copy files from docker container to host, or mirror a folder-CodePudding

I have this docker-compose:

version: "3.9"

services:
  myserver:
    image: <some image>
    restart: always
    volumes:
      - ./res:/tmp/configs
      - ./myfolder:/tmp/logs

Should I expect to see the files that are in /tmp/logs inside the container, in the host folder 'myfolder'? 'myfolder' is empty and I want it to be updated with the contents of the /tmp/logs folder in the container.

CodePudding user response：

For formatting purposes, I post this as an answer instead of comment.

Can you put following in test.sh on the host?

#!/usr/bin/env bash

testdir=/tmp/docker-compose

rm -rf "$testdir"; mkdir -p "$testdir"/{myfolder,res}
cd "$testdir"

cat << EOF > docker-compose.yml
version: "3.9"

services:
  myserver:
    image: debian
    restart: always
    volumes:
      - ./res:/tmp/configs
      - ./myfolder:/tmp/logs
    command: sleep inf
EOF

docker-compose up

and run bash test.sh on the host and see if it works. host dir is /tmp/docker-compose/myfolder.

CodePudding user response：

What worked for me is using full path for the host path.

C:\myfolder for example.