Is there a standard pattern for doing flyway migrations on a kubernetes stack?

Question

There's these instructions from redhat but they're cooking their own flyway.

Here's what I've done:

I have a dockerfile that looks like this:

FROM  boxfuse/flyway
ADD ./flyway /flyway

#TODO: pass the username/password in from kubernetes
CMD ["-X", "-url=jdbc:mysql://db-service", "-schemas=myapp", "-user=root", "-password=P@ssw0rd", "migrate"]

And I build it with:

docker build -t flyway-migrate:3 . 

Where 3 is the number that the flyway migration is up to.

I then have a kubernetes job to run this script:

apiVersion: batch/v1
kind: Job
metadata:
  name: flyway-job
spec:
  template:
    metadata:
      labels:
        app: java-app
        tier: flyway
        track: stable
    spec:
      containers:
        - name: flyway
          image: "flyway-migrate:3"
          imagePullPolicy: IfNotPresent
      restartPolicy: Never

This works fine, but there's a few questions I have.

1. Whenever increment the flyway migration number, I have to rebuild the image, and then update the job, and delete the existing job and recreate it.
   • Is there a way to rerun jobs?
   • Is there a way to run the kubernetes job saying 'Use this image tag'.