37 lines
1.3 KiB
Markdown
37 lines
1.3 KiB
Markdown
---
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title: "Docker Daemon 代理"
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type: concept
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tags: [docker, proxy]
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last_updated: 2026-04-17
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---
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## Definition
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Docker Daemon 代理是指为 Docker 守护进程（dockerd）配置 HTTP/HTTPS 代理，使 `docker pull`、`docker push` 等操作能够通过代理服务器访问外部网络。
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## Problem
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Docker 守护进程由 systemd 启动，不读取普通用户的 shell 环境变量（如 HTTP_PROXY、HTTPS_PROXY），因此即使系统级配置了代理，Docker 操作仍可能失败。
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## Solution
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通过 systemd drop-in 配置文件为 Docker Daemon 设置环境变量：
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1. 创建配置目录：`sudo mkdir -p /etc/systemd/system/docker.service.d`
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2. 创建代理配置文件：`sudo nano /etc/systemd/system/docker.service.d/http-proxy.conf`
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3. 添加内容：
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```
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[Service]
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Environment="HTTP_PROXY=http://127.0.0.1:10808/"
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Environment="HTTPS_PROXY=http://127.0.0.1:10808/"
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Environment="NO_PROXY=localhost,127.0.0.1"
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```
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4. 重载并重启：`sudo systemctl daemon-reload && sudo systemctl restart docker`
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## Verification
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```bash
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docker info | grep -i proxy
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```
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## Related Concepts
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- [[SOCKS5代理]]：SOCKS5 代理协议
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- [[透明代理]]：另一种强制流量走代理的机制
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- [[科学上网]]：通过代理服务器绕过网络限制访问被封锁网站的技术
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