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CloudNative/Docker/docker-compose相关.md

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+常用命令
+```
+docker-compose up -d nginx                     构建建启动nignx容器
+
+docker-compose exec nginx bash            登录到nginx容器中
+
+docker-compose down                              删除所有nginx容器,镜像
+
+docker-compose ps                                   显示所有容器
+
+docker-compose restart nginx                   重新启动nginx容器
+
+docker-compose run --no-deps --rm php-fpm php -v  在php-fpm中不启动关联容器，并容器执行php -v 执行完成后删除容器
+
+docker-compose build nginx                     构建镜像 。        
+
+docker-compose build --no-cache nginx   不带缓存的构建。
+
+docker-compose logs  nginx                     查看nginx的日志 
+
+docker-compose logs -f nginx                   查看nginx的实时日志
+
+ 
+
+docker-compose config  -q                      验证（docker-compose.yml）文件配置，当配置正确时，不输出任何内容，当文件配置错误，输出错误信息。 
+
+docker-compose events --json nginx       以json的形式输出nginx的docker日志
+
+docker-compose pause nginx                 暂停nignx容器
+
+docker-compose unpause nginx             恢复ningx容器
+
+docker-compose rm nginx                       删除容器（删除前必须关闭容器）
+
+docker-compose stop nginx                    停止nignx容器
+
+docker-compose start nginx                    启动nignx容器
+```
+
+## yaml官方示例解析
+```
+version: "3.7"
+services:
+
+  ## 使用已有镜像redis:alpine
+  redis:
+    image: redis:alpine
+    ports:
+      - "6379"
+    networks:
+      - frontend
+    deploy:
+      replicas: 2
+      update_config:
+        parallelism: 2
+        delay: 10s
+      restart_policy:
+        condition: on-failure
+
+  db:
+    image: postgres:9.4
+    volumes:
+      - db-data:/var/lib/postgresql/data
+    networks:
+      - backend
+    deploy:
+      placement:
+        constraints: [node.role == manager]
+
+  vote:
+    image: dockersamples/examplevotingapp_vote:before
+    ports:
+      - "5000:80"
+    networks:
+      - frontend
+    depends_on:
+      - redis
+    deploy:
+      replicas: 2
+      update_config:
+        parallelism: 2
+      restart_policy:
+        condition: on-failure
+
+  result:
+    image: dockersamples/examplevotingapp_result:before
+    ports:
+      - "5001:80"
+    networks:
+      - backend
+    depends_on:
+      - db
+    deploy:
+      replicas: 1
+      update_config:
+        parallelism: 2
+        delay: 10s
+      restart_policy:
+        condition: on-failure
+
+  worker:
+    image: dockersamples/examplevotingapp_worker
+    networks:
+      - frontend
+      - backend
+    deploy:
+      mode: replicated
+      replicas: 1
+      labels: [APP=VOTING]
+      restart_policy:
+        condition: on-failure
+        delay: 10s
+        max_attempts: 3
+        window: 120s
+      placement:
+        constraints: [node.role == manager]
+
+  visualizer:
+    image: dockersamples/visualizer:stable
+    ports:
+      - "8080:8080"
+    stop_grace_period: 1m30s
+    volumes:
+      - "/var/run/docker.sock:/var/run/docker.sock"
+    deploy:
+      placement:
+        constraints: [node.role == manager]
+
+networks:
+  frontend:
+  backend:
+
+volumes:
+  db-data:
+      
+```
+### 说明：
+#### 容器不仅可以使用已有的镜像构建，还可以使用Dockerfile
+```
+## Dockerfile所在目录，可以是相对路径，也可以是绝对路径
+build: /path/to/dir
+build: ./dir
+build:
+  context: ../
+  dockerfile: path/of/Dockerfile
+```
+
+####