mongo_backup_mongodump.sh

#!/bin/bash
# mongodump多实例批量备份脚本

# 定义基本目录和日期变量
BASEDIR="/datacfs/mongobak"
BKDATE=$(date "+%Y%m%d")
LOGFILE="${BASEDIR}/backup_mongo.log"
# mongodump 和 mongosh 命令路径
MONGODUMP="/usr/local/mongodb/bin/mongodump"
MONGOSH="/usr/local/mongodb/bin/mongosh"

# 日志函数
log() {
    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $*" >> "$LOGFILE"
}

# 主机和备份配置信息（IP, 端口, 用户名, 密码, 认证数据库）
declare -A MONGO_CONFIGS=(
    ["fatmongo.fixpng.top"]="27017 backup_user:aaa123456 admin"
    ["devmongo.fixpng.top"]="27017 backup_user:aaa123456 admin"
    ["10.9.120.11"]="27017 backup:aaa123456b admin"
    ["10.9.120.12"]="27017 backup:aaa123456b admin"
)

# 创建备份目录并执行备份
for HOST in "${!MONGO_CONFIGS[@]}"; do
    IFS=' ' read -r PORT CREDENTIAL AUTH_DB <<< "${MONGO_CONFIGS[$HOST]}"
    USERPASS=(${CREDENTIAL//:/ })
    USER=${USERPASS[0]}
    PASS=${USERPASS[1]}

    BACKUP_DIR="${BASEDIR}/${HOST}/${BKDATE}"
    mkdir -pv "$BACKUP_DIR"

    # 获取数据库列表（排除系统数据库）
    DBS=$($MONGOSH --quiet --host "$HOST" --port "$PORT" --username "$USER" --password "$PASS" --authenticationDatabase="$AUTH_DB" --eval 'db.getMongo().getDBs().databases.filter(d => !["admin", "config", "local"].includes(d.name)).map(d => d.name).join("\n")')

    for DB in $DBS; do
        ARCHIVE_FILE="${BACKUP_DIR}/${DB}.tgz"
        log "Backing up ${HOST}:${PORT} database ${DB} to ${ARCHIVE_FILE}"
        $MONGODUMP --host "$HOST" --port "$PORT" -u"$USER" -p"$PASS" --authenticationDatabase="$AUTH_DB" -d "$DB" --gzip --archive="$ARCHIVE_FILE"
    done
done

# 删除超过6天的备份
log "Removing backups older than 6 days"
find "$BASEDIR"/* -type d -mtime +6 -exec rm -rf {} \;