I have two same task in a service.
this task has the httpd.
It has different IP address 56.XX.XX.12,56.XX.XX.15
I can access both address and get response. 56.XX.XX.12,56.XX.XX.15
Now I try to attach original domain name to this fargate though, from my understanding, I should access to LoadBalancer IP address and LoadBalancer select the target task automatically am I wrong?
If so where can I find the LoadBalancer IP?
From the AWS documentation:
The IP addresses for Classic Load Balancers and Application Load Balancers change over time. Avoid using this information to statically configure your applications to point to these IP addresses.
You should use the provided DNS name of the LoadBalancer instead.
Now I try to attach original domain name to this fargate though, from my understanding, I should access to LoadBalancer IP address and LoadBalancer select the target task automatically am I wrong?
AWS elastic/application load balancers do not have a static IP, they are associated with AWS DNS name to expose application.
From the AWS Docs.
use your DNS service, such as your domain registrar, to create a CNAME record to route queries to your load balancer. For more information, see the documentation for your DNS service.
CNAME records allow you to route traffic to other resources using the domain names. Refer to the docs for more information.
AWS Docs on linking Custom DNS with load balancers: https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/using-domain-names-with-elb.html#dns-associate-custom-elb
Related
I have set ALB with fargate, currently I can access to ALB with dns name like this
myapp-LoadB-FDEWFSOAQXD4-f18c75dd4249a10d.elb.ap-northeast-1.amazonaws.com
However it is said this DNS could be changed.
So I want to give this the Elastic IP
I have experienced connection EC2 and Elastic IP.
In Elasitc IP panel I can choose instance.
However, there is not ALB is listed.
How can I set Elastic IP to ALB ? or am I wrong basically?
Two options here, depending on what kind of direction you are heading:
If you do not like the default DNS name
You can create a DNS record that will point to your load balancer. This means that people would be able to surf to your website by using www.whitebear.com instead of myapp-LoadB-FDEWFSOAQXD4-f18c75dd4249a10d.elb.ap-northeast-1.amazonaws.com
See: Routing traffic to an ELB load balancer - Amazon Route 53
If you really want to attach an ElasticIp to a loadbalancer
There are some use cases where it is really needed to be able to surf to a loadbalancer using a fixed IP. You can achieve this by setting up a Global Accelerator on AWS.
With Global Accelerator, you are provided two global static public IPs that act as a fixed entry point to your application, improving availability.
More information can be found on the AWS Global Accelerator page
If you wish to create a 'friendly' name for an Application Load Balancer, you can create a CNAME record in your Domain and point it to the DNS Name of the Load Balancer.
If you wish to point the Apex of your domain (eg example.com), you can use an Alias in Amazon Route 53 to point to the Application Load Balancer. (It is not normally possible to point a Domain apex to a CNAME record, so the Alias capability of Route 53 will do it for you.)
See: Routing traffic to an ELB load balancer - Amazon Route 53
I have a DNS record created in AWS. For example let's say xyz.com. I have a service running in gcp exposed through a load balancer. Now I want to use aws dns to route traffic to GCP LB. SO I created an alias record in AWS as "demo.xyz.com" and pointed to the ip of gcp load balancer. Still it does not work. Am i missing anything here. Need your help.
Do not use a Route 53 ALIAS record. Use an A resource record specifying the IP address of the Google HTTP(S) Load Balancer.
how we can include the load balancer of Azure in AWS hosted zones?
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Referring to Amazon documentation: Choosing Between Alias and Non-Alias Records
You cannot use Azure Public IP DNS name as an alias here. It seems that only Amazon resources could be used as they can be recognized by Amazon platform.
Normally, you just need to directly use the IPv4 address of Azure load balancer. If the public IP is not static, you may try to create a CNAME record to its DNS name.
Is it possible to assign a static IP to an AWS load balancer without the need to move your NS records to Route 53?
I basically just want to create an A record from my domain to point to the ELB.
Elastic Load Balancer is a distributed system. It does not have a single public IP address. Instead, when you create an ELB, you are given a DNS name such as ExampleDomainELB-67854125.us-east-1.elb.amazonaws.com.
Amazon gives a facility to set up a DNS CNAME entry pointing for e.g. www.exampledomain.com to the ELB-supplied DNS name.
Also, ELB is directing to one of your instances. Hence, creating a static IP address for ELB will not be feasible.
So as a solution if you need to set your 'A' record from your domain pointing to your ELB in Route53 :
Select 'Yes' for Alias.
Set Alias target as your Load Balancer DNS.
Second way is similar by selecting the CNAME in Route53 and pointing the Alias Target to your ELB.
This should help.
AWS Load Balancer is a very generic term.
You currently have three options for load balancing in AWS:
Application Load Balancers (ALB)
Network Load Balancers (NLB)
Classic/Elastic Load Balancers (ELB)
Of those three only one, the Network Load Balancer can have a static IP address. It's listed in the reference below.
Support for static IP addresses for the load balancer. You can also assign one Elastic IP address per subnet enabled for the load balancer.
It is also possible to "glue" an NLB and ALB together to provide a static IP address and application load balancer functionality. In general you allow a lambda to populate an NLB Target group with your ALB info. It's outside the scope of this answer but the link is below.
If you're using Route53 you can create an A record Alias for your Load Balancer.
If you're not, you can use a CNAME.
References
https://docs.aws.amazon.com/elasticloadbalancing/latest/network/introduction.html
https://aws.amazon.com/blogs/networking-and-content-delivery/using-static-ip-addresses-for-application-load-balancers/
ELB manage the IP for you, it just gives you the DNS name. So you can't control the IP behind it.
If you need an A record than you need to use A record alias from Route53.
Without using Route 53, you can use CNAME instead of A record.
How can I publish a service in an AWS kubernetes cluster at a permanent IP address, so that I can add a DNS record? I define service xxx of type LoadBalancer in kubernetes, and kubectl describe service xxx gives me something like:
LoadBalancer Ingress: aae55ce563ca611e692c10a83aef9ddc-467886677.eu-west-1.elb.amazonaws.com
Port: <unset> 9004/TCP
Indeed, I can access the application on aae55ce563ca611e692c10a83aef9ddc-467886677.eu-west-1.elb.amazonaws.com:9004. How can I make this a permanent IP address?
As #error2007s said, you can't get a static IP for ELB. But if all you want is to assign a domain name to your ELB, then you can use a CNAME record pointing to aae55ce563ca611e692c10a83aef9ddc-467886677.eu-west-1.elb.amazonaws.com. If you're using Route53 you can also define an alias for better performance. Create a record set under your hosted zone, choose type A, select Yes under "Alias: ", and finally select your ELB from the dropdown box.
Both options are documented by Amazon:
http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/using-domain-names-with-elb.html
For AWS ELB you cannot make a permanent IP address as the IP address for AWS ELB is dynamic and changes frequently. So you have to use "aae55ce563ca611e692c10a83aef9ddc-467886677.eu-west-1.elb.amazonaws.com" as the Canonical name for your application. Also refer this question Amazon EC2 Elastic Load Balancer: Does its IP ever Change?