154 lines
3.9 KiB
Markdown
154 lines
3.9 KiB
Markdown
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<h2><center>Docker-compose</center></h2>
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------
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## 一：Docker-compose 概述
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Compose 是一个用于定义和运行多容器 Docker 应用程序的工具。使用 Compose，您可以使用 YAML 文件来配置应用程序的服务。然后，使用一个命令，您可以从您的配置中创建并启动所有服务。
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Compose 适用于所有环境：生产、登台、开发、测试以及 CI 工作流程。
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**使用 Compose 基本上是一个三步过程：**
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- 使用定义您的应用程序的环境，`Dockerfile`以便可以在任何地方复制它
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- 定义构成您的应用程序的服务，`docker-compose.yml` 以便它们可以在隔离环境中一起运行
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- 运行`docker compose up`，Docker compose 命令启动并运行您的整个应用程序
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## 二：Docker-compose 安装
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### 1. 下载
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```bash
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[root@docker ~]# curl -SL https://github.com/docker/compose/releases/download/v2.6.0/docker-compose-linux-x86_64 -o /usr/local/bin/docker-compose
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```
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### 2. 创建软连接
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```bash
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[root@docker ~]# ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
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```
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### 3. 添加执行权限
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```bash
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[root@docker ~]# chmod +x /usr/bin/docker-compose
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```
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### 4. 查看版本
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```bash
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[root@docker ~]# docker-compose --version
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Docker Compose version v2.6.0
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```
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## 三：使用
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### 1. 创建项目目录结构
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```bash
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[root@docker ~]# mkdir nginx
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[root@docker ~]# cd nginx
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[root@docker nginx]# mkdir conf html
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```
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### 2. 编写`Nginx`配置文件
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```bash
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[root@docker nginx]# vim conf/nginx.conf
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server {
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listen 80;
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server_name localhost;
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location / {
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root /usr/share/nginx/html;
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index index.html index.htm;
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}
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}
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```
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### 3. 创建静态文件
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在`html/index.html`中写入测试内容：
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```bash
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[root@docker nginx]# vim html/index.html
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<!DOCTYPE html>
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<html>
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<head>
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<title>Nginx in Docker</title>
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</head>
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<body>
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<h1>Hello from Docker + Nginx!</h1>
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</body>
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</html>
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```
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### 4. 编写`docker-compose.yml`
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```bash
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[root@docker nginx]# vim docker-compose.yml
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version: '3.8'
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services:
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nginx:
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image: nginx:latest
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container_name: nginx-v1
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ports:
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- "80:80"
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volumes:
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- ./conf/nginx.conf:/etc/nginx/conf.d/default.conf
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- ./html:/usr/share/nginx/html
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restart: unless-stopped
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参数说明：
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ports: 映射宿主机 80 端口到容器的 80 端口
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restart: 容器意外退出时自动重启。
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```
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### 5. 启动服务
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```bash
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# 启动容器（后台运行）
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[root@docker nginx]# docker-compose up -d
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[+] Running 2/2
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⠿ Network nginx_default Created 0.1s
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⠿ Container nginx-v1 Started 0.3s
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# 查看运行状态
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[root@docker nginx]# docker ps
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CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
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f289f37ccc44 nginx:latest "/docker-entrypoint.…" 4 seconds ago Up 3 seconds 0.0.0.0:80->80/tcp, :::80->80/tcp nginx-v1
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# 查看日志
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[root@docker nginx]# docker-compose logs nginx
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```
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### 6. 验证
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```bash
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[root@docker nginx]# curl http://localhost
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<!DOCTYPE html>
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<html>
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<head>
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<title>Nginx in Docker</title>
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</head>
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<body>
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<h1>Hello from Docker + Nginx!</h1>
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</body>
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</html>
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```
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### 7. 其他命令
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```bash
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[root@docker nginx]# docker-compose up -d //后台运行
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[root@docker nginx]# docker-compose ps //列出容器
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[root@docker nginx]# docker-compose pause //暂停服务
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[root@docker nginx]# docker-compose unpause //取消暂停服务
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[root@docker nginx]# docker-compose down //停止并移除容器、网络
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[root@docker nginx]# docker-compose logs //查看容器的输出
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[root@docker nginx]# docker-compose start //启动服务
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[root@docker nginx]# docker-compose stop //停止服务
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```
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