Docker-compose命令-config

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命令

docker-compose config

描述

Validate and view the Compose file
验证并查看Compose文件

用法

1
config [options]

选项

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Options:
  --resolve-image-digests  Pin image tags to digests.
  --no-interpolate         Don't interpolate environment variables.
  -q, --quiet              Only validate the configuration, don't print anything.
  --services               Print the service names, one per line.
  --volumes                Print the volume names, one per line.
  --hash="*"               Print the service config hash, one per line.
                           Set "service1,service2" for a list of specified services
                           or use the wildcard symbol to display all services.

注意

无

示例

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# 报错提示
$  docker-compose config
ERROR: yaml.parser.ParserError: while parsing a block mapping
  in "./docker-compose.yml", line 1, column 1
expected <block end>, but found '<block mapping start>'
  in "./docker-compose.yml", line 2, column 3
$ docker-compose config
ERROR: Named volume "demo-logs:/logs:rw" is used in service "demo" but no declaration was found in the volumes section.

# 显示服务名称
$ docker-compose config --services
demo
# 显示存储卷名称
$ docker-compose config --volumes
demo-logs
# 显示当前compose配置文件中所有服务的md5值
$ docker-compose config --hash="*"
demo d84b3c9a8aa196e1538fb9c9ccc09644dca20c91f76c88399e75f08d42db7b5f
# 目录结构
$ tree
├── data
│   └── demo.txt
├── docker-compose.yml
└── Dockerfile
$ cat Dockerfile
FROM alpine:3.13
RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
CMD ["/bin/bash"]
# compose配置文件内容
$ cat docker-compose.yml
version: "3.8"
services:
  demo:
    build: .
    image: demo:1.1.0
    restart: always
    volumes:
      - ./data:/data
      - demo-logs:/logs
volumes:
  demo-logs:
# 查看并格式化显示compose配置文件
$ docker-compose config
services:
  demo:
    build:
      context: /root/demo
    image: demo:1.1.0
    restart: always
    volumes:
    - /root/demo/data:/data:rw
    - demo-logs:/logs:rw
version: '3.8'
volumes:
  demo-logs: {}