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Ex-Man United star sends major warning to Arsenal & Chelsea - Duration: 2:59.
Ryan Giggs has sent a big warning to Arsenal and Chelsea in the battle for a top-four spot come May
Prior to Christmas it looked like it would be a straight shootout between both sides for the final Champions League position, yet Manchester United's stunning form under caretaker boss Ole Gunnar Solskjaer has given them hope with 16 games left to play
The Red Devils can move ahead of Arsenal and into fifth on Saturday evening providing they beat Brighton and the Gunners drop points against Chelsea, while they could also close in on Maurizio Sarri's side if they don't collect all three points at the Emirates
Looking in a battle just to finish in the top six not so long ago, Giggs believes his side now have the momentum to secure a Champions League place after winning six games on the spin in all competitions
"I believe the top four is on for Manchester United," he told Sky Sports. "Momentum is key
"When you get to this part of the season and have a bit of momentum it is hard to stop
"Chelsea are at Arsenal on Saturday, and we fancy ourselves against Brighton, so we could get even closer to Chelsea
"If you look back a month ago it was not even on the table really so to turn it around in such a short space of time, with the games we have coming up, top four is definitely the target
"Rather than looking over our shoulders we are looking up and it is great to see
" Arsenal's transfer plans for January With the January transfer window in full swing, football
london want to hear from Arsenal fans on the business they want to see from the club in the first month of 2019 and their view on the season so far under Unai Emery
Take part by completing our survey below or click here if you cannot see the form
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"AND-J Talks" 🙊 What the hell is this "Cloud"? ☁️❓ - Duration: 20:39.
OK. So, let's start.
Today briefly I wanted to tell you about how Cloud works.
Very basic concepts. What a lot of people are missing actually when thinking of Cloud.
So, let me start.
Again, very quickly about me. 12 years in the same company.
12 years working with Linux and Virtualization which are actually bedrock of the whole Cloud concept.
And around 4 years ago I moved purely to Cloud
working with OpenStack, Google Cloud and mostly AWS Amazon Web Services.
As you can see I'm Linux certified which was very handy when I moved to Cloud.
because like I said it's one of the building blocks of every Cloud.
And I'm something called "all 5 AWS certified"
which was true till the end of the past year I believe
when AWS introduced 3 additional certificates that I need to get.
But I will be there at some point.
Next 25 minutes. Questions at the end, please. And we will talk about 3 things.
First one is Cloud versus Virtualization.
How is it similar. How is it different.
Another thing will be Cloud Building Blocks
The really basic blocks based on AWS but they are really applicable to all other Cloud providers.
And the third one will be Cloud Applications
So, let's start with Cloud versus Virtualization.
Many technical people that I know, they think they understand what Cloud is.
In their minds very often, and surprise surprise it's wrong, Cloud is Virtualization.
Which is obviously incorrect.
Virtualization to Cloud is what brain is to the human being.
It's an essential block, yes, it is, but the Cloud or Human Being is much more than that.
Here, I'm not trying to say that women do not have a brain, obviously.
That's me just trying to say that it's much more to human than just a brain.
If aliens would land today here and they would ask you "describe me a human".
And you would just describe them a brain and said like "now put it in the biological body".
That doesn't describe the whole complexity of humanity, correct?
So, Virtualization to Cloud is what brain is to a human being.
It's a heart of it. It's an essence. But it's much more than that.
When we are talking about Cloud, I think it's good to have some definitions.
This is one of my favorite definitions of what the Cloud is, by Tytus Kurek, he is a Ph.D. in Cloud, my close friend.
Let me just read it quickly.
It is completely transparent to users.
It delivers a value to users in a form of services.
Its storage and computing resources are infinite from users' perspective.
It is geographically distributed.
It is highly available.
It leverages computer network technologies.
It leverages virtualization and clustering technologies.
It's easily scalable.
It operates on the basis of distributed computing paradigm.
It implements "pay-as-you-go" billing.
It is multi-tenant.
And the last which I don't fully agree with: It runs on the commodity hardware.
Yes to be fair, Tytus is right, 99% of Cloud providers do run on commodity hardware but it's not a must-have.
When we are talking about Cloud and all these concepts it's just good
to quickly talk about servers, virtualization, and containerization.
In the old-school approach, you had a server.
If you don't know what server is just imagine your laptop, slightly bigger, put it in a separate room.
That's a server.
Take this server, install any operating system on it. Linux, Windows, Mac OS whatever you want.
And then you install your applications like Microsoft Excel, Microsoft Word.
But what happens if you want to have 10 exact same versions of Microsoft Word on a single server.
It's impossible. They would collide with each other.
So, if you want to have 10 separate Microsoft Word versions, what you need to do is you need to have 10 servers.
