matthew / deploy.sh

#!/bin/bash set -e deploy() { local release_path="$1" cd "${release_path}" if [ -f "${release_path}/.deploy/deploy.sh" ]; then /bin/bash .deploy/deploy.sh else echo "Starting deployment in ${release_path}" docker compose up -d fi } stop() { local release_path="$1" cd "${release_path}" if [ -f "${release_path}/.deploy/stop.sh" ]; then /bin/bash .deploy/stop.sh else echo "Stopping deployment in ${release_path}" docker compose down fi } cleanup() { local base_dir="$1" local current_release="$2" local release local listing=() local releases=() cd "${base_dir}" # Get listing of directories, sorted chronologically, newest first mapfile -t listing < <(ls -t -d -- */) # Filter out symlinks for current and previous, and what was just released for release in "${listing[@]}"; do case "${release}" in current/|previous/|"${current_release}/") true ;; *) releases+=( "${release}" ) ;; esac done # Keep only the most recent 5 releases if [[ ${#releases[@]} -gt 5 ]]; then echo "Removing old releases" for release in "${releases[@]:5}"; do echo "- Removing ${release}" rm -rf "${base_dir:?}/${release}" done fi } if [ "${GITHUB_TOKEN}" == "" ] || [ "${GITHUB_USERNAME}" == "" ];then echo "Missing github login information" exit 1; fi if [ $# -lt 2 ];then echo "Missing required arguments" echo "" echo "Usage:" echo " ${0} <repo> <sha>" echo "" echo "where <repo> is a repository under github.com/${GITHUB_USERNAME}, and" echo "<sha> is the commit to deploy." exit 1; fi # Get just the repo name REPO=${1#*/} SHA=$2 BASEDIR="/var/web/${REPO}" # This directory must exist; usually it will be a mount to S3-compatible # object storage SITE_CONFIG_DIR="/mnt/site-config" PREVIOUS= # Prepare deployment directory, if it does not exist if [ ! -d "${BASEDIR}" ];then echo "Creating deployment directory ${BASEDIR}" mkdir -p "${BASEDIR}" fi # Memoize "current" directory as PREVIOUS, if it exists if [ -d "${BASEDIR}/current" ];then PREVIOUS=$(realpath "${BASEDIR}/current") fi # Prepare new release echo "Preparing release directory based on commit ${SHA}" DEPLOY_DIR="${BASEDIR}/${SHA}" git clone --depth=1 --recurse-submodules "https://${GITHUB_USERNAME}:${GITHUB_TOKEN}@github.com/${GITHUB_USERNAME}/${REPO}.git" "${DEPLOY_DIR}" cd "${DEPLOY_DIR}" git checkout "${SHA}" # Get env file if [ -f "${DEPLOY_DIR}/env-version" ];then echo "Found env-version file; fetching production env" ENV_FILE="${SITE_CONFIG_DIR}/$(cat "${DEPLOY_DIR}/env-version")" if [ ! -f "${ENV_FILE}" ];then echo "FAILED - site config file specified in env-version not found" exit 1; fi cp "${ENV_FILE}" "${DEPLOY_DIR}/.env" fi # Build cd "${DEPLOY_DIR}" if [ -f "${DEPLOY_DIR}/.deploy/build.sh" ]; then /bin/bash .deploy/build.sh else if [ -f "${DEPLOY_DIR}/.deploy/pre-build.sh" ];then # This can be used to do things like create volumes echo "Building containers" echo "- Executing pre-build step" /bin/bash .deploy/pre-build.sh fi docker compose build fi # DEPLOY # Stop previous if [ "${PREVIOUS}" != "" ];then stop "${PREVIOUS}" fi # Start new echo "Starting deployment" set +e if ! deploy "${DEPLOY_DIR}"; then echo "FAILED deploying ${SHA}; rolling back" echo "- Stopping deployment" stop "${DEPLOY_DIR}" if [ "${PREVIOUS}" != "" ];then echo "- Restarting previous deployment" deploy "${PREVIOUS}" fi exit 1 fi set -e # SUCCESS cd "${BASEDIR}" if [ "${PREVIOUS}" != "" ];then ln -fsn "$(basename "${PREVIOUS}")" previous fi ln -fsn "${SHA}" current echo "SUCCESS deploying ${SHA}" # CLEANUP cleanup "${BASEDIR}" "${SHA}"