docker - 使用docker-compose up时访问docker-compose.yml文件内的环境变量

Question

!尝试使以下内容起作用docker-compose.yml:

version: "3.3"

services:
  node:
    image: node:$CUSTOM_NODE_VERSION
    environment:
      - NODE_ENV=test
    entrypoint: ["npm", "run", "lint"]

尝试启动时:

$ docker-compose -f docker-compose.yml up --remove-orphans --force-recreate --abort-on-container-exit
The CUSTOM_NODE_VERSION variable is not set. Defaulting to a blank string.
no such image: node:: invalid reference format

我从 .gitlab-ci.yml开始:

Node:
  stage: Node
  script:
    - echo $CUSTOM_NODE_VERSION
    - docker-compose -f docker-compose.lint.yml up --remove-orphans --force-recreate --abort-on-container-exit

没什么好看的。有谁知道我如何访问 docker-compose.yml文件中的$ CUSTOM_NODE_VERSION变量？可能吗

Answer 1

您可能没有导出变量。这样做虽然应该可以:

CUSTOM_NODE_VERSION=10 docker-compose -f docker-compose.lint.yml up --remove-orphans --force-recreate --abort-on-container-exit