I have created 2 VMs (Webserver) in GCP on one region & TCP internal load balancer configured in the same region and created another vm on another region(southeast asia). Now, I am not able to ping load balancer IP but I am able to ping the webserver IP.
Webserver1---region :us-central ----10.128.0.5 &
Webserver2---region: us-central------10.128.0.6 &
Internal load balancer ip----------10.128.0.13
Test machine---region: southeast asia----10.148.0.5
I understand that by "pinging the load balancer " you mean you want to check the healt of the load balancer.However pinging a load balancer is not possible as it is a virtual part of a network and it is not a seperate device.however u can check the health of the load balancer using the instrucctions from the following docs.
https://cloud.google.com/load-balancing/docs/internal/setting-up-internal
hope that was helpful.
GCP internal load balancer by design handles traffic within the same region. As your test machine is in a different region(Southeast-asia), you cannot ping the internal load balancer which is present in the US-CENTRAL1 region.
Internal HTTP(S) Load Balancing distributes HTTP and HTTPS traffic to backends hosted on Compute Engine and Google Kubernetes Engine (GKE). The load balancer is accessible only in the chosen region of your Virtual Private Cloud (VPC) network on an internal IP address.
Kindly refer to the below link for:
Internal TCP/UDP Load Balancing overview :
https://cloud.google.com/load-balancing/docs/l7-internal
Troubleshooting Internal TCP/UDP Load Balancing
https://cloud.google.com/load-balancing/docs/internal/troubleshooting-ilb
Related
I created an Application Load Balancer in AWS.
How can I assign an Elastic IP address to the application load balancer? I didn't find any IP address in the load balancer description.
An Application Load Balancer cannot be assigned an Elastic IP address (static IP address).
However, a Network Load Balancer can be assigned one Elastic IP address for each Availability Zone it uses.
If you do not wish to use a Network Load Balancer, you can combine the two by putting the Network Load Balancer in front of the Application Load Balancer:
See: Using static IP addresses for Application Load Balancers | Networking & Content Delivery
You can now get global static IPs for your Application Load Balancer directly from the Load Balancer Management Console, either in the creation wizard or in the Integrated services tab. See this blog post.
Another option is to use AWS Global Accelerator:
AWS Global Accelerator
However, it's probably going to be more expensive than using NLB - ALB architecture.
I have created one internal load balancer and application deployed on that internal network. For testing purpose I have created one instance in same VPC called "instance1". I am able to curl to load balancer from this instance1 but I am not able to ping this internal load balancer from outside of VPC.
My future plan is to deploy UI on external load balancer and call internal load balancer from there.
Query is, as I am not able to connect to internal load balancer from outside how my UI instance will be able to do the same.
Internal Loadbalancers are for internal connections only. For reaching out your load balancer from a different network, you can use VPC Peering (connect two GCP network) or use Interconnect products (VPN or Direct connection) for secured/dedicated intranet access.
If your application is intended to be accessible from the outside world (the internet), you can use an external load balancer (Layer 4 or Layer 7 if your application is HTTP based).
I have a load balancer created in my VPC with two subnets. Now I want to open a firewall rule from within my company intranet. I have no control over this firewall. But to open a rule on the firewall - the firewall team is accepting only ip addresses and not the DNS names.
But since the IP address of the load balancer keeps changing I can't give it to the firewall team. That's where I am stuck.
How can I open a firewall rule to an AWS load balancer from within my intranet?
You are correct that an Application Load Balancer does not provide static IP addresses.
You might be able to change to a Network Load Balancer:
Elastic Load Balancing creates a network interface for each Availability Zone you enable. Each load balancer node in the Availability Zone uses this network interface to get a static IP address. When you create an Internet-facing load balancer, you can optionally associate one Elastic IP address per subnet.
It is also possible to put a Network Load Balancer in front of an Application Load Balancer to gain the benefits of both.
See: Using static IP addresses for Application Load Balancers | AWS Networking & Content Delivery Blog
We are in process of setting up an infrastructure where we have several services hosted and we have separate Internal Load Balancer for each service.
If we have global Load balancer in front of internal load balancer. Can someone please help and tell me how the various services can communicate with each other. Would it be via global HTTP LB ? Is this the right approach. Would really appreciate your help.
I expect your "global load balancer" is set up with a global external IP and so reachable by external clients via the internet.
If you use an internal load balancer to further distribute the load to instances within your VPC inside the GCP project, there is no need to call the external IP to communicate with other services inside your GCP project.
You can directly execute calls against the IP address of the internal load balancer.
Note you can either let GCP allocate any free IP address within your VPC, or you can select the IP address within the address range of the selected VPC.
See also the following documentation about internal load balancers:
https://cloud.google.com/compute/docs/load-balancing/internal/
You can't reuse the same Instance Group as backend for HTTP(S) Load Balancing and for an Internal Load Balancer.
What you can do is use HTTP(s) Load Balancing for both internal and external clients.
Otherwise, you can run a HTTP proxy service in the HTTP(s) Load Balancing backends, and forward the requests to the internal load balanced IP.
Majority of my servers are on AWS for which I am using classic load balancer. I have few instances running on GCP too. How to add those GCP instances to AWS load balancer?
You cannot with the Classic Load Balancer. You can with the new Network Load Balancer provided that your Google instances are reachable via public IP addresses.
[EDIT after #michael's comment]
I have not actually tested NLB with Google instances. From the Amazon documentation you can load balance Amazon resources with on premises resources using IP addresses. I am assuming that this means that Google instances would be supported if they have public IP address.
Relevant text:
Load Balancing using IP addresses as Targets
You can load balance any application hosted in AWS or on-premises using IP addresses of the application backends as targets. This allows load balancing to an application backend hosted on any IP address and any interface on an instance. Each application hosted on the same instance can have an associated security group and use the same port. You can also use IP addresses as targets to load balance applications hosted in on-premises locations (over a Direct Connect connection) and EC2-Classic (using ClassicLink). The ability to load balance across AWS and on-prem resources helps you migrate-to-cloud, burst-to-cloud or failover-to-cloud.
Load Balancing using IP addresses as Targets