Deploy Chainlink nodes with K8s

Deploy Chainlink nodes with Kubernetes

Pre-req

1. This deployment was tested on Linode and loadbalancer service created for Linode Loadbalancer - make changes to code per your cloud provider.
2. You will need a running PostgreSQL database.
3. Export the required variables below for the deployment.

Variable	Description
API	base64 encoded API creds: echo -e "api_username\napi_password" | base64
PWD	base64 encoded keystore password: echo -e "keystore_pwd" | base64
ETHURL	Ethereum client websocket endpoint (from on-prem or provider infura, fiews, etc.) wss://eth.url
DBURL	Postgres connection string: postgresql://<db_username>:<db_password>@<db_url>:<db_port>/<db_name>

4. Use envsubst to populate required variables to K8s objects during deployment.

envsubst < k8s_object.yaml | kubectl apply -f -