102 lines
3.7 KiB
Markdown
102 lines
3.7 KiB
Markdown
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author = "FlintyLemming"
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title = "群晖 DSM 7.x 安装 哪吒监控 Agent"
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slug = "3929551d08bd4bb0a8baa453e2d92b0c"
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date = "2022-10-08"
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description = ""
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categories = ["HomeLab"]
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tags = ["Synology", "哪吒监控"]
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image = "https://img.mitsea.com/blog/posts/2022/10/%E7%BE%A4%E6%99%96%20DSM%207.x%20%E5%AE%89%E8%A3%85%20%E5%93%AA%E5%90%92%E7%9B%91%E6%8E%A7%20Agent/title.jpg?x-oss-process=style/ImageCompress"
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## 下载 Agent
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1. 先去哪吒的下载页下载符合自己群晖 CPU 架构的 Agent 客户端。我是 DS420+，Intel CPU，下载 nezha-agent_linux_amd64.zip。
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<https://github.com/naiba/nezha/releases>
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2. 解压后，把里面的二进制文件随便放到一个地方
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3. SSH 到群晖，使用 `sudo -i` 切换到 root 账号
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4. 找到刚才放进去的文件，共享文件夹一般在 /volume1 下面。刚才我是放在了 AppData 这个共享文件夹里，那二进制文件就在 /volume1/AppData 下
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## 测试启动
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首先要手动执行下二进制文件，确认使用正常。
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1. 在 Dashboard 里创建一个新设备，获取链接密码
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2. 进到 agent 所在文件夹后，通过执行 ./nezha-agent 可以查看使用帮助
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3. 基本上指定一下服务器地址和密码即可，命令为
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```bash
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./nezha-agent -s <Dashboard服务器地址>:<端口> -p <连接密码>
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```
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4. 执行后，没报错，并且在 Web 上能看到信息就可以
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5. 记下自己的执行命令，并把 `./` 替换成绝对路径，比如我的文件放在 `/volume1/AppData` 下，那我的执行命令就是
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```bash
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/volume1/AppData/nezha-agent -s <Dashboard服务器地址>:<端口> -p <连接密码>
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```
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## 配置服务
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直接执行命令虽然能用，但是一关窗口就停止运行了。丢到 screen 里也不行，因为 Agent 会自动更新，更新时会停止进程。DSM 7 内置 systemctl 命令，可以很方便设置为系统服务，保活进程。
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1. 在 `/usr/lib/systemd/system` 下创建一个 `nezha-agent.service` 文本文件
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```bash
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vim /usr/lib/systemd/system/nezha-agent.service
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```
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内容如下
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```bash
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[Unit]
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Description=Nezha Agent
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After=syslog.target
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[Service]
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Type=simple
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User=root
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Group=root
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ExecStart=<刚才记下的执行命令>
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Restart=always
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[Install]
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WantedBy=multi-user.target
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```
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2. 加载配置文件
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```bash
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systemctl daemon-reload
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```
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3. 启动服务
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```bash
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systemctl enable nezha-agent
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systemctl start nezha-agent
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```
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4. 查看状态
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```bash
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systemctl status nezha-agent
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```
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> Photo by [Steve Johnson](https://unsplash.com/@steve_j?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText) on [Unsplash](https://unsplash.com/?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText)
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