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Assigning Public IP to Virtual Machines

Requirements​

  1. Create an Azure VM named devops-vm using any available Ubuntu image, with the VM size Standard_B1s.
  2. Generate an SSH public key on the azure-client host and associate it with the VM for SSH access.
  3. Associate a Static Public IP address named devops-pip with this VM.
  4. Ensure the VM is accessible via SSH using the generated public key.
Note

The solution can be implemented using both the Azure Cloud Console and the Azure CLI. This document outlines the CLI-based approach to accomplish these tasks. It is recommended to first explore the Azure Cloud Console for hands-on experience and a practical understanding of the process before utilizing the CLI approach, unless specifically instructed otherwise.

Steps​

AssignPublicIPTOMachine.sh
# Set Variables for Resources
RESOURCE_GROUP=$(az group list --query "[?contains(name, 'kml')].name" --output tsv)
LOCATION="eastus"
VM_NAME="devops-vm"
IMAGE="Ubuntu2404"
SIZE="Standard_B1s"
ADMIN_USERNAME="azureuser"
PUBLIC_IP_NAME="devops-pip"
SSH_KEY_PATH="$HOME/.ssh/id_rsa.pub"
SSH_KEY=$(cat $SSH_KEY_PATH)

# Generate SSH Key
ssh-keygen -t rsa -b 2048 -f $HOME/.ssh/id_rsa -q -N ""

# Create a Static Public IP Address:
az network public-ip create \
  --resource-group $RESOURCE_GROUP \
  --name devops-pip \
  --location eastus \
  --sku Standard \
  --allocation-method Static

# Get the Static Public ip 
az network public-ip show \
  --resource-group $RESOURCE_GROUP \
  --name devops-pip \
  --query "{Name:name, Location:location, IPAddress:ipAddress}" \
  --output table

# Create the VM with speciifed details
az vm create \
  --resource-group $RESOURCE_GROUP \
  --name $VM_NAME \
  --image $IMAGE \
  --size $SIZE \
  --admin-username $ADMIN_USERNAME \
  --ssh-key-values $SSH_KEY_PATH \
  --nics $NIC_NAME \
  --os-disk-size-gb 128 \
  --location $LOCATION  \
  --storage-sku Standard_LRS

# get the VM details
az vm show \
  --resource-group kml_rg_main-143f9f02722d4cff \
  --name devops-vm \
  --query "networkProfile.networkInterfaces[0].id" \
  --output tsv
devops-vmVMNic

# Remove the Assigned Public IP of the VM
az network nic update \
  --resource-group kml_rg_main-143f9f02722d4cff \
  --name devops-vmVMNic \
  --remove ipConfigurations[0].publicIpAddress

#  Attach the Static Public IP to the VM
az network nic ip-config update \
  --resource-group kml_rg_main-143f9f02722d4cff \
  --nic-name devops-vmVMNic \
  --name ipconfigdevops-vm \
  --public-ip-address devops-pip

# Verify if the IP has been associated with VM
az network nic show \
  --resource-group kml_rg_main-143f9f02722d4cff \
  --name devops-vmVMNic \
  --query "ipConfigurations[0].publicIpAddress.id" \
  --output tsv

# Get the Static Public ip 
az network public-ip show \
  --resource-group kml_rg_main-143f9f02722d4cff \
  --name devops-pip \
  --query "ipAddress" \
  --output tsv
#172.178.67.151

# Try ssh into the VM with the IP obtained before
ssh azureuser@172.178.67.151

Resources​

Azure CLI Docs