Merge pull request #85 from pmint93/pgbouncer-chart

[charts/pgbouncer] Add pgbouncer chart

CONTRIBUTING.md

@@ -6,8 +6,6 @@ Contributions are welcome via GitHub pull requests. This document outlines the p
 
 Isssues or Pull requests to a chart should be created with prefix `[charts/<name>]` eg: `[charts/metabase]`
 
-_For now, there's only one chart, then this is just a best practice_
-
 **Bumping chart version**
 
 Every PR should include chart version bump, because we can not have different version of the charts with the same version name.

charts/pgbouncer/.helmignore

@@ -0,0 +1,23 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

charts/pgbouncer/Chart.yaml

@@ -0,0 +1,10 @@
+apiVersion: v2
+name: pgbouncer
+version: "0.1.0"
+description: A Helm chart for Pgbouncer
+type: application
+home: https://github.com/pmint93/helm-charts
+maintainers:
+- name: pmint93
+  url: https://github.com/pmint93
+appVersion: "v1.21.0"

charts/pgbouncer/templates/NOTES.txt

@@ -0,0 +1,32 @@
+PgBouncer has been installed!
+
+{{- if contains "NodePort" .Values.service.type }}
+
+PgBouncer is exposed as a `NodePort` type service.
+Get the address by running these commands:
+
+    export NODE_PORT=$(kubectl --namespace {{ .Release.Namespace }} get services -o jsonpath="{.spec.ports[0].nodePort}" {{ include "pgbouncer.fullname" . }})
+    export NODE_IP=$(kubectl --namespace {{ .Release.Namespace }} get nodes -o jsonpath="{.items[0].status.addresses[1].address}")
+
+    echo "Connect to PgBouncer by using IP address: $NODE_IP and port number: $NODE_PORT"
+
+{{- else if contains "LoadBalancer" .Values.service.type }}
+
+PgBouncer is exposed as a `LoadBalancer` type service.
+It may take a few minutes for the LoadBalancer IP to be available.
+You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "pgbouncer.fullname" . }}'
+
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "pgbouncer.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
+  echo "Connect to PgBouncer by using IP address: $SERVICE_IP and port number: {{ .Values.service.port }}"
+
+{{- else if contains "ClusterIP" .Values.service.type }}
+
+PgBouncer is exposed as a `ClusterIP` type service.
+Get the address by running these commands:
+
+    export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "pgbouncer.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+    export CONTAINER_PORT=$(kubectl get pod --namespace {{ .Release.Namespace }} $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
+    echo "Connect to PgBouncer by using IP address: 127.0.0.1 and port number: 5432"
+    kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 5432:$CONTAINER_PORT
+
+{{- end }}

charts/pgbouncer/templates/_helpers.tpl

@@ -0,0 +1,51 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "pgbouncer.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 "pgbouncer.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 "pgbouncer.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "pgbouncer.labels" -}}
+helm.sh/chart: {{ include "pgbouncer.chart" . }}
+{{ include "pgbouncer.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "pgbouncer.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "pgbouncer.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}

charts/pgbouncer/templates/_pgbouncer-other.ini.tpl

@@ -0,0 +1,5 @@
+{{- define "pgbouncer-other.ini" -}}
+{{- range $k, $v := .Values.extraSettings -}}
+{{ $k }} = {{ $v }}
+{{- end -}}
+{{- end -}}