chore(helm): add Helm template helpers

helm/incidentops/templates/_helpers.tpl

@@ -0,0 +1,63 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "incidentops.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+*/}}
+{{- define "incidentops.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 "incidentops.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "incidentops.labels" -}}
+helm.sh/chart: {{ include "incidentops.chart" . }}
+{{ include "incidentops.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "incidentops.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "incidentops.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+PostgreSQL connection string
+*/}}
+{{- define "incidentops.postgresConnectionString" -}}
+Host={{ .Release.Name }}-postgresql;Port=5432;Database={{ .Values.postgresql.auth.database }};Username={{ .Values.postgresql.auth.username }};Password={{ .Values.postgresql.auth.password }}
+{{- end }}
+
+{{/*
+Redis connection string
+*/}}
+{{- define "incidentops.redisConnectionString" -}}
+{{ .Release.Name }}-redis-master:6379
+{{- end }}