Podman doesn’t support CSV escaping in --mount arguments

[DemiMarie]

Is this a BUG REPORT or FEATURE REQUEST? (leave only one on its own line)

/kind bug

Description

Steps to reproduce the issue:

1. See that Docker documents that arguments to --mount use CSV syntax.

2. Try to CSV-escape an argument to --mount that contains commas

Describe the results you received:
Does not work

Describe the results you expected:
Works

Additional information you deem important (e.g. issue happens only occasionally):

Output of podman version:

Version:      3.4.4
API Version:  3.4.4
Go Version:   go1.16.8
Built:        Wed Dec  8 16:45:07 2021
OS/Arch:      linux/amd64

Output of podman info --debug:

Not applicable as this is a command line parsing problem.

Package info (e.g. output of rpm -q podman or apt list podman):

podman-3.4.4