git_readme_devcontainers.md

Commands

VSCode

• wsl settings
• careful, don't think it was the devdrive
• but the setting inside docker engine on windows

wsl Docker vscode

• probably because it's forwarding from wsl...
• resources
  • advanced
    • can change the ext.vhdx location here
  • wsl integration
    • Enable default

Defaults

• user is vscode
• pwd is /workspaces/devcontainer
  • pwd is /workspaces/<folder_project_name>

Files

tree .devcontainer .vscode
code .devcontainer/devcontainer.json\
[devcontainers.reference](https://containers.dev/implementors/json_reference/)
[devcontainers.Dockerfile](https://containers.dev/guide/dockerfile)
[devcontainers.features](https://containers.dev/features)

pnpm add -g @devcontainers/cli
# https://containers.dev/guide/prebuild
# devcontainer build --workspace-folder . --push true --image-name <my_image_name>:<optional_image_version
docker image prune -f
docker container prune -f
devcontainer --help
devcontainer build --help
devcontainer build --workspace-folder . --image-name jchan48h/devcontainer:dev
docker push jchan48h/devcontainer:dev
docker container stop $(docker container ls -aq) # stop all containers
docker container prune -f # remove all containers

devcontainer up --help
devcontainer up --workspace-folder .
devcontainer up --id-label name=val --workspace-folder . 
#------
# have to ctrl c... to get out
devcontainer up --id-label name=val --workspace-folder . --remove-existing-container # force
docker exec -it $(docker ps -q) 
devcontainer exec --help
# oh taht's what -label-id is for
# re-eventing the wheel
devcontainer exec --id-label name=val --workspace-folder . "zsh"
cat /home/vscode/hello.txt
sudo cat /root/hello.txt
exit 

# devcontainer down --help # doesnt exist
# devcontainer set-up # setup as 

* todo - make a devcontainer for showing commands jupyter like
## build
* --workspace-folder .
* --config expects `.devcontainer/devcontainer.json`
```bash
#!pwsh.exe
devcontainer build --workspace-folder . --image-name jchan48h/devcontainer:dev

devcontainer build --workspace-folder . --image-name jchan48h/devcontainer:dev --push true

docker push jchan48h/devcontainer:dev

up

#!pwsh.exe
devcontainer up --workspace-folder .

Fast Devcontainer Build

# faster to not run the devcontainer with vscode when testing
docker image prune -f
devcontainer build --workspace-folder . --image-name jchan48h/devcontainer:dev
# same hash build and up... which make sit easy to find i guess
# too many danglign iamges wth
devcontainer up --workspace-folder .
# devcontainer up with name

docker run -it --rm jchan48h/devcontainer:dev
# check shell
tree /workspace
./test/tests/smoke.bats
uname -a
# ohh it didnt mount?
exit

# duplicate vscode project in new window
code --new-window .

Features

Git and VS Code Dev Containers

• "name" - Specifies a display name for the dev container.

• "image" - Defines the base Docker image to use for the container.

• "postCreateCommand" - Shell commands to run after the container is created. Often used to install additional tools.

• "settings" - Configures VS Code settings to use in the container, like the shell.

• "extensions" - Lists any VS Code extensions to install in the container.

• "onCreateCommand" - Shell command to run when container first starts.

• "appPort" - Port number to expose for web app access.

• "remoteUser" - Username for the container if not wanting to run as root.

• "mounts" - To mount local filesystem directories into the container.

• "runArgs" - Lets you pass extra args to the docker run command.

• "forwardPorts" - For forwarding additional ports from container to local.

• "postStartCommand" - Script to run every time after the container starts.

• "overrideCommand" - Replaces default container entrypoint/command.

{

  "name": "Fedora",

  "image": "fedora:latest",

  "postCreateCommand": "dnf install -y git bash-completion findutils",

  "settings": {
    "terminal.integrated.shell.linux": "/bin/bash"
  },

  "extensions": [
    "username.extension"
  ],

  "onCreateCommand": "/usr/bin/bash"
}

{
  "name": "Alpine",
  
  "image": "alpine:latest",
  
  "postCreateCommand": "apk add --no-cache git openssh-client bash",
  
  "settings": {
    "terminal.integrated.shell.linux": "/bin/bash"
  },

  "extensions": [
    "username.extension"
  ],

  "onCreateCommand": "/bin/bash"
}

interesting...

{
  "name": "Debian",
  
  "image": "debian:latest",
   
  // Install helpers 
  "postCreateCommand": "apt-get update && apt-get install -y git build-essential procps",
  
  "extensions": [
    "username.extension"
  ],

  "settings": {
    "terminal.integrated.shell.linux": "/bin/bash"
  },

  "onCreateCommand": "/usr/bin/bash"
}