Terraform plan for azure failing in Jenkins pipeline - jenkins

Question

Below is the Jenkins DSL groovy for setting the Terraform path and retrieving the service principal credentials to run Terraform init and Terraform plan.
When ran against Terraform 12.0 version I get the error below even though I tested using the same Azure service principal credentials mentioned in the pipeline as below using a Jenkins free style job and az login worked fine.
+ terraform init -input=false
[0m[1mInitializing modules...[0m
[0m[1mInitializing the backend...[0m
[31m
[1m[31mError: [0m[0m[1mError building ARM Config: Error populating Client ID from the Azure CLI: No Authorization Tokens were found - please re-authenticate using `az login`.[0m
[0m[0m[0m
pipeline{
agent any
stages{
stage('Set Terraform path') {
steps {
script {
def tfHome = tool name: 'Terraform'
env.PATH = "${tfHome}:${env.PATH}"
}
sh 'terraform version'
}
}
stage('Provision infrastructure') {
steps {
dir('environments/dev')
{
withCredentials([azureServicePrincipal('xx-xxx-subscription-azure-sp')]) {
sh 'az login --service-principal -u $AZURE_CLIENT_ID -p $AZURE_CLIENT_SECRET -t $AZURE_TENANT_ID'
sh 'terraform init -input=false'
sh 'terraform plan -out=tfplan -input=false'
}
// sh ‘terraform destroy -auto-approve’
}
}
}
}
}