Update README.md

README.md

@@ -67,13 +67,15 @@ spec:
         - --validating-webhook=:8443                        
         - --validating-webhook-certificate=/usr/local/certificates/cert
         - --validating-webhook-key=/usr/local/certificates/key
-        *** ADD >>> - --tcp-services-configmap=ingress-nginx/tcp-services <<< ADD ***
-        *** ADD >>> - --udp-services-configmap=ingress-nginx/udp-services <<< ADD ***
+>>> ADD 
+        - --tcp-services-configmap=ingress-nginx/tcp-services
+        - --udp-services-configmap=ingress-nginx/udp-services
+<<< ADD
         env:     
 [...]
 ```
 
-### Deploy nginx-service and expose via nginx-ingress on TCP-port 9000
+### Deploy my-nginx-service and expose via nginx-ingress on TCP-port 9000
 my-nginx-deployment.yml:
 ```
 apiVersion: apps/v1
@@ -129,7 +131,9 @@ Find the `ports:`-section of the `ingress-nginx-controller` service and *ADD* th
 [...]
 spec:   
     clusterIP: 10.43.237.255                                                              
-    externalTrafficPolicy: Cluster
+>>> CHANGE externalTrafficPolicy from Cluster to Local if original client-IP is desirable
+    externalTrafficPolicy: Local
+<<< CHANGE
     ports:
     - name: http                                                                          
       nodePort: 30312                                                                     
@@ -141,12 +145,12 @@ spec:
       port: 443
       protocol: TCP                                                                       
       targetPort: https      
-*** ADD >>>
+>>> ADD
     - name: proxied-tcp-9000
       port: 9000
       protocol: TCP
       targetPort: 9000
-<<< ADD ***
+<<< ADD 
 [...]
 ```
 Finally, we need to glue nginx-ingress with the my-nginx app. This will be done with the config-map `tcp-services-config-map.yml` referenced earlier in the nginx-ingress deployment definition:
@@ -158,7 +162,7 @@ metadata:
   name: tcp-services
   namespace: ingress-nginx
 data:
-  9000: "default/my-nginx:80::PROXY"
+  9000: "default/my-nginx:80"
 ```
 Apply with `kubectl apply -f tcp-services-config-map.yml`:
 ```
@@ -185,3 +189,15 @@ dominik@muggler:~$ curl -s http://10.62.94.246:9000
 </body>
 </html>
 ```
+Check logs of my-nginx POD:
+```
+root@k3s-master:/k3s# kubectl get pods
+NAME                        READY   STATUS    RESTARTS   AGE
+my-nginx-65c68bbcdf-xkhqj   1/1     Running   0          90m
+```
+```
+kubectl logs my-nginx-65c68bbcdf-xkhqj -f
+[...]
+10.42.0.18 - - [23/Aug/2020:16:38:33 +0000] "PROXY TCP4 10.62.94.1 10.42.0.18 48558 9000" 400 157 "-" "-" "-"
+[...]
+```