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mesh-contracts/seats/container-image-registry/seat.json
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jschoubben 2fade8d603 SD-M2a: the four registry seats whole, their shared verbs written once (design 51, ADR 0605, ADR 0611, ADR 0617 §2)
publish, publish-part, versions and remove in the part registry; mirror and tags on the image seat; hold and release on
the two seats distribution holds; published, refused, removed, held and released on each seat's own family.

Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig
2026-11-04 11:50:54 +01:00

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JSON

{
"format": 1,
"seat": "container-image-registry",
"scope": "mesh",
"grain": "whole",
"decision": "novox/hq ADR 0605",
"description": "The mesh's container images, in the one artifact store: the OCI distribution protocol's read side, an image's tags and mirroring an outside image.",
"delivers": "artifact-store",
"includes": [
"registry"
],
"verbs": [
{
"name": "mirror",
"description": "Copy an outside image into the store by its pinned digest; emits published or refused.",
"callers": "mesh-build-image's holder of the image build seat",
"input": {
"type": "object",
"properties": {
"source": {
"type": "string",
"description": "the outside image's reference"
},
"digest": {
"type": "string",
"description": "its pinned digest, sha256:<hex>"
},
"name": {
"type": "string",
"description": "the name it is kept under"
}
},
"required": [
"source",
"digest",
"name"
]
},
"answer": {
"type": "object",
"properties": {
"reference": {
"type": "string",
"description": "the reference the seat answers"
},
"digest": {
"type": "string",
"description": "the digest stored"
}
},
"required": [
"reference",
"digest"
]
}
},
{
"name": "tags",
"description": "The tags of one image and the digest each names.",
"callers": "any caller whose role grants it",
"input": {
"type": "object",
"properties": {
"name": {
"type": "string",
"description": "the image"
}
},
"required": [
"name"
]
},
"answer": {
"type": "object",
"properties": {
"name": {
"type": "string",
"description": "the image"
},
"tags": {
"type": "array",
"items": {
"type": "object",
"properties": {
"tag": {
"type": "string",
"description": "the tag"
},
"digest": {
"type": "string",
"description": "its digest"
}
},
"required": [
"tag",
"digest"
]
},
"description": "every tag"
}
},
"required": [
"name",
"tags"
]
}
},
{
"name": "hold",
"description": "Keep one untagged bundle, archive or copied base from removal by retention, as the artifact sweep's rules keep it (ADR 0617 §2); never an image of the holder's own. Emits held.",
"callers": "the module that runs the artifact sweep alone",
"input": {
"type": "object",
"properties": {
"name": {
"type": "string",
"description": "the name"
},
"digest": {
"type": "string",
"description": "the digest"
},
"reason": {
"type": "string",
"description": "which of the sweep's rules keeps it"
}
},
"required": [
"name",
"digest",
"reason"
]
},
"answer": {
"type": "object",
"properties": {
"held": {
"type": "boolean",
"description": "it is held"
},
"since": {
"type": "string",
"description": "when the hold began, RFC 3339"
}
},
"required": [
"held"
]
}
},
{
"name": "release",
"description": "Let a hold go; emits released. By hand only through the holder's own tool, the operator's session as the proved caller, recorded as a hand act.",
"callers": "the module that runs the artifact sweep; the operator's session through the holder's tool",
"input": {
"type": "object",
"properties": {
"name": {
"type": "string",
"description": "the name"
},
"digest": {
"type": "string",
"description": "the digest"
},
"reason": {
"type": "string",
"description": "why it is let go"
}
},
"required": [
"name",
"digest",
"reason"
]
},
"answer": {
"type": "object",
"properties": {
"released": {
"type": "boolean",
"description": "the hold is gone"
}
},
"required": [
"released"
]
}
}
],
"events": [
{
"name": "held",
"body": {
"$ref": "#/defs/Hold"
}
},
{
"name": "released",
"body": {
"$ref": "#/defs/Hold"
}
}
],
"family": {
"name": "container-image-registry.events",
"max-age-days": 7
},
"provisions": [
{
"name": "artifact-store",
"form": {
"type": "object",
"properties": {
"url": {
"type": "string",
"description": "the store's address"
}
},
"required": [
"url"
],
"description": "the artifact store's read side, the OCI distribution protocol's GET and HEAD, open on the mesh network (design 51)"
}
}
],
"defs": {
"Hold": {
"type": "object",
"properties": {
"name": {
"type": "string",
"description": "the name"
},
"digest": {
"type": "string",
"description": "the digest"
},
"reason": {
"type": "string",
"description": "why"
},
"holder": {
"type": "string",
"description": "the module holding the seat"
},
"by": {
"type": "string",
"description": "the caller the holder proved"
},
"at": {
"type": "string",
"description": "when, RFC 3339"
}
},
"required": [
"name",
"digest",
"holder"
],
"description": "the body of held and released"
}
}
}