argocd's Introduction

argocd

This is test example with k8s

Kubernetes

Kubernetes strategy "Recreate" or "RollingUpdates" Deployment

# kubectl run nginx-deploy --image=nginx:1.16 replicas=1
# kubectl rolling-update nginx-deploy --image=nginx:1.17
# kubectl set image deployment nginx-deploy nginx-container=nginx:1.17
# kubectl rollout status deployment nginx-deploy
# kubectl rollout history deployment nginx-deploy
# kubectl rollout history deployment nginx-deploy --revision 1
# kubectl annotate deployment nginx-deploy kubernetes.io/change-cause="image updated to 1.17"
# kubectl rollout history deployment nginx-deploy
# kubectl set image deployment nginx-deploy nginx-container=nginx:1.17 --record
# kubectl describe deployment nginx-deploy |less
# kubectl rollout undo deployment nginx-deploy --to-revision=1
# kubectl set image deployment nginx-deploy nginx-container=nginx:latest
# kubectl rollout pause deployment nginx-deploy
# kubectl rollout resume deployment nginx-deploy

Persistent Volumes and Claims in Kubernetes

1. Create a PV
2. Create a PVC
3. POD thatr use PVC -- > PV
4. Dynamic Provision Storage Class

ReclaimPolicy
1. Retain
2. Recycle
3. Delete

Access Mode:
1. RWO 
2. RWM
3. RO

# kubectl get pv,pvc,pod
# kubectl describe pv pv-volume
# kubectl describe pvc pvc-claim
# kubectl exec pod-busybox-pvc ls
# kubectl exec pod-busybox-pvc ls mydata
# kubectl exec pod-busybox-pvc touch /mydata/hello
# kubectl exec pod-busybox-pvc touch /mydata/hello2
# kubectl exec pod-busybox-pvc ls /mydata

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