jschoubben
f0665ba956
Piece A + B of ADR 0056, completing the internal-CA work in ff01ada.
Selectable issuer. acme-ca is now a role two providers can satisfy: step-ca
(internal CA) or the new public-acme (a fact-only module, no container/listen)
that serves Let's Encrypt production. A mesh assigns one or the other to satisfy
route-proxy's `requires: acme-ca`.
One directory shape for both. A provider serves the ACME directory's parts the
way the mesh already models any reachable service -- an address (`at`), a `port`
and a `path` -- and route-proxy composes `https://<at>:<port><path>`. step-ca
lets the mesh fill `at` (its node) and `port` (its single listen) and serves only
`path`; public-acme, not being a mesh service, serves all three (overriding `at`
with the public host). Same composition either way.
Empty root means the system trust store. Both providers serve `root`: step-ca
the operator root PEM (settled per mesh), public-acme an empty string. route-proxy
writes it to the CA bundle file unconditionally; the binary now reads an empty
bundle as "the root is already trusted by the OS" and falls back to system roots
(examples/route-proxy/main.go, committed on the mesh-control ADR-0056 branch).
step-ca inits from the operator's root. The operator's root cert, root key and
root-key password are mounted at the smallstep entrypoint's default init paths
(/run/secrets/root_ca.crt, root_ca_key, root_ca_key_password) with the matching
DOCKER_STEPCA_INIT_*_FILE vars, so `step ca init` adopts the operator's root
instead of self-generating one -- the CA that signs is the CA route-proxy trusts.
Route names are labels, not FQDNs. Every routed module now contributes a `label`
(the leftmost subdomain) instead of a full public hostname; the node's public
domain composes the name. Apex (novox.be) is left as a full name -- composeName
has no empty-label/apex convention yet (mesh-control follow-up).
Claude-Session: https://claude.ai/code/session_01LrgweAeERJYBg88c5cKDzF
90 lines
2.5 KiB
JSON
90 lines
2.5 KiB
JSON
{
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"module": "step-ca",
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"version": "1",
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"capabilities": [
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"container-runtime"
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],
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"provides": [
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{
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"name": "acme-ca",
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"scope": "mesh"
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}
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],
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"serves": {
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"acme-ca": {
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"path": "/acme/acme/directory",
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"root": ""
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}
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},
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"listens": [
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{
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"port": 9000,
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"protocol": "tcp",
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"from": "mesh",
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"why": "the ACME directory and step-ca API; a proxy on any node reaches it here over the mesh to obtain certificates, and its single listen is what the consumer is told the port is"
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}
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],
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"own-secrets": {
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"password": "/var/lib/mesh/step-ca/password",
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"root-cert": "/var/lib/mesh/step-ca/root-cert",
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"root-key": "/var/lib/mesh/step-ca/root-key",
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"root-key-password": "/var/lib/mesh/step-ca/root-key-password"
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},
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"resources": [
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{
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"id": "mesh-state",
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"type": "directory",
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"path": "/var/lib/mesh/step-ca",
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"mode": "0700"
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},
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{
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"id": "home",
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"type": "directory",
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"path": "/var/lib/step-ca",
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"mode": "0700",
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"owner": "1000:1000"
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},
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{
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"id": "config",
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"type": "file",
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"path": "/var/lib/mesh/step-ca/config.json",
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"mode": "0644",
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"content": "{}",
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"merge": "json"
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},
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{
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"id": "init-env",
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"type": "file",
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"path": "/var/lib/mesh/step-ca/init.env",
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"mode": "0600",
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"content": "DOCKER_STEPCA_INIT_PASSWORD=${secret:password}\n"
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},
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{
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"id": "server",
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"type": "container",
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"name": "step-ca",
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"image": "smallstep/step-ca@sha256:a2b17872915c193259b75a5474c398326f41bd199f0842093e52cf4182bc8270",
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"network": "host",
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"env-file": [
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"/var/lib/mesh/step-ca/init.env"
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],
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"env": {
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"DOCKER_STEPCA_INIT_NAME": "Mesh Internal CA",
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"DOCKER_STEPCA_INIT_DNS_NAMES": "localhost,127.0.0.1",
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"DOCKER_STEPCA_INIT_ACME": "true",
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"DOCKER_STEPCA_INIT_REMOTE_MANAGEMENT": "false",
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"DOCKER_STEPCA_INIT_ROOT_FILE": "/run/secrets/root_ca.crt",
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"DOCKER_STEPCA_INIT_KEY_FILE": "/run/secrets/root_ca_key",
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"DOCKER_STEPCA_INIT_KEY_PASSWORD_FILE": "/run/secrets/root_ca_key_password"
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},
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"volumes": [
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"/var/lib/step-ca:/home/step",
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"/var/lib/mesh/step-ca/root-cert:/run/secrets/root_ca.crt:ro",
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"/var/lib/mesh/step-ca/root-key:/run/secrets/root_ca_key:ro",
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"/var/lib/mesh/step-ca/root-key-password:/run/secrets/root_ca_key_password:ro",
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"/var/lib/mesh/step-ca/config.json:/run/config/config.json:ro"
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]
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}
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]
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}
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