matthew revised this gist . Go to revision
1 file changed, 167 insertions
deploy.sh(file created)
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| 1 | + | #!/bin/bash | |
| 2 | + | ||
| 3 | + | set -e | |
| 4 | + | ||
| 5 | + | deploy() { | |
| 6 | + | local release_path="$1" | |
| 7 | + | ||
| 8 | + | cd "${release_path}" | |
| 9 | + | if [ -f "${release_path}/.deploy/deploy.sh" ]; then | |
| 10 | + | /bin/bash .deploy/deploy.sh | |
| 11 | + | else | |
| 12 | + | echo "Starting deployment in ${release_path}" | |
| 13 | + | docker compose up -d | |
| 14 | + | fi | |
| 15 | + | } | |
| 16 | + | ||
| 17 | + | stop() { | |
| 18 | + | local release_path="$1" | |
| 19 | + | ||
| 20 | + | cd "${release_path}" | |
| 21 | + | if [ -f "${release_path}/.deploy/stop.sh" ]; then | |
| 22 | + | /bin/bash .deploy/stop.sh | |
| 23 | + | else | |
| 24 | + | echo "Stopping deployment in ${release_path}" | |
| 25 | + | docker compose down | |
| 26 | + | fi | |
| 27 | + | } | |
| 28 | + | ||
| 29 | + | cleanup() { | |
| 30 | + | local base_dir="$1" | |
| 31 | + | local current_release="$2" | |
| 32 | + | local release | |
| 33 | + | local listing=() | |
| 34 | + | local releases=() | |
| 35 | + | ||
| 36 | + | cd "${base_dir}" | |
| 37 | + | ||
| 38 | + | # Get listing of directories, sorted chronologically, newest first | |
| 39 | + | mapfile -t listing < <(ls -t -d -- */) | |
| 40 | + | ||
| 41 | + | # Filter out symlinks for current and previous, and what was just released | |
| 42 | + | for release in "${listing[@]}"; do | |
| 43 | + | case "${release}" in | |
| 44 | + | current/|previous/|"${current_release}/") | |
| 45 | + | true | |
| 46 | + | ;; | |
| 47 | + | *) | |
| 48 | + | releases+=( "${release}" ) | |
| 49 | + | ;; | |
| 50 | + | esac | |
| 51 | + | done | |
| 52 | + | ||
| 53 | + | # Keep only the most recent 5 releases | |
| 54 | + | if [[ ${#releases[@]} -gt 5 ]]; then | |
| 55 | + | echo "Removing old releases" | |
| 56 | + | for release in "${releases[@]:5}"; do | |
| 57 | + | echo "- Removing ${release}" | |
| 58 | + | rm -rf "${base_dir:?}/${release}" | |
| 59 | + | done | |
| 60 | + | fi | |
| 61 | + | } | |
| 62 | + | ||
| 63 | + | if [ "${GITHUB_TOKEN}" == "" ] || [ "${GITHUB_USERNAME}" == "" ];then | |
| 64 | + | echo "Missing github login information" | |
| 65 | + | exit 1; | |
| 66 | + | fi | |
| 67 | + | ||
| 68 | + | if [ $# -lt 2 ];then | |
| 69 | + | echo "Missing required arguments" | |
| 70 | + | echo "" | |
| 71 | + | echo "Usage:" | |
| 72 | + | echo " ${0} <repo> <sha>" | |
| 73 | + | echo "" | |
| 74 | + | echo "where <repo> is a repository under github.com/${GITHUB_USERNAME}, and" | |
| 75 | + | echo "<sha> is the commit to deploy." | |
| 76 | + | exit 1; | |
| 77 | + | fi | |
| 78 | + | ||
| 79 | + | # Get just the repo name | |
| 80 | + | REPO=${1#*/} | |
| 81 | + | SHA=$2 | |
| 82 | + | BASEDIR="/var/web/${REPO}" | |
| 83 | + | # This directory must exist; usually it will be a mount to S3-compatible | |
| 84 | + | # object storage | |
| 85 | + | SITE_CONFIG_DIR="/mnt/site-config" | |
| 86 | + | PREVIOUS= | |
| 87 | + | ||
