baremetal-final-minikube

Chart.yaml

@@ -0,0 +1,13 @@
+apiVersion: v2
+name: todo
+description: Django-ToDo App
+type: application
+version: 0.1.0
+appVersion: latest
+
+dependencies:
+- name: postgresql
+  version: 9.1.2
+  appVersion: 11.8.0
+  repository: https://charts.bitnami.com/bitnami
+    

Dockerfile

@@ -0,0 +1,10 @@
+FROM python:3.6-alpine
+WORKDIR /app
+RUN apk add gcc postgresql-dev openssl-dev musl-dev git && \
+	git clone https://github.com/shacker/gtd.git . && \
+	pip install pipenv && \
+	pipenv --python 3.6 && \
+	pipenv install --dev
+ADD local.py project/.
+ADD init.sh .
+CMD [ "./init.sh" ]

ansible.cfg

@@ -0,0 +1,10 @@
+[defaults]
+allow_world_readable_tmpfiles=True
+pipelining=True
+retry_files_enabled = False
+inventory = inventory
+roles_path = roles
+library = library
+remote_tmp = /root/.ansible/tmp
+[connection]
+pipelining=True

bootstrap.yml

@@ -0,0 +1,6 @@
+---
+- name: bootstrap playbook for any k8s machine
+  hosts: k8s
+  become: yes
+  roles:
+    - bootstrap

init.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+pipenv run python manage.py migrate todo
+pipenv run python manage.py runserver 0.0.0.0:8080

inventory/hosts

@@ -0,0 +1,2 @@
+[k8s]
+kubetest ansible_connection=local

local.py

@@ -0,0 +1,32 @@
+# Overrides
+from .settings import *  # noqa: F401
+import os
+
+ALLOWED_HOSTS = ['*']
+DEBUG = True
+
+SECRET_KEY = os.environ['SECRET_KEY']
+
+DEBUG = True
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.postgresql',
+        'NAME': os.environ['DATABASE_NAME'],
+        'HOST': os.environ['DATABASE_HOST'],
+        'USER': os.environ['DATABASE_USER'],
+        'PASSWORD': os.environ['DATABASE_PASSWORD'],
+        # 'PORT': int(os.environ['DATABASE_PORT']),
+        # 'USER': 'django',
+        # 'PASSWORD': '123Asd123',
+        'PORT': '',
+    },
+}
+
+EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
+
+# TODO-specific settings
+TODO_STAFF_ONLY = False
+TODO_DEFAULT_LIST_SLUG = 'tickets'
+TODO_DEFAULT_ASSIGNEE = None
+TODO_PUBLIC_SUBMIT_REDIRECT = '/'

roles/bootstrap/defaults/main.yml

@@ -0,0 +1,5 @@
+k8s_version: '1.17.5'
+kubernetes_apt_release_channel: main
+kubernetes_apt_repository: "deb http://apt.kubernetes.io/ kubernetes-xenial {{ kubernetes_apt_release_channel }}"
+helm_apt_repository: "deb https://baltocdn.com/helm/stable/debian/ all main"
+docker_apt_repository: "deb [arch=amd64] https://download.docker.com/linux/debian/ stretch stable"

