well hop for functions,
    which is a service which is not used to deploy an application but is used to execute
    background tasks. All right, so guys a doubt and whatever we have discussed like we discussed virtual machine.
    We have discussed app service and we’ve discussed functions.
    All right. Like I said, we are using the app service why because we are deploying a website, right?
    So for deploying a website, I need apps away. So it cannot be done using functions
    can be done were doing virtual machines as well, but it will need
    a lot of manual work and our job is to make everything faster right cloud computing is all about speeding up things.
    The speed of implementing is increased right so I rather use an app service and
    upload my code on the Service and it will deploy the website from right it’s that simple guys.
    Let’s move on to the next topic of today’s discussion, which is the blob storage.
    So the blob storage is basically the file system that you need to upload your
    files, right? You definitely need a file system. There is no alternative to this.

    Right. So your blob storage is the place
    where you will be storing your image files, but why did we choose the blob storage by not some other service from the storage to Maine?
    Let’s discuss that. So in the storage domain basically, you have three kind of services you have more services well, but these are the three main services in the blob in the storage domain. You have the block storage.
    You have the Q storage and then you have the backup, right?
    So the block storage is like I said is a file system on which
    you can upload any kind of file, right? And that’s
    about it. There is nothing more to blob storage.
    This is the thing next is Kyu storage Secure Storage is basically a queuing
    service whenever you have to synchronize tasks. For example
    process one has to be done before process to and process to help it to be
    done before process 3. So what you can do is you can bundle these tasks
    in a sequential Manner and you can add it to the queue storage.
    Right? What the queue storage will do is it will actually hold these tasks
    according to the sequence that you entered, right?
    And whenever the queue storage is accessed it will give
    them only the first task now the second task is the third task first.
    So the way It functions is like this say for example,
    like I said the image processing application. I
    want to rename file first there won’t I want to add filters and then I want to store it on the file system.
    So these three tasks I will write it down and I will add it into the
    queue storage now. See these tasks will be done by my functions.
    All right. So what functions will do is it will try to interact
    with Q storage and last for a task, right? So Q
    storage will give the task to Functions in a very sequential
    manner in the sense that it will first give it the task to rename the
    file. So it will rename the file. Once that task is done.
    It will again try to xsq storage and then cute store has been given a task to filter the image or apply filter to the image, right then we’ll apply a filter to the image will be done with that and then it will
    try to again the to storage and then it will see that okay now it has
    to store that file in a file system which is specified the code right and it will pick that
    task do it. It and be done in the first file
    and then it again XS Q storage in the process goes on. Right?
    So basically Q storage is used to give a sequential manner to the processes that
    are trying to execute having said that this is a work queue storage then comes back up.
    So backup is a service where in you can store your in frequently accessed data,
    right? What is your in frequently accessed data could be for example in my company.
    We take a record of everything right we take our Out of
    every class that we do we take a record of every query
    that you guys raised now save the classes that were taken say like 2 years ago, right and as obviously I
    cannot delete those classes because they have to be
    kept for record. But what is the point of keeping them on my life hard drive because my
    life hard drive is where I do. My current tasks, right?
    So rather than keeping it on my life hard drive I say, okay.
    Let me keep it in a CD or a pen drive and keep it somewhere where I can take it out when I actually need them.
    Right? So this is the concept of taking a backup now
    similarly. If you want to take a backup in as your say you have your virtual machine and you
    have stored a lot of files on your virtual machine, but you think okay.

    I don’t need these files anymore. Or maybe I don’t need you file it as of now, I might them need them later.
    So why do spend that much on the stories that you’re taking
    on the virtual machine right rather than storing the in frequently
    accessed data. Why not put more frequently exist. So what you
    can do is the in frequently accessed data that you have in your machine on the cloud.
    You can actually take a backup of that and store it in the backup service.
    Now, why will you store it in the back of services?
    Because storage is more cheaper when you talk about the backup servers because obviously first of all,
    they’ll use magnetic tapes or they’ll use ssds or something like that to store your data now, why is it cheap is because obviously it has a downside that the response time of the time to retrieve the files from a
    backup service is obviously more. For example, if you are
    stored everything in your virtual machine, you can like
    go to that particular folder access that file and that is it right.
    But if you have stored in the backup service, the retrieval
    actually takes time, but it is worth it because you don’t use that file every day,
    right? You won’t be using it and also you’re paying less so it doesn’t pinch you that much because
    you’re paying less and you are not using that file very Yes, well, so why not
    put it in the backup service? So this is what the backup service is all about.