| 88 | + | # Prepare deployment directory, if it does not exist | |
| 89 | + | if [ ! -d "${BASEDIR}" ];then | |
| 90 | + | echo "Creating deployment directory ${BASEDIR}" | |
| 91 | + | mkdir -p "${BASEDIR}" | |
| 92 | + | fi | |
| 93 | + | ||
| 94 | + | # Memoize "current" directory as PREVIOUS, if it exists | |
| 95 | + | if [ -d "${BASEDIR}/current" ];then | |
| 96 | + | PREVIOUS=$(realpath "${BASEDIR}/current") | |
| 97 | + | fi | |
| 98 | + | ||
| 99 | + | # Prepare new release | |
| 100 | + | echo "Preparing release directory based on commit ${SHA}" | |
| 101 | + | DEPLOY_DIR="${BASEDIR}/${SHA}" | |
| 102 | + | git clone --depth=1 --recurse-submodules "https://${GITHUB_USERNAME}:${GITHUB_TOKEN}@github.com/${GITHUB_USERNAME}/${REPO}.git" "${DEPLOY_DIR}" | |
| 103 | + | cd "${DEPLOY_DIR}" | |
| 104 | + | git checkout "${SHA}" | |
| 105 | + | ||
| 106 | + | # Get env file | |
| 107 | + | if [ -f "${DEPLOY_DIR}/env-version" ];then | |
| 108 | + | echo "Found env-version file; fetching production env" | |
| 109 | + | ENV_FILE="${SITE_CONFIG_DIR}/$(cat "${DEPLOY_DIR}/env-version")" | |
| 110 | + | ||
| 111 | + | if [ ! -f "${ENV_FILE}" ];then | |
| 112 | + | echo "FAILED - site config file specified in env-version not found" | |
| 113 | + | exit 1; | |
| 114 | + | fi | |
| 115 | + | ||
| 116 | + | cp "${ENV_FILE}" "${DEPLOY_DIR}/.env" | |
| 117 | + | fi | |
| 118 | + | ||
| 119 | + | # Build | |
| 120 | + | cd "${DEPLOY_DIR}" | |
| 121 | + | ||
| 122 | + | if [ -f "${DEPLOY_DIR}/.deploy/build.sh" ]; then | |
| 123 | + | /bin/bash .deploy/build.sh | |
| 124 | + | else | |
| 125 | + | if [ -f "${DEPLOY_DIR}/.deploy/pre-build.sh" ];then | |
| 126 | + | # This can be used to do things like create volumes | |
| 127 | + | echo "Building containers" | |
| 128 | + | echo "- Executing pre-build step" | |
| 129 | + | /bin/bash .deploy/pre-build.sh | |
| 130 | + | fi | |
| 131 | + | docker compose build | |
| 132 | + | fi | |
| 133 | + | ||
| 134 | + | # DEPLOY | |
| 135 | + | ||
| 136 | + | # Stop previous | |
| 137 | + | if [ "${PREVIOUS}" != "" ];then | |
| 138 | + | stop "${PREVIOUS}" | |
| 139 | + | fi | |
| 140 | + | ||
| 141 | + | # Start new | |
| 142 | + | echo "Starting deployment" | |
| 143 | + | ||
| 144 | + | set +e | |
| 145 | + | if ! deploy "${DEPLOY_DIR}"; then | |
| 146 | + | echo "FAILED deploying ${SHA}; rolling back" | |
| 147 | + | echo "- Stopping deployment" | |
| 148 | + | stop "${DEPLOY_DIR}" | |
| 149 | + | ||
| 150 | + | if [ "${PREVIOUS}" != "" ];then | |
| 151 | + | echo "- Restarting previous deployment" | |
| 152 | + | deploy "${PREVIOUS}" | |
| 153 | + | fi | |
| 154 | + | exit 1 | |
| 155 | + | fi | |
| 156 | + | set -e | |
| 157 | + | ||
| 158 | + | # SUCCESS | |
| 159 | + | cd "${BASEDIR}" | |
| 160 | + | if [ "${PREVIOUS}" != "" ];then | |
| 161 | + | ln -fsn "$(basename "${PREVIOUS}")" previous | |
| 162 | + | fi | |
| 163 | + | ln -fsn "${SHA}" current | |
| 164 | + | echo "SUCCESS deploying ${SHA}" | |
| 165 | + | ||
| 166 | + | # CLEANUP | |
| 167 | + | cleanup "${BASEDIR}" "${SHA}" | |
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