feature: create helm charts(#69)

.dockerignore

@@ -0,0 +1,18 @@
+## Project Part
+.git/
+.idea/
+.DS_Store
+.tmp/
+.vscode/
+db.sqlite3
+
+## Python Part
+
+__pycache__/
+
+## Extra Part
+.helm/
+docs/
+logs/
+support-files/deploy/*
+!support-files/deploy/prod/

.gitignore

@@ -13,8 +13,8 @@ __pycache__/
 
 
 ## Settings
-scripts/deploy/local/*
-scripts/deploy/prod/*
-scripts/deploy/stag/*
+support-files/deploy/local/*
+support-files/deploy/prod/*
+support-files/deploy/stag/*
 
 logs/

.helm/djangocli/.gitignore

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+Chart.lock
+charts/*.tgz
+tests/
+*.log
+values-private.yaml
+static-pvc.yaml

.helm/djangocli/.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/

.helm/djangocli/Chart.yaml

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+apiVersion: v2
+name: "djangocli"
+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: "latest"
+
+dependencies:
+- name: common
+  version: 1.7.1
+  repository: https://charts.bitnami.com/bitnami
+#- name: nginx-ingress-controller
+#  version: 7.6.17
+#  repository: https://charts.bitnami.com/bitnami
+#  condition: nginx-ingress-controller.enabled
+- name: mariadb
+  version: 9.4.0
+  repository: https://charts.bitnami.com/bitnami
+  condition: mariadb.enabled
+- name: redis
+  version: 14.8.7
+  repository: https://charts.bitnami.com/bitnami
+  condition: redis.enabled
+#- name: nginx
+#  version: 9.4.2
+#  repository: https://charts.bitnami.com/bitnami
+#  condition: nginx.enabled

.helm/djangocli/templates/NOTES.txt

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+1. Please check all pods is running: kubectl get pod -A
+
+2. Get the application URL by running these commands:
+- minikube: minikube service {{ include "djangocli.nginx.fullname" .}} --url
+- k8s: http://127.0.0.1:{{ .Values.nginx.service.nodePort }}
+
+3. List services and access from outer: minikube get svc -A
+
+4. Enter container to debug: kubectl exec -it <POD> -c <CONTAINER> -- sh
+
+5. Get container's log: kubectl logs <POD> -c <CONTAINER>

.helm/djangocli/templates/_helpers.tpl

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+{{- define "djangocli.backend.fullname" -}}
+{{- printf "%s-%s" (include "common.names.fullname" .) "backend" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{- define "djangocli.nginx.fullname" -}}
+{{- printf "%s-%s" (include "common.names.fullname" .) "nginx" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{- define "djangocli.celeryworker.fullname" -}}
+{{- printf "%s-%s" (include "common.names.fullname" .) "celeryworker" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{- define "djangocli.secret.mariadb.name" -}}
+{{- printf "%s-%s" (include "common.names.fullname" .) "secret-mariadb" -}}
+{{- end -}}
+
+{{- define "djangocli.secret.redis.name" -}}
+{{- printf "%s-%s" (include "common.names.fullname" .) "secret-redis" -}}
+{{- end -}}
+
+{{- define "djangocli.secret.image.name" -}}
+{{- printf "%s-%s" (include "common.names.fullname" .) "secret-image" -}}
+{{- end -}}
+
+{{- define "djangocli.secret.app.name" -}}
+{{- printf "%s-%s" (include "common.names.fullname" .) "secret-app" -}}
+{{- end -}}
+
+{{- define "imagePullSecret" }}
+{{- with .Values.imageCredentials }}
+{{- printf "{\"auths\":{\"%s\":{\"username\":\"%s\",\"password\":\"%s\",\"email\":\"%s\",\"auth\":\"%s\"}}}" .registry .username .password .email (printf "%s:%s" .username .password | b64enc) | b64enc }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "djangocli.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "common.names.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}
+
+
+{{/*
+Fully qualified app name for MariaDB
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+*/}}
+{{- define "djangocli.mariadb.fullname" -}}
+{{- printf "%s-%s" .Release.Name "mariadb" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+
+{{/*
+Fully qualified app name for Redis
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+*/}}
+{{- define "djangocli.redis.fullname" -}}
+{{- printf "%s-%s" .Release.Name "redis" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Return the Redis host
+*/}}
+{{- define "djangocli.redis.host" -}}
+{{- if .Values.redis.enabled }}
+    {{- printf "%s-master" (include "djangocli.redis.fullname" .) -}}
+{{- else -}}
+    {{- printf "%s" .Values.externalRedis.host -}}
+{{- end -}}
+{{- end -}}
+
+
+{{- define "djangocli.commonEnv" -}}
+- name: DC_ENV
+  value: prod
+- name: DC_MYSQL_HOST
+  valueFrom:
+    secretKeyRef:
+      name: {{ include "djangocli.secret.mariadb.name" . }}
+      key: host
+- name: DC_MYSQL_PORT
+  valueFrom:
+    secretKeyRef:
+      name: {{ include "djangocli.secret.mariadb.name" . }}
+      key: port
+- name: DC_MYSQL_USER
+  valueFrom:
+    secretKeyRef:
+      name: {{ include "djangocli.secret.mariadb.name" . }}
+      key: username
+- name: DC_MYSQL_PASSWORD
+  valueFrom:
+    secretKeyRef:
+      name: {{ include "djangocli.secret.mariadb.name" . }}
+      key: password
+
+- name: DC_REDIS_HOST
+  valueFrom:
+    secretKeyRef:
+      name: {{ include "djangocli.secret.redis.name" . }}
+      key: host
+- name: DC_REDIS_PORT
+  valueFrom:
+    secretKeyRef:
+      name: {{ include "djangocli.secret.redis.name" . }}
+      key: port
+- name: DC_REDIS_PASSWORD
+  valueFrom:
+    secretKeyRef:
+      name: {{ include "djangocli.secret.redis.name" . }}
+      key: password
+- name: SECRET_KEY
+  valueFrom:
+    secretKeyRef:
+      name: {{ include "djangocli.secret.app.name" . }}
+      key: secretKey
+- name: APP_NAME
+  valueFrom:
+    secretKeyRef:
+      name: {{ include "djangocli.secret.app.name" . }}
+      key: appName
+- name: APP_VERSION
+  valueFrom:
+    secretKeyRef:
+      name: {{ include "djangocli.secret.app.name" . }}
+      key: appVersion
+- name: DJANGO_SUPERUSER_PASSWORD
+  valueFrom:
+    secretKeyRef:
+      name: {{ include "djangocli.secret.app.name" . }}
+      key: superUserPassword
+- name: DJANGO_SUPERUSER_USERNAME
+  valueFrom:
+    secretKeyRef:
+      name: {{ include "djangocli.secret.app.name" . }}
+      key: superUserName
+- name: DJANGO_SUPERUSER_EMAIL
+  valueFrom:
+    secretKeyRef:
+      name: {{ include "djangocli.secret.app.name" . }}
+      key: superUserEmail
+{{- end -}}

.helm/djangocli/templates/backend/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "djangocli.backend.fullname" . }}
+  labels:
+    {{- include "common.labels.standard" . | nindent 4 }}
+    app.kubernetes.io/component: {{ include "djangocli.backend.fullname" . }}
+    {{- if .Values.commonLabels }}
+    {{- include "common.tplvalues.render" ( dict "value" .Values.commonLabels "context" $ ) | nindent 4 }}
+    {{- end }}
+spec:
+  {{- if not .Values.autoscaling.enabled }}
+  replicas: {{ .Values.replicaCount }}
+  {{- end }}
+  selector:
+    matchLabels: {{ include "common.labels.matchLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels: {{ include "common.labels.matchLabels" . | nindent 8 }}
+        app.kubernetes.io/component: {{ include "djangocli.backend.fullname" . }}
+    spec:
+      imagePullSecrets:
+      - name: {{ include "djangocli.secret.image.name" . }}
+      serviceAccountName: {{ include "djangocli.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+
+      initContainers:
+        - name: {{ include "djangocli.backend.fullname" . }}-migrate
+          image: "{{ .Values.backend.image.repository }}:{{ .Values.backend.image.tag }}"
+          imagePullPolicy: {{ .Values.backend.image.imagePullPolicy | default "IfNotPresent" | quote }}
+          command: ["python", "manage.py", "migrate"]
+          env:
+            {{- include "djangocli.commonEnv" . | nindent 12 }}
+
+      containers:
+        - name: {{ include "djangocli.backend.fullname" . }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.backend.image.repository }}:{{ .Values.backend.image.tag }}"
+          imagePullPolicy: {{ .Values.backend.image.imagePullPolicy | default "IfNotPresent" | quote }}
+          command:
+            - "gunicorn"
+            - "wsgi:application"
+            - "--bind"
+            - {{ printf "%s:%d" "0.0.0.0" (int .Values.backend.service.targetPort) }}
+          ports:
+            - containerPort: {{ int .Values.backend.service.targetPort }}
+          env:
+            {{- include "djangocli.commonEnv" .  | nindent 12 }}
+
+          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 }}

.helm/djangocli/templates/backend/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "djangocli.backend.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+  labels: {{- include "common.labels.standard" . | nindent 4 }}
+    app.kubernetes.io/component: {{ include "djangocli.backend.fullname" . }}
+    {{- if .Values.commonLabels }}
+    {{- include "common.tplvalues.render" ( dict "value" .Values.commonLabels "context" $ ) | nindent 4 }}
+    {{- end }}
+  {{- if .Values.commonAnnotations }}
+  annotations: {{- include "common.tplvalues.render" ( dict "value" .Values.commonAnnotations "context" $ ) | nindent 4 }}
+  {{- end }}
+spec:
+  type: {{ .Values.backend.service.type }}
+  ports:
+    - name: http
+      port: {{ .Values.backend.service.port }}
+      {{- if eq .Values.backend.service.type "NodePort" }}
+      {{- if .Values.backend.service.nodePort }}
+      nodePort: {{ .Values.backend.service.nodePort }}
+      {{- else }}
+      nodePort: null
+      {{- end }}
+      {{- end }}
+      targetPort: {{ .Values.backend.service.targetPort }}
+      protocol: TCP
+  selector: {{- include "common.labels.matchLabels" . | nindent 4 }}
+    app.kubernetes.io/component: {{ include "djangocli.backend.fullname" . }}