netbox-docker/build-latest.sh
Christian Mäder d0ebb34432 Refactor to multistage builds
This commit introduces a huge change in the build process.

What changed:

- Dockerfile.ldap was integrated into Dockerfile as a seperate
  [build stage][multistage-build].
- All the build scripts were refactored according to this.
- The `docker-compose.yml` file was adjusted likewise.
- The main build script, `/build.sh`, now always builds all
  targets (formerly called variants).
- The minimal requirements for Docker and docker-compose
  have increased.
- The build on hub.docker.com must be adjusted.

This change should also fix #156 permanently.

[multistage-build]: https://docs.docker.com/develop/develop-images/multistage-build/
2019-10-15 00:34:15 +02:00

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#!/bin/bash
# Builds the latest released version
echo "▶️ $0 $*"
###
# Checking for the presence of GITHUB_OAUTH_CLIENT_ID
# and GITHUB_OAUTH_CLIENT_SECRET
###
if [ -n "${GITHUB_OAUTH_CLIENT_ID}" ] && [ -n "${GITHUB_OAUTH_CLIENT_SECRET}" ]; then
echo "🗝 Performing authenticated Github API calls."
GITHUB_OAUTH_PARAMS="client_id=${GITHUB_OAUTH_CLIENT_ID}&client_secret=${GITHUB_OAUTH_CLIENT_SECRET}"
else
echo "🕶 Performing unauthenticated Github API calls. This might result in lower Github rate limits!"
GITHUB_OAUTH_PARAMS=""
fi
###
# Checking if PRERELEASE is either unset, 'true' or 'false'
###
if [ -n "$PRERELEASE" ] &&
{ [ "$PRERELEASE" != "true" ] && [ "$PRERELEASE" != "false" ]; }; then
if [ -z "$DEBUG" ]; then
echo "⚠️ PRERELEASE must be either unset, 'true' or 'false', but was \"$PRERELEASE\"!"
exit 1
else
echo "⚠️ Would exit here with code '0', but DEBUG is enabled."
fi
fi
###
# Calling Github to get the latest version
###
ORIGINAL_GITHUB_REPO="netbox-community/netbox"
GITHUB_REPO="${GITHUB_REPO-$ORIGINAL_GITHUB_REPO}"
URL_RELEASES="https://api.github.com/repos/${GITHUB_REPO}/releases?${GITHUB_OAUTH_PARAMS}"
# Composing the JQ commans to extract the most recent version number
JQ_LATEST="group_by(.prerelease) | .[] | sort_by(.published_at) | reverse | .[0] | select(.prerelease==${PRERELEASE-false}) | .tag_name"
CURL="curl -sS"
# Querying the Github API to fetch the most recent version number
VERSION=$($CURL "${URL_RELEASES}" | jq -r "${JQ_LATEST}")
###
# Check if the prerelease version is actually higher than stable version
###
if [ "${PRERELEASE}" == "true" ]; then
JQ_STABLE="group_by(.prerelease) | .[] | sort_by(.published_at) | reverse | .[0] | select(.prerelease==false) | .tag_name"
STABLE_VERSION=$($CURL "${URL_RELEASES}" | jq -r "${JQ_STABLE}")
# shellcheck disable=SC2003
MAJOR_STABLE=$(expr match "${STABLE_VERSION}" 'v\([0-9]\+\)')
# shellcheck disable=SC2003
MINOR_STABLE=$(expr match "${STABLE_VERSION}" 'v[0-9]\+\.\([0-9]\+\)')
# shellcheck disable=SC2003
MAJOR_UNSTABLE=$(expr match "${VERSION}" 'v\([0-9]\+\)')
# shellcheck disable=SC2003
MINOR_UNSTABLE=$(expr match "${VERSION}" 'v[0-9]\+\.\([0-9]\+\)')
if { [ "$MAJOR_STABLE" -eq "$MAJOR_UNSTABLE" ] && [ "$MINOR_STABLE" -ge "$MINOR_UNSTABLE" ]; } \
|| [ "$MAJOR_STABLE" -gt "$MAJOR_UNSTABLE" ]; then
echo "❎ Latest unstable version ('$VERSION') is not higher than the latest stable version ('$STABLE_VERSION')."
if [ -z "$DEBUG" ]; then
exit 0
else
echo "⚠️ Would exit here with code '0', but DEBUG is enabled."
fi
fi
fi
###
# Compose DOCKER_TAG to build
###
if [ -z "$DOCKER_TARGET" ] || [ "$DOCKER_TARGET" == "main" ]; then
DOCKER_TAG="${VERSION}"
else
DOCKER_TAG="${VERSION}-${DOCKER_TARGET}"
fi
###
# Check if the version received is not already available on Docker Hub:
###
ORIGINAL_DOCKERHUB_REPO="${DOCKER_ORG-netboxcommunity}/${DOCKER_REPO-netbox}"
DOCKERHUB_REPO="${DOCKERHUB_REPO-$ORIGINAL_DOCKERHUB_REPO}"
# Bearer Token
URL_DOCKERHUB_TOKEN="https://auth.docker.io/token?service=registry.docker.io&scope=repository:${DOCKERHUB_REPO}:pull"
BEARER_TOKEN="$($CURL "${URL_DOCKERHUB_TOKEN}" | jq -r .token)"
# Actual API call
URL_DOCKERHUB_TAG="https://registry.hub.docker.com/v2/${DOCKERHUB_REPO}/tags/list"
AUTHORIZATION_HEADER="Authorization: Bearer ${BEARER_TOKEN}"
ALREADY_BUILT="$($CURL -H "${AUTHORIZATION_HEADER}" "${URL_DOCKERHUB_TAG}" | jq -e ".tags | any(.==\"${DOCKER_TAG}\")")"
###
# Only build the image if it's not already been built before
###
if [ -n "$DEBUG" ] || [ "$ALREADY_BUILT" == "false" ]; then
if [ -n "$DEBUG" ]; then
echo "⚠️ Would not build, because ${DOCKER_TAG} already exists on https://hub.docker.com/r/${DOCKERHUB_REPO}, but DEBUG is enabled."
fi
# shellcheck disable=SC2068
./build.sh "${VERSION}" $@
exit $?
else
echo "${DOCKER_TAG} already exists on https://hub.docker.com/r/${DOCKERHUB_REPO}"
exit 0
fi