265 lines
7.3 KiB
Bash
265 lines
7.3 KiB
Bash
#!/usr/bin/env bash
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#
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# Gitea 远程备份脚本
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# Author: System Administrator
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# Version: 1.0.0
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# License: MIT
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#
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# 功能描述：通过SSH远程执行Gitea备份操作，并将备份文件同步到本地
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# 依赖要求：ssh, rsync, docker, date, grep, awk 等基础工具
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set -euo pipefail
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IFS=$'\n\t'
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################################################################################
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# 全局常量定义区
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################################################################################
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readonly REMOTE_PORT="22333"
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readonly REMOTE_HOST="t0"
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readonly SCRIPT_DIR="/root/wdd/backup"
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readonly REMOTE_GITEA_CONTAINER="gitea-gitea-1"
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readonly REMOTE_GITEA_CONFIG="/bitnami/gitea/custom/conf/app.ini"
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readonly REMOTE_BACKUP_SOURCE="/data/gitea/gitea_data/data/tmp/gitea-dump-*.zip"
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readonly LOCAL_BACKUP_TARGET="/data/t0_150_230_198_103/gitea/"
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# > 日志配置
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readonly LOG_DIR="${SCRIPT_DIR}/logs"
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readonly LOG_FILE="${LOG_DIR}/gitea_backup_$(date +%Y%m%d).log"
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# 日志级别常量
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readonly LOG_LEVEL_DEBUG=0
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readonly LOG_LEVEL_INFO=1
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readonly LOG_LEVEL_WARN=2
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readonly LOG_LEVEL_ERROR=3
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# 当前日志级别（默认INFO）
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CURRENT_LOG_LEVEL=${LOG_LEVEL_INFO}
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################################################################################
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# 函数声明区
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################################################################################
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# 输出格式化日志信息（同时输出到控制台和日志文件）
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# @param level string 日志级别（DEBUG/INFO/WARN/ERROR）
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# @param message string 日志消息内容
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# @return void
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# @require CURRENT_LOG_LEVEL, LOG_FILE
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log_message() {
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local level="$1"
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local message="$2"
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local timestamp
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timestamp=$(date '+%Y-%m-%d %H:%M:%S')
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local log_entry=""
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case "$level" in
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"DEBUG")
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if [ "${CURRENT_LOG_LEVEL}" -le ${LOG_LEVEL_DEBUG} ]; then
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log_entry="[DEBUG][${timestamp}] ${message}"
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echo "${log_entry}"
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echo "${log_entry}" >> "${LOG_FILE}"
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fi
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;;
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"INFO")
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if [ "${CURRENT_LOG_LEVEL}" -le ${LOG_LEVEL_INFO} ]; then
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log_entry="[INFO][${timestamp}] ${message}"
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echo "${log_entry}"
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echo "${log_entry}" >> "${LOG_FILE}"
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fi
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;;
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"WARN")
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if [ "${CURRENT_LOG_LEVEL}" -le ${LOG_LEVEL_WARN} ]; then
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log_entry="[WARN][${timestamp}] ${message}"
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echo "${log_entry}" >&2
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echo "${log_entry}" >> "${LOG_FILE}"
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fi
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;;
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"ERROR")
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if [ "${CURRENT_LOG_LEVEL}" -le ${LOG_LEVEL_ERROR} ]; then
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log_entry="[ERROR][${timestamp}] ${message}"
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echo "${log_entry}" >&2
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echo "${log_entry}" >> "${LOG_FILE}"
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fi
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;;
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*)
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log_entry="[UNKNOWN][${timestamp}] ${message}"
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echo "${log_entry}" >&2
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echo "${log_entry}" >> "${LOG_FILE}"
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;;
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esac
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}
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###
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# 执行远程SSH命令
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# @param command string 需要执行的远程命令
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# @return int 命令执行退出码
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# @require REMOTE_HOST, REMOTE_PORT
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execute_remote_command() {
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local command="$1"
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local exit_code
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log_message "DEBUG" "执行远程命令: ${command}"
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# > 通过SSH连接到远程主机执行命令
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ssh -p "${REMOTE_PORT}" "${REMOTE_HOST}" "${command}"
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exit_code=$?
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if [ ${exit_code} -ne 0 ]; then
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log_message "ERROR" "远程命令执行失败，退出码: ${exit_code}"
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return ${exit_code}
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fi
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return 0
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}
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###
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# 执行Gitea备份操作
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# @return int 操作执行状态码
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# @require REMOTE_GITEA_CONTAINER, REMOTE_GITEA_CONFIG
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perform_gitea_backup() {
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local backup_command="docker exec -i ${REMOTE_GITEA_CONTAINER} /opt/bitnami/gitea/bin/gitea dump -c ${REMOTE_GITEA_CONFIG}"
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log_message "INFO" "开始执行Gitea备份..."
