Allow moby-compose and docker-compose-plugin versions to be specified in devcontainer.json for Docker in Docker #841
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… in devcontainer.json This changeset allows users to specify the versions of the docker-compose-plugin and moby-compose packages to be installed as part of the docker-in-docker devcontainer feature. This is provided as a way to allow users to pin the underlying versions of these packages in cases where newer versions may not be working or available Also included in this changeset is a refactor of the way package versions are discovered to ensure the process is consistent and DRY
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@samruddhikhandale Per our earlier conversation, here's a starting place for a package-installation refactor. This also applies the same configuration to I haven't tested this PR yet, so I'm curious to see what the workflow run says about it. Feel free to make changes to this PR yourself or request changes from me - I mostly put this together to scratch my own itch :) |
sayhiben
changed the title
| cli_version_suffix=get_package_version_suffix "${cli_package_name}" "${DOCKER_VERSION}" | ||
| required_packages="${cli_package_name}${cli_version_suffix} ${engine_package_name}${engine_version_suffix}" | ||
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| # Moby always uses buildx |
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I don't think so!
Reasoning :buildx is a Docker CLI plugin that extends the docker build command with the full support of the features provided by Moby BuildKit builder toolkit. However, buildx is not the default build engine for Docker or Moby. The default builder in Docker is still the legacy docker build command. To use buildx, you need to either install it as a Docker CLI plugin or use a version of Docker that has buildx bundled with it (Docker 19.03 and later versions).
So, while Moby and Docker can use buildx for building images, it's not always used and depends on the specific configuration and version of Docker you're using.
(Feel free to correct if I have misunderstood)
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| if [ -z "${package_version_suffix}" ] || [ "${package_version_suffix}" = "=" ]; then | ||
| err "No full or partial ${package_name} version match found for \"${package_version}\" on OS ${ID} ${VERSION_CODENAME} (${architecture}). Available versions:" | ||
| apt-cache madison ${package_name} | awk -F"|" '{print $2}' | grep -oP '^(.+:)?\K.+' |
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Will this still echo to the log from within this function, or does it need to be redirected to stderr?
| @@ -50,6 +45,16 @@ | |||
| "type": "boolean", | |||
| "default": true, | |||
| "description": "Install Docker Buildx" | |||
| }, | |||
| "mobyBuildxVersion": { | |||
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Can we add test scenarios to validate/massage these two options? thanks!
| local package_version_regex="^(.+:)?${package_version_dot_plus_escaped}([\\.\\+ ~:-]|$)" | ||
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| set +e # Catch errors so we can show more useful output | ||
| local package_version_suffix="=$(apt-cache madison ${package_name} | awk -F"|" '{print $2}' | sed -e 's/^[ \t]*//' | grep -E -m 1 "${package_version_regex}")" |
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Nit: Can we indent all the code in between set commands for better code readability?
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Sure thing. I typically don't consider set +e a scope, so I find the style a little confusing personally. Is there a bash styleguide this repo follows?
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Is there a bash styleguide this repo follows?
I don't think there's a specific guide that we follow for this repo, trying to follow the historical stylings of these files (as well as happy to learn some new and standard styles) 😬
| apt-get -y install --no-install-recommends docker-compose-plugin || echo "(*) Package docker-compose-plugin (Docker Compose v2) not available for OS ${ID} ${VERSION_CODENAME} (${architecture}). Skipping." | ||
| # Install required packages (engine, CLI, and moby-buildx if moby) | ||
| set +e | ||
| apt-get -y install --no-install-recommends ${required_packages} |
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Same indent comment here..
Co-authored-by: Samruddhi Khandale <samruddhikhandale@github.com>
This changeset allows users to specify the versions of the docker-compose-plugin and moby-compose packages to be installed as part of the docker-in-docker devcontainer feature. This is provided as a way to allow users to pin the underlying versions of these packages in cases where newer versions may not be working or available
Also included in this changeset is a refactor of the way package versions are discovered to ensure the process is consistent and DRY
(Motivations for this change in #838 + #837)