128 lines
3.2 KiB
Bash
128 lines
3.2 KiB
Bash
#!/usr/bin/env bash
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set -Eeuo pipefail
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usage() {
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cat <<'EOF'
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Usage:
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backup.sh [output-directory]
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Environment:
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DEPLOY_ROOT Deployment directory. Defaults to ~/guilan-ace-deployment.
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Creates a timestamped .tar.gz archive containing:
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- PostgreSQL dump from the db service
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- media files from the Django media volume
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- deployment, backend, and frontend .env files when present
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EOF
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}
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log() {
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printf '[backup] %s\n' "$*"
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}
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fail() {
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printf '[backup] %s\n' "$*" >&2
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exit 1
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}
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require_file() {
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local path="$1"
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[[ -f "$path" ]] || fail "Required file not found: $path"
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}
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compose() {
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docker compose --env-file "$DEPLOY_ENV" -f "$DEPLOY_ROOT/docker-compose.yml" "$@"
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}
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wait_for_db() {
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compose exec -T db sh -c '
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set -eu
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: "${DB_USER:?DB_USER is missing}"
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: "${DB_NAME:?DB_NAME is missing}"
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until pg_isready --username="$DB_USER" --dbname="$DB_NAME" --host=127.0.0.1; do
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sleep 1
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done
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' >/dev/null
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}
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copy_env_if_exists() {
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local source_path="$1"
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local target_path="$2"
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if [[ -f "$source_path" ]]; then
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cp "$source_path" "$target_path"
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fi
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}
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if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
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usage
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exit 0
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fi
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DEPLOY_ROOT="${DEPLOY_ROOT:-$HOME/guilan-ace-deployment}"
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OUTPUT_DIR="${1:-$DEPLOY_ROOT/backups}"
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BACKEND_ENV="$DEPLOY_ROOT/backend/guilan-ace-backend/.env"
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FRONTEND_ENV="$DEPLOY_ROOT/frontend/guilan-ace-frontend/.env"
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DEPLOY_ENV="$DEPLOY_ROOT/.env"
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require_file "$DEPLOY_ROOT/docker-compose.yml"
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require_file "$DEPLOY_ENV"
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require_file "$BACKEND_ENV"
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mkdir -p "$OUTPUT_DIR"
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WORK_DIR="$(mktemp -d)"
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trap 'rm -rf "$WORK_DIR"' EXIT
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TIMESTAMP="$(date -u +'%Y%m%d-%H%M%S')"
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ARCHIVE_NAME="guilan-ace-backup-$TIMESTAMP.tar.gz"
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ARCHIVE_PATH="$OUTPUT_DIR/$ARCHIVE_NAME"
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mkdir -p "$WORK_DIR/env"
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log "Checking Docker Compose configuration"
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compose config -q
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log "Starting database service if needed"
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compose up -d db
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wait_for_db
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log "Dumping database from db service"
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compose exec -T db sh -c '
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set -eu
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: "${DB_USER:?DB_USER is missing}"
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: "${DB_NAME:?DB_NAME is missing}"
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pg_dump \
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--username="$DB_USER" \
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--dbname="$DB_NAME" \
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--format=plain \
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--clean \
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--if-exists \
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--no-owner \
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--no-privileges
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' > "$WORK_DIR/database.sql"
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log "Archiving media files from Django media volume"
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if compose ps --status running --services | grep -qx 'web'; then
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compose exec -T web sh -c 'mkdir -p /app/media && tar -C /app/media -czf - .' > "$WORK_DIR/media.tar.gz"
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else
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log "Web service is not running; using a temporary container for media volume"
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compose run --rm --no-deps --entrypoint sh web -c 'mkdir -p /app/media && tar -C /app/media -czf - .' > "$WORK_DIR/media.tar.gz"
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fi
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log "Copying environment files"
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copy_env_if_exists "$DEPLOY_ENV" "$WORK_DIR/env/deployment.env"
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copy_env_if_exists "$BACKEND_ENV" "$WORK_DIR/env/backend.env"
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copy_env_if_exists "$FRONTEND_ENV" "$WORK_DIR/env/frontend.env"
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cat > "$WORK_DIR/manifest.txt" <<EOF
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name=$ARCHIVE_NAME
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created_at_utc=$TIMESTAMP
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deploy_root=$DEPLOY_ROOT
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includes=database.sql,media.tar.gz,env/deployment.env,env/backend.env,env/frontend.env
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EOF
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log "Creating archive $ARCHIVE_PATH"
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tar -C "$WORK_DIR" -czf "$ARCHIVE_PATH" .
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log "Backup completed: $ARCHIVE_PATH"
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