manifests for k8s todolist

.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 +1,23 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: todoapp
+  namespace: todoapp
+spec:
+  containers:
+  - name: todoapp
+    image: nmakivchuk01/todoapp:3.0.0
+    ports:
+    - containerPort: 8080
+    livenessProbe:
+      httpGet:
+        path: api/liveness
+        port: 8080
+      initialDelaySeconds: 60
+      periodSeconds: 5
+    readinessProbe:
+      httpGet:
+        path: api/readiness
+        port: 8080
+      initialDelaySeconds: 5
+      periodSeconds: 5

Dockerfile

@@ -0,0 +1,14 @@
+ARG PYTHON_VERSION=3.8
+
+FROM python:${PYTHON_VERSION}
+
+WORKDIR /app
+
+COPY ./src .
+
+RUN pip install --upgrade pip && \
+    pip install -r requirements.txt
+
+EXPOSE 8080
+
+ENTRYPOINT ["sh", "-c", "python manage.py migrate && python manage.py runserver 0.0.0.0:8080"]

README.md

@@ -53,3 +53,30 @@ 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.
+
+# Instructions on how to apply all manifests
+```
+kubectl apply -f ./.infrastructure/namespace.yml
+
+kubectl apply -f ./.infrastructure/todoapp-pod.yml
+
+kubectl apply -f ./.infrastructure/busybox.yml
+```
+
+# Instructions on how to test ToDo application
+```
+kubectl port-forward pod/todoapp 8080:8080 -n todoapp
+```
+# Instructions on how to test application
+1. To get the IP address of Todo App:
+```
+kubectl get pods -n todoapp -o wide
+```
+2. To get access to busybox shell:
+```
+kubectl -n todoapp exec -it busybox -- sh
+```
+3. To send curl request:
+```
+curl [TodoApp_IP]:8080
+```

src/api/urls.py

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

src/api/views.py

@@ -8,6 +8,10 @@
 from django.utils import timezone
 import time
 
+startTime = time.time()
+delayTime = 40
+
+
 class IsCreatorOrReadOnly(permissions.BasePermission):
     """
     Object-level permission to only allow owners of an object to edit it.
@@ -55,4 +59,13 @@ 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(request):
+    return HttpResponse("live", status=200)
+
+def readiness(request):
+    if time.time() < startTime + delayTime: 
+        return HttpResponse("Waiting for ...", status=503)
+    else:
+        return HttpResponse("Ready", status=200)