Files
gochat/backend/scripts/db_backup.sh
T
Rogee 92f0d51375 refactor: 统一 DB/Redis 配置为 DSN 模式 + 移除 Helm/K8s 部署
- DatabaseConfig: Host/Port/User/Password/Name/DBName/SSLMode → 单个 DSN 字段
- RedisConfig: Host/Port/Password/DB/URL → 单个 DSN 字段
- 环境变量: GOCHAT_DATABASE_* (7个) → GOCHAT_DATABASE_DSN, GOCHAT_REDIS_* (5个) → GOCHAT_REDIS_DSN
- validator.go: DSN URL 解析校验 (scheme + host)
- redis.go: redis.ParseURL(cfg.DSN) 直连
- 所有 docker-compose / CI / shell 脚本 / .env 同步更新
- 删除 deploy/helm/ 整个目录 (20个文件)
- CI 删除 helm-validate / deploy-staging / deploy-production 三个 job
- 文档同步更新 (README, 架构设计, PRD, 滚动升级)
2026-07-29 20:58:10 +08:00

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#!/bin/bash
# GoChat Database Backup Script
# Reference: Chatwoot uses pg_dump for backup in production deployments
# Usage: ./scripts/db_backup.sh [env]
set -euo pipefail
ENV="${1:-production}"
TIMESTAMP=$(date +%Y%m%d_%H%M%S)
BACKUP_DIR="${GOCHAT_BACKUP_DIR:-/var/backups/gochat}"
DSN="${GOCHAT_DATABASE_DSN:-}"
RETENTION_DAYS="${GOCHAT_BACKUP_RETENTION_DAYS:-30}"
if [[ -z "$DSN" ]]; then
echo "[$(date)] ERROR: GOCHAT_DATABASE_DSN is not set"
exit 1
fi
# Parse DSN: postgres://user:password@host:port/dbname?sslmode=...
DB_USER=$(echo "$DSN" | sed 's|.*://||; s|:.*||')
DB_PASS=$(echo "$DSN" | sed 's|.*://[^:]*:||; s|@.*||')
DB_HOST=$(echo "$DSN" | sed 's|.*@||; s|:.*||')
DB_PORT=$(echo "$DSN" | sed 's|.*@.*:||; s|/.*||')
DB_NAME=$(echo "$DSN" | sed 's|.*/||; s|\?.*||')
mkdir -p "${BACKUP_DIR}"
BACKUP_FILE="${BACKUP_DIR}/${DB_NAME}_${TIMESTAMP}.sql.gz"
echo "[$(date)] Starting backup of ${DB_NAME} on ${DB_HOST}:${DB_PORT}"
# pg_dump with compression — mirrors Chatwoot backup approach
PGPASSWORD="${DB_PASS}" pg_dump \
-h "${DB_HOST}" \
-p "${DB_PORT}" \
-U "${DB_USER}" \
-d "${DB_NAME}" \
--format=custom \
--compress=9 \
| gzip > "${BACKUP_FILE}"
BACKUP_SIZE=$(du -h "${BACKUP_FILE}" | cut -f1)
echo "[$(date)] Backup complete: ${BACKUP_FILE} (${BACKUP_SIZE})"
# Prune old backups beyond retention period
find "${BACKUP_DIR}" -name "*.sql.gz" -mtime +"${RETENTION_DAYS}" -delete
echo "[$(date)] Pruned backups older than ${RETENTION_DAYS} days"
# Verify backup integrity
gunzip -t "${BACKUP_FILE}" && echo "[$(date)] Backup integrity verified" || {
echo "[$(date)] ERROR: Backup integrity check failed!"
rm -f "${BACKUP_FILE}"
exit 1
}