Consider microk8s or similar instead of docker-compose

[yorickdowne]

• Use Kompose

• Deploy as-is without HA to start, then work on HA pieces

• [x] Single-node Rancher deployed

• [x] Single-node K3s cluster deployed

• [ ] docker-compose yaml converted

• [ ] Changed secret files to kubernetes secret stores

• [ ] Helm chart deployed

• [ ] Tests successful - eth1 syncs, PGSQL is up, chainlink node web page works

• [ ] Single price feed deployed

[yorickdowne]

On hold, but consider microk8s.io and its HA deployment, or docker swarm mode, for the chainlink node only. This may improve secrets management.