Clone repository in container volume / docker compose / path to repository

[aheissenberger]

Problem:

• devcontainer and docker-composer.yml starting the container has no information about the path to /workspaces/xxxx which is used to mount the cloned source code
• See .devcontainer/lsyncd.conf:7 the directory should not be hard coded to /workspaces/xx: source="/workspaces/vscode-remote-test-1",

use case
sync the mounted /workspaces/xxxxx from the dev container to other container with lsyncd

steps to reproduce

• Clone repository in container volume https://github.com/aheissenberger/vscode-remote-clone-repo-docker-compose

• create a new volume every time - (currently only works with named volume vscode-remote-test-1 with target directory vscode-remote-test-1 - paths os hard coded!)

• the .devcontainer folder with dock-compose.yml will start the dev container and a sample phpapache container

• need to provide the path to the mounted volume including the random subdirectory (e.g. /workspaces/xxxxx) to the dev container as an environment variable

[chrmarti]

Related: #3034