Hello, all and welcome back in this video, we are going to cover Amazon cloudfront followed by a quick demo
Cloudfront is a fully managed fast CD N service that speeds up the distribution of static dynamic web or streaming content
to end users. Cloudfront delivers the content through a worldwide network of data centers called the edge locations
Cloudfront securely delivers data video application and API S to consumers globally with low latency
and high transfer speeds cloud front speeds up the distribution of the content by routing each user request to the edge location
that can best serve the content. Thus providing the lowest latency. Cloudfront uses the AWS backbone network
that dramatically reduces the number of network hops that users requests must pass through and helps improve performance
provide lower latency and high data transfer rate. Cloudfront is a good choice for the distribution of frequently accessed static data
that benefits from edge delivery like popular website, images, videos, media files or even software downloads
Cloudfront eliminates the expense and complexity of operating a network of cache servers
It also provides increased reliability and availability because it copies the objects in multiple edge locations around the world
Cloudfront keeps persistent connections with the origin servers so that the files can be fetched from the origin servers as quickly as
possible. Cloudfront offers the most advanced security capabilities including geo restriction or geo blocking field
level encryption and http S support cloudfront seamlessly integrates with Aws shield
Aws web application, firewall or W F and route 53 to protect against multiple types of attacks including
network and application layer DDOS attacks cloudfront edge locations or pops or point of present
Make sure that the popular content can be served as quickly as possible to the viewers
Cloudfront also has regional edge caches that help bring more content closer to the viewers
Even when the content is not popular enough to stay at the edge location to help improve performance
Regional edge caches are deployed globally closer to the viewers and are located between the origin servers and the edge locations
Regional edge caches support multiple edge locations and support a much larger cash size
Let's navigate to the cloudfront console cloudfront. As we discussed is a fully managed fast Cian service that speeds
up the distribution of static dynamic web or streaming content to the end users
We already have an S3 bucket configured for static website hosting and we are going to use the same as the origin
Let's create our first cloud front distribution. Let's configure the origin domain
origin domain can be either an S3 bucket or a static website
elastic load balancer, api gateway, a media store container or a media package channel
Let's select the S3 bucket configured for static website hosting for our origin origin access
On selection of the S3 bucket origin access is enabled. You can limit access to your origin to only authenticated requests
from cloudfront. And not directly AWS recommends using origin access control O AC in favor of
origin actions, identity O A I as it provides more features including support to S3 buckets in all Aws regions
we will have a separate demo for origin access identity. It detects that the S3 bucket has a static website hosting enabled
If you plan to use this distribution as a website, then Aws recommends to use the S3 website and point
Let's use the website and point origin path can be used if you want cloudfront to always request
content from a particular directory in the origin cloudfront will then append the directory path to the origin domain name
We will leave it blank for now. Let's leave the name as this
You can add custom headers which cloudfront can include in all the requests that it sends to the origin
It can be used to enforce checks that the request to the origin has originated from cloudfront and has not been accessed directly
Let's leave it blank for now. Cloudfront origin shield provides an additional layer in the cloudfront cashing infrastructure that
helps to minimize the origin's load, improve its availability and reduce its operating cost
Origin shield provides a centralized cashing layer that helps increase the cash hit ratio to reduce the load on your origin
We don't need the origin shield for this demo. Let's navigate to the additional settings
You can configure additional settings like connection time out, response, time out
retry count and keep alive time out. Let's keep them default for NAV
Let's configure the default cache behavior. Part patterns help define which part the cache behavior would apply to the
default star pattern is created. You can add multiple cas distribution patterns to take priority over the default path
Let's keep it default for now. Cloudfront can be configured to automatically compress files of certain types
and serve the compressed files. When the viewer requests include accept encoding in the request header with compressed
content, the downloads are much more faster because the files are smaller as well as less expensive as the cost of cloudfront data
transfer is based on the total amount of data served. Cloudfront can compress objects using G A and broadly compression
formats. Let's keep it to default. Yes, VVER configuration helps configure viewer protocol policy allowed
http methods and restrict viewer access. Viewer protocol policy applies for requests from viewer to cloudfront and can be configured
to define the allowed access protocol. It can be configured for http S only http and http S or
http redirected to http S for the allowed http methods. Cloudfront supports get head options
put post patch and delete to get add update, delete objects and to get the object headers
Remember cloudfront only caches responses to get and head requests and optionally for options requests
it does not cache responses to put post patch and delete request methods and these requests are directed to the origin
with the restrict waver access. We must use cloud friend signed URL S or signed cookies to access your content
Let's go through the cache key and origin request configuration. You can configure your cash policy to configure cashing compression
settings, etcetera. You can configure cash policy using either the legacy cache settings
using header keys, query string parameters and cookies. Aws recommends the new cash policy and origin request to be used
where you can select from the managed cash key policies or create your own
