Kubernetes

This repo contains the kustomize and helm resources that I have used to spin up resources in Kubernetes.

Contributing

Get an AWS account

https://aws.amazon.com/premiumsupport/knowledge-center/create-and-activate-aws-account/

Install Requirements

brew install awscli docker helm kubectl
brew tap argoproj/tap
brew install argoproj/tap/argocd

Install Kustomize:

curl https://github.com/kubernetes-sigs/kustomize/releases/download/kustomize%2Fv3.2.1/kustomize_kustomize.v3.2.1_darwin_amd64 > /usr/local/bin/kustomize

Note: This README is macOS specific, feel free to submit a PR with Linux instructions.

Deploy ArgoCD and Applications To The Prod Cluster

Ensure the cluster ID is set in applications/argocd/prod/cluster-secret-prod-dyhedral.yaml and clusters/prod/installed_applications/kustomization.yaml. You can find this in https://console.aws.amazon.com/eks/home, e.g.

<id>.gr7.us-east-1.eks.amazonaws.com

Deploy ArgoCD & Applications:

kustomize build applications/argocd/prod | kubectl apply -f -
kustomize build clusters/prod | kubectl apply -f -

Connect To ArgoCD:

kubectl port-forward svc/argocd-server -n argocd 9998:443
open localhost:9998

If Needed Register the Cluster

argocd cluster add arn:aws:eks:us-east-1:<id>:cluster/prod-dyhedral-eks

Destroy ArgoCD and Applications To The Prod Cluster

kustomize build applications/argocd/prod | kubectl delete -f -
kustomize build clusters/prod | kubectl delete -f -

What's In This Repo?

applications applications definitions / config clusters Maps application definitions to clusters

Troubleshooting

Pod Limit

If you can't seem to spin up pods you may be at the limit. You can check by running:

kubectl get node -o yaml | grep pods
      pods: "17" -> Number of pods running.
      pods: "17" -> Limit based off of node sizes.

If you hit this before you configure the autoscaler you may need to manually scale up in https://console.aws.amazon.com/ec2autoscaling

Admin Password

https://github.com/argoproj/argo-cd/blob/master/docs/faq.md#i-forgot-the-admin-password-how-do-i-reset-it

Delete All The Things

kubectl delete daemonsets,replicasets,services,deployments,pods,rc --all
cd ../terraform/plans/dyhedral
terraform destroy -target=module.eks-cluster
terraform plan && terraform apply

Up Next:

Deploy ingress & other apps.
Finalize & deploy masstestingplatform deployment.
Point DNS at new load balancer manually.

Reach Goals

Set up Route53 zone.
Set up extrenaldns.

adzuci / kubernetes