jklein
c20ad389f2
Stage 2 of the Fleet migration for minecraft-router: bring the chart up to the
repo style guidelines. Chart 0.1.1+up1.25.1 -> 1.0.0+up1.25.1 (major: resource
renames, mappings becomes required, probes and security hardening change the
runtime behavior; appVersion unchanged).
- Resources renamed to {{ .Release.Name }}-{{ .Chart.Name }}-<kind>, templates
to <chart>.<kind>.yaml; the deployment label now matches its own selector.
- mappings is required and must not be empty (the old default rendered
"<nil>": "<nil>:25565"); every entry needs domain and internalUrl.
- Ports come from values: server.port (router listen port, also passed as
--port), server.backendPort (default backend port, overridable per mapping),
server.apiPort (--api-binding, used by the probes). Defaults stay 25565 /
25565 / 8080, server.outwardPort keeps its 25565 default and comment.
- _helpers.tpl added (resources/limitFactor and replicas/scaleDown helpers),
resources come from values, no CPU limit.
- replicas value plus the chart-global scaleDown flag.
- Additive env block rendered through tpl (value / secretKeyRef /
configMapKeyRef).
- Values-configurable securityContext.pod / .container with hardened defaults:
non-root uid/gid 10000, readOnlyRootFilesystem, no privilege escalation, all
capabilities dropped.
- Liveness, readiness and startup probes on the mc-router API: GET /routes with
an "Accept: application/json" header (the API router matches on that header
and answers 404 without it).
- icon added to Chart.yaml.
- CI fixture supplies mappings; README chart table entry updated.
23 lines
1.3 KiB
YAML
23 lines
1.3 KiB
YAML
{{- $message := "minecraft-router: .Values.mappings is required and must not be empty - set at least one mapping with a domain and an internalUrl (see values.yaml)" -}}
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{{- $mappings := required $message .Values.mappings -}}
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{{- if and (not (kindIs "invalid" $mappings)) (or (not (kindIs "slice" $mappings)) (empty $mappings)) }}{{- fail $message -}}{{- end -}}
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{{- $routes := dict -}}
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{{/* "helm lint" reports a missing required value but keeps rendering, so the
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loop has to tolerate the nil it hands back; "helm template" and "helm
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install" abort on the required above. */}}
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{{- range $index, $mapping := ($mappings | default list) -}}
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{{- $domain := required (printf "minecraft-router: .Values.mappings[%d].domain is required" $index) $mapping.domain -}}
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{{- $internalUrl := required (printf "minecraft-router: .Values.mappings[%d].internalUrl is required" $index) $mapping.internalUrl -}}
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{{- $port := $mapping.port | default $.Values.server.backendPort -}}
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{{- $_ := set $routes $domain (printf "%v:%v" $internalUrl $port) -}}
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{{- end -}}
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: {{ .Release.Name }}-{{ .Chart.Name }}-configmap
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labels:
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app: {{ .Release.Name }}-{{ .Chart.Name }}-configmap
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data:
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custom-routing-config.json: |
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{{ dict "mappings" $routes | toPrettyJson | indent 4 }}
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