This gist show how to create a container instance in Azure using service principal authentication and the Azure SDK

Container-runner.js

const msRestAzure = require('ms-rest-azure');
const ContainerInstanceManagementClient = require("azure-arm-containerinstance");
const AzureServiceClient = msRestAzure.AzureServiceClient;

const clientId = process.env['CLIENT_ID'];
const secret = process.env['APPLICATION_SECRET'];
const domain = process.env['DOMAIN']; //also known as tenantId
const subscriptionId = process.env['AZURE_SUBSCRIPTION_ID'];

const resourceGroup = 'YourResourceGroupName';
const containerGroup = 'YourContainerGroupName';
  
msRestAzure.loginWithServicePrincipalSecret(clientId, secret, domain)
.then(creds => {
    creds.getToken((e, t) => {
        let client = new ContainerInstanceManagementClient(creds, subscriptionId);
        client.containerGroups.createOrUpdate(resourceGroup, containerGroup, { 
            location: 'westus',
            name: 'demo1',
            containers: [{
                name: 'demo1',
                environmentVariables: [{
                    name: 'SUBSCRIPTION_ID', 
                    value: subscriptionId
                }, {
                    name: 'RESOURCE_GROUP', 
                    value: resourceGroup
                }, {
                    name: 'CONTAINER_GROUP', 
                    value: containerGroup
                }, {
                    name: 'ACCESS_TOKEN', 
                    value: t.accessToken
                }],
                image: 'nbellocam/autoclean-sh',
                resources: {
                    limits: null,
                    requests: {
                        cpu: 1,
                        memoryInGB: 1.5
                    }
                }
            }],
            osType: 'Linux'
        }).catch(err => {
            console.log('An error ocurred');
            console.dir(err, { depth: null, colors: true });
        });
    });
}).catch(err => {
  console.dir(err, { depth: null, colors: true });
});