- renamed files so that it indexes it on the search engines with mean…

…ingful keywords

- added CNAME to redirect the site to kubernetes-tutorial.schoolofdevops.com
- misc changes and fixes  during the course run

chapters/10_kubernetes_autoscaling.md

@@ -35,7 +35,7 @@ Deploy  metric server with the following commands,
 ```
 cd ~
 git clone  https://github.com/kubernetes-incubator/metrics-server.git
-kubectl apply -f metrics-server/deploy/1.8+/
+kubectl apply -f metrics-server/deploy/kubernetes/
 ```
 
 Validate
@@ -92,8 +92,8 @@ metadata:
   name: vote
 spec:
   minReplicas: 4
-  maxReplicas: 15
-  targetCPUUtilizationPercentage: 40
+  maxReplicas: 45
+  targetCPUUtilizationPercentage: 70
   scaleTargetRef:
     apiVersion: apps/v1
     kind: Deployment
@@ -138,7 +138,7 @@ spec:
       containers:
       - name: siege
         image: schoolofdevops/loadtest:v1
-        command: ["siege",  "--concurrent=5", "--benchmark", "--time=10m", "http://vote"]
+        command: ["siege",  "--concurrent=5", "--benchmark", "--time=6m", "http://vote"]
       restartPolicy: Never
   backoffLimit: 4
 ```

chapters/9-vote-configmaps_and_secrets.md

@@ -1,185 +0,0 @@
-# Configurations Management with ConfigMaps and Secrets
-
-Configmap is one of the ways to provide configurations to your application.
-
-### Injecting env variables with configmaps
-Create our configmap for vote app
-
-file:  projects/instavote/dev/vote-cm.yaml
-
-```
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: vote
-  namespace: instavote
-data:
-  OPTION_A: Visa
-  OPTION_B: Mastercard
-```
-
-In the above given configmap, we define two environment variables,
-
-  1. OPTION_A=EMACS
-  2. OPTION_B=VI
-
-
-Lets create the configmap object
-
-```
-kubectl get cm
-kubectl apply -f vote-cm.yaml
-kubectl get cm
-kubectl describe cm vote
-
-
-```
-In order to use this configmap in the deployment, we need to reference it from the deployment file.
-
-Check the deployment file for vote add for the following block.
-
-file: `vote-deploy.yaml`
-
-```
-...
-    spec:
-      containers:
-      - image: schoolofdevops/vote
-        imagePullPolicy: Always
-        name: vote
-        envFrom:
-          - configMapRef:
-              name: vote
-        ports:
-        - containerPort: 80
-          protocol: TCP
-        restartPolicy: Always
-```
-
-So when you create your deployment, these configurations will be made available to your application. In this example, the values defined in the configmap (Visa and Mastercard) will override the default values(CATS and DOGS) present in your source code.
-
-```
-kubectl apply -f vote-deploy.yaml
-```
-
-Watch the monitoring screen for deployment in progress.
-
-```
-kubectl get deploy --show-labels
-kubectl get rs --show-labels
-kubectl  rollout status deploy/vote
-
-```
-
-![ConfigMap Dashboard.\label{fig:captioned_image}](images/Configmap.png)
-
-
-
-### Note: Automatic Updation of deployments on ConfigMap  Updates
-
-Currently, updating configMap does not ensure a new rollout of a deployment. What this means is even after updading configMaps, pods will not immediately reflect the changes.  
-
-There is a feature request for this https://github.com/kubernetes/kubernetes/issues/22368
-
-Currently, this can be done by using immutable configMaps.  
-
-  * Create a configMaps and apply it with deployment.
-  * To update, create a new configMaps and do not update the previous one. Treat it as immutable.
-  * Update deployment spec to use the new version of the configMaps. This will ensure immediate update.
-
-
-## Enabling HTTP Authentication for Traefik  with Secrets
-
-In this part of the lab, you will
-
-  * Create a secret with an existing file
-  * Modify a ingress rule to use that secret via annotations
-  * Validate if traefik, the ingress controller, automatically picks up the configurations and enables http auth s
-
-Lets create  htpasswd spec as Secret   
-
-
-```
-  apt install -yq apache2-utils
-  htpasswd -c auth devops
-```
-
-
-  Or use [Online htpasswd generator](http://www.htaccesstools.com/htpasswd-generator/) to generate a htpasswd spec. if you use the online generator, copy the contents to a file by name `auth` in the current directory.
-
-  Then generate the secret as,
-
-```
-  kubectl create secret generic mysecret --from-file auth
-
-  kubectl get secret
-
-  kubectl describe secret mysecret
-```
-
-  And then add annotations to the ingress object so that it is read by the ingress controller to update configurations.
-
-`file: vote-ing.yaml`
-
-```
-apiVersion: extensions/v1beta1
-kind: Ingress
-metadata:
-  name: vote
-  annotations:
-    kubernetes.io/ingress.class: traefik
-    ingress.kubernetes.io/auth-type: "basic"
-    ingress.kubernetes.io/auth-secret: "mysecret"
-spec:
-  rules:
-    - host: vote.example.com
-      http:
-        paths:
-          - path: /
-            backend:
-              serviceName: vote
-              servicePort: 82
-    - host: results.example.com
-      http:
-        paths:
-          - path: /
-            backend:
-              serviceName: results
-              servicePort: 81
-
-```
-
-where,
-
-  *  *ingress.kubernetes.io/auth-type: "basic"* defines authentication type that needs to be added.
-  *  *ingress.kubernetes.io/auth-secret: "mysecret"* refers to the secret created earlier.
-
-apply
-
-```
-kubectl apply -f vote-ing.yaml
-kubectl get ing/vote -o yaml
-```
-
-Observe the annotations field. No sooner than you apply this spec, ingress controller reads the event and a basic http authentication is set with the secret you added.
-
-
-```bash
-
-                      +----------+
-       +--update----> | traefik  |
-       |              |  configs |
-       |              +----------+
-  +----+----+--+            ^
-  | ingress    |            :
-  | controller |            :
-  +----+-------+            :
-       |              +-----+-------+
-       +---watch----> | ingress     | <------- user
-                      | annotations |
-                      +-------------+
-```
-
-
-
-![Name Based Routing](../images/domain-name.png)

chapters/CNAME

@@ -0,0 +1 @@
+kubernetes-tutorial.schoolofdevops.com

chapters/index.md

@@ -1,10 +1,10 @@
-# Kubernetes Lab Guide
+# Kubernetes Tutorial
 
-Welcome to the Kubernetes Course  by School of Devops
+Welcome to the Kubernetes Tutorial  by School of Devops
 
-This is a Lab Guide which goes along with the Docker and Kubernetes courses conducted by School of Devops.
+This document was originally created as  a Lab Guide to go along with the [Kubernetes Course by School of Devops](http://www.schoolofdevops.com/). However, you could also use it on its own now to practice learning kubernetes topics.
 
-For information about the devops trainign courses visit [schoolofdevops.net](http://schoolofdeovps.net).
+If you still believe you could learn better and faster by audio visual means, definitely consider subscribing to our course at  [schoolofdevops.com](http://schoolofdeovps.com).
 
 
 ## Team