nextcloud/fpm/20/build

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#!/bin/bash
# define variables.
IMAGE_VARIANT=fpm
IMAGE_VERSION=20
UPSTREAM_IMAGE=nextcloud
UPSTREAM_IMAGE_TAG=${IMAGE_VERSION}-${IMAGE_VARIANT}
IMAGE=bkraul/nextcloud
# set username and password
# requires vars DOCKER_USER and DOCKER_PASS to be defined before calling.
# useful functions.
function docker_tag_exists() {
TOKEN=$(curl -s -H "Content-Type: application/json" -X POST -d '{"username": "'${DOCKER_USER}'", "password": "'${DOCKER_PASS}'"}' https://hub.docker.com/v2/users/login/ | jq -r .token)
curl --silent -f --head -lL https://hub.docker.com/v2/repositories/$1/tags/$2/ > /dev/null
}
# pull the parent image from docker hub.
docker pull ${UPSTREAM_IMAGE}:${UPSTREAM_IMAGE_TAG}
UPSTREAM_ID=$(docker image inspect --format='{{index .Id}}' ${UPSTREAM_IMAGE}:${UPSTREAM_IMAGE_TAG})
UPSTREAM_ID=${UPSTREAM_ID:7}
# get the version number.
NEXTCLOUD_VERSION=$(docker inspect ${UPSTREAM_IMAGE}:${UPSTREAM_IMAGE_TAG} | jq -r '.[].Config.Env[] | select(match("^NEXTCLOUD_VERSION"))')
NEXTCLOUD_VERSION=${NEXTCLOUD_VERSION:18}
IMAGE_TAG=${NEXTCLOUD_VERSION}-${IMAGE_VARIANT}
if docker_tag_exists ${IMAGE} ${IMAGE_TAG}; then
# nothing to do, the image already exists.
echo Image ${IMAGE}:${IMAGE_TAG} already exists.
else
# image doesn't exist we need build and push
echo Image ${IMAGE}:${IMAGE_TAG} does not exist.
echo "Building image(s)..."
docker build $1 \
-t ${IMAGE}:${UPSTREAM_IMAGE_TAG} \
-t ${IMAGE}:${IMAGE_TAG}
if [ $? == 0 ]; then
echo "Pushing image(s)..."
docker push ${IMAGE}:${IMAGE_TAG}
docker push ${IMAGE}:${UPSTREAM_IMAGE_TAG}
else
echo "The build operation failed."
echo "Please debug and try again."
fi
fi