jochen
c23be73d4d
The controller is a Go program and was the one piece of the mesh's own Go code still shipped and run as an image (novox/hq issue 213; ADR 0188 §1: a module's own code is bundles; §3: a service bundle is a process). The manifest now builds one Go bundle, `controller`, and runs it as the process `mesh-controller` (`./mesh-controller serve`) under an account the module declares. What the container gave it, replaced: - host network: a process is on the host's network; nothing it reads names a container network - user 65534: the account `mesh-controller`, which owns its secrets and its state directory - the eight mounts: the env names the host paths the mesh already places (the store, broker and bus files under the state directory, the broker's certificate under /var/lib/mesh-broker-tls); the `broker` mount was read by nothing and is gone with the others - `container-runtime` is no longer required on its machine Its preparation is the same binary with `prepare`, as a run-once process, and the process `replaces` the container `server`: the host keeps the container answering until the process is running (mesh-host). Needs the previous commit live in the running controller, and the host's `replaces` on the controller's machine, before it is registered. No image is built by the mesh any more. The Dockerfile stays for genesis and the lab (`make image`, its Go base now pinned in the Makefile).
142 lines
6.7 KiB
Makefile
142 lines
6.7 KiB
Makefile
# novox/hq ADR 0006 — the control plane, in Go.
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#
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# The image the bundle pins holds the program and nothing else, so the build is static and the
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# container is built FROM scratch. That is not a size optimisation: this image is fetched by
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# digest and run on a machine where no mesh exists to check anything, and everything in it is
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# something a person would have to audit.
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VERSION ?= $(shell git describe --tags --always --dirty 2>/dev/null || echo development)
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LDFLAGS := -s -w -X main.version=$(VERSION)
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# Where `make check` raises PostgreSQL. A high port and a throwaway container: nothing here
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# touches a database anybody else is using. Override PG_PORT if this one is taken -- the first
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# port chosen was already serving something that had been up for six days.
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PG_PORT ?= 55532
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PG_CONTAINER ?= mesh-controller-check
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PG_IMAGE ?= postgres:17-alpine
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export MESH_TEST_POSTGRES ?= postgres://postgres:check@127.0.0.1:$(PG_PORT)/postgres?sslmode=disable
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.PHONY: build image check test vet fmt postgres postgres-stop clean
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build:
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CGO_ENABLED=0 go build -trimpath -ldflags '$(LDFLAGS)' -o build/mesh-controller ./cmd/mesh-controller
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# Tagged 'development' as well as by version, because the lab places images by name and a
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# scenario naming a version would have to be edited on every build. The version tag is what a
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# real bundle pins.
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IMAGE ?= mesh-controller:$(VERSION)
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DEV_TAG ?= mesh-controller:development
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# The Go base the image is built on.
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#
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# **`make image` was broken and stayed broken**, because the Dockerfile's fallback base was a Go
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# older than go.mod asks for: every build died at `go mod download` with "go.mod requires go >=
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# 1.26.0", and the pipeline never saw it because the pipeline passes the declared base in. Anybody
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# building the image by hand hit it and had to find the digest themselves (novox/hq 04-ISSUES/146,
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# what it cost).
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#
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# **Pinned here since the manifest stopped building an image** (novox/hq issue 213): the mesh builds
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# the controller as a Go bundle with its own toolchain, and only `make image` — genesis and the lab —
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# still needs a Go base. The digest is the one the manifest declared until then.
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GO_BASE ?= golang@sha256:8ac98ca534ac3f51e1f420a1dd2c15e74c75cfa0f23f3ad27eb5d7236c349a0c
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image:
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@test -n "$(GO_BASE)" || { echo "no GO_BASE; pass GO_BASE=<image>"; exit 1; }
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docker build --build-arg GO_BASE=$(GO_BASE) --build-arg VERSION=$(VERSION) -t $(IMAGE) -t $(DEV_TAG) .
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@echo
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@docker image inspect $(IMAGE) --format 'built {{.RepoTags}} {{.Size}} bytes'
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# The builder ships as an image too, because it is a module the mesh assigns rather than a program
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# somebody starts on a machine by hand.
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BUILDER_IMAGE ?= mesh-builder:$(VERSION)
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BUILDER_DEV_TAG ?= mesh-builder:development
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builder-image:
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@test -n "$(GO_BASE)" || { echo "no GO_BASE; pass GO_BASE=<image>"; exit 1; }
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docker build --build-arg GO_BASE=$(GO_BASE) -f cmd/mesh-builder/Dockerfile -t $(BUILDER_IMAGE) -t $(BUILDER_DEV_TAG) .
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@echo
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@docker image inspect $(BUILDER_IMAGE) --format 'built {{.RepoTags}} {{.Size}} bytes'
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# The provisioner ships as an image too, because it is the thing that makes a sealed credential
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# true on a machine -- and the mesh cannot, having discarded the plaintext.