roles/bootstrap/tasks/main.yml

@@ -0,0 +1,90 @@
+---
+- name: Ensure dependencies are installed.
+  apt:
+    name:
+      - apt-transport-https
+      - ca-certificates
+      - qemu-kvm
+      - libvirt-clients
+      - libvirt-daemon-system
+    state: present
+
+- name: Add Docker apt key.
+  apt_key:
+    url: https://download.docker.com/linux/debian/gpg
+    state: present
+
+- name: Add Helm apt key.
+  apt_key:
+    url: https://helm.baltorepo.com/organization/signing.asc
+    state: present
+
+- name: Add Kubernetes apt key.
+  apt_key:
+    url: https://packages.cloud.google.com/apt/doc/apt-key.gpg
+    state: present
+
+- name: Add Kubernetes repository.
+  apt_repository:
+    repo: "{{ kubernetes_apt_repository }}"
+    state: present
+    update_cache: true
+
+- name: Add Helm repository.
+  apt_repository:
+    repo: "{{ helm_apt_repository }}"
+    state: present
+    update_cache: true
+
+- name: Add Docker repository.
+  apt_repository:
+    repo: "{{ docker_apt_repository }}"
+    state: present
+    update_cache: true
+
+- name: Installing kubectl, docker.
+  apt:
+    pkg:
+      - kubectl={{ k8s_version }}-00
+      - docker-ce-cli
+    update_cache: yes
+
+- name: Add Kubernetes apt preferences file to pin a version.
+  template:
+    src: apt-preferences-kubernetes.j2
+    dest: /etc/apt/preferences.d/kubernetes
+
+- name: Downloading Minikube.
+  get_url:
+    url: https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
+    dest: /usr/local/bin/minikube
+
+- name: Fix permissions for Minicube binary.
+  shell: chmod +x /usr/local/bin/minikube
+
+- name: Installing Docker Machine KVM driver.
+  get_url:
+    url: https://storage.googleapis.com/minikube/releases/latest/docker-machine-driver-kvm2
+    dest: /usr/local/bin/docker-machine-driver-kvm2
+
+- name: Fix permissions for KVM driver.
+  shell: chmod +x /usr/local/bin/docker-machine-driver-kvm2
+
+- name: Configuring Minikube default driver
+  shell: minikube config set vm-driver kvm2
+
+- name: Installing Helm.
+  apt:
+    name:
+      - helm
+    state: present
+
+
+#- name: Installing Werf.
+#  get_url:
+#    url: https://dl.bintray.com/flant/werf/v1.1.19+fix10/werf-linux-amd64-v1.1.19+fix10
+#    dest: /usr/local/bin/werf
+#
+#- name: Fix permissions for Werf.io.
+#  shell: chmod +x /usr/local/bin/werf
+

roles/bootstrap/templates/apt-preferences-kubernetes.j2

@@ -0,0 +1,3 @@
+Package: kubectl
+Pin: version {{ k8s_version }}.*
+Pin-Priority: 1000

runme.sh

@@ -0,0 +1,30 @@
+#!/bin/sh
+cuser=`whoami`
+helm='/usr/sbin/helm'
+# Installing minikube
+sudo ansible-playbook bootstrap.yml
+sudo adduser ${cuser} libvirt
+# Init minikube
+minikube start --vm-driver kvm2
+# Time to Deploy something into our cluster
+eval $(minikube docker-env)
+docker build -t todo . && \
+	kubectl create secret generic todo-secrets \
+		--from-literal=SECRET_KEY='It5R3411iR4nd0M5tr1Ng' \
+		--from-literal=DATABASE_NAME='django' \
+		--from-literal=DATABASE_HOST='todo-postgresql.default.svc.cluster.local' \
+		--from-literal=DATABASE_USER='postgres'
+${helm} repo add stable https://kubernetes-charts.storage.googleapis.com
+${helm} repo add bitnami https://charts.bitnami.com/bitnami
+#${helm} install postgres --set postgresqlDatabase=django bitnami/postgresql
+${helm} dependency build
+${helm} upgrade -i todo --set postgresql.postgresqlDatabase=django . -f values.yaml
+    while true ; do 
+        echo "Waiting for pods..."
+        result=$(kubectl get pods | grep -cv Running)
+            if [ $result -le 1 ] ; then
+              	minikube service todo
+		break
+            fi
+            sleep 10
+    done

templates/NOTES.txt

@@ -0,0 +1,21 @@
+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 }}://{{ $host.host }}{{ . }}
+  {{- end }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "todo.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "todo.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "todo.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 "todo.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:80
+{{- end }}