    Now today in our implementation. We are using the blob
    storage for obvious reasons that we I want to store my image files, right?
    So I not store it on the back up obviously and not
    show it in the queue storage As Told in the blobstore it because that is what that service is meant to do.
    Now. The next service from Azure is the MySQL service
    from Azure. It is basically a MySQL implementation on the
    LG. Our infrastructure was right, so you Can use any database you
    want another you have an SQL service, which is purely SQL.
    So if you’re comfortable with that, you can use it. I am using MySQL for my use case today because that is
    the way I have quoted my application to be right.

    So it is just personal choice. The next service that we are going to
    talk about is auto-scaling and load balancing. So like I said load balancing is when you want
    to equally distribute your Among the number of servers
    that are running that time and auto-scaling is actually scaling up the number of servers that you’re using according to the traffic that is coming onto your website.
    So you can actually set a metric that so many obviously when more
    traffic is coming onto your website your CPU utilization will increase because you have to process more requests now.
    Yeah, so your server will be processing more requests and that is the
    reason your CPU usage will He’s so you can actually set a metric.
    Let’s say my CPU usage when it increases 60 or 70% increase one more instance or increase three or four more inches high.
    So it is based on your personal use. So this is what
    order scaling is all about. And obviously when you using Auto scaling,
    the number of servers is changing constantly, you need a load balancer along with
    it, right the load balancer so that say you have six or
    seven servers which are running right now
    and say the traffic decreases and it sees
    okay now the sea Utilization is going down. So it will reduce
    the number of servers. Right? So when it will reduce the
    number of sources do load balancers should identify.
    Okay, though. They were seven servers before now there are like three so you’ll be Distributing the traffic according to those three servers, right?
    So the load balancer actually pays a very important role in the
    order scaling process having said that so this
    is how all this killing actually works. So say you have one server, right and the usage increases it goes on to become two servers and then again the usage increases it becomes 3 service right now when the users decreases these three servers
    can be reduced to one server or can be reduced
    to so so this is a diagram representation of what or scaling
    is. We talk about load balancer. Like I said, so load balancer is a very crucial part of Aura scaling process because load balancer is the part which actually distributes the traffic according to the
    number of servers that are running at that time.

    All right. So this is how the process Smokes the traffic comes on to the load balancer and the load balancer sees how many
    servers are running and distributes traffic according to that.
    All right. Okay. So we’re done with the services.

    These are the services that we’ll be using today.

    So now we will see how we can launch these services in the has ER user
    environment. So guys will talk about the Apsos first. We’ll see
    how we can launch an app service in the as your UI. Okay, let me show you the user
    interface for a year now. So guys this is how the user interface for as
    your looks like. You have all the services listed here on the
    left side. Right? And this is the dashboard. This is called the dashboard whatever Services you launch.

    You can pin it here for basically getting accessed quickly.

    It is just like a desktop on your computer which has all the shortcuts in everything and this is
    what the dashboard is actually used for. All right. Having said that
    let’s see how we can launch the app. So In Azure,
    so first you will click on app Services as you can see from
    here. You can click on app services and moving ahead.
    Once you have clicked on app Services. You will reach this plate click on create app services and then you’ll click on web
    app and that is it. Let me show you how you do that. So you’ll click
    on app Services click on create app Services you go down click on web app.
    And over here as you can see after this, you will reach the screen when you will see that you
    have four options. You can either code your website in.net PHP node.js or python. So if it
    is either of these four languages, you don’t have to
    do anything. You just have to upload your code in this web app that
    you’ll be creating and your app will be deployed automatically without installing any software without doing any
    configuration Justice, right? Okay. So once you have reached this page You will
    click on create. So let’s click on Create and then you will reach the screen. So now you have to give
    your application some name. So let us give us this
    name as in Eureka – 0 1 so see that everything is fine.
    So this subscription is pay-as-you-go Resource Group is something which you
    can create or you can use existing. So Resource Group is something it’s
    a group of all the resources, right? So if you put if you are
    it will be creating a storage. Count will be creating database account.
    We are creating an app. So it’s right. So all of this
    will come under one group. It can be clubbed in one group and will be called as resource for any changes that you want put
    across the group you can do to the resource Group.
    All right, we’ll be discussing in detail. What a resource Group is in the further modules, but for now all you should understand is that a
    group of resources is called a resource book. So if you have
    an application and just utilizing say three or four resources,
    it’s better to put those resources. Under one group.