This is basically a waste of resources.
So, that's why Virtualization had been invited.
So, Virtualization: On the same server, you install the same operating system
but then on top of it instead of installing just app, you install something called hypervisor.
Hypervisor basically emulates a hardware.
It pretends that it's a server.
And you have something called Virtual Machine.
Virtual Machine, very important thing, in most of the cases, like in Matrix,
it's not even aware that's it a virtual machine.
It really thinks that it's a real server.
On Virtual Machine like that you install again operating system and your application.
These Virtual Machines don't touch each other.
So you can have your 10 "Word" application on 10 separate Virtual Machines running on the single server.
That's was definitely a step forward.
But there is the next step in this evolution.
Someone looked at this drawing, probably,
and noticed that there is plenty of Operating Systems, plenty of duplicates here.
The next was containerization.
Very similar concept.
You take the server. Your install Operating System, like Linux.
Then you install container engine on it like Docker.
And then you install containers with separate apps.
That's much more cost effective.
The one downside of containers versus virtualization
is that this can be Linux, this can be Mac OS, this can be Windows.
Here, these all application needs to run on this Operating System
so they need to be compatible with for example Linux.
And BTW, if you just take this server and you put it in someone else's data center,
this doesn't make you Cloud.
This just means that your server is in someone else's data center. That's it.
If you take your VMs and put it on someone else's servers in someone else's data center,
it doesn't make in the Cloud.
It just makes your VMs run on someone else's data center. The same with containers.
So, these are the basic building blocks of the infrastructure of the Cloud.
Now, let's look at building blocks that developers are using.
We will look amazon example but this completely applicable to Google Cloud, Alibaba or Microsoft Azure.
These are the big players out there.
Availability Zone.
Availability Zone, simply saying, is just a data center.
Whenever you see in the movie, datacenter, plenty of servers,
something beeping, something blinking, that's exactly how datacenters look.
Hundreds of hundreds of servers which runs hundreds of hundreds of VMs and containers.
Now, a collection of data centers, called this Availability Zone, AZ for short,
that are geographically close, nearby, like 100km away from each other is called Region.
Region consists of minimum 2 Availability Zones. Just for High Availability.
Usually from 3. Sometimes from 4 or even more.
And these data centers, theses Availability Zones are connected with very, very, very fast Internet connections.
They act like a single organism.
When you look at AWS services, they are living on different levels.
Some of the things like Virtual Machines, they live on the Availability Zone level.
When I would be deploying Virtual Machine, I would say
"give me this Virtual Machine in Region Frankfurt in AZ2". I need to specify that.
But there are services like Load Balancer where you just specify like
"give me Load Balancer Region Frankfurt" and then the magic happens.
So, these 3 Zones could go down. I don't know, bomb, whatever.
And my Load Balancer would still be up because AWS assure me that it will run in the Region.
Now, how does it look from the world perspective? Where is the Cloud market actually growing?
When you look at this, the 4 most important Cloud markets are:
US and Canada, obviously.
EU and "friends".
China and Taiwan. And India.
And obviously, the rest of the world has plenty of regions there. This is actually a number of regions.
But they are not driving this market.
This market is driven partially by politics.
For example, the European Union
has a law saying that if you have very fragile, very important data, they never can leave European soil.
That's why the datacenters, Availability Zones, and Regions needs to be located here.
But it's not only EU. China, India and especially the US has really similar laws.
That's why these regions are located in these places.
Now, let's talk about very basic building blocks.
Whenever you hear something called EC2, that's basically managing of VMs that we are talking about.
VMs in Cloud are called, for strange reasons, instances.
Instance equals VM. That's it.
And the cool thing with VM is that if you turn it off,
and you keep it as a file somewhere,
it becomes an image and from this image, you can have multiple copies of the same VM.
And actually, when you are creating a new VM
or Instance in AWS, you are asked what image you want to use.
So, you can obviously select like a default image that's provided by Amazon with "naked" Linux
Or you can have your own image with your application preloaded there.
Whenever you hear ECS that's exactly the same concept but with Docker containers, not with Virtual Machines.
Next one is ELB and Auto Scaling. So, ELB is just Elastic Load Balancer.
If you are not familiar with Load Balancer concept, that's very simple.
You have one input, usually with one name like www.google.com.
You just go there and then traffic, you don't see it as a user,
is forwarded to some other instances or containers that are there below.
But with Cloud, you get one more really interesting feature,
connected with Load Balancer. It's called autoscaling.
Based on some metrics, in this case, let's assume, based on the amount of traffic coming to the load balancer,
you can add or remove more instances based on your image that you prepared.
This is pretty cool and this is very cost effective.
Storage. There are a couple of different storage solutions that you have in AWS.
