Adapt 05 - Kubernetes conf files generation

docs/05-kubernetes-configuration-files.md

@@ -10,12 +10,10 @@ In this section you will generate kubeconfig files for the `controller manager`,
 
 Each kubeconfig requires a Kubernetes API Server to connect to. To support high availability the IP address assigned to the external load balancer fronting the Kubernetes API Servers will be used.
 
-Retrieve the `kubernetes-the-hard-way` static IP address:
+Define the static public IP address (you need to replace YOUR_EXTERNAL_IP by your external IP address):
 
 ```bash
-KUBERNETES_PUBLIC_ADDRESS=$(gcloud compute addresses describe kubernetes-the-hard-way \
+KUBERNETES_PUBLIC_ADDRESS=YOUR_EXTERNAL_IP
-  --region $(gcloud config get-value compute/region) \
-  --format 'value(address)')
 ```
 
 ### The kubelet Kubernetes Configuration File
@@ -62,26 +60,24 @@ worker-2.kubeconfig
 Generate a kubeconfig file for the `kube-proxy` service:
 
 ```bash
-{
+kubectl config set-cluster kubernetes-the-hard-way \
-  kubectl config set-cluster kubernetes-the-hard-way \
   --certificate-authority=ca.pem \
   --embed-certs=true \
   --server=https://${KUBERNETES_PUBLIC_ADDRESS}:6443 \
   --kubeconfig=kube-proxy.kubeconfig
 
-  kubectl config set-credentials system:kube-proxy \
+kubectl config set-credentials system:kube-proxy \
   --client-certificate=kube-proxy.pem \
   --client-key=kube-proxy-key.pem \
   --embed-certs=true \
   --kubeconfig=kube-proxy.kubeconfig
 
-  kubectl config set-context default \
+kubectl config set-context default \
   --cluster=kubernetes-the-hard-way \
   --user=system:kube-proxy \
   --kubeconfig=kube-proxy.kubeconfig
 
-  kubectl config use-context default --kubeconfig=kube-proxy.kubeconfig
+kubectl config use-context default --kubeconfig=kube-proxy.kubeconfig
-}
 ```
 
 Results:
@@ -95,26 +91,24 @@ kube-proxy.kubeconfig
 Generate a kubeconfig file for the `kube-controller-manager` service:
 
 ```bash
-{
+kubectl config set-cluster kubernetes-the-hard-way \
-  kubectl config set-cluster kubernetes-the-hard-way \
   --certificate-authority=ca.pem \
   --embed-certs=true \
   --server=https://127.0.0.1:6443 \
   --kubeconfig=kube-controller-manager.kubeconfig
 
-  kubectl config set-credentials system:kube-controller-manager \
+kubectl config set-credentials system:kube-controller-manager \
   --client-certificate=kube-controller-manager.pem \
   --client-key=kube-controller-manager-key.pem \
   --embed-certs=true \
   --kubeconfig=kube-controller-manager.kubeconfig
 
-  kubectl config set-context default \
+kubectl config set-context default \
   --cluster=kubernetes-the-hard-way \
   --user=system:kube-controller-manager \
   --kubeconfig=kube-controller-manager.kubeconfig
 
-  kubectl config use-context default --kubeconfig=kube-controller-manager.kubeconfig
+kubectl config use-context default --kubeconfig=kube-controller-manager.kubeconfig
-}
 ```
 
 Results:
@@ -128,26 +122,24 @@ kube-controller-manager.kubeconfig
 Generate a kubeconfig file for the `kube-scheduler` service:
 
 ```bash
-{
+kubectl config set-cluster kubernetes-the-hard-way \
-  kubectl config set-cluster kubernetes-the-hard-way \
   --certificate-authority=ca.pem \
   --embed-certs=true \
   --server=https://127.0.0.1:6443 \
   --kubeconfig=kube-scheduler.kubeconfig
 
-  kubectl config set-credentials system:kube-scheduler \
+kubectl config set-credentials system:kube-scheduler \
   --client-certificate=kube-scheduler.pem \
   --client-key=kube-scheduler-key.pem \
   --embed-certs=true \
   --kubeconfig=kube-scheduler.kubeconfig
 
-  kubectl config set-context default \
+kubectl config set-context default \
   --cluster=kubernetes-the-hard-way \
   --user=system:kube-scheduler \
   --kubeconfig=kube-scheduler.kubeconfig
 
-  kubectl config use-context default --kubeconfig=kube-scheduler.kubeconfig
+kubectl config use-context default --kubeconfig=kube-scheduler.kubeconfig
-}
 ```
 
 Results:
@@ -161,26 +153,24 @@ kube-scheduler.kubeconfig
 Generate a kubeconfig file for the `admin` user:
 
 ```bash
-{
+kubectl config set-cluster kubernetes-the-hard-way \
-  kubectl config set-cluster kubernetes-the-hard-way \
   --certificate-authority=ca.pem \
   --embed-certs=true \
   --server=https://127.0.0.1:6443 \
   --kubeconfig=admin.kubeconfig
 
-  kubectl config set-credentials admin \
+kubectl config set-credentials admin \
   --client-certificate=admin.pem \
   --client-key=admin-key.pem \
   --embed-certs=true \
   --kubeconfig=admin.kubeconfig
 
-  kubectl config set-context default \
+kubectl config set-context default \
   --cluster=kubernetes-the-hard-way \
   --user=admin \
   --kubeconfig=admin.kubeconfig
 
-  kubectl config use-context default --kubeconfig=admin.kubeconfig
+kubectl config use-context default --kubeconfig=admin.kubeconfig
-}
 ```
 
 Results:
@@ -195,7 +185,7 @@ Copy the appropriate `kubelet` and `kube-proxy` kubeconfig files to each worker
 
 ```bash
 for instance in worker-0 worker-1 worker-2; do
-  gcloud compute scp ${instance}.kubeconfig kube-proxy.kubeconfig ${instance}:~/
+  scp ${instance}.kubeconfig kube-proxy.kubeconfig root@${instance}:~/
 done
 ```
 
@@ -203,7 +193,7 @@ Copy the appropriate `kube-controller-manager` and `kube-scheduler` kubeconfig f
 
 ```bash
 for instance in controller-0 controller-1 controller-2; do
-  gcloud compute scp admin.kubeconfig kube-controller-manager.kubeconfig kube-scheduler.kubeconfig ${instance}:~/
+  scp admin.kubeconfig kube-controller-manager.kubeconfig kube-scheduler.kubeconfig root@${instance}:~/
 done
 ```