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I was going through this tutorial http://dockerlabs.collabnix.com/kubernetes/beginners/Install-and-configure-a-multi-master-Kubernetes-cluster-with-kubeadm.html
but facing issue while running HAPROXY even few things are not clear.
I can install 1 Master and n number of nodes but facing challenge for 3 master 3 nodes.
Can some one help me ?
For High Availability K8s Control Plane Implementation, you can refer to this documentation: https://kubernetes.io/docs/tasks/administer-cluster/highly-available-master/
If you are in the cloud, There are many libraries that can help you implement it using only a setting toggle.
Multi-Cloud : Kops
AWS Only: AWS EKS (Manage Services, highly available by default)
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Would it be possible to expose a Kubernetes cluster to the work without a cloud “load balancer” e.g. from AWS Network Load Balancer?
I know MetalLB for bare-metal Kubernetes installation, but aren't sure if this may be a solution? Any advice would be appreciated.
Yes and as you said MetalLB would be one way. You can use it internally across your cluster using ARP or set to a static route. Was there anything in particular keeping you from going with MetalLB?
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Closed 1 year ago.
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Use Case: I will have a separate ec2 instance for each client - all of the instances will host identical web apps and db (at the moment, I'm keeping the db in the ec2 instance and not breaking it out).
If I am trying to provide security for each client, would you recommend creating a separate VPC for each ec2 instance, even if they are in the same region? Or would that be overkill?
Thanks! So far, I have not been able to find this on multiple google searches.
See Isolating Resources in a Multi-Tenant Environment from AWS.
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I have going through documentation https://aws.amazon.com/blogs/containers/fluent-bit-for-amazon-eks-on-aws-fargate-is-here/ and implementing it. But looks like it is not working.
I have created IAM policy & attached to Pod execution (cluster default iam role).
created those configmap in aws-obervability namespace.
Still I'm not able to see any log group created in AWS.
Could you please help where I'm missing.
Had similar issue using latest C plugin (cloudwatch_logs) adding either log_stream_prefix or log_stream_name solved it.
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Closed 6 years ago.
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I need to add some capacity to a Spark cluster and seem to have run into the upper limit w/re which instance types I can use without starting a VPC.
The code I've inherited to start said cluster is a bit of Groovy spaghetti and doesn't seem to be lending itself to incorporating a VPC too readily. Hence the need to work w/out.
Are you sure it's not just the instance limit on the account that you can easily request Amazon to raise?
According to the documentation, these are the only instance types restricted to a VPC at this time:
C4
M4
T2
X1
All other instance types should still be available in EC2 Classic.
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I was asked in an interview that . Consider a Scenario where you have instances in different AWS regions what is the best way to communicate by SSH port 22.
He said let us say that they are RDS instances
I couldn't find the answer anywhere please Answer my question
Unless I am not understanding your questions, it could have been a trick question as you can't communicate directly with RDS instances via SSH. They are managed for you and you don't have direct access to them.