[COMMON] Create templates for services and PV

[oom.git] / kubernetes / common / common / templates / _service.tpl

diff --git a/kubernetes/common/common/templates/_service.tpl b/kubernetes/common/common/templates/_service.tpl
index 77b77d0..075f796 100644 (file)
--- a/kubernetes/common/common/templates/_service.tpl
+++ b/kubernetes/common/common/templates/_service.tpl
@@ -20,7 +20,7 @@
   The default will be the chart name (or .Values.nameOverride if set).
   And the use of .Values.service.name overrides all.
 
-  - .Values.service.name  : override default service (ie. chart) name
+  - .Values.service.name: override default service (ie. chart) name
 */}}
 {{/*
   Expand the service name for a chart.
@@ -28,4 +28,107 @@
 {{- define "common.servicename" -}}
   {{- $name := default .Chart.Name .Values.nameOverride -}}
   {{- default $name .Values.service.name | trunc 63 | trimSuffix "-" -}}
-{{- end -}}
\ No newline at end of file
+{{- end -}}
+
+{{/* Define the metadata of Service
+     The function takes from one to three arguments (inside a dictionary):
+     - .dot : environment (.)
+     - .suffix : a string which will be added at the end of the name (with a '-').
+     - .annotations: the annotations to add
+     Usage example:
+      {{ include "common.serviceMetadata" ( dict "suffix" "myService" "dot" .) }}
+      {{ include "common.serviceMetadata" ( dict "annotations" .Values.service.annotation "dot" .) }}
+*/}}
+{{- define "common.serviceMetadata" -}}
+  {{- $dot := default . .dot -}}
+  {{- $suffix := default "" .suffix -}}
+  {{- $annotations := default "" .annotations -}}
+{{- if $annotations -}}
+annotations: {{- include "common.tplValue" (dict "value" $annotations "context" $dot) | nindent 2 }}
+{{- end }}
+name: {{ include "common.servicename" $dot }}{{ if $suffix }}{{ print "-" $suffix }}{{ end }}
+namespace: {{ include "common.namespace" $dot }}
+labels: {{- include "common.labels" $dot | nindent 2 -}}
+{{- end -}}
+
+{{/* Define the ports of Service
+     The function takes three arguments (inside a dictionary):
+     - .dot : environment (.)
+     - .ports : an array of ports
+     - .portType: the type of the service
+*/}}
+{{- define "common.servicePorts" -}}
+{{- $portType := .portType -}}
+{{- $dot := .dot -}}
+{{- range $index, $port := .ports }}
+- port: {{ $port.port }}
+  targetPort: {{ $port.name }}
+  {{- if (eq $portType "NodePort") }}
+  nodePort: {{ $dot.Values.global.nodePortPrefix | default $dot.Values.nodePortPrefix }}{{ $port.nodePort }}
+  {{- end }}
+  name: {{ $port.name }}
+{{- end -}}
+{{- end -}}
+
+{{/* Create generic service template
+     The function takes several arguments (inside a dictionary):
+     - .dot : environment (.)
+     - .ports : an array of ports
+     - .portType: the type of the service
+     - .suffix : a string which will be added at the end of the name (with a '-')
+     - .annotations: the annotations to add
+     - .publishNotReadyAddresses: if we publish not ready address
+     - .headless: if the service is headless
+*/}}
+{{- define "common.genericService" -}}
+{{- $dot := default . .dot -}}
+{{- $suffix := default "" .suffix -}}
+{{- $annotations := default "" .annotations -}}
+{{- $publishNotReadyAddresses := default false .publishNotReadyAddresses -}}
+{{- $portType := .portType -}}
+{{- $ports := .ports -}}
+{{- $headless := default false .headless -}}
+apiVersion: v1
+kind: Service
+metadata: {{ include "common.serviceMetadata" (dict "suffix" $suffix "annotations" $annotations "dot" $dot ) | nindent 2 }}
+spec:
+  {{- if $headless }}
+  clusterIP: None
+  {{- end }}
+  ports: {{- include "common.servicePorts" (dict "portType" $portType "ports" $ports "dot" $dot) | nindent 4 }}
+  {{- if $publishNotReadyAddresses }}
+  publishNotReadyAddresses: true
+  {{- end }}
+  type: {{ $portType }}
+  selector: {{- include "common.matchLabels" $dot | nindent 4 }}
+{{- end -}}
+
+{{/* Create service template */}}
+{{- define "common.service" -}}
+{{- $suffix := default "" .Values.service.suffix -}}
+{{- $annotations := default "" .Values.service.annotations -}}
+{{- $publishNotReadyAddresses := default false .Values.service.publishNotReadyAddresses -}}
+{{- $portType := .Values.service.type -}}
+{{- $ports := .Values.service.ports -}}
+{{ include "common.genericService" (dict "suffix" $suffix "annotations" $annotations "dot" . "publishNotReadyAddresses" $publishNotReadyAddresses "ports" $ports "portType" $portType) }}
+{{- end -}}
+
+{{/* Create headless service template */}}
+{{- define "common.headlessService" -}}
+{{- $suffix := include "common._makeHeadlessSuffix" . -}}
+{{- $annotations := default "" .Values.service.headless.annotations -}}
+{{- $publishNotReadyAddresses := default false .Values.service.headless.publishNotReadyAddresses -}}
+{{- $ports := .Values.service.headlessPorts -}}
+{{ include "common.genericService" (dict "suffix" $suffix "annotations" $annotations "dot" . "publishNotReadyAddresses" $publishNotReadyAddresses "ports" $ports "portType" "ClusterIP" "headless" true ) }}
+{{- end -}}
+
+{{/*
+  Generate the right suffix for headless service
+*/}}
+{{- define "common._makeHeadlessSuffix" -}}
+{{-   if hasKey .Values.service.headless "suffix" }}
+{{-     .Values.service.headless.suffix }}
+{{-   else }}
+{{-     print "headless" }}
+{{-   end }}
+{{- end -}}