TIL - Add wait between Kubernetes deployments
When building Kubernetes deployment scripts for local testing, we often encounter scenarios where we have to wait for a database instance before deploying an application.
In order to add a wait between deployments, we can add a rollout status command like this -
# deploy a database using a deployment manifest file kubectl apply -f database-deployment.yaml # wait for the rollout before running the application kubectl rollout status deployment/database-deployment # deploy application using a deployment manifest file kubectl apply -f application-deployment.yaml
The output will be something like this -
Waiting for rollout to finish: 1 out of 1 new replicas have been updated... deployment "database-deployment" successfully rolled out deployment "application-deployment" successfully rolled out