jschoubben
1a628a4d22
novox/hq ADR 0141 and 04-ISSUES/142. The host half of the delivery has
been built and tested since 0141 and has never had a version to work on:
versions side by side, the newest runs, the running one stands aside
between reconciles, rollback picks a directory. This is the declaration
that gives it one.
One archive, unpacked to /usr/lib/nox-mesh-host/versions/${version}. The
version resolves to the artifact's digest, so an unchanged build lands at
the path it already had and re-composing a declaration moves nothing.
Not circular: the host applying this is a different version from the one
being written, and neither writes over the other — the kernel refuses to
truncate a running executable, which is the reason the path carries the
version rather than a link pointing at "current".
**The launcher is deliberately not delivered here.** The one on these
machines predates the versions mechanism and runs the fixed binary path,
so a delivered version is inert until it is replaced — and replacing it
from the mesh means writing over a running shell script, which sh reads
incrementally. That wants a designed swap rather than a file resource, and
it is the last piece rather than this one.
25 lines
431 B
JSON
25 lines
431 B
JSON
{
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"module": "mesh-host",
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"version": "1",
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"slug": "host",
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"build": {
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"artifacts": [
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{
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"name": "host-arch",
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"kind": "bundle",
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"language": "go",
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"system": "arch",
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"from": "cmd/mesh-host"
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}
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]
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},
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"resources": [
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{
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"id": "next",
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"type": "archive",
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"artifact": "host-arch",
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"path": "/usr/lib/nox-mesh-host/versions/${version}"
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}
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]
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}
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