Add kubernetes files and shell scripts for test deployment

README.md

@@ -5,3 +5,57 @@ Django Backend
 
 * Start both middleware AND frontend dev server simultaneously
 * See README of subfolder for further information
+
+
+## Deploy Kubernetes Admin Dashboard
+
+Deploy dashboard:
+```
+kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.0/aio/deploy/recommended.yaml
+```
+
+Create dashboard-admin.yaml file:
+
+```
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: admin-user
+  namespace: kubernetes-dashboard
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: admin-user
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: cluster-admin
+subjects:
+- kind: ServiceAccount
+  name: admin-user
+  namespace: kubernetes-dashboard
+```
+
+
+Apply it to kubernetes:
+```
+kubectl apply -f dashboard-admin.yaml
+```
+
+Get login token:
+```
+kubectl get secret -n kubernetes-dashboard $(kubectl get serviceaccount admin-user -n kubernetes-dashboard -o jsonpath="{.secrets[0].name}") -o jsonpath="{.data.token}" | base64 --decode
+```
+
+Start proxy:
+```
+kubectl proxy
+```
+
+Access URL: http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/#/ingress?namespace=default
+
+## Fix Darwin issue with Ingress
+```
+minikube stop && minikube delete && minikube start --vm=true --driver=hyperkit
+```

components/entitiy_ident/entity_ident.py

@@ -1,31 +0,0 @@
-from flask import Flask
-from flask_pymongo import PyMongo
-
-# make sure mongoDB (container) is running and accessible
-
-# see https://flask-pymongo.readthedocs.io/en/latest/
-
-app = Flask(__name__)
-app.config["MONGO_URI"] = "mongodb://localhost:27017/myDatabase"
-mongo = PyMongo(app)
-
-mongo.db.test.save({'_id': 0, 'foo': {'test': 'this'}})
-mongo.db.test.save({'_id': 1, 'suu': 'sar'})
-
-
-@app.route("/")
-def home_page():
-    test_results = mongo.db.test.find()
-    results = []
-    try:
-        while True:
-            result = test_results.next()
-            results.append(result)
-    except StopIteration:
-        pass
-
-    return str(results)
-
-
-if __name__ == '__main__':
-    app.run()

components/entitiy_ident/entity_ident_service/Dockerfile

@@ -0,0 +1,8 @@
+FROM python:3.8-slim
+COPY . /app
+WORKDIR /app
+RUN pip install -r requirements.txt
+ENV PORT 5000
+EXPOSE 5000
+ENTRYPOINT [ "python" ]
+CMD [ "entity_ident.py" ]

components/entitiy_ident/entity_ident_service/entity_ident.py

@@ -0,0 +1,38 @@
+import jsonify as jsonify
+from flask import Flask
+from flask_pymongo import PyMongo
+
+# make sure mongoDB (container) is running and accessible
+
+# see https://flask-pymongo.readthedocs.io/en/latest/
+
+app = Flask(__name__)
+#app.config["MONGO_URI"] = "mongodb://localhost:27017/myDatabase"
+#mongo = PyMongo(app)
+
+#mongo.db.test.insert_one({'_id': 0, 'foo': {'test': 'this'}})
+#mongo.db.test.insert_one({'_id': 1, 'suu': 'sar'})
+
+
+#@app.route("/")
+#def home_page():
+    # test_results = mongo.db.test.find()
+    # results = []
+    # try:
+    #     while True:
+    #         result = test_results.next()
+    #         results.append(result)
+    # except StopIteration:
+    #     pass
+
+    #return str(results)
+
+@app.route("/")
+def index():
+    return str("Welcome to Tasks app! I am running inside pod!")
+
+#if __name__ == '__main__':
+#    app.run()
+
+if __name__ == '__main__':
+    app.run(host='0.0.0.0')

components/entitiy_ident/entity_ident_service/requirements.txt

@@ -1,3 +1,4 @@
 pika
 flask
 Flask-PyMongo
+jsonify

deploy-local.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+echo "Pointing shell to minikube’s docker-daemon..."
+eval $(minikube -p minikube docker-env)
+
+echo "Building images..."
+docker build -t entity-ident components/entitiy_ident/entity_ident_service
+
+echo "Creating deployments and services..."
+kubectl create -f kubernetes/entity-ident-deployment.yaml
+kubectl create -f kubernetes/entity-ident-service.yaml
+
+echo "Enabling Ingress addon..."
+minikube addons enable ingress
+
+echo "Creating the Ingress object..."
+kubectl apply -f kubernetes/minikube-ingress.yaml

kubernetes/entity-ident-deployment.yaml

@@ -0,0 +1,22 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: entity-ident
+  labels:
+    app: entity-ident
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: entity-ident
+  template:
+    metadata:
+      labels:
+        app: entity-ident
+    spec:
+      containers:
+        - name: entity-ident
+          image: entity-ident
+          ports:
+            - containerPort: 5000
+          imagePullPolicy: Never

kubernetes/entity-ident-service.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: entity-ident
+  labels:
+    service: entity-ident
+spec:
+  selector:
+    app: entity-ident
+  ports:
+  - port: 5000
+    targetPort: 5000

kubernetes/minikube-ingress.yaml

@@ -0,0 +1,15 @@
+apiVersion: networking.k8s.io/v1beta1
+kind: Ingress
+metadata:
+  name: minimal-ingress
+  annotations:
+    nginx.ingress.kubernetes.io/rewrite-target: /
+spec:
+  rules:
+  - http:
+      paths:
+      - path: /testpath
+        pathType: Prefix
+        backend:
+          serviceName: entity-ident
+          servicePort: 5000

remove-local.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+echo "Removing deployments and services..."
+kubectl delete -f kubernetes/entity-ident-deployment.yaml
+kubectl delete -f kubernetes/entity-ident-service.yaml
+kubectl delete -f kubernetes/minikube-ingress.yaml