First one is RDS. It's Relational Database Services.
So, basically, this is Oracle, PostgreSQL, MS SQL, MySQL as a Service.
Traditionally, you just install it, you manage it. In AWS you just say
"give me Oracle version something with 16 gigs of memory" and it just happens automagically.
And it's actually highly available. It's spread across Availability Zones in a single Region.
But there is a next step. Aurora.
This only works with MySQL and PostgreSQL because they are Open Source.
So, AWS modified the code of these databases so they work better with Cloud.
They are faster, they are cheaper, they scale out. This is amazing technology.
There is also a mother or father of all NoSQL databases.
This one of the first NoSQL databases that were out there.
A lot of other NoSQL databases were basically a clone of DynamoDB
which is the very famous NoSQL database that Amazon offers as a service.
Another very famous example: S3.
S3 is a file storage. On the left you see databases. On the right, you see the storage.
I'm not sure if you heard about a solution like DropBox.
The only thing that DropBox did and still does, they just created UI for average users to upload files to S3.
They don't own any of their own servers. Everything is just Amazon. This is just a front-end.
This is just their whole business model.
The difference between these two.
These, obviously, databases are very fast, but they cost money.
With S3, it's inexpensive, it's very durable but it's very slow.
Whenever you are designing a new solution, that's the choice that you need to make, what's your storage.
My personal favorite: CloudFormation.
This helps with DevOps a lot.
One of the basis of DevOps is that developer needs to develop code
on the environment that's identical to the productional environment.
Traditionally it's very hard. You develop on your laptop.
Then you ship it to a server that's completely different and something breaks.
Because infrastructure is different.
With CloudFormation, which is actually a language, declarative language,
programing language you could call it, you can define your infrastructure in AWS.
It looks like that. I mean, it's a bit more complicated but you get the picture.
Create 2 instances. Make them large. Use my image.
Add to this Load Balancer with this DNS name and configure my network.
So, you just save this file, you execute it against AWS and AWS creates infrastructure for you.
And the cool thing? You can execute it the second time. You can execute it the third time.
And you will exact the same environment.
The developer can take a file like that, that production is configured with and they can
have an exact same environment to do their testing or development.
Another interesting thing has happened with this one.
In old-school approach, if I would need to add another server, I would need to buy it, take it,
move it to the server room, install it, connect cables etc. etc. and just give it to developers.
Today there is no need for that. Today it's called Infrastructure as a Code.
So, developers can manage their infrastructure on their own.
Because it looks similar to any other programming languages.
You can manage it like Java or Python application. You put in the source control. Someone needs to review it.
You don't do manual changes. You go through the whole development process.
So, this is very critical for DevOps.
And that's about the most important building blocks.
Now, let's try to put some application in the Cloud.
Let's start with "Word" application. We all know how it works.
It's just a Windows application. You install it. Then you open it. Edit some file. Save it. Simple.
Let's now assume that you want to put it in the Cloud. What do you do?
You just take an instance from the Windows image. You install there "Word" and that's what you have.
You can save it as your preconfigured image for later. You can, you don't have to.
Then you just connect to it using external IP address or external name.
You log in there with Remote Desktop or something like that. You edit your file and you save it. That's cool.
But AWS doesn't promise you, they do not commit that the instance will be alive.
They actually say, that at any moment of time the instance may go away.
They do not guaranty that it will be alive.
Of course, Availability Zone, one of the datacenters may go down completely. That happens as well.
So, what do you do?
You just build another one using your image in the other Availability Zone.
So, you log in to the first one. Edit some files. For some reason it's unavailable.
So, you log in to the other one. You wanna continue editing your files and what happens?
Nothing happens. Files are not there.
Files are stored locally so they are gone. They are inaccessible for you.
So, you need to introduce another concept. Very basic again: Shared Storage.
You make your instances, actually "Word" application, not to write files locally
but to save them to an S3 bucket or something like that.
That's cool. That's highly available. But what if you have, I don't know, hundred users?
Just what, create more of these?
And you expect users to remember all of these different names that they have to log in?
You expect them that if this goes down they need to know that they should have tried the other application?
This is not the Cloud experience. So, what you usually do, you put a Load Balancer in front of it.
Users have single point where they go and then traffic is distributed.
And actually, you can setup autoscaling. So, the more traffic coming in, more users trying to come in,
you spin up more instances with your "Word" application.
But, here is the problem:
Load Balancers are mostly about web traffic.
Microsoft "Word" is not a web-based application. You cannot access it from your browser.
It's just a windows app. So, this will not work. The end of the story.
But let's assume for a second that it does work. OK.
It does work and two users log in at the same time to different instances
and they are trying to edit the same file. What happens? Microsoft "Word" doesn't support it as well.
