Request to add prompt for password

[skbly7]

Currently we can password passwords only by vulcanizer.yaml configuration file or in cmdline.

Can/Should we allow password as prompt if not provided after --password flag? (or new flag all together)

[nickcanz]

This is a good idea! But unfortunately it doesn't look like it's supported by the https://github.com/spf13/cobra, the cli library that's we're using: spf13/cobra#248

[jhuggart]

Hey @nickcanz, Good to see you in the wild. I stumbled across this from the cobra issue you referenced above.

I ended up using promptui with cobra to allow input for a handful of fields. It was super easy to wire up. Maybe it'll work for you too.

[nickcanz]

Thanks for the tip @jhuggart, I'll look into that!

[leosunmo]

I wrote up two implementations of this using https://github.com/manifoldco/promptui and Go's builtin golang.org/x/crypto/ssh/terminal terminal.ReadPassword().

manifoldco/promptui implementation
golang.org/x/crypto/ssh/terminal implementation

Binary sizes:

13544298  promptui-vulcanizer
13120932  terminal-vulcanizer

Promptui looks a bit flashier and will obviously open up other possibilities for interactive prompts that we might want in the future, but /x/crypto/ssh/terminal is a lot slimmer.

Promptui allows you to set limits on the password, which might not be interesting for this purpose, but it displays "*" instead of what you type, where as /x/crypto/ssh/terminal just shows nothing at all which can be confusing for some.

@jhuggart If you are still using Vulcanizer, could you check out one of my branches and try it out? I don't have a cluster with auth enabled handy right now so I can't validate if this actually works.

[leosunmo]

@nickcanz or @jhuggart could you try this out with a password protected cluster?

[nickcanz]

Sorry about this @leosunmo! Really appreciate your work and I'm going to dedicate some time next week to look at it.

[leosunmo]

No worries Nick, not in a huge rush, I don't even use the feature. Just very keen to close the last two issues ;)

[dshelley66]

I've used https://github.com/AlecAivazis/survey for various interactive prompts including masked password in a CLI that is built with Cobra.