Create docker-registry secret file

create-docker-credentials.sh

#!/bin/sh

set -e

if [ -n "${DEBUG}" ]; then
  set -x
fi

for var in "DOCKER_USERNAME" "DOCKER_PASSWORD" "DOCKER_EMAIL"; do
    if [ -z "${!var}" ]; then
        echo "Missing '${var}' variable!"
        exit 1
    fi
done

if [ -z "${DOCKER_SERVER}" ]; then
  DOCKER_SERVER=https://hub.docker.com/v2/
fi

if [ -z "${SECRET_NAME}" ]; then
  SECRET_NAME=registry-credentials
fi

echo
echo "-> Generating docker secret:"
echo

kubectl create secret docker-registry \
  "${SECRET_NAME}" \
  --docker-server="${DOCKER_SERVER}" \
  --docker-username="${DOCKER_USERNAME}" \
  --docker-password="${DOCKER_PASSWORD}" \
  --docker-email="${DOCKER_EMAIL}" \
  -o yaml \
  --dry-run

echo
echo "-> Secret generated!"
echo