Azure Classroomnotes 27/Sep/2023

Azure CLI

• Create a linux VM

#!/bin/bash

# exists(string, substring)
# This function tells whether the string contains substring
function exists()
{
    STR=$1
    SUB=$2
    if [[ "$STR" == *"$SUB"* ]]; then
        echo true
    else 
        echo false
    fi
}


# create_resource_group(name,location)
# This function creates resource group if it does not exist
function create_resource_group()
{
    name=$1
    location=$2
    if [ $(az group exists --name $name) = true ]; then 
        echo "resource group $name already exists"
    else
        az group create --name $name --location $location 
    fi
}

# create_vm(name, group, location, username, password, size, image)
# This function creates virtual machine if it does not exist
function create_vm()
{
    name=$1
    group=$2
    location=${3:-eastus}
    username=${4:-Dell}
    password=${5:-QualityThought@1234}
    size=${6:-Standard_B1s}
    image=${7:-Ubuntu2204}
    vms=$(az vm list --resource-group "fromcli"  --query "[].name" --output tsv)
    if [[ $(exists "$vms" "$name") == true ]]; then
        echo "vm already exists"
    else 
        az vm create \
            --name "$name" \
            --resource-group "$group" \
            --location "$location" \
            --admin-password "$password" \
            --admin-username "$username" \
            --authentication-type 'password' \
            --size "$size" \
            --nsg-rule "SSH" \
            --image "$image"
    fi

}



rg_name="fromcli"
location="eastus"
vm_name="myfirstvm"
vm_image="Ubuntu2204"
vm_username="qtdevops"
vm_password="QualityThought@1234"
vm_size="Standard_B1s"

create_resource_group ${rg_name} ${location}
create_vm $vm_name $rg_name $location $vm_username $vm_password $vm_size $vm_image
#create_vm "checkingmyluck" "fromcli"

• Execute with bash -x and google around to enhance the scripts