Docker-compose命令-exec

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命令

docker-compose exec

描述

Execute a command in a running container
在运行的容器中执行命令

用法

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exec [options] [-e KEY=VAL...] SERVICE COMMAND [ARGS...]

选项

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Options:
  -d, --detach      Detached mode: Run command in the background.
  --privileged      Give extended privileges to the process.
  -u, --user USER   Run the command as this user.
  -T                Disable pseudo-tty allocation. By default `docker-compose exec` allocates a TTY.
  --index=index     index of the container if there are multiple instances of a service [default: 1]
  -e, --env KEY=VAL  Set environment variables (can be used multiple times, not supported in API < 1.25)
  -w, --workdir DIR  Path to workdir directory for this command.

注意

无

示例

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# 交互方式进入容器sh命令行,注意部分镜像没有内置bash,如alpine
$ docker-compose exec demo sh
/ # ls /usr/share/nginx/html/
demo.txt    index.html
/ # cat /usr/share/nginx/html/index.html
demo
# 非交互式执行容器中的命令
$ docker-compose exec demo cat /usr/share/nginx/html/index.html
demo
# 如果有特殊字符需要使用如下方式执行,sh -c 'cmd'
$ docker-compose exec demo sh -c 'echo test > /usr/share/nginx/html/index.html'
# 验证
$ curl localhost
test