cozystack/packages/apps/vm-instance/templates/_helpers.tpl
Andrei Kvapil 2e61810547
refactor: replace Helm lookup with valuesFrom mechanism
Replace Helm lookup functions with FluxCD valuesFrom mechanism for
reading cluster and namespace configuration.

Changes:
- Create Secret cozystack-values in each namespace with values.yaml key
  containing _cluster and _namespace configuration as nested YAML
- Configure HelmReleases to read from this Secret via valuesFrom
  (valuesKey defaults to values.yaml, so it can be omitted)
- Update cozy-lib helpers to access config via .Values._cluster
- Add default values for required _cluster keys to ensure all fields exist
- Update Go code (cozystack-api and helm reconciler) to use new format

This eliminates the need for Helm lookup functions while maintaining
the same configuration interface for charts.

Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: Andrei Kvapil <kvapss@gmail.com>
2026-01-05 16:10:55 +01:00

103 lines
3.3 KiB
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{{/*
Expand the name of the chart.
*/}}
{{- define "virtual-machine.name" -}}
{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
{{- end }}
{{/*
Create a default fully qualified app name.
We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
If release name contains chart name it will be used as a full name.
*/}}
{{- define "virtual-machine.fullname" -}}
{{- if .Values.fullnameOverride }}
{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
{{- else }}
{{- $name := default .Chart.Name .Values.nameOverride }}
{{- if contains $name .Release.Name }}
{{- .Release.Name | trunc 63 | trimSuffix "-" }}
{{- else }}
{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
{{- end }}
{{- end }}
{{- end }}
{{/*
Create chart name and version as used by the chart label.
*/}}
{{- define "virtual-machine.chart" -}}
{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
{{- end }}
{{/*
Common labels
*/}}
{{- define "virtual-machine.labels" -}}
helm.sh/chart: {{ include "virtual-machine.chart" . }}
{{ include "virtual-machine.selectorLabels" . }}
{{- if .Chart.AppVersion }}
app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
{{- end }}
app.kubernetes.io/managed-by: {{ .Release.Service }}
{{- end }}
{{/*
Selector labels
*/}}
{{- define "virtual-machine.selectorLabels" -}}
app.kubernetes.io/name: {{ include "virtual-machine.name" . }}
app.kubernetes.io/instance: {{ .Release.Name }}
{{- end }}
{{/*
Generate a stable UUID for cloud-init re-initialization upon upgrade.
*/}}
{{- define "virtual-machine.stableUuid" -}}
{{- $source := printf "%s-%s-%s" .Release.Namespace (include "virtual-machine.fullname" .) .Values.cloudInitSeed }}
{{- $hash := sha256sum $source }}
{{- $uuid := printf "%s-%s-4%s-9%s-%s" (substr 0 8 $hash) (substr 8 12 $hash) (substr 13 16 $hash) (substr 17 20 $hash) (substr 20 32 $hash) }}
{{- if eq .Values.cloudInitSeed "" }}
{{- /* Try to save previous uuid to not trigger full cloud-init again if user decided to remove the seed. */}}
{{- $vmResource := lookup "kubevirt.io/v1" "VirtualMachine" .Release.Namespace (include "virtual-machine.fullname" .) -}}
{{- if $vmResource }}
{{- $existingUuid := $vmResource | dig "spec" "template" "spec" "domain" "firmware" "uuid" "" }}
{{- if $existingUuid }}
{{- $uuid = $existingUuid }}
{{- end }}
{{- end }}
{{- end }}
{{- $uuid }}
{{- end }}
{{/*
Node Affinity for Windows VMs
*/}}
{{- define "virtual-machine.nodeAffinity" -}}
{{- if .Values._cluster.scheduling -}}
{{- $dedicatedNodesForWindowsVMs := get .Values._cluster.scheduling "dedicatedNodesForWindowsVMs" -}}
{{- if eq $dedicatedNodesForWindowsVMs "true" -}}
{{- $isWindows := hasPrefix "windows" (toString .Values.instanceProfile) -}}
affinity:
nodeAffinity:
{{- if $isWindows }}
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
- key: scheduling.cozystack.io/vm-windows
operator: In
values:
- "true"
{{- else }}
preferredDuringSchedulingIgnoredDuringExecution:
- weight: 100
preference:
matchExpressions:
- key: scheduling.cozystack.io/vm-windows
operator: NotIn
values:
- "true"
{{- end }}
{{- end -}}
{{- end -}}
{{- end -}}