Files
mesh-catalog/modules/hello-web/module.json
T
jschoubben f0665ba956 ADR 0056: selectable ACME issuer, step-ca init from operator root, route labels
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
2026-09-10 00:21:42 +02:00

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JSON

{
"module": "hello-web",
"slug": "hello",
"version": "1",
"capabilities": [
"container-runtime"
],
"requires": [
"route"
],
"contributes": {
"route": {
"label": "hello",
"port": 8080
}
},
"binds": {
"route": "/var/lib/hello-web/route.json"
},
"listens": [
{
"port": 8080,
"protocol": "tcp",
"from": "mesh",
"why": "the demo web page; only the route-proxy reaches it, and the public name is a route grant"
}
],
"resources": [
{
"id": "state",
"type": "directory",
"path": "/var/lib/hello-web",
"mode": "0700"
},
{
"id": "page",
"type": "file",
"path": "/var/lib/hello-web/index.html",
"mode": "0644",
"content": "hello from hello-web, routed by the mesh\n"
},
{
"id": "net",
"type": "network",
"name": "hello-web"
},
{
"id": "server",
"type": "container",
"name": "hello-web",
"image": "alpine@sha256:28bd5fe8b56d1bd048e5babf5b10710ebe0bae67db86916198a6eec434943f8b",
"network": "hello-web",
"ports": [
"8080:8080"
],
"volumes": [
"/var/lib/hello-web/index.html:/www/index.html:ro"
],
"args": [
"sh",
"-c",
"while true; do { printf 'HTTP/1.1 200 OK\\r\\nContent-Type: text/plain\\r\\nConnection: close\\r\\n\\r\\n'; cat /www/index.html; } | nc -l -p 8080; done"
]
}
]
}