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fix(ci): disable Compose bake backend for devcontainer build #330

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ro80t merged 2 commits into from
Oct 8, 2026
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fix(ci): disable Compose bake backend for devcontainer build #330

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fix(ci): disable compose bake backend for devcontainer build
ro80t Oct 8, 2026
6531186
fix(ci): pin devcontainer to ubuntu-24.04 to prevent issues with Comp…
ro80t Oct 8, 2026
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11 changes: 10 additions & 1 deletion .github/workflows/ci.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -281,7 +281,10 @@ jobs:

devcontainer:
name: Dev Container
runs-on: ubuntu-latest
# Pinned (not ubuntu-latest): Compose v5 removes the internal builder entirely, so
# COMPOSE_BAKE: "false" below stops working once the runner image moves to it --
# ubuntu-latest is scheduled to migrate to Ubuntu 26.04 (ships Compose 5.1.3).
runs-on: ubuntu-24.04
if: github.event_name == 'push' || (github.event_name == 'pull_request_target' && github.event.pull_request.head.repo.full_name != github.repository) || (github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository)
permissions:
contents: read
Expand All @@ -308,6 +311,12 @@ jobs:

- name: Build
uses: devcontainers/ci@v0.3
env:
# Compose's buildx-bake backend sandboxes file reads outside the build context;
# devcontainers/cli's generated Features Dockerfile lives under /tmp, so bake
# rejects it with "additional privileges requested: pass --allow=fs.read=...".
# Forcing the legacy (non-bake) build backend avoids that entitlement check.
COMPOSE_BAKE: "false"
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with:
cacheFrom: ${{ steps.img.outputs.name }}
push: ${{ (github.event_name == 'push' && github.ref == 'refs/heads/main') && 'always' || 'never' }}
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