add basic k8s config

config/database.yml

@@ -1,4 +1,4 @@
-# SQLite version 3.x
+ # SQLite version 3.x
 #   gem install sqlite3
 #
 #   Ensure the SQLite 3 gem is defined in your Gemfile

config/environments/staging.rb

@@ -3,7 +3,7 @@
 
 Rails.application.configure do
   # Here override any defaults
-  routes.default_url_options[:host] = 'pek.staging.kir-dev.sch.bme.hu'
+  routes.default_url_options[:host] = ENV['HOST_URL']
 
-  config.ssl_options = { redirect: { host: 'pek.staging.kir-dev.sch.bme.hu' } }
+  config.ssl_options = { redirect: { host: ENV['HOST_URL'] } }
 end

pek-next/.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/

pek-next/Chart.yaml

@@ -0,0 +1,23 @@
+apiVersion: v2
+name: pek-next
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.

pek-next/templates/_helpers.tpl

@@ -0,0 +1,62 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "pek-next.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 "pek-next.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 "pek-next.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "pek-next.labels" -}}
+helm.sh/chart: {{ include "pek-next.chart" . }}
+{{ include "pek-next.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "pek-next.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "pek-next.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "pek-next.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "pek-next.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

pek-next/templates/deployment.yaml

@@ -0,0 +1,42 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ .Values.name }}
+  labels:
+    app: {{ .Values.name }}
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: {{ .Values.name }}
+  template:
+    metadata:
+      labels:
+        app: {{ .Values.name }}
+    spec:
+      containers:
+      - name: {{ .Values.name }}
+        image: {{ .Values.image.repository }}:{{ .Values.image.tag }}
+        ports:
+        - containerPort: 3000
+        command: ["bin/rails"]
+        args: ["server", "-b","0.0.0.0"]
+        env:
+        - name: "RAILS_ENV"
+          value: {{ .Values.railsEnv }}
+        - name: "DATABASE_HOST"
+          value: "postgres-service"
+        - name: "DATABASE_NAME"
+          value: {{ .Values.name }}-{{ .Values.railsEnv }}
+        - name: "DATABASE_USER"
+          value: {{.Values.database.user }}
+        - name: "DATABASE_PASSWORD"
+          value: {{ .Values.database.password }}
+        - name: "UNSPLASH_ACCES_KEY"
+          value: {{ .Values.unsplash.accessKey }}
+        - name: "UNSPLASH_SECRET"
+          value: {{ .Values.unsplash.secret }}
+        - name: "SECRET_KEY_BASE"
+          value: {{ .Values.secretKeyBase }}
+        - name: "HOST_URL"
+          value: {{ .Values.hostUrl }}

pek-next/templates/service.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: pek-next-service
+spec:
+  type: NodePort
+  selector:
+    app: pek-next
+  ports:
+    - protocol: TCP
+      port: 80
+      targetPort: 3000

pek-next/values.yaml

@@ -0,0 +1,21 @@
+# Default values for pek-next.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+name: pek-next
+image:
+  repository: kirdev/pek-next
+  pullPolicy: IfNotPresent
+  # Overrides the image tag whose default is the chart appVersion.
+  tag: 0.0.1
+railsEnv: staging
+database:
+  host: postgres-service
+  user: postgres
+  password: example
+unsplash:
+  accessKey: CHANGE-ME
+  secret: CHANGE-ME
+secretKeyBase: CHANGE-ME
+hostUrl: pek.k8s.sch.bme.hu

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/

postgres/Chart.yaml

@@ -0,0 +1,24 @@
+apiVersion: v2
+name: postgres
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "1.16.0"

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 }}

postgres/templates/all.yaml

@@ -0,0 +1,69 @@
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: data-pv
+spec:
+  storageClassName: "standard"
+  capacity:
+    storage: 1Gi
+  accessModes:
+    - ReadWriteOnce
+  hostPath:
+    path: "/mnt/data"
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+    name: data-pvc
+spec:
+    storageClassName: "standard" # Empty string must be explicitly set otherwise default StorageClass will be set
+    volumeName: data-pv
+    accessModes:
+        - ReadWriteOnce
+    resources:
+        requests:
+            storage: 50Mi
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: postgres-deployment
+  labels:
+    app: postgres
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: postgres
+  template:
+    metadata:
+      labels:
+        app: postgres
+    spec:
+      containers:
+      - name: postgres
+        image: postgres:13.1
+        ports:
+        - containerPort: 5432
+        env:
+        - name: "POSTGRES_PASSWORD"
+          value: "example"
+        volumeMounts:
+        - name: data
+          mountPath: /var/lib/postgresql/data
+      volumes:
+      - name: data
+        persistentVolumeClaim:
+            claimName: data-pvc
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: postgres-service
+spec:
+  selector:
+    app: postgres
+  ports:
+    - protocol: TCP
+      port: 5432
+      targetPort: 5432