从前面的部分中我们可以看到,docker compose 提供了足够的灵活性来让我们设置 docker-compose.yml 文件中引用的环境变量,它们的优先级如下: Compose file Shell environment variables Environment file Dockerfile Variable is not defined 首先,在 docker-compose.yml 文件中直接设置的值优先级是最高的。 然后是在当前...
https://docs.docker.com/compose/environment-variables/envvars-precedence/ The order of precedence (highest to lowest) is as follows: Set usingdocker compose run -ein the CLI Substituted from yourshell Set using theenvironmentattribute in the Compose file Use of the--env-fileargumentin the CLI U...
如果觉得通过 environment 为容器设置环境变量不够过瘾,我们还可以像 docker -run 的 --env-file 参数一样通过文件为容器设置环境变量: web: env_file:- web-variables.env 注意,web-variables.env 文件的路径是相对于 docker-compose.yml 文件的相对路径。上面的代码效果与下面的代码相同: $ docker run --env-...
How environment variable precedence works within your container's environment. Pre-defined environment variables. It also covers: Howinterpolationcan be used to set variables within your Compose file and how it relates to a container's environment. ...
问如何在docker-compose子Dockerfile FROM子句中使用环境变量ENFROM 指明当前的镜像基于哪个镜像构建 docker...
如果未指定,Compose会先在当前目录中查找docker-compose.yml文件,找不到就依次在上层目录中查找,直到找到为止,如果找不到会报错。此变量支持由路径分隔符分隔的多个Compose文件(在Linux和macOS上路径分隔符为:,在Windows上为;)。例如,COMPOSE_FILE=docker-compose.yml:docker-compose.prod.yml。路径分隔符也可以使用...
docker-compose config 内容如下: yhm@:~/myserver/test<master>$ docker-compose config services: ubuntu-001: build: context: /home/yhm/myserver/test/ubuntu dockerfile: Dockerfile args: GROUP_ID: "1000" USERNAME_ID: "1000" container_name: mytest-001 environment: SYNC_GROUP: yhm SYNC_USERNAME...
一、docker compose 服务依赖 使用depends_on关键字 version: services:flask: build: - REDIS_HOST= - REDIS_PASS= healthcheck: test: ["CMD", "curl", "-f", "localhost:5000"] interval: 30s timeout: 3s retries: 3 start_period: 40s - redis-server networks: - backend - frontend networks...
Docker Compose是一个用于定义和运行多个Docker容器的工具。它允许我们使用YAML文件来配置应用程序的服务、网络和卷等方面的设置。在Docker Compose中,我们可以使用环境变量...
Pre-defined environment variables Set or change pre-defined environment variables in Docker Compose Compose already comes with pre-defined environment variables. It also inherits common Docker CLI environment variables, such as DOCKER_HOST and DOCKER_CONTEXT. See Docker CLI environment variable reference ...