新增备份监控与定时配置

2026-08-16 23:53:50 +08:00
parent 66cb03ebce
commit f67ee12d72
19 changed files with 612 additions and 3 deletions
@@ -0,0 +1,83 @@
+#!/usr/bin/env bash
+set -euo pipefail
+umask 077
+
+# 由宿主机 cron 每分钟调用。调度配置来自后台 system_configs，实际执行仍在宿主机，
+# Web 后端不接触 Docker socket、备份载荷或客户端加密密码。
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+# shellcheck source=backup-common.sh
+source "${SCRIPT_DIR}/backup-common.sh"
+
+config_value() {
+  local key="$1" fallback="$2" value
+  value="$(backup_mysql_root_query "SELECT value FROM system_configs WHERE \`key\` = '${key}' LIMIT 1;" 2>/dev/null || true)"
+  value="${value//$'\n'/}"
+  printf '%s' "${value:-${fallback}}"
+}
+
+write_job_state() {
+  local status_dir="$1" type="$2" status="$3" message="$4"
+  mkdir -p "${status_dir}"
+  {
+    printf 'job_type=%q\n' "${type}"
+    printf 'job_status=%q\n' "${status}"
+    printf 'job_at=%q\n' "$(date -Iseconds)"
+    printf 'job_message=%q\n' "${message}"
+  } > "${status_dir}/last-job.env"
+  chmod 600 "${status_dir}/last-job.env"
+}
+
+run_job() {
+  local status_dir="$1" type="$2" script="$3"
+  shift 3
+  if "${script}" "$@"; then
+    write_job_state "${status_dir}" "${type}" success '执行成功'
+    "${SCRIPT_DIR}/backup-status.sh" write || true
+    return
+  fi
+  local code=$?
+  write_job_state "${status_dir}" "${type}" failed "执行失败（退出码 ${code}）"
+  "${SCRIPT_DIR}/backup-status.sh" write || true
+  return "${code}"
+}
+
+main() {
+  backup_require_cmd docker
+  backup_require_cmd flock
+  local backup_dir status_dir enabled hour minute interval now_hour now_minute
+  backup_dir="$(backup_require_env BACKUP_DIR)"
+  status_dir="${BACKUP_STATUS_DIR:-${backup_dir}/status}"
+  backup_validate_dir "${status_dir}"
+  backup_lock_or_exit "${backup_dir}/.scheduler.lock"
+
+  enabled="$(config_value 'backup.schedule_enabled' 'true')"
+  hour="$(config_value 'backup.full_hour' '4')"
+  minute="$(config_value 'backup.full_minute' '30')"
+  interval="$(config_value 'backup.binlog_interval_minutes' '1')"
+  [[ "${enabled}" == true || "${enabled}" == false ]] || { backup_error 'backup.schedule_enabled 必须为 true 或 false'; exit 1; }
+  [[ "${hour}" =~ ^[0-9]+$ && "${hour}" -le 23 && "${minute}" =~ ^[0-9]+$ && "${minute}" -le 59 ]] || {
+    backup_error '备份全量时间配置无效'
+    exit 1
+  }
+  [[ "${interval}" =~ ^[0-9]+$ && "${interval}" -ge 1 && "${interval}" -le 5 ]] || {
+    backup_error 'binlog 归档间隔必须为 1-5 分钟'
+    exit 1
+  }
+  if [[ "${enabled}" == false ]]; then
+    "${SCRIPT_DIR}/backup-status.sh" write || true
+    exit 0
+  fi
+
+  now_hour="$((10#$(date +%H)))"
+  now_minute="$((10#$(date +%M)))"
+  if ((now_minute % interval == 0)); then
+    run_job "${status_dir}" binlog "${SCRIPT_DIR}/archive-binlog.sh" archive
+  fi
+  if ((now_hour == hour && now_minute == minute)); then
+    run_job "${status_dir}" full "${SCRIPT_DIR}/backup-online.sh" full
+  fi
+  "${SCRIPT_DIR}/backup-status.sh" write || true
+}
+
+main "$@"