当 docker-compose 卷中的文件在 Dockerfile 中可用时？

Question

I have docker-compose file looking similar to:

version: '3'
services:
  my_service:
    build:  
      context: ./my_service
    ports:
      - $SERVICE_HTTP_PORT:1234
    volumes:
      - $PATH_TO_FILE:/usr/local/share/ca-certificates/root.ca.crt

Then inside docker file I have following line: RUN chmod 644 /usr/local/share/ca-certificates/root.ca.crt && update-ca-certificates

but that yields that there is no such file. As far as I understand that probably it is not available at that moment yet, but couldn't find any documentation for that.

Answer 1

由于卷不是生成的图像本身的一部分，因此您无法在 Dockerfile 中写入它们

Answer 2

您必须将该命令写入 docker-compose 文件中

command: bash -c "chmod 644 /usr/local/share/ca-certificates/root.ca.crt && update-ca-certificates"