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devcontainer: pin docker-in-docker to 2.x (fix arm64 prebuild) #92

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Merged
bilby91 merged 1 commit into from
Jun 12, 2026
Merged

devcontainer: pin docker-in-docker to 2.x (fix arm64 prebuild) #92

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19 changes: 11 additions & 8 deletions .devcontainer/devcontainer-build.json
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Original file line number Diff line number Diff line change
Expand Up @@ -14,14 +14,17 @@
"version": "1.26"
},
"ghcr.io/devcontainers/features/github-cli:1": {},
"ghcr.io/devcontainers/features/docker-in-docker:1": {
// "none" skips the legacy `docker-compose` (hyphen) command entirely.
// The repo only uses `docker compose` v2 (runtime/docker/compose.go:
// "legacy docker-compose is not supported"), and the v2 plugin is
// installed separately via the moby-compose package regardless of this
// option. Avoiding the hyphen command is what unblocks arm64: the
// released feature installs Compose v1 there via a global `pip install`,
// which fails on bookworm under PEP 668 (externally-managed-environment).
"ghcr.io/devcontainers/features/docker-in-docker:2": {
// Pin to the 2.x major: ":1" is a stale frozen image (the feature has
// no 1.x releases anymore — current is 3.x) whose old script runs a
// global `pip install docker-compose` on bookworm/arm64 and fails under
// PEP 668 (externally-managed-environment). 2.x gates that whole block
// behind `dockerDashComposeVersion != none`.
//
// "none" skips the legacy `docker-compose` (hyphen) command entirely;
// the repo only uses `docker compose` v2 (runtime/docker/compose.go:
// "legacy docker-compose is not supported"), and the v2 plugin ships
// separately via the moby-compose package regardless of this option.
"dockerDashComposeVersion": "none"
},
"ghcr.io/rocker-org/devcontainer-features/apt-packages:1": {
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