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make image reads its base from the manifest

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It was broken and stayed broken: the Dockerfile's fallback base is a Go older
than go.mod asks for, so every hand build died at 'go mod download' with
'go.mod requires go >= 1.26.0'. The pipeline never saw it because the pipeline
passes the declared base in, so the cost fell entirely on whoever built the
image themselves and had to find the digest by hand (novox/hq 04-ISSUES/146).

Read from module.json rather than written here as well, so the two cannot
disagree, and refused outright if the manifest declares none.
This commit is contained in:
jschoubben
2026-09-29 17:45:11 +02:00
parent e5c2eb20f2
commit bc31745607
1 changed files with 13 additions and 2 deletions
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Makefile
+13 -2
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@@ -27,8 +27,18 @@ build:
IMAGE ?= mesh-controller:$(VERSION)
DEV_TAG ?= mesh-controller:development
# The base the module declares, read from the manifest rather than written here twice.
#
# **`make image` was broken and stayed broken**, because the Dockerfile's fallback base was a Go
# older than go.mod asks for: every build died at `go mod download` with "go.mod requires go >=
# 1.26.0", and the pipeline never saw it because the pipeline passes the declared base in. Anybody
# building the image by hand hit it and had to find the digest themselves (novox/hq 04-ISSUES/146,
# what it cost).
GO_BASE ?= $(shell python3 -c "import json;print(next(o['image'] for o in json.load(open('module.json'))['build']['on'] if o['arg']=='GO_BASE'))" 2>/dev/null)
image:
docker build --build-arg VERSION=$(VERSION) -t $(IMAGE) -t $(DEV_TAG) .
@test -n "$(GO_BASE)" || { echo "module.json declares no GO_BASE; pass GO_BASE=<image> or fix the manifest"; exit 1; }
docker build --build-arg GO_BASE=$(GO_BASE) --build-arg VERSION=$(VERSION) -t $(IMAGE) -t $(DEV_TAG) .
@echo
@docker image inspect $(IMAGE) --format 'built {{.RepoTags}} {{.Size}} bytes'
@@ -38,7 +48,8 @@ BUILDER_IMAGE ?= mesh-builder:$(VERSION)
BUILDER_DEV_TAG ?= mesh-builder:development
builder-image:
docker build -f cmd/mesh-builder/Dockerfile -t $(BUILDER_IMAGE) -t $(BUILDER_DEV_TAG) .
@test -n "$(GO_BASE)" || { echo "module.json declares no GO_BASE; pass GO_BASE=<image> or fix the manifest"; exit 1; }
docker build --build-arg GO_BASE=$(GO_BASE) -f cmd/mesh-builder/Dockerfile -t $(BUILDER_IMAGE) -t $(BUILDER_DEV_TAG) .
@echo
@docker image inspect $(BUILDER_IMAGE) --format 'built {{.RepoTags}} {{.Size}} bytes'