Welcome to Stack Simplify

Author: Kalyan Reddy Daida

00-Docker-Images/03-kube-frontend-nginx/README.md

@@ -0,0 +1,53 @@
+# Build a Docker Image
+
+## Step-01: Pre-requisite Step
+- Create your Docker hub account. 
+- https://hub.docker.com/
+- **Important Note**: In the below listed commands wherever you see **stacksimplify** you can replace with your docker hub account id. 
+
+
+## Step-02: Create Dockerfile and copy our customized nginx default.conf
+- **Dockerfile**
+```Dockerfile 
+FROM nginx
+COPY default.conf /etc/nginx/conf.d
+```
+- **default.conf**
+  - Replace your backend cluster-ip service name and port in `proxy_pass`
+```conf
+server {
+    listen       80;
+    server_name  localhost;
+    location / {
+    # Update your backend application Kubernetes Cluster-IP Service name  and port below      
+    # proxy_pass http://<Backend-ClusterIp-Service-Name>:<Port>;      
+    proxy_pass http://my-backend-service:8080;
+    }
+    error_page   500 502 503 504  /50x.html;
+    location = /50x.html {
+        root   /usr/share/nginx/html;
+    }
+}
+```
+
+## Step-03: Build Docker Image & run it
+```
+# Build Docker Image
+docker build -t stacksimplify/kube-frontend-nginx:1.0.0 .
+
+# Replace your docker hub account Id
+docker build -t <your-docker-hub-id>/kube-frontend-nginx:1.0.0 .
+```
+
+## Step-04: Push the Docker image to docker hub
+```
+# Push Docker Image to Docker Hub
+docker push stacksimplify/kube-frontend-nginx:1.0.0 
+
+# Replace your docker hub account Id
+docker push <your-docker-hub-id>/kube-frontend-nginx:1.0.0 
+```
+
+## Step-05: Verify the same on docker hub
+- Login to docker hub and verify the image we have pushed
+- Url: https://hub.docker.com/repositories

00-Docker-Images/03-kube-frontend-nginx/V1-Release/default.conf

@@ -11,6 +11,8 @@ server {
     #}
 
     location / {
+    # Update your backend application Kubernetes Cluster-IP Service name  and port below
+    # proxy_pass http://<Backend-ClusterIp-Service-Name>:<Port>;  
     proxy_pass http://my-backend-service:8080;
     }
 

05-Services-with-kubectl/README.md

@@ -32,7 +32,8 @@ Observation: We don't need to specify "--type=ClusterIp" because default setting
 - We have implemented **NodePort Service** multiple times so far (in pods, replicasets and deployments), even then we are going to implement one more time to get a full architectural view in relation with ClusterIp service. 
 - Create a deployment for Frontend Application (Nginx acting as Reverse Proxy)
 - Create a NodePort service for load balancing frontend application. 
-- **Important Note:** In Nginx reverse proxy, ensure backend service name "my-backend-service" is updated when you are building the frontend container. We already built it and put ready for this demo (stacksimplify/kube-frontend-nginx:1.0.0)
+- **Important Note:** In Nginx reverse proxy, ensure backend service name `my-backend-service` is updated when you are building the frontend container. We already built it and put ready for this demo (stacksimplify/kube-frontend-nginx:1.0.0)
+- **Docker Image Location:** https://hub.docker.com/repository/docker/stacksimplify/kube-frontend-nginx
 ```
 # Create Deployment for Backend Rest App
 kubectl create deployment my-frontend-nginx-app --image=stacksimplify/kube-frontend-nginx:1.0.0 
@@ -59,15 +60,16 @@ http://<node1-public-ip>:<Node-Port>/hello
 server {
     listen       80;
     server_name  localhost;
-
     location / {
+    # Update your backend application Kubernetes Cluster-IP Service name  and port below      
+    # proxy_pass http://<Backend-ClusterIp-Service-Name>:<Port>;      
     proxy_pass http://my-backend-service:8080;
     }
-
     error_page   500 502 503 504  /50x.html;
     location = /50x.html {
         root   /usr/share/nginx/html;
     }
+}
 ```
 
 ## Pending Topics