feat(scripts): add upload to S3 scripts

scripts/backup-upload-s3.sh

@@ -0,0 +1,128 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+usage() {
+  cat <<'EOF'
+Usage:
+  backup-upload-s3.sh
+
+Environment:
+  DEPLOY_ROOT                       Deployment directory. Defaults to ~/qlockify-deployment.
+  S3_BACKUP_BUCKET                  S3 bucket name.
+  S3_BACKUP_PREFIX                  S3 object prefix. Defaults to qlockify.
+  S3_BACKUP_REGION                  S3 region. Defaults to us-east-1.
+  S3_BACKUP_ENDPOINT_URL            Optional S3-compatible endpoint URL.
+  S3_BACKUP_ACCESS_KEY_ID           S3 access key.
+  S3_BACKUP_SECRET_ACCESS_KEY       S3 secret key.
+  BACKUP_ENCRYPTION_PASSPHRASE      Passphrase used to encrypt backup archives.
+  BACKUP_LOCAL_KEEP_LATEST          Set to 1 to keep latest encrypted archive locally.
+EOF
+}
+
+log() {
+  printf '[backup-s3] %s\n' "$*"
+}
+
+fail() {
+  printf '[backup-s3] %s\n' "$*" >&2
+  exit 1
+}
+
+require_var() {
+  local name="$1"
+  [[ -n "${!name:-}" ]] || fail "$name is required"
+}
+
+load_env() {
+  local env_path="$1"
+  [[ -f "$env_path" ]] || fail "Deployment env file not found: $env_path"
+  set -a
+  # shellcheck disable=SC1090
+  . "$env_path"
+  set +a
+}
+
+aws_s3() {
+  if [[ -n "${S3_BACKUP_ENDPOINT_URL:-}" ]]; then
+    aws --endpoint-url "$S3_BACKUP_ENDPOINT_URL" s3 "$@"
+  else
+    aws s3 "$@"
+  fi
+}
+
+normalize_prefix() {
+  local value="${1:-qlockify}"
+  value="${value#/}"
+  value="${value%/}"
+  printf '%s' "$value"
+}
+
+if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
+  usage
+  exit 0
+fi
+
+command -v aws >/dev/null 2>&1 || fail "aws CLI is required"
+command -v openssl >/dev/null 2>&1 || fail "openssl is required"
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+DEPLOY_ROOT="${DEPLOY_ROOT:-$(cd "$SCRIPT_DIR/.." && pwd)}"
+DEPLOY_ENV="$DEPLOY_ROOT/.env"
+BACKUP_SCRIPT="$SCRIPT_DIR/backup.sh"
+
+[[ -x "$BACKUP_SCRIPT" ]] || fail "Backup script is not executable: $BACKUP_SCRIPT"
+load_env "$DEPLOY_ENV"
+
+S3_BACKUP_PREFIX="$(normalize_prefix "${S3_BACKUP_PREFIX:-qlockify}")"
+S3_BACKUP_REGION="${S3_BACKUP_REGION:-us-east-1}"
+
+require_var S3_BACKUP_BUCKET
+require_var S3_BACKUP_ACCESS_KEY_ID
+require_var S3_BACKUP_SECRET_ACCESS_KEY
+require_var BACKUP_ENCRYPTION_PASSPHRASE
+
+export AWS_ACCESS_KEY_ID="$S3_BACKUP_ACCESS_KEY_ID"
+export AWS_SECRET_ACCESS_KEY="$S3_BACKUP_SECRET_ACCESS_KEY"
+export AWS_DEFAULT_REGION="$S3_BACKUP_REGION"
+export AWS_EC2_METADATA_DISABLED=true
+
+WORK_DIR="$(mktemp -d)"
+trap 'rm -rf "$WORK_DIR"' EXIT
+
+PLAIN_DIR="$WORK_DIR/plain"
+mkdir -p "$PLAIN_DIR"
+
+log "Creating local backup archive"
+DEPLOY_ROOT="$DEPLOY_ROOT" "$BACKUP_SCRIPT" "$PLAIN_DIR"
+
+shopt -s nullglob
+archives=("$PLAIN_DIR"/*.tar.gz)
+shopt -u nullglob
+[[ "${#archives[@]}" -eq 1 ]] || fail "Expected exactly one backup archive, found ${#archives[@]}"
+
+ARCHIVE_PATH="${archives[0]}"
+ARCHIVE_NAME="$(basename "$ARCHIVE_PATH")"
+ENCRYPTED_NAME="$ARCHIVE_NAME.enc"
+ENCRYPTED_PATH="$WORK_DIR/$ENCRYPTED_NAME"
+S3_URI="s3://$S3_BACKUP_BUCKET/$S3_BACKUP_PREFIX/$ENCRYPTED_NAME"
+
+log "Encrypting backup archive"
+openssl enc -aes-256-cbc -salt -pbkdf2 -iter 200000 \
+  -in "$ARCHIVE_PATH" \
+  -out "$ENCRYPTED_PATH" \
+  -pass env:BACKUP_ENCRYPTION_PASSPHRASE
+
+rm -f "$ARCHIVE_PATH"
+
+log "Uploading encrypted backup to $S3_URI"
+aws_s3 cp "$ENCRYPTED_PATH" "$S3_URI" --only-show-errors
+
+if [[ "${BACKUP_LOCAL_KEEP_LATEST:-1}" == "1" ]]; then
+  LATEST_DIR="$DEPLOY_ROOT/backups/latest"
+  mkdir -p "$LATEST_DIR"
+  find "$LATEST_DIR" -type f -name '*.tar.gz.enc' -delete
+  cp "$ENCRYPTED_PATH" "$LATEST_DIR/$ENCRYPTED_NAME"
+  log "Kept latest encrypted backup locally: $LATEST_DIR/$ENCRYPTED_NAME"
+fi
+
+log "S3 backup upload completed: $S3_URI"