k8s registry creds

registry_creds.sh

#!/bin/bash

AUTH="$DOCKER_USERNAME:$DOCKER_PASSWORD"
AUTH_B64=$(echo -n $AUTH | base64 -w 0)

DOCKERCFG="{
	\"auths\": {
		\"$DOCKER_REGISTRY\": {
			\"auth\": \"$AUTH_B64\"
		}
	}
}
"
DOCKERCFG_B64=`echo -n $DOCKERCFG | base64 -w 0`

cat > registry-creds.yaml << EOF
apiVersion: v1
kind: Secret
metadata:
  name: registry-creds
data:
  .dockerconfigjson: ${DOCKERCFG_B64}
type: kubernetes.io/dockerconfigjson
EOF