Upgrade prompt is interactive and blocks automation workflows

[timheuer]

Describe the bug

Users or agents with an older version of the az CLI can get into a blocking situation when executing a command as it follows-up with an upgrade prompt for the CLI

Command Name
az ad sp create-for-rbac

To Reproduce:

Steps to reproduce the behavior. Note that argument values have been redacted, as they may contain sensitive information.

• get a machine with a non-current version of the az CLI
• az ad sp create-for-rbac --name {} --role {} --scopes {} --sdk-auth

Expected Behavior

Command executes and finished with no blocking interactivity

Actual Behavior

Command executes, but finishes with an offer to upgrade to the latest CLI, thus blocking anything that is expecting either an error state or a final exit code

Environment Summary

Windows-10-10.0.19041-SP0
Python 3.6.8
Installer: MSI

azure-cli 2.22.1

Additional Context

[yonzhan]

@jiasli for awareness

[sicklittlemonkey]

Is there no way to disable this upgrade notification prompt yet?

It seems like --only-show-errors doesn't stop it, since my script uses that but still got the prompt.
(Hard to check again after upgrading to shut it up!)

Oh, I suppose I opted in to auto upgrades, so disable that. Is that the only way?
az config set auto-upgrade.enable=no

I would rather only disable it in scripts (with a switch or something) but see it when I run az commands from the console.

[jiasli]

auto-upgrade.enable by default is turned off:

azure-cli/src/azure-cli/azure/cli/__main__.py

Line 75 in 03f510e

if exit_code == 0 and az_cli.config.getboolean('auto-upgrade', 'enable', False) and \

You must have turned it on before with

az config set auto-upgrade.enable=yes

In order to turn off auto-upgrade prompt, you may unset it:

az config unset auto-upgrade.enable

You may also disable prompt by making stdin non-tty:

# Linux only
az ... </dev/null

# Linux/Windows
echo "" | az ...

If you want a totally isolated Azure CLI environment without the user configuration (~/.azure), you can set AZURE_CONFIG_DIR to a separate directory.