    All right. So this is about that. Then you have the app service plan. So
    app service plan is something as in what kind of
    computers you use and everything. So let’s create a new plan for you so that you understand it better under the pricing tier.
    This is the main part that you have to select guys.
    You can select the app service plan it can give it some name.

    Let’s give it as a service – 1. All right, and this is my
    app service plan. You can select what kind of plan you need.
    Let me see. Like the basic plan as of now and click on select right and then click on OK.
    So this was about Apsos plan. You can click on application insights which
    basically gives you the monitoring tools for now. Let’s not discuss it.
    Let’s not go into it. We’d be discussing it later. And now
    let’s click on create. So I am taking the PIN to
    dashboard which will basically create a shortcut on a dashboard to this application comes in handy.
    And that’s it guys. You will click on create.

    Alright, so now my application is being created.
    Okay, so all right why my web app is deploying. Let me go back to my slide and let’s
    jump onto our next service which is blob storage. So like I said blob
    storage just like a file system. You need a file system to show your
    files, right? So that is what the blobster is all about.
    Let’s see how we can create a blob storage instance in Azure.
    So you will reach this is the dashboard you reach the screen. You will click
    on storage accounts. Once you have clicked on Story the council click on ADD.
    And that is it guys. Nothing much acquired. Let’s go ahead and do this I go here.

    I’ll click on storage accounts. I will reach the screen and click on ADD and I will start
    entering the values. So let’s give it the name called Eureka – 0 1
    so this is taken. Let’s give it a name as well as your I do.
    Write this name is available. All right, the performance should be standard
    because this is a demo replication is not required.
    So I’ll say locally redundant Storage storage service encryption should not require secure transfer is not required and subscription is pay-as-you-go.

    Okay Resource Group. Let’s select a director – 0 1 because this is the resource Group that
    I selected earlier, right and let’s pin it to dashboard.

    click on create Alright, so my web app has been deployed already and my storage account is also being deployed.
    All right, so this was about it. Let’s go on. Let’s see for our MySQL.
    So for MySQL, let’s see what all we have to do. So we
    will click on you. We will click on databases and then we’ll click on as your database
    for MySQL. All right, and that is about it. Let’s
    go back and do that. So we’ll click on new. The search for as your database.
    for MySQL All right here this so I click on this and
    I’ll click on create. So here it is. I have to enter the server name.
    Let’s enter the server name as Eureka – 0 1 it is available.
    It’s good. The resource Group should be the same. So let’s select a riruka – 0 1 so admin login name.

    Let’s give it as any Rekha password. Let’s give it any Rekha one,
    two, three, four confirm the password and Eureka one, two,
    three four, and it is asking me some special characters
    or let me add the special character as well.
    Okay. So basically you cannot have the login name and your password.
    So let me change the password to add you one two, three, four
    exclamation same in the confirmation. All right. So
    this is available. Now the location sounds introduced version is 5.7 pricing
    tier. Let me see if there is something more or less.
    All right. I think this I click on OK. Bennett dashboard and click on play.
    It’s pretty simple guys. You would know when you will do the Hands-On on yourself.

    So the pricing tier can be the minimum if you are using it for demo or if
    you’re creating an application, which is for global scale application huge can choose the pricing Theory according to that.
    Alright while it is deploying. Let’s move ahead.

    So let’s come onto the auto-scaling part now. So basically we have to configure our web app to order scale as and when required It so
    let’s see how we can do that. So let’s understand the types of Auto scaling first.

    So basically there are two types of scaling one is called horizontal scaling and one is called vertical scaling.
    So horizontal scaling is when you are increasing the number
    of servers that you require say, you don’t have an i7 server.
    For example. All right. Now the usage goes up so you take to i7 servers and if it again goes up you take 3i7 SOS, right.
    So this is what horizontal scaling is all about right?

    Let’s come onto vertical scaling now. So vertical scaling is when you are increasing the capacity or the configuration of your system say you were using an I3
    system before right the traffic increases. So now you’re using an I-5 system the traffic increasing now you’re using the i7 system.
    So you are having only one machine but you’re increasing the configuration of your system, right?
    So these are the two Types of scaling which exists in auto-scaling also
    the other way is manual scaling so you can also manually scale up your in the number of instances or the configuration of your system.
    Right? So the way to do that is to manually go into the service change the
    pricing tier and you are said this is how you
    manually scale auto-scaling. I’m going to tell you in a couple of you slides.