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# > 执行Gitea dump命令生成备份文件
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if ! execute_remote_command "${backup_command}"; then
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log_message "ERROR" "Gitea备份命令执行失败"
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return 1
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fi
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log_message "INFO" "Gitea备份命令执行成功"
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return 0
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}
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###
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# 重命名备份文件（添加时间戳）
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# @return int 操作执行状态码
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# @require REMOTE_GITEA_CONTAINER
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rename_backup_file() {
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local rename_command="docker exec -i ${REMOTE_GITEA_CONTAINER} /bin/sh -c \"mv /opt/bitnami/gitea/gitea-dump-*.zip /opt/bitnami/gitea/data/tmp/gitea-dump-\$(date +%Y%m%d-%H%M%S).zip\""
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log_message "INFO" "开始重命名备份文件..."
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# > 在容器内重命名备份文件，添加时间戳
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if ! execute_remote_command "${rename_command}"; then
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log_message "ERROR" "备份文件重命名失败"
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return 1
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fi
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log_message "INFO" "备份文件重命名成功"
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return 0
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}
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###
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# 同步备份文件到本地
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# @return int 操作执行状态码
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# @require REMOTE_HOST, REMOTE_PORT, REMOTE_BACKUP_SOURCE, LOCAL_BACKUP_TARGET
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sync_backup_to_local() {
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log_message "INFO" "开始同步备份文件到本地..."
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# > 创建本地目标目录（如果不存在）
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if [ ! -d "${LOCAL_BACKUP_TARGET}" ]; then
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mkdir -p "${LOCAL_BACKUP_TARGET}"
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log_message "DEBUG" "创建本地目录: ${LOCAL_BACKUP_TARGET}"
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fi
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# > 使用rsync同步文件，保留关键属性
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rsync -avz -e "ssh -p ${REMOTE_PORT}" \
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"${REMOTE_HOST}:${REMOTE_BACKUP_SOURCE}" \
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"${LOCAL_BACKUP_TARGET}"
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local exit_code=$?
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if [ ${exit_code} -ne 0 ]; then
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log_message "ERROR" "rsync同步失败，退出码: ${exit_code}"
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return ${exit_code}
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fi
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log_message "INFO" "备份文件同步成功"
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return 0
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}
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###
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# 清理远程备份文件
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# @return int 操作执行状态码
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# @require REMOTE_BACKUP_SOURCE
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cleanup_remote_backup() {
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local cleanup_command="rm -f ${REMOTE_BACKUP_SOURCE}"
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log_message "INFO" "开始清理远程备份文件..."
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# > 删除远程主机上的临时备份文件
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if ! execute_remote_command "${cleanup_command}"; then
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log_message "ERROR" "远程备份文件清理失败"
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return 1
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fi
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log_message "INFO" "远程备份文件清理成功"
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return 0
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}
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###
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# 主执行函数 - 协调整个备份流程
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# @return int 脚本执行最终状态码
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main() {
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local overall_success=true
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log_message "INFO" "=== Gitea备份流程开始 ==="
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# 切换到工作目录
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cd "${SCRIPT_DIR}" || {
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log_message "ERROR" "无法切换到工作目录: ${SCRIPT_DIR}"
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return 1
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}
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# 执行备份流程
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if ! perform_gitea_backup; then
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overall_success=false
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fi
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if ! rename_backup_file; then
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overall_success=false
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fi
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if ! sync_backup_to_local; then
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overall_success=false
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fi
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if ! cleanup_remote_backup; then
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overall_success=false
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fi
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# 汇总执行结果
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if [ "${overall_success}" = true ]; then
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log_message "INFO" "=== Gitea备份流程完成 ==="
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return 0
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else
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log_message "ERROR" "=== Gitea备份流程部分失败 ==="
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return 1
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fi
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}
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################################################################################
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# 异常处理设置
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################################################################################
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# 设置trap捕获信号
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trap 'log_message "ERROR" "脚本被中断"; exit 1' INT TERM
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################################################################################
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# 主执行流程
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################################################################################
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# 函数调用关系：
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# main -> perform_gitea_backup -> execute_remote_command
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# -> rename_backup_file -> execute_remote_command
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# -> sync_backup_to_local
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# -> cleanup_remote_backup -> execute_remote_command
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# 执行主函数
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if main; then
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log_message "INFO" "脚本执行成功"
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exit 0
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else
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log_message "ERROR" "脚本执行失败"
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exit 1
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fi
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