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- #!/bin/bash
-
- ################################################################################
- # For this script to work properly it is required to define some environment variables
- # in the CI/CD Env variable declaration, while others should be passed as parameters.
- #
- #------------------------------------------------------------------------------
- # Defined as part of the CD/CI Env Variables:
- #
- # CD_DOCKER_USERNAME
- # A DockerHub username to be used for uploading the build.
- #
- # CD_DOCKER_PASSWORD
- # A DockerHub password to be used for uploading the build.
- #
- # CD_DOCKER_REPO
- # A DockerHub repository. By default the CD_REF_SLUG is also used as the docker repo.
- #
- # CD_BUILD_ALL
- # As the build is supposed to be done only for master (for a nightly deployments) and for releases
- # (like 'release-2.0.5' for production deployments), it is additionally required to include this
- # variable in order to build any other brnach, as it may be required for testing or reviewing work
- # as part of the development process.
- #
-
- display_usage() {
- echo "This script should be used as part of a CI strategy."
- echo -e "Usage:\n build_image.sh [ARGUMENTS]"
- echo -e "\nMandatory arguments \n"
- echo -e " repo_slug The git repository (e.g. blindsidenetworks/scalelite)"
- echo -e "\nOptional arguments \n"
- echo -e " branch | tag The branch (e.g. master | release-2.0.5)"
- }
-
- # if less than two arguments supplied, display usage
- if [ $# -le 0 ]; then
- display_usage
- exit 1
- fi
-
- # check whether user had supplied -h or --help . If yes display usage
- if [[ ($# == "--help") || $# == "-h" ]]; then
- display_usage
- exit 0
- fi
-
- export CD_REF_SLUG=$1
- export CD_REF_NAME=$2
- if [ -z $CD_REF_NAME ]; then
- export CD_REF_NAME=$(git branch | grep \* | cut -d ' ' -f2)
- fi
-
- if [ "$CD_REF_NAME" != "master" ] && [[ "$CD_REF_NAME" != *"release"* ]] && ( [ -z "$CD_BUILD_ALL" ] || [ "$CD_BUILD_ALL" != "true" ] ); then
- echo "#### Docker image for $CD_REF_SLUG:$CD_REF_NAME won't be built"
- exit 0
- fi
-
- # Include sqlite for production
- sqliteCount="$(grep "gem 'sqlite3'" Gemfile | wc -l)"
-
- if [ $sqliteCount -lt 2 ]; then
- sed -i "/^group :production do/a\ \ gem 'sqlite3', '~> 1.3.6'" Gemfile
- fi
-
- # Set the version tag when it is a release or the commit sha was included.
- if [[ "$CD_REF_NAME" == *"v"* ]]; then
- export CD_BUILD_NUMBER=${CD_REF_NAME:1}
- else
- export CD_BUILD_NUMBER="$CD_REF_NAME ($(eval git rev-parse --short=7 HEAD))"
- fi
-
- # Build the image
- if [ -z $CD_DOCKER_REPO ]; then
- export CD_DOCKER_REPO=$CD_REF_SLUG
- fi
- echo "#### Docker image $CD_DOCKER_REPO:$CD_REF_NAME is being built"
- docker build --build-arg BUILD_NUMBER="${CD_BUILD_NUMBER}" -t $CD_DOCKER_REPO:$CD_REF_NAME .
-
- if [ -z "$CD_DOCKER_USERNAME" ] || [ -z "$CD_DOCKER_PASSWORD" ]; then
- echo "#### Docker image for $CD_DOCKER_REPO can't be published because CD_DOCKER_USERNAME or CD_DOCKER_PASSWORD are missing (Ignore this warning if running outside a CD/CI environment)"
- exit 0
- fi
-
- # Publish the image
- docker login -u="$CD_DOCKER_USERNAME" -p="$CD_DOCKER_PASSWORD"
- echo "#### Docker image $CD_DOCKER_REPO:$CD_REF_NAME is being published"
- docker push $CD_DOCKER_REPO
-
- # Publish image as latest and v2 if it is a release (excluding alpha and beta)
- if [[ "$CD_REF_NAME" == *"v"* ]] && [[ "$CD_REF_NAME" != *"alpha"* ]] && [[ "$CD_REF_NAME" != *"beta"* ]]; then
- docker_image_id=$(docker images | grep -E "^$CD_DOCKER_REPO.*$CD_REF_NAME" | awk -e '{print $3}')
- docker tag $docker_image_id $CD_DOCKER_REPO:latest
- docker push $CD_DOCKER_REPO:latest
- docker tag $docker_image_id $CD_DOCKER_REPO:v2
- docker push $CD_DOCKER_REPO:v2
- fi
- exit 0
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