    Also guys when you are auto-scaling like I said load balancing is
    Quickly attached to it. Alright, so when you would be orders killing in a web app, you don’t have to configure the load balancer.
    The load balancer is configured automatically and said automatically for
    you to be used right because it doesn’t make sense to use or scaling
    and not use load balancer. And that is the reason as your has automated the
    process of attaching a load balancer when you using orders Right Moving ahead guys.
    Let’s see how we can launch this instance. So guys first
    you will click on app Services. You will go to your particular.
    Instance that ER have launched you will go to scale out and you will click on enable auto
    scale. All right. So let’s do that. We will go to app Services which is here.
    So this is my instance. I have launched I click on idea raiga – 0 1 I’ll
    go down. And as you can see I have two options.
    I have scale up and I have scale out when I click on scale up.

    You see the pricing tier so I can increase the configuration of
    my system right? But this is not about what I
    want. I want to scale out which is I want to increase the number of instances
    running right now, right? So so it says Auto
    scale is not supported for basic chair of web apps. Okay,
    so let me change my configuration. Alright, so if I go to scale out now, you can see that I have the option to enable auto
    scale. So I will click on enable auto scale and then let’s give it a
    name. Let’s give it a name as any Rekha Auto. Alright, so my auto scaling property name is Erica Otto.
    The resource Group is a Eureka – 0 1 right. So now you have an option to Scale based on a metric
    which is based on some statistics. Like the CPUs is or the memory usage or anything.

    Right? And the other one is scaled to a specific instance count.

    So for example, whenever the traffic increases say you were one instance now like
    increased five instances. All right. So these are the two options
    will go with Scale based on a metric and scale out in scale in your instances based on Metric.

    All right. So let’s add a rule. Let’s add the rule as in what we want.
    What kind of metric do we want to? Monitor and scale according to right?
    So as you can see the time aggregation is not something we should
    be worried about. Okay guys, so these are all the metrics that you can actually monitor and scale according to you can scale according to the memory percentage.
    You can scale according to disc, uh dpq data in and out, right?

    So let’s for now keep it simple and scale according to CP
    percentage right time. I’m is not something you should be worried
    about and the operator. All right, so what should be the condition so should it
    be greater than or should it be greater than or equal to let’s keep it at
    greater than or equal to. So whenever the threshold is greater than a whenever the
    CPU Z will go greater than or equal to 70 for 10 minutes so
    you can set this as say two minutes, right? Okay. Let’s see.
    It says that it should be between 5 and 7 2000. Get let’s keep it at five increase count
    by. So let’s see what our options we have here. So
    you can increase by percentage. You can increase
    by count to as in if you were one. You can increase it to 10, right and you can decrease the
    count or you can decrease the person by as well. Alright, so when you are auto-scaling guys, you have to set two rules one
    is the rule to increase R. Obviously one rule is there to decrease so
    whenever the traffic goes down you have to decrease Reese
    your instances as well. So for now we are setting the increase rule so let’s
    set the increase count by option. So how many instances should increase I think one
    is a fair number and cooldown is something that
    is actually there when you are say you are asked you right
    now, right and then say you order scaled one minute back.
    And again the CPU usage goes up. So rather than going on and Filling up again. What you can do is you can wait for
    5 minutes and watch the metrics right because it doesn’t happen in a second that your CPU
    usage will go down because there are a lot of services which are actually running right so you can beat once your
    new server has been deployed. You can wait for the traffic to be transferred to
    that server as well. And then you can see the metrics go down right
    for that. We keep something called cool down minutes, right?
    So we have the default is for Five, let’s keep it at five only and
    now this is it guys. There’s nothing else to configure.
    Let’s click on ADD. Alright, so as you can see, this rule has been said, let’s add one more rule
    to decrease. So the CPU percentage is fine.
    The operator should be less than or less
    than right. So whenever the threshold is less than 50% Decrees count by one instance and let the cool down be this much.
    Alright. So again, the cooldown logic goes here as well.
    Say you decrease an instance. And again your CPU is
    still low because it takes time for your traffic could to
    get transferred to the server number. It has the keys down to right.
    So let’s keep the cooldown in it. So we’ll click on our now.
    All right, so we have added the auto

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