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@@ -17,7 +17,6 @@
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使用 `docker network create` 命令可以创建自定义网络:
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```bash
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## 创建网络
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$ docker network create mynet
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@@ -26,13 +25,11 @@ $ docker network create mynet
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$ docker network inspect mynet
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```
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### 9.3.3 使用自定义网络
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启动容器时通过 `--network` 参数指定连接的网络:
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```bash
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## 启动容器并连接到自定义网络
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$ docker run -d --name web --network mynet nginx
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@@ -44,7 +41,6 @@ $ docker exec web ping db
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PING db (172.18.0.3): 56 data bytes
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64 bytes from 172.18.0.3: seq=0 ttl=64 time=0.083 ms
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```
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### 9.3.4 容器名 DNS 解析
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自定义网络自动提供 DNS 服务。Docker 守护进程在 `127.0.0.11` 运行了一个嵌入式 DNS 服务器,容器内的 DNS 请求会被转发到这里:
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@@ -59,13 +55,11 @@ flowchart LR
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Web["web<br/>172.18.0.2"] -- "DNS: 'db' → 172.18.0.3" --> DB["db<br/>172.18.0.3"]
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end
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```
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### 9.3.5 常用网络命令
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以下是 Docker 网络管理中常用的命令:
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```bash
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## 列出网络
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$ docker network ls
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@@ -94,7 +88,6 @@ $ docker network rm mynet
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$ docker network prune
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```
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---
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> **🔥 踩坑实录**
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