Is there a Cloud solution for this one? There isn't.
So, the only solution is to take this "Word" application and rewrite it
in a way that it's web-based and that it allows you to edit the same file at the same time.
And funny thing? This is exactly what Microsoft did with "Word".
There is a "Word Online" which is rewritten to be web-based
and you can edit the same files by multiple people. That was a necessity.
This is a very important thing to remember. You cannot take any application and just move it to the Cloud.
It's not like that. The application needs to be modified or written to work in the Cloud.
That's when you are getting real Cloud experience. I will try to give you some analogy.
Let's imagine that my dream since I was 5 was to be in jail.
OK. Strange dream, but let's assume one.
So, I would walk out from this room, go to the closest jail,
knock to the doors, someone would open the door, I would just take a step inside
and I'm in jail.
Really? That's the "in jail" experience?
The fact that I am in the building called "jail" doesn't make me actually to be in jail.
It's much, much, much more than that.
The same with the application. If you move some application to Cloud it doesn't make it in the Cloud.
I know it sounds funny but it's true.
So, just to sum up.
Cloud is much more than just Virtualization. Yes, Virtualization is an essential and critical part of it
but it's much, much, much more than that.
Second. There are tens if not hundreds of AWS Building Blocks called AWS services
but the most essential one are: EC2 that are managing your instances, VMs.
ECS that are managing your containers.
ELB that is basically your Load Balancer. S3 for storing your files.
RDS, Aurora, DynamoDB to be a DB as a service.
Autoscaling to add or remove machines per some metrics.
And CloudFormation that allows you to manage Infrastructure as a Code.
Third thing. Apps need to be cloud-written. You cannot take any app and put it there. It doesn't work like that.
Two next steps for you if you are interested.
One thing that we haven't even started to talk about is called "Serverless".
Imagine that you write your application
and you don't need any server, you don't need any virtual machine, you don't need any container.
You just put it in the Cloud and it works. That's called Lambda. Google it. It's really cool.
Second thing. I would really like you to encourage you to get AWS certified.
You don't have to go with this "All 5", of course. But there is a very entry level, very simple
exam that you can take. It's called "Cloud Practitioner". You can learn it, I don't know, in 20 hours.
It's not very technical. And the cool thing about this one is that when you get it you get a really cool sticker.
I have more of that on my laptop if you are interested.
Yes, so that's all I wanted to tell you about Cloud. I hope you enjoyed it and ...
… questions?
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ГОТОВКА ЧЕЛЛЕНДЖ | Жареный еж и суши для котика | Готовлю смешную еду в игре ТОКА КИТЧЕН - Duration: 16:32.
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How to add a voice search in your website - Duration: 7:56.
hello everyone this is Colleen from black box tech in today's episode I will
show you how to add a voice search in your website within just few minutes so
without further ado let's get started to add a voice search in our application
I will first go to our app component HTML I will add a form tag and in action
I will add Google search warrant
next I will add an ID
and for method I will add gate
to access it from our class I will add a reference to it
inside this from I will add another deep as an rapper
now I will add a hidden input which will hold the return data from such
and also add a reference to access this element as well
I will added name attribute cue so during from submit it will add which
search URL including such phrase
I've let another deep which will hold the mic icon
now I will add a click event and bind with a function called voice Church
now let's run in deserve to check the way
for this icon I have borrowed the CSIs from Cote pin you can get this code from
the URL added in the video description now let's add the interaction by going
into our app component yes I will add the page title first as it is carrying
blank
so these two elements reference can be accessed through a view child decorator
in the class let's add that decorator with two different reference
now I will add the function which will trigger on click of mic icon and I'm
giving a name to voice search I have created a snippet which will
auto-generate the function if you want to know how to do it is what my video
about this code snippet
we need to declare a war for the webkit speech recognition here and type script
it will not complain again
now let's go through the function in the first line I'm checking if we've keyed
speech recognition is available in the browser if not it will throw an error
now I will create an instance and store in the constant I a make my making this
continuous property to false so it will wait for the whole sentence to be
complete before return the result and also interim to fall so it will not
alter takes before returning a result and I am setting us English as language
but you can create a select box which will hold all the available language and
pass whatever is selected from it now I am triggering the start I am adding the
two Dom element reference in stay inside this constant
in the success callback I am storing the resulted string in the hidden input
value then I am stopping the voice recognition and submitting the form with
the value if there is an error I am just logged the error and stop the execution
and I'm also logging if the browser do not support this voice recognition
feature now test this to search something in Google angular Universal
tutorial videos youtube black box tick
and that's it for today I hope you liked it don't forget to share like and
subscribe and also to probably bring the wealth so you can get notified about my
next video thanks
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