Upgrade Whitehall's base image to use Yarn 4 [WHIT-1954] #908
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eYinka
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Oct 24, 2025
Following the deprecation of Yarn 1.xx and 2.xx, we have upgraded Whitehall's base image to use Yarn v4. Consequently, flags like `--production` `--frozen-lockfile` have been removed. Associated PR: alphagov/govuk-docker#908 Flags: https://yarnpkg.com/cli/install
eYinka
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Oct 24, 2025
Following the deprecation of Yarn 1.xx and 2.xx, we have upgraded Whitehall's base image to use Yarn v4. Consequently, flags like `--production` `--frozen-lockfile` have been removed. Associated PR: alphagov/govuk-docker#908 Flags: https://yarnpkg.com/cli/install JIRA: https://gov-uk.atlassian.net/browse/WHIT-1954
eYinka
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Oct 24, 2025
Following the deprecation of Yarn 1.xx and 2.xx, we have upgraded Whitehall's base image to use Yarn v4. Consequently, flags like `--production` `--frozen-lockfile` have been removed. Associated PR: alphagov/govuk-docker#908 Flags: https://yarnpkg.com/cli/install JIRA: https://gov-uk.atlassian.net/browse/WHIT-1954
eYinka
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Oct 24, 2025
Following the deprecation of Yarn 1.xx and 2.xx, we have upgraded Whitehall's base image to use Yarn v4. Consequently, flags like `--production` `--frozen-lockfile` have been removed. Associated PR: alphagov/govuk-docker#908 Flags: https://yarnpkg.com/cli/install JIRA: https://gov-uk.atlassian.net/browse/WHIT-1954
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eYinka
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Oct 27, 2025
Following the deprecation of Yarn 1.xx and 2.xx, we have upgraded Whitehall's base image to use Yarn v4. Consequently, flags like `--production` `--frozen-lockfile` have been removed. Associated PR: alphagov/govuk-docker#908 Flags: https://yarnpkg.com/cli/install JIRA: https://gov-uk.atlassian.net/browse/WHIT-1954
eYinka
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Oct 27, 2025
Following the deprecation of Yarn 1.xx and 2.xx, we have upgraded Whitehall's base image to use Yarn v4. Consequently, flags like `--production` `--frozen-lockfile` have been removed. Associated PR: alphagov/govuk-docker#908 Flags: https://yarnpkg.com/cli/install JIRA: https://gov-uk.atlassian.net/browse/WHIT-1954
eYinka
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Oct 27, 2025
Following the deprecation of Yarn 1.xx and 2.xx, we have upgraded Whitehall's base image to use Yarn v4. Consequently, flags like `--production` `--frozen-lockfile` have been removed. Associated PR: alphagov/govuk-docker#908 Flags: https://yarnpkg.com/cli/install JIRA: https://gov-uk.atlassian.net/browse/WHIT-1954
eYinka
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Oct 27, 2025
Following the deprecation of Yarn 1.xx and 2.xx, we have upgraded Whitehall's base image to use Yarn v4. Consequently, flags like `--production` `--frozen-lockfile` have been removed. Associated PR: alphagov/govuk-docker#908 Flags: https://yarnpkg.com/cli/install JIRA: https://gov-uk.atlassian.net/browse/WHIT-1954
eYinka
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Oct 27, 2025
Following the deprecation of Yarn 1.xx and 2.xx, we have upgraded Whitehall's base image to use Yarn v4. Consequently, flags like `--production` `--frozen-lockfile` have been removed. Associated PR: alphagov/govuk-docker#908 Flags: https://yarnpkg.com/cli/install JIRA: https://gov-uk.atlassian.net/browse/WHIT-1954
matthillco
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Oct 28, 2025
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I've successfully built this docker image against the other PR in Whitehall. No errors and the app spins up fine.
I'm happy to approve this, nice work.
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projects/whitehall/Dockerfile
Outdated
| RUN apt-get update -qq && apt-get install -y yarn nodejs | ||
| RUN yarn config set cache-folder /root/.yarn/ | ||
| RUN apt-get update -qq && apt-get install -y nodejs | ||
| RUN corepack enable && yarn set version 4.10.3 |
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We generally try to avoid pinning to patch versions - I think I'd replace with this:
Suggested change
| RUN corepack enable && yarn set version 4.10.3 | |
| RUN corepack enable && yarn set version 4.x |
...or is this because it has to match the exact version specified in package.json?
(If they need to be in sync, I'd add an inline comment to that effect, in this Dockerfile ^
Or I wonder if there's something dynamic we can do... something like this (thanks ChatGPT!)...?
# Enable corepack, fetch Yarn version from Whitehall package.json, and install that exact version
RUN corepack enable && \
YARN_VERSION=$(curl -s https://raw.githubusercontent.com/alphagov/whitehall/main/package.json \
| jq -r '.packageManager' \
| sed -E 's/^yarn@//') && \
yarn set version "$YARN_VERSION"
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Setting as 4.x works and will pull the latest stable version of v4. Missed that from the docs earlier. Thanks @ChrisBAshton
The previous image uses an outdated version of Yarn (1.22.22). This commit has now upgraded the package to the latest stable version (4.10.3). We have also updated the cache folder config to follow the new method. See: - https://yarnpkg.com/cli/config/set - https://yarnpkg.com/configuration/yarnrc#cacheFolder
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eYinka
added a commit
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Oct 28, 2025
Following the deprecation of Yarn 1.xx and 2.xx, we have upgraded Whitehall's base image to use Yarn v4. Consequently, flags like `--production` `--frozen-lockfile` have been removed. Associated PR: alphagov/govuk-docker#908 Flags: https://yarnpkg.com/cli/install JIRA: https://gov-uk.atlassian.net/browse/WHIT-1954
MuriloDalRi
approved these changes
Oct 29, 2025
Contributor
|
Converted to draft. We've decided to hold off until there's support more widely - see issue on Platform Engineering board: alphagov/govuk-infrastructure#3068 |
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The previous image uses an outdated version of Yarn (1.22.22). This commit has now upgraded the package to the latest stable version (4.10.3). We have also updated the cache folder config to follow the new method. See:
JIRA: https://gov-uk.atlassian.net/browse/WHIT-1954