Managing the Email Signature Server in Kubernetes with kubectl

 

Prerequisites

Get credentials for the cluster

az aks get-credentials --name templafyemailsignatureserver --resource-group <resource group>

Set kubectl context to the correct namespace

kubectl config set-context $(kubectl config current-context) --namespace=templafy-emailsignature

 

Actions

Update to a new Email Signature Server image:

kubectl set image deployment/email-signature-server-deployment email-signature-server=templafyprod.azurecr.io/email-signature-server:x.x.x.x --record

Rolling restart of all pods:

kubectl rollout restart deployment email-signature-server-deployment

 

Monitoring

Check update rollout:

kubectl rollout status deployment/email-signature-server-deployment --watch

Check rollout status:

kubectl rollout status deployment/email-signature-server-deployment

Check pods status:

kubectl get pods --watch

Check the deployed values on pods:

kubectl describe pods

Check pod resource usage:

kubectl top pod

Check pods across namespaces:

kubectl get pods --all-namespaces

Check what happened in the deployment:

kubectl describe deployments

Check the deployment history:

kubectl rollout history deployment

Get logs from all pods

kubectl logs -f -lcomponent=emailsignatureserver --all-containers=true

 

Rollback

Rollback to previous deployment:

kubectl rollout undo deployment/email-signature-server-deployment

1. Check the details of a deployment in the history, including environment variables:

kubectl rollout history deployment/email-signature-server-deployment --revision<$DEPLOYMENT>9

2. Rollback to that revision

kubectl rollout undo deployment/email-signature-server-deployment --to-revision=⁠<$DEPLOYMENT>

 

Dashboard

Check the status on the dashboard:

az aks browse --resource-group=<resource group name> --name templafyemailsignatureserver