[app] Remove unimportant files

* Dockerfile
* k8s resources
* yarn.lock

app/client/Dockerfile

-FROM node:alpine as todo-app-build
-
-WORKDIR /client
-
-COPY package.json yarn.lock README.md ./
-
-RUN yarn
-
-COPY ./public ./public
-
-COPY ./src ./src
-
-ENV REACT_APP_baseAPIURL=<backend-app-service-ip>:<port>
-
-RUN yarn build
-
-FROM nginx:latest
-
-LABEL maintainer=Aamir-Pinger
-
-COPY --from=todo-app-build /client/build/ /usr/share/nginx/html
-
-EXPOSE 80

app/client/client-app-deploy.yaml

-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: todo-client-app-deploy
-spec:
-  replicas: 3
-  selector:
-    matchLabels:
-      app: todo-client-app
-  template:
-    metadata:
-      labels:
-        app: todo-client-app
-    spec:
-      containers:
-      - image: todo-client-kubernetes-app:latest
-        name: container1
-        imagePullPolicy: IfNotPresent
\ No newline at end of file

app/client/client-app-service.yaml

-apiVersion: v1
-kind: Service
-metadata:
-  name: todo-client-service
-spec:
-  selector:
-    app: todo-client-app
-  ports:
-  - port: 80
-    targetPort: 80
-  type: LoadBalancer
\ No newline at end of file

app/server/Dockerfile

-FROM node:alpine
-
-WORKDIR /server
-
-COPY package*.json yarn.lock ./
-
-RUN yarn
-
-COPY ./src ./src
-
-EXPOSE 5000
-
-CMD [ "yarn", "start" ]
\ No newline at end of file

app/server/mongodb-pod.yaml

-apiVersion: v1
-kind: Pod
-metadata:
-  name: mongodb
-  labels:
-    app: todo-mongodb
-spec:
-  volumes:
-  - name: todo-mongo-vol
-    persistentVolumeClaim:
-      claimName: todo-pvc
-  containers:
-  - image: mongo
-    name: container1
-    command:
-    - mongod
-    - "--bind_ip"
-    - "0.0.0.0"
-    ports:
-    - containerPort: 27017
-    volumeMounts:
-    - name: todo-mongo-vol
-      mountPath: /data/db
\ No newline at end of file

app/server/mongodb-service.yaml

-apiVersion: v1
-kind: Service
-metadata:
-  labels:
-    app: todo-mongodb
-  name: todo-mongo-service
-spec:
-  ports:
-    - port: 27017
-      targetPort: 27017
-  selector:
-    app: todo-mongodb
\ No newline at end of file

app/server/persistent-vol-claim-server-app.yaml

-apiVersion: v1
-kind: PersistentVolumeClaim
-metadata:
-  name: todo-pvc
-spec:
-  accessModes:
-  - ReadWriteMany
-  resources:
-    requests:
-      storage: 1G
-  storageClassName: ""

app/server/persistent-vol-server-app.yaml

-apiVersion: v1
-kind: PersistentVolume
-metadata:
-  name: todo-app-pv
-spec:
- accessModes:
- - ReadWriteMany
- capacity:
-   storage: 1G
- hostPath:
-   path: /tmp/todo-pv

app/server/server-app-configs.yaml

-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: server-side-configs
-data:
-  PORT: "5000"
-  CLIENT: <front-end-app-service-ip>:<port>
-  MONGODB_URL: mongodb://todo-mongo-service:27017/todo-k8s
\ No newline at end of file

app/server/server-app-deploy.yaml

-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: todo-server-app-deploy
-spec:
-  replicas: 3
-  selector:
-    matchLabels:
-      app: todo-server-app
-  template:
-    metadata:
-      labels:
-        app: todo-server-app
-    spec:
-      containers:
-      - image: todo-server-kubernetes-app:latest
-        name: container1
-        ports:
-        - containerPort: 5000
-        imagePullPolicy: IfNotPresent
-        envFrom:
-        - configMapRef:
-            name: server-side-configs
-        - secretRef:
-            name: server-side-secrets
\ No newline at end of file

app/server/server-app-service.yaml

-apiVersion: v1
-kind: Service
-metadata:
-  name: todo-backend-service
-spec:
-  ports:
-  - port: 5000
-    targetPort: 5000
-  selector:
-    app: todo-server-app
-  type: LoadBalancer
\ No newline at end of file