Startup etcd

docs/07-bootstrapping-etcd.md

@@ -4,12 +4,24 @@ Kubernetes components are stateless and store cluster state in [etcd](https://gi
 
 ## Prerequisites
 
-The commands in this lab must be run on each controller instance: `controller-0`, `controller-1`, and `controller-2`. Login to each controller instance using the `gcloud` command. Example:
+The commands in this lab must be run on each controller instance: `controller-0`, `controller-1`, and `controller-2`. Login to each controller instance:
 
+```gcloud```
 ```
 gcloud compute ssh controller-0
 ```
 
+```az```
+```
+az ssh vm --name controller-0 --local-user azureuser
+```
+
+OR
+
+```
+ssh -i $HOME/.ssh/k8sthehardway azureuser@$(az vm show -d --name controller-0 --query "publicIps" -o tsv)
+```
+
 ### Running commands in parallel with tmux
 
 [tmux](https://github.com/tmux/tmux/wiki) can be used to run commands on multiple compute instances at the same time. See the [Running commands in parallel with tmux](01-prerequisites.md#running-commands-in-parallel-with-tmux) section in the Prerequisites lab.
@@ -28,29 +40,33 @@ wget -q --show-progress --https-only --timestamping \
 Extract and install the `etcd` server and the `etcdctl` command line utility:
 
 ```
-{
 tar -xvf etcd-v3.4.15-linux-amd64.tar.gz
 sudo mv etcd-v3.4.15-linux-amd64/etcd* /usr/local/bin/
-}
 ```
 
 ### Configure the etcd Server
 
 ```
-{
 sudo mkdir -p /etc/etcd /var/lib/etcd
 sudo chmod 700 /var/lib/etcd
 sudo cp ca.pem kubernetes-key.pem kubernetes.pem /etc/etcd/
-}
 ```
 
 The instance internal IP address will be used to serve client requests and communicate with etcd cluster peers. Retrieve the internal IP address for the current compute instance:
 
+```gcloud```
 ```
 INTERNAL_IP=$(curl -s -H "Metadata-Flavor: Google" \
   http://metadata.google.internal/computeMetadata/v1/instance/network-interfaces/0/ip)
 ```
 
+```az```
+```
+sudo apt-get update
+sudo apt-get install -y jq
+INTERNAL_IP=$(curl -s -H Metadata:true --noproxy "*" "http://169.254.169.254/metadata/instance?api-version=2021-02-01" | jq -r '.network.interface[0].ipv4.ipAddress[0].privateIpAddress')
+```
+
 Each etcd member must have a unique name within an etcd cluster. Set the etcd name to match the hostname of the current compute instance:
 
 ```
@@ -96,11 +112,9 @@ EOF
 ### Start the etcd Server
 
 ```
-{
 sudo systemctl daemon-reload
 sudo systemctl enable etcd
 sudo systemctl start etcd
-}
 ```
 
 > Remember to run the above commands on each controller node: `controller-0`, `controller-1`, and `controller-2`.