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PROVISIONER_IMAGE ?= mesh-provision-postgres:$(VERSION)
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PROVISIONER_DEV_TAG ?= mesh-provision-postgres:development
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provisioner-image:
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docker build --build-arg GO_BASE=$(GO_BASE) -f examples/postgres-provisioner/Dockerfile \
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-t $(PROVISIONER_IMAGE) -t $(PROVISIONER_DEV_TAG) .
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@echo
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@docker image inspect $(PROVISIONER_IMAGE) --format 'built {{.RepoTags}} {{.Size}} bytes'
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# The object store's provisioner, for the same reason: a bucket and a policy are not files, and
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# the mesh cannot make them -- it discarded the credential it would have to use.
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OBJECTSTORE_IMAGE ?= mesh-provision-objectstore:$(VERSION)
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OBJECTSTORE_DEV_TAG ?= mesh-provision-objectstore:development
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objectstore-image:
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docker build --build-arg GO_BASE=$(GO_BASE) -f examples/objectstore-provisioner/Dockerfile \
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-t $(OBJECTSTORE_IMAGE) -t $(OBJECTSTORE_DEV_TAG) .
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@echo
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@docker image inspect $(OBJECTSTORE_IMAGE) --format 'built {{.RepoTags}} {{.Size}} bytes'
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# The cache's provisioner, for the same reason as the database's: an ACL user is not a file,
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# and the mesh cannot make one -- it discarded the credential it would have to use.
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REDIS_PROVISIONER_IMAGE ?= mesh-provision-redis:$(VERSION)
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REDIS_PROVISIONER_DEV_TAG ?= mesh-provision-redis:development
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redis-provisioner-image:
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docker build --build-arg GO_BASE=$(GO_BASE) -f examples/redis-provisioner/Dockerfile \
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-t $(REDIS_PROVISIONER_IMAGE) -t $(REDIS_PROVISIONER_DEV_TAG) .
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@echo
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@docker image inspect $(REDIS_PROVISIONER_IMAGE) --format 'built {{.RepoTags}} {{.Size}} bytes'
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# The proxy that turns a route grant into traffic reaching a workload.
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PROXY_IMAGE ?= mesh-route-proxy:$(VERSION)
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PROXY_DEV_TAG ?= mesh-route-proxy:development
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proxy-image:
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docker build --build-arg GO_BASE=$(GO_BASE) -f examples/route-proxy/Dockerfile -t $(PROXY_IMAGE) -t $(PROXY_DEV_TAG) .
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@echo
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@docker image inspect $(PROXY_IMAGE) --format 'built {{.RepoTags}} {{.Size}} bytes'
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# The whole gate. Raises a database, runs everything against it, and takes it down again --
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# including when the tests fail, which is why the teardown is not conditional.
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#
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# **One package at a time (-p 1), and it is not about speed.** The live tests reach one bus, and on
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# it they assert, read and remove the mesh's own objects -- streams and consumers with fixed names,
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# because those names are the mesh's and a test cannot choose others. Two packages doing that at once
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# is one deleting a consumer the other is reading through, and the failure lands in whichever test
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# was reading, as "no response from stream". That reads as a bug in the code under test.
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check: fmt vet postgres
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@go test -p 1 ./... ; status=$$? ; $(MAKE) postgres-stop ; exit $$status
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# Without a database the live tests skip rather than fail, so this is the honest subset and not
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# the gate. Serialised for the same reason check is: a bus may be configured even when a store is not.
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test:
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go test -p 1 ./...
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vet:
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go vet ./...
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fmt:
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@unformatted=$$(gofmt -l . 2>/dev/null) ; \
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if [ -n "$$unformatted" ] ; then echo "not gofmt'd:" ; echo "$$unformatted" ; exit 1 ; fi
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postgres:
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@docker rm -f $(PG_CONTAINER) >/dev/null 2>&1 || true
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@docker run -d --name $(PG_CONTAINER) -e POSTGRES_PASSWORD=check \
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-p 127.0.0.1:$(PG_PORT):5432 $(PG_IMAGE) >/dev/null
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@printf 'waiting for postgres'
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@for i in $$(seq 1 60) ; do \
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if docker exec $(PG_CONTAINER) pg_isready -U postgres >/dev/null 2>&1 ; then \
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echo ' — ready' ; exit 0 ; fi ; \
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printf '.' ; sleep 1 ; \
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done ; \
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echo ' — never came up' ; docker logs $(PG_CONTAINER) | tail -20 ; exit 1
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postgres-stop:
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@docker rm -f $(PG_CONTAINER) >/dev/null 2>&1 || true
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clean:
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rm -rf build/
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