A sibling container is reached at http://<entity name>:<internal port>,
and that string was written out per call site: a literal protocol, an
entity_name interpolation for the host, and a lookup('config', ...,
'services.<key>.ports.internal.http') for the port. Nine of them across
seven roles, each needing its own `# nocheck: literal-protocol-lookup`,
because the sibling lint rightly objects to a protocol glued in front of
a lookup - the protocol is supposed to come from wherever the TLS
posture is decided.
A container network has no TLS posture. It speaks plaintext by
construction, which is a property of the network rather than of any
caller, so stating it nine times stated it eight times too often.
lookup('container_url', application_id, service_key) holds all three
facts, and because no literal protocol is left at the call site the
suppression markers go with them.
The port is deliberately the internal one. A sibling that goes out to
the published port leaves the container network and comes back through
the ingress, which the dns-search suffix turns into the public FQDN.
The lookup refuses a service that declares no internal http port rather
than falling back to anything.
test_container_url_lookup.py keeps the shape from coming back: a
protocol, an interpolation mentioning entity_name, a colon, a second
interpolation. Nothing else matches that, and `# nocheck:
container-url-lookup` covers an origin this lookup genuinely cannot
express - a port that is not ports.internal.http, or a host that is not
the application's entity.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
kevinveenbirkenbachandClaude Opus 5