René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Related tasks for Alpine (musl) x64 promotion to Tier 2","articleBody":"## Current status\n\n[Platform list](https://github.com/nodejs/node/blob/main/BUILDING.md#platform-list) currently contains the following entry:\n\n| Operating System | Architectures | Versions                       | Support Type | Notes           |\n| ---------------- | ------------- | ------------------------------ | ------------ | --------------- |\n| GNU/Linux        | x64           | kernel >= 3.10, musl >= 1.1.19 | Experimental | e.g. Alpine 3.8 |\n\nOther architectures are unlisted, and have no designated support type.\n\n[Official binary platforms and toolchains](https://github.com/nodejs/node/blob/main/BUILDING.md#official-binary-platforms-and-toolchains) does not list any Alpine / musl build.\n\n`node` Docker images for Alpine are built from `https://unofficial-builds.nodejs.org/download/release/v\u003cnode-version>/node-v\u003cnode-version>-linux-x64-musl.tar.xz`\n- Alpine `x64` images are built using the `x64-musl` build directly\n- Alpine `arm64`, `arm32` and `s390x` images are built from source\n\nUpdate automation treats security releases differently and proceeds with these releases without waiting for musl build availability.\n\n## Proposed Node.js change\n\nPR https://github.com/nodejs/node/pull/63737 proposes the promotion of Alpine/x64 to Tier 2.\n\nThis can be expected to add Alpine/x64 to the [Platform list](https://github.com/nodejs/node/blob/main/BUILDING.md#platform-list) and to [Official binary platforms and toolchains](https://github.com/nodejs/node/blob/main/BUILDING.md#official-binary-platforms-and-toolchains).\n\nAn `x64-musl` build can be expected to be available through the regular https://nodejs.org/download/release/ website.\n\n## Impact\n\nExpected update tasks and impact will include:\n\n- [ ] Documentation [README](https://github.com/nodejs/docker-node#readme) references to support category and process\n- [x] [Dockerfile-alpine.template](https://github.com/nodejs/docker-node/blob/main/Dockerfile-alpine.template) to source the musl build from https://nodejs.org/download/release/\n- [x] [update.sh](https://github.com/nodejs/docker-node/blob/main/update.sh) script so that the `-s` (security) option does not exclude Alpine builds, or for more simplification, remove the `-s` option entirely, since it becomes a no-op\n- [x] [build-automation.mjs](https://github.com/nodejs/docker-node/blob/main/build-automation.mjs) remove checks against https://unofficial-builds.nodejs.org\n\n- [x] Review other Alpine-related issues and PR for relevance and applicability.\n","author":{"url":"https://github.com/MikeMcC399","@type":"Person","name":"MikeMcC399"},"datePublished":"2026-06-29T09:58:13Z","url":"https://github.com/nodejs/docker-node/issues/2550"}