jschoubben
8c4a478b09
Converted from the arrangement being replaced, in its shapes rather than theirs. The registry is the manifest the lab already proved, promoted: names its image by digest and is never built (04-ISSUES/029), provides the artifact store, claims it once per machine. Redis is the third provision after a database and a bucket, and the first whose tenancy is a pattern in a shared keyspace rather than a namespace something else enforces. Its provisioner mirrors the postgres one's contract line for line — the manifest, the sealed per-consumer files, the mark, the withdrawal of orphans — and speaks RESP directly: five commands are needed, and a client library large enough to hide them would be most of the program's size. A prefix Redis would read as a pattern is refused, because the grant must mean what the manifest said; grants are persisted with ACL SAVE, or said loudly, because a cache that forgets its tenants on restart reports success until then. Umami asks the mesh for its database and a generated app secret, and carries no state of its own — the arrangement being replaced ran a bundled second postgres beside it. Grafana keeps its dashboards in a declared directory with the image's own owner. Both listen on 3000, as does the forge — which is the mesh's port assignment earning its keep. Traefik is deliberately not converted: the mesh's route provider is mesh-route-proxy, which speaks route grants natively, and a traefik that consumed them would be an adapter nobody has written pretending to be a conversion. All images pinned by real digests, resolved on this workstation today.
121 lines
5.0 KiB
Makefile
121 lines
5.0 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-control-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-control ./cmd/mesh-control
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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-control:$(VERSION)
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DEV_TAG ?= mesh-control:development
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image:
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docker build --build-arg VERSION=$(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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docker build -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 -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 -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 -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 -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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check: fmt vet postgres
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@go test ./... ; 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.
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test:
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go test ./...
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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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