diff --git a/charts/postgres/.helmignore b/charts/postgres/.helmignore new file mode 100644 index 00000000..0e8a0eb3 --- /dev/null +++ b/charts/postgres/.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/ diff --git a/charts/postgres/Chart.yaml b/charts/postgres/Chart.yaml new file mode 100644 index 00000000..20ab0e9b --- /dev/null +++ b/charts/postgres/Chart.yaml @@ -0,0 +1,6 @@ +apiVersion: v2 +name: postgresql-helm-chart +description: A Helm chart for PostgreSQL +version: 0.1.0 +appVersion: "12.6" + diff --git a/charts/postgres/templates/NOTES.txt b/charts/postgres/templates/NOTES.txt new file mode 100644 index 00000000..dbb0997e --- /dev/null +++ b/charts/postgres/templates/NOTES.txt @@ -0,0 +1,24 @@ +{{- if .Values.ingress }} + {{- if .Values.ingress.enabled }} + {{- range $host := .Values.ingress.hosts }} + {{- range .paths }} + http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ .path }} + {{- end }} + {{- end }} + {{- end }} +{{- else if contains "NodePort" .Values.service.type }} + export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "postgres.fullname" . }}) + export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}") + echo http://$NODE_IP:$NODE_PORT +{{- else if contains "LoadBalancer" .Values.service.type }} + NOTE: It may take a few minutes for the LoadBalancer IP to be available. + You can watch its status by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "postgres.fullname" . }}' + export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "postgres.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}") + echo http://$SERVICE_IP:{{ .Values.service.port }} +{{- else if contains "ClusterIP" .Values.service.type }} + export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "postgres.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 "Visit http://127.0.0.1:8080 to use your application" + kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:$CONTAINER_PORT +{{- end }} + diff --git a/charts/postgres/templates/_helpers.tpl b/charts/postgres/templates/_helpers.tpl new file mode 100644 index 00000000..d0bfd036 --- /dev/null +++ b/charts/postgres/templates/_helpers.tpl @@ -0,0 +1,62 @@ +{{/* +Expand the name of the chart. +*/}} +{{- define "postgres.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 "postgres.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 "postgres.chart" -}} +{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }} +{{- end }} + +{{/* +Common labels +*/}} +{{- define "postgres.labels" -}} +helm.sh/chart: {{ include "postgres.chart" . }} +{{ include "postgres.selectorLabels" . }} +{{- if .Chart.AppVersion }} +app.kubernetes.io/version: {{ .Chart.AppVersion | quote }} +{{- end }} +app.kubernetes.io/managed-by: {{ .Release.Service }} +{{- end }} + +{{/* +Selector labels +*/}} +{{- define "postgres.selectorLabels" -}} +app.kubernetes.io/name: {{ include "postgres.name" . }} +app.kubernetes.io/instance: {{ .Release.Name }} +{{- end }} + +{{/* +Create the name of the service account to use +*/}} +{{- define "postgres.serviceAccountName" -}} +{{- if .Values.serviceAccount.create }} +{{- default (include "postgres.fullname" .) .Values.serviceAccount.name }} +{{- else }} +{{- default "default" .Values.serviceAccount.name }} +{{- end }} +{{- end }} diff --git a/charts/postgres/templates/configmap.yaml b/charts/postgres/templates/configmap.yaml new file mode 100644 index 00000000..343d1214 --- /dev/null +++ b/charts/postgres/templates/configmap.yaml @@ -0,0 +1,8 @@ +apiVersion: v1 +kind: ConfigMap +metadata: + name: postgresql-config +data: + POSTGRES_DB: {{ default (randAlphaNum 8) .Values.configMap.databaseName }} + POSTGRES_USER: {{ default (randAlphaNum 8) .Values.configMap.user }} + diff --git a/charts/postgres/templates/deployment.yaml b/charts/postgres/templates/deployment.yaml new file mode 100644 index 00000000..fb148819 --- /dev/null +++ b/charts/postgres/templates/deployment.yaml @@ -0,0 +1,37 @@ +apiVersion: apps/v1 +kind: Deployment +metadata: + name: postgresql +spec: + replicas: {{ .Values.replicaCount }} + selector: + matchLabels: + app: postgresql + template: + metadata: + labels: + app: postgresql + spec: + containers: + - name: postgresql + image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}" + imagePullPolicy: {{ .Values.image.pullPolicy }} + env: + - name: POSTGRES_DB + valueFrom: + configMapKeyRef: + name: postgresql-config + key: POSTGRES_DB + - name: POSTGRES_USER + valueFrom: + configMapKeyRef: + name: postgresql-config + key: POSTGRES_USER + - name: POSTGRES_PASSWORD + valueFrom: + secretKeyRef: + name: postgresql-secret + key: password + ports: + - containerPort: 5432 + diff --git a/charts/postgres/templates/secrets.yaml b/charts/postgres/templates/secrets.yaml new file mode 100644 index 00000000..2d429450 --- /dev/null +++ b/charts/postgres/templates/secrets.yaml @@ -0,0 +1,8 @@ +apiVersion: v1 +kind: Secret +metadata: + name: postgresql-secret +type: Opaque +data: + password: {{ default (randAlphaNum 16) .Values.secret.password | b64enc | quote }} + diff --git a/charts/postgres/templates/service.yaml b/charts/postgres/templates/service.yaml new file mode 100644 index 00000000..e22359b6 --- /dev/null +++ b/charts/postgres/templates/service.yaml @@ -0,0 +1,12 @@ +apiVersion: v1 +kind: Service +metadata: + name: postgresql-headless +spec: + clusterIP: None + ports: + - port: {{ .Values.service.port }} + targetPort: 5432 + selector: + app: postgresql + diff --git a/charts/postgres/templates/tests/test-connection.yaml b/charts/postgres/templates/tests/test-connection.yaml new file mode 100644 index 00000000..8289a4fd --- /dev/null +++ b/charts/postgres/templates/tests/test-connection.yaml @@ -0,0 +1,15 @@ +apiVersion: v1 +kind: Pod +metadata: + name: "{{ include "postgres.fullname" . }}-test-connection" + labels: + {{- include "postgres.labels" . | nindent 4 }} + annotations: + "helm.sh/hook": test +spec: + containers: + - name: wget + image: busybox + command: ['wget'] + args: ['{{ include "postgres.fullname" . }}:{{ .Values.service.port }}'] + restartPolicy: Never diff --git a/charts/postgres/values.yaml b/charts/postgres/values.yaml new file mode 100644 index 00000000..d729e3dd --- /dev/null +++ b/charts/postgres/values.yaml @@ -0,0 +1,32 @@ +replicaCount: 1 + +image: + repository: postgres + tag: "12.6" + pullPolicy: IfNotPresent + +service: + type: ClusterIP + port: 5432 + +configMap: + databaseName: mydatabase + user: myuser + +secret: + password: changeme + +resources: + requests: + memory: "512Mi" + cpu: "500m" + limits: + memory: "10Gi" + cpu: "1" + +nodeSelector: {} + +tolerations: [] + +affinity: {} +