The newvolumeskey mounts the project directory (current directory) on the host to/codeinside the container, allowing you to modify the code on the fly, without having to rebuild the image. Theenvironmentkey sets
下面是一个示例 docker-compose.yml 文件,它依赖于.env文件提供的值来设置未来容器的环境变量: version: '3' services: example: image: ubuntu environment: - env_var_name=${VARIABLE_NAME} # here it is! 提示:使用 .env 文件时,您可以使用单个命令调试 docker-compose.yml 文件。输入docker-compose config。
Not sure what the syntax would be exactly, but I would like to supply an optional and variable set of devices to an docker-compose.yml service. Seems more flexible if the variable is a string and literally substituted, but maybe shell array variables should be used instead. DEVICES= # empt...
当在Docker Compose的YAML文件中定义环境变量时,每个环境变量应该是唯一的。Docker Compose在解析YAML文件时会检查环境变量的定义,如果发现有重复的环境变量,就会抛出environment array items[0,4] must be unique的错误。 以下是一个示例的Docker Compose文件: version:'3'services:web:image:nginxenvironment:-ENV_VAR...
在docker-compose.yml文件中定义你的服务和容器。例如,假设你有一个名为"myapp"的服务,它使用了一个环境变量来存储一个json数组。 在上面的示例中,"JSON_ARRAY"是你要修改的环境变量,它存储了一个json数组。 保存docker-compose.yml文件,并在终端中导航到该文件所在的目录。 运行以下命令来启动你的服务:...
Legacy versions 2.x and 3.x of the Compose file format were merged into the Compose Specification. It is implemented in versions 1.27.0 and above (also known as Compose V2) of the Docker Compose CLI. The Compose Specification on Docker Docs is the Docker Compose implementation. If you wish...
步骤二:修改docker-compose文件 使用你喜欢的编辑器打开docker-compose.yaml文件,并修改你需要更新的配置项。例如,如果你想要修改某个服务的环境变量,可以按照以下格式修改: services: your_service_name: environment:-VARIABLE_NAME=NEW_VALUE 1. 2. 3.
Variable substitution 代码语言:javascript 代码运行次数:0 运行 AI代码解释 db: image: "postgres:${POSTGRES_VERSION}" 从.env 文件或系统变量中读取变量,来替换 compose 文件中的变量。 docker stack deploy 不支持变量读取。 $VAR ${VAR} 这两种格式都支持。 ${VARIABLE:-default} 如果VARIABLE 被unset 或为...
In this case Compose relies on you to resolve the value. If the value is not resolved, the variable is unset and is removed from the service container environment. Map syntax: environment: RACK_ENV: development SHOW: "true" USER_INPUT:...
Provider.options can be an array by@ndeloofin#12819 Set provider environment by@ndeloofin#12817 Add support ofdebugmessages in the communication between Compose … by@gloursin#12826 Introduce config--lock-image-digestsby@ndeloofin#12843 🐛 Fixes ...