Let's select the cash optimized recommended for S3 policy. You can also configure response header policies which can be used
to add security headers allow cores and other configuration. We will configure a cash policy in our upcoming demos
Let's check on additional settings. You can enable smooth streaming to use with Microsoft I cloudfront supports field level encryption
which adds an additional layer of security to protect specific data throughout system processing
So that only certain applications can see it field level encryption can be used to securely upload user submitted
sensitive information. The sensitive information provided by the clients is encrypted at the edge closer to the user and
it remains encrypted throughout the entire application stag ensuring that only applications that need the data and
have the credentials to decrypt it are able to do so. Cloudfront
real-time logs help capture logs about the request that the distribution receives and has it delivered within seconds of cloudfront
receiving them real-time logs are delivered to the data stream of your choice in cannes data streams
Let's keep it to know for this demo. Let's go through the functions
Association. Cloudfront helps write your own code to customize how cloudfront distributions process http requests
and response. And this code runs very close to the users to minimize latency and without having to manage your own
servers or infrastructure. Cloudfront currently supports LAMBDA at edge and cloud front functions
They can be used to cater to multiple use cases such as adding headers
performing arts checks, et cetera. There are some key differences between LAMBDA edge and cloud front functions
Lambda supports both origin and we request response triggers. While cloud front functions only support
we were request response triggers. Yeah, lambda at H supports no dot J S and Python
While cloud friend functions only supports javascript. Lamb edge provides higher memory and packet size as compared to cloudfront
functions. Also, Lamb edge provides access to network file system and request body
While cloudfront functions do not, we will configure these functions in our upcoming demos
Cloudfront integrate seamlessly with web application firewall or V F V F helps protect against most common vulnerabilities
found in web applications, malicious actors, discovering application vulnerabilities or even block IP addresses from potential
threats. We do not need security protections for this demo. Let's navigate to the settings
Cloudfront has edge locations all over the world and the cost for each edge location varies and the price charged for serving the request
also varies. Cloudfront, edge locations are grouped into geographic regions and the regions have been grouped
into price classes. Price class are currently available either for all regions
only North America and Europe or North America Europe, Asia, Middle East and Africa
Price class can be selected to lower the cost, but this would come only at the expense of performance and higher latency
As cloudfront would serve requests only from the selected price class edge locations
Let's use the price class with all edge locations for the demo
You can configure alternate domain names as well. We don't need this for now
You can configure or associate custom certificates from AWS certificate manager or I M certificates as
cloudfront is global. The certificate must be in the US East, North Virginia region
Certificates in this region are then distributed to all the geographic locations configured for that distribution
You can choose the supported http versions. Let's keep it to http two far enough
you can configure default root object standard login IPV six support as well
Let's keep them default for NAV and let's keep the description blank
We have gone through most of the configuration. Let's go ahead and create our first cloudfront distribution
It takes around 15 to 20 minutes for the distribution to be enabled and deployed
Let's wait for it to be deployed. Let's go through the configurations of the distribution quickly
Let's go to the general tab cloudfront provides a distribution domain name which we will use to access the content
We have the A R N and the status settings cover the price class description graph
et cetera which we configured earlier. Let's go to the origin. We
have the S3 bucket configured as the origin cloud front distribution can have more than one origin within the configuration and
can reach different origins based on the requested path pattern. Cloudfront supports fail over using an origin group
An origin group includes two origins, a primary and a secondary origin to fail over two and a fail over criteria that
you can select and specify when you create an update a distribution
You can specify the origin group instead of a single origin. And cloud front will fail over from the primary origin to the secondary origin
under the fail over conditions. Chosen, we will demonstrate the origin groups in our upcoming demos
Let's go to the behaviors tab we have the default behavior defined and can add additional ones based on path patterns
with different viewer cache, key policies and functions. You can configure custom error pages
Let's go to the geographic restrictions, GEO restriction or GEO blocking can help allow or prevent users in selected countries from
accessing the content cloud run distribution can be configured to define a love a white list and deny a black list
of countries. Let's navigate to the invalidation requests. Cache invalidation requests help remove
a file from cloudfront edge caches before it expires to invalidate files
You can specify either the path for individual files or a path that ends with a star wild card
Remember, cash invalidation requests are not free and will cost you. And also there is a limit on the number of invalidation requests
you can execute. It's better to use file versioning instead of cache in validation
you can add tax to the distribution as well. Let's quickly navigate to the view metrics and you can check the distribution metrics in terms
of requests, data transfer error pages. You can also check on the lambda edge and cloud functions errors
Let's go back to our distribution. It's deployed and enabled NAV, let's copy the distribution domain name
and let's open it in the browser and we can see the S3 website now opening through cloud front
So that's it for the cloudfront introduction demo and its deployment using the S3 static website as an origin
I hope you like the demo. Thank you. All. All right. That was it
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