templates/_helpers.tpl

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

templates/deployment.yaml

@@ -0,0 +1,94 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "todo.fullname" . }}
+  labels:
+    {{- include "todo.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "todo.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      labels:
+        {{- include "todo.selectorLabels" . | nindent 8 }}
+    spec:
+    {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+      serviceAccountName: {{ include "todo.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      initContainers:
+      - args:
+        - -wait
+        - tcp://todo-postgresql.default.svc.cluster.local:5432
+        - -timeout
+        - 600s
+        image: jwilder/dockerize
+        imagePullPolicy: Always
+        name: waitfor
+        resources:
+          limits:
+            cpu: 100m
+            memory: 64Mi
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          env:
+            - name: SECRET_KEY
+              valueFrom:
+                secretKeyRef:
+                  name: todo-secrets
+                  key: SECRET_KEY
+            - name: DATABASE_NAME
+              valueFrom:
+                secretKeyRef:
+                  name: todo-secrets
+                  key: DATABASE_NAME
+            - name: DATABASE_HOST
+              valueFrom:
+                secretKeyRef:
+                  name: todo-secrets
+                  key: DATABASE_HOST
+            - name: DATABASE_USER
+              valueFrom:
+                secretKeyRef:
+                  name: todo-secrets
+                  key: DATABASE_USER
+            - name: DATABASE_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: todo-postgresql
+                  key: postgresql-password
+          ports:
+            - name: http
+              containerPort: 8080
+              protocol: TCP
+          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 }}

templates/ingress.yaml

@@ -0,0 +1,41 @@
+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "todo.fullname" . -}}
+{{- $svcPort := .Values.service.port -}}
+{{- 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 "todo.labels" . | nindent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+{{- 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: {{ . }}
+            backend:
+              serviceName: {{ $fullName }}
+              servicePort: {{ $svcPort }}
+        {{- end }}
+  {{- end }}
+{{- end }}

templates/service.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "todo.fullname" . }}
+  labels:
+    {{- include "todo.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    {{- include "todo.selectorLabels" . | nindent 4 }}

templates/serviceaccount.yaml

@@ -0,0 +1,8 @@
+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "todo.serviceAccountName" . }}
+  labels:
+{{ include "todo.labels" . | nindent 4 }}
+{{- end -}}

templates/tests/test-connection.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: "{{ include "todo.fullname" . }}-test-connection"
+  labels:
+{{ include "todo.labels" . | nindent 4 }}
+  annotations:
+    "helm.sh/hook": test-success
+spec:
+  containers:
+    - name: wget
+      image: busybox
+      command: ['wget']
+      args:  ['{{ include "todo.fullname" . }}:{{ .Values.service.port }}']
+  restartPolicy: Never

values.yaml

@@ -0,0 +1,79 @@
+replicaCount: 1
+image:
+  repository: todo
+  pullPolicy: Never
+serviceAccount:
+  create: true
+service:
+  type: NodePort
+  port: 80
+ingress:
+  enabled: false
+postgresql:
+#  postgresqlPassword: postgres
+  global:
+    postgresql: {}
+  image:
+    registry: docker.io
+    repository: bitnami/postgresql
+    tag: 12.3.0-debian-10-r74
+    pullPolicy: IfNotPresent
+    debug: false
+  volumePermissions:
+    enabled: true
+    image:
+      registry: docker.io
+      repository: bitnami/minideb
+      tag: stretch
+      pullPolicy: IfNotPresent
+    securityContext:
+      runAsUser: 0
+  securityContext:
+    enabled: true
+    fsGroup: 1001
+    runAsUser: 1001
+  serviceAccount:
+    enabled: true
+  replication:
+    enabled: false
+  postgresqlDataDir: /bitnami/postgresql/data
+  ldap:
+    enabled: false
+  service:
+    type: ClusterIP
+    port: 5432
+  shmVolume:
+    enabled: true
+  persistence:
+    enabled: true
+    mountPath: /bitnami/postgresql
+    subPath: ""
+    accessModes:
+      - ReadWriteOnce
+    size: 4Gi
+    annotations: {}
+  updateStrategy:
+    type: RollingUpdate
+  resources:
+    requests:
+      memory: 256Mi
+      cpu: 250m
+  networkPolicy:
+    enabled: false
+    allowExternal: true
+  livenessProbe:
+    enabled: true
+    initialDelaySeconds: 30
+    periodSeconds: 10
+    timeoutSeconds: 5
+    failureThreshold: 6
+    successThreshold: 1
+  readinessProbe:
+    enabled: true
+    initialDelaySeconds: 5
+    periodSeconds: 10
+    timeoutSeconds: 5
+    failureThreshold: 6
+    successThreshold: 1
+  metrics:
+    enabled: false