[dbmate] Add dbmate (#327)

Signed-off-by: Simon Misencik <[email protected]>

charts/dbmate/.helmignore

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+# 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/dbmate/Chart.yaml

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+apiVersion: v2
+name: dbmate
+description: A Helm chart for Kubernetes
+icon: https://avatars.githubusercontent.com/u/23452093?s=200&v=4
+type: application
+version: 1.0.0
+appVersion: "2.6.0"
+maintainers:
+  - name: FRINX

charts/dbmate/README.md

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+# dbmate
+
+A Helm chart for Kubernetes deployment of the dbmate
+
+## Get Repo Info
+
+```console
+helm repo add frinx https://FRINXio.github.io/helm-charts
+helm repo update
+```
+
+## Install Chart
+
+```console
+helm install [RELEASE_NAME] frinx/dbmate
+```
+
+## Upgrading Chart
+
+```console
+helm upgrade [RELEASE_NAME] frinx/dbmate
+```
+
+## Uninstall Chart
+
+```console
+helm uninstall [RELEASE_NAME]
+```
+
+## Configuration
+
+| Parameter | Description | Default |
+|-----------|-------------|---------|
+| `replicaCount` | Number of nodes | `1` |
+| `image.repository` | Image repository | `amacneil/dbmate` |
+| `image.pullPolicy` | Image pull policy | `IfNotPresent` |
+| `image.tag` | Image tag | `""` |
+| `imagePullSecrets` | Image pull secrets | `[]` |
+| `nameOverride` | Replaces the name of the chart in the Chart.yaml file | `""` |
+| `fullnameOverride` |  Completely replaces the generated name | `""` |
+| `serviceAccount.create` | Create service account | `true` |
+| `serviceAccount.annotations` | ServiceAccount annotations | `{}` |
+| `serviceAccount.name` | Service account name to use, when empty will be set to created account if `serviceAccount.create` is set else to `default` | `""` |
+| `podAnnotations` | Deployment | `{}` |
+| `podSecurityContext` | Pod deployment securityContext | `{}` |
+| `securityContext` | Deployment securityContext | `{}` |
+| `service.type` | Kubernetes service type | `ClusterIP` |
+| `service.port` | Kubernetes port where service is exposed | `80` |
+| `ingress.enabled` | Enables Ingress | `false` |
+| `ingress.annotations` | Ingress annotations (values are templated) | `{}` |
+| `ingress.hosts` | Ingress accepted hostnames  | `[]` |
+| `ingress.tls` | Ingress TLS configuration | `[]` |
+| `resources` | CPU/Memory resource requests/limits | `{}` |
+| `autoscaling.enabled` | Enable replica autoscaling settings | `false` |
+| `autoscaling.minReplicas` | Minimum replicas for the pod autoscaling | `1` |
+| `autoscaling.maxReplicas` | Maximum replicas for the pod autoscaling | `100` |
+| `autoscaling.targetCPUUtilizationPercentage` | Percentage of CPU to consider when autoscaling | `80` |
+| `autoscaling.targetMemoryUtilizationPercentage` | Percentage of Memory to consider when autoscaling | |
+| `nodeSelector` | Node labels for pod assignment | `{}` |
+| `tolerations` | Toleration labels for pod assignment | `[]` |
+| `affinity` | Affinity settings for pod assignment | `{}` |
+| `database.postgresUser` | username for database | `postgresU` |
+| `database.postgresPassword` | password for database | `postgresP` |
+| `database.postgresDb` | database name | `postgres` |
+| `database.postgresHostname` | database hostname | `postgresql` |
+| `database.postgresPort` | database port | `5432` |
+| `database.dbUri` | database uri | `""` |
+| `database.existingSecret` | name for existing secret which contain credentials to database | `` |
+| `command` | Option to specify command for main container | `["sh", "-c"]` |
+| `args` | Option to specify args for main container | `["sleep infinity"]` |
+| `extraEnv` | Option to specify extra environment variables | |

charts/dbmate/templates/NOTES.txt

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+1. Get the application URL by running these commands:
+{{- if .Values.ingress.enabled }}
+{{- range $host := .Values.ingress.hosts }}
+  {{- range .paths }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ .path }}
+  {{- end }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "dbmate.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "dbmate.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "dbmate.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 "dbmate.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 }}

charts/dbmate/templates/_helpers.tpl

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+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "dbmate.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 "dbmate.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 "dbmate.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "dbmate.labels" -}}
+helm.sh/chart: {{ include "dbmate.chart" . }}
+{{ include "dbmate.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "dbmate.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "dbmate.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "dbmate.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "dbmate.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}
+
+{{/*
+Get the password secret.
+*/}}
+{{- define "dbmate.secretName" -}}
+{{- if .Values.database.existingSecret }}
+    {{- printf "%s" (tpl .Values.database.existingSecret $) -}}
+{{- else -}}
+    {{- printf "%s" (include "dbmate.fullname" .) -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return true if a secret object should be created
+*/}}
+{{- define "dbmate.createSecret" -}}
+{{- if not .Values.database.existingSecret -}}
+    {{- true -}}
+{{- end -}}
+{{- end -}}

charts/dbmate/templates/db-secret.yaml

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+{{- if (include "dbmate.createSecret" .) }}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ include "dbmate.fullname" . }}
+stringData:
+  POSTGRES_USER: {{ .Values.database.postgresUser }}
+  POSTGRES_PASSWORD: {{ .Values.database.postgresPassword }}
+  DATABASE_URL: {{ printf "postgres://%s:%s@%s:%s/%s?sslmode=disable" .Values.database.postgresUser .Values.database.postgresPassword .Values.database.postgresHostname ( .Values.database.postgresPort | toString ) .Values.database.postgresDb }}
+{{- end -}}

charts/dbmate/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "dbmate.fullname" . }}
+  labels:
+    {{- include "dbmate.labels" . | nindent 4 }}
+spec:
+  {{- if not .Values.autoscaling.enabled }}
+  replicas: {{ .Values.replicaCount }}
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "dbmate.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "dbmate.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "dbmate.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          command:
+            {{  range .Values.commands }}
+            - {{ . }}
+            {{ end }}
+          args:
+            {{  range .Values.args }}
+            - {{ . }}
+            {{ end }}
+          ports:
+            - name: http
+              containerPort: 80
+              protocol: TCP
+          env:
+            - name: DATABASE_URL
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "dbmate.secretName" . }}
+                  key: DATABASE_URL
+          {{- range $key, $val := .Values.extraEnv }}
+            - name: {{ $key | quote }}
+              value: {{ $val | quote }}
+          {{- end }}
+          # livenessProbe:
+          #   httpGet:
+          #     path: /
+          #     port: http
+          # readinessProbe:
+          #   httpGet:
+          #     path: /
+          #     port: http
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}

charts/dbmate/templates/hpa.yaml

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+{{- if .Values.autoscaling.enabled }}
+apiVersion: autoscaling/v2beta1
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{ include "dbmate.fullname" . }}
+  labels:
+    {{- include "dbmate.labels" . | nindent 4 }}
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ include "dbmate.fullname" . }}
+  minReplicas: {{ .Values.autoscaling.minReplicas }}
+  maxReplicas: {{ .Values.autoscaling.maxReplicas }}
+  metrics:
+    {{- if .Values.autoscaling.targetCPUUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: cpu
+        targetAverageUtilization: {{ .Values.autoscaling.targetCPUUtilizationPercentage }}
+    {{- end }}
+    {{- if .Values.autoscaling.targetMemoryUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: memory
+        targetAverageUtilization: {{ .Values.autoscaling.targetMemoryUtilizationPercentage }}
+    {{- end }}
+{{- end }}

charts/dbmate/templates/ingress.yaml

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+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "dbmate.fullname" . -}}
+{{- $svcPort := .Values.service.port -}}
+{{- if and .Values.ingress.className (not (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion)) }}
+  {{- if not (hasKey .Values.ingress.annotations "kubernetes.io/ingress.class") }}
+  {{- $_ := set .Values.ingress.annotations "kubernetes.io/ingress.class" .Values.ingress.className}}
+  {{- end }}
+{{- end }}
+{{- if semverCompare ">=1.19-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1
+{{- else if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1beta1
+{{- else -}}
+apiVersion: extensions/v1beta1
+{{- end }}
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    {{- include "dbmate.labels" . | nindent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- if and .Values.ingress.className (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion) }}
+  ingressClassName: {{ .Values.ingress.className }}
+  {{- end }}
+  {{- if .Values.ingress.tls }}
+  tls:
+    {{- range .Values.ingress.tls }}
+    - hosts:
+        {{- range .hosts }}
+        - {{ . | quote }}
+        {{- end }}
+      secretName: {{ .secretName }}
+    {{- end }}
+  {{- end }}
+  rules:
+    {{- range .Values.ingress.hosts }}
+    - host: {{ .host | quote }}
+      http:
+        paths:
+          {{- range .paths }}
+          - path: {{ .path }}
+            {{- if and .pathType (semverCompare ">=1.18-0" $.Capabilities.KubeVersion.GitVersion) }}
+            pathType: {{ .pathType }}
+            {{- end }}
+            backend:
+              {{- if semverCompare ">=1.19-0" $.Capabilities.KubeVersion.GitVersion }}
+              service:
+                name: {{ $fullName }}
+                port:
+                  number: {{ $svcPort }}
+              {{- else }}
+              serviceName: {{ $fullName }}
+              servicePort: {{ $svcPort }}
+              {{- end }}
+          {{- end }}
+    {{- end }}
+{{- end }}