Solution Manifest

.infrastructure/busybox.yml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: busybox
+  namespace: todoapp
+spec:
+  containers:
+    - name: busybox
+      image: ikulyk404/busyboxplus:curl
+      args:
+        - sleep
+        - "1000"

.infrastructure/namespace.yml

@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: todoapp

.infrastructure/todoapp-pod.yml

@@ -0,0 +1,25 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: todoapp
+  namespace: todoapp
+  labels:
+    app: todoapp
+spec:
+  containers:
+    - name: todoapp
+      image: garimanblack/todoapp:3.0.0
+      ports:
+        - containerPort: 8080
+      livenessProbe:
+        httpGet:
+          path: /api/liveness_check
+          port: 8080
+        initialDelaySeconds: 60
+        periodSeconds: 5
+      readinessProbe:
+        httpGet:
+          path: /api/readiness_check
+          port: 8080
+        initialDelaySeconds: 5
+        periodSeconds: 5

README.md

@@ -53,3 +53,36 @@ metadata:
 1. `README.md` file should contain instructions on how to test application using the
 `busyboxplus:curl` container
 1. Create PR with your changes and attach it for validation on a platform.
+
+
+
+
+# --- Apply manifests to create pods and resources:
+# --- To launch a container with a ToDo application:
+
+kubectl apply -f .infrastructure/todoapp-pod.yml
+
+# --- To run a container with busybox (used to check the availability of your application):
+
+kubectl apply -f .infrastructure/busybox.yml
+
+# --- Testing the ToDo application using port-forward:
+
+kubectl port-forward pod/todoapp 8081:8080 -n todoapp
+
+# You can then open your browser and go to http://127.0.0.1:8081  or http://localhost:8080 to see the ToDo app.
+# If you need to stop port forwarding, simply end the command with Ctrl+C
+
+# --- Get the IP address of TodoApp:
+
+kubectl get pods -n todoapp -0 wide
+
+# --- Access the BusyBox shell:
+
+kubectl -n todoapp exec -it busybox -- sh
+
+# --- To check:
+
+curl <Ip Address>:8080
+
+# The busybox container will be automatically deleted when you exit it using the exit command.

src/Dockerfile

@@ -0,0 +1,12 @@
+FROM python:3.8
+
+WORKDIR /app
+
+COPY . .
+
+RUN pip install -r requirements.txt
+
+EXPOSE 8080
+
+ENTRYPOINT [ "sh", "-c", "python manage.py migrate && python manage.py runserver 0.0.0.0:8080" ]
+

src/api/urls.py

@@ -10,5 +10,7 @@
 
 app_name = "api"
 urlpatterns = [
-    path("", include(router.urls))
+    path("", include(router.urls)),
+    path("liveness_check/", views.liveness_check, name="liveness_check"),
+    path("readiness_check/", views.readiness_check, name="readiness_check")
 ]

src/api/views.py

@@ -8,6 +8,10 @@
 from django.utils import timezone
 import time
 
+
+start_time = time.time()
+startup_period = 20
+
 class IsCreatorOrReadOnly(permissions.BasePermission):
     """
     Object-level permission to only allow owners of an object to edit it.
@@ -55,4 +59,15 @@ class TodoViewSet(viewsets.ModelViewSet):
     def perform_create(self, serializer):
         user = self.request.user
         creator = user if user.is_authenticated else None
-        serializer.save(creator=creator)
+        serializer.save(creator=creator)
+
+
+def liveness_check(request):
+    return HttpResponse("Liveness_Active", status=200)
+
+
+def readiness_check(request):
+    if time.time() < start_time + startup_period:
+        return HttpResponse("Not Ready", status=503)
+    else:
+        return HttpResponse("Ready", status=200)