Unable to host docker image from azure registry to azure batch - azure

Question

I am new to docker as well as azure batch. The problem i am having currently is i have 2 dotnet console applications one of them runs locally (which creates the pool, job and task on azure batch programmatically) and for second one i have created a docker image and pushed to azure container registry. Now the things is when i create the cloudtTask from locally running application as monetione below
TaskContainerSettings cmdContainerSettings = new TaskContainerSettings(
imageName: "myrepository.azurecr.io/pipeline:latest",
containerRunOptions: "--rm"
);
CloudTask containerTask = new CloudTask(
id: "task1",
commandline: cmdLine);
containerTask.ContainerSettings = cmdContainerSettings;
Console.WriteLine("Task created");
await batchClient.JobOperations.AddTaskAsync(newJobId, containerTask);
Console.WriteLine("-----------------------");
and add it to the BatchClient, the expcetion i get in azure batch (Azure portal) is this:
System.UnauthorizedAccessException: Access to the path '/home/_azbatch/.dotnet' is denied. ---> System.IO.IOException: Permission denied
--- End of inner exception stack trace ---
What can be the problem? Thank you.

Answer 1

As the comment ended up being the answer, I'm posting it here for clarity for future viewers:
The task needs to be run with elevated rights.
eg.
containerTask.UserIdentity = new UserIdentity(new AutoUserSpecification(elevationLevel: ElevationLevel.Admin, scope: AutoUserScope.Task));
See the docs for more info

Answer 2

i am still not able to pull image from docker, i am using nodejs .. following are configs for creating task
const taskConfig = {
"id": "task-new-2",
"commandLine": "bash -c 'node index.js'",
"containerSettings": {
"imageName": "xxx.xx.io/xx-test:latest",
"containerRunOptions": "--rm",
"username": "xxx",
"password": "tfDlZ",
"registryServer": "xxx.xx.io",
// "workingDirectory": "AZ_BATCH_NODE_ROOT_DIR"
},
"userIdentity": {
"autoUser": {
"scope": "pool",
"elevationLevel": "admin"
}
}
}