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zeekay
683f6e601a
Health-check messages and reconcile-annotation values we write are
reworded from ArgoCD/Argo CD to Hanzo CD. Directory names, the
argoproj.io/promoter.argoproj.io API groups, and every GitHub
issue/doc URL they cite are untouched — those are the lua/health.go
lookup keys and external citations covered by the standing rule
(see commit 940ba5da5), not our voice.
58 lines
2.3 KiB
Lua
58 lines
2.3 KiB
Lua
-- GatewayClass health check for Hanzo CD
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--
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-- GatewayClass is a cluster-scoped Gateway API resource whose readiness is
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-- expressed through .status.conditions[type=Accepted].
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-- A Gateway API controller watches GatewayClass resources and sets the
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-- Accepted condition to indicate whether it can serve Gateways for this class.
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--
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-- Accepted condition semantics (Gateway API spec):
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-- True – controller accepts this class and can provision Gateways
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-- False – controller rejects this class (e.g. invalid parameters)
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-- Unknown – controller has not yet reconciled (default initial state, reason=Pending)
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--
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-- Hanzo CD health mapping:
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-- Accepted=True -> Healthy
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-- Accepted=False -> Degraded
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-- Accepted=Unknown / absent -> Progressing
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-- observedGeneration stale -> Progressing (avoids reporting outdated status)
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--
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-- References:
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-- GatewayClass status: https://gateway-api.sigs.k8s.io/api-types/gatewayclass/#gatewayclass-status
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-- Accepted condition type: https://gateway-api.sigs.k8s.io/reference/spec/#gateway.networking.k8s.io/v1.GatewayClassConditionType
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-- observedGeneration pattern: https://gateway-api.sigs.k8s.io/guides/implementers/#conditions
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local hs = {}
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if obj.status ~= nil and obj.status.conditions ~= nil then
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for _, condition in ipairs(obj.status.conditions) do
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if condition.type == "Accepted" then
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-- Skip stale conditions where the controller has not yet reconciled the current generation.
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-- See: https://gateway-api.sigs.k8s.io/guides/implementers/#conditions
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if obj.metadata ~= nil and obj.metadata.generation ~= nil and condition.observedGeneration ~= nil then
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if condition.observedGeneration ~= obj.metadata.generation then
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goto continue
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end
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end
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if condition.status == "True" then
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hs.status = "Healthy"
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hs.message = condition.message or "GatewayClass is accepted"
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return hs
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elseif condition.status == "False" then
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hs.status = "Degraded"
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hs.message = condition.message or "GatewayClass is not accepted"
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return hs
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else
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hs.status = "Progressing"
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hs.message = condition.message or "Waiting for GatewayClass status"
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return hs
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end
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end
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::continue::
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end
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end
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hs.status = "Progressing"
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hs.message = "Waiting for GatewayClass status"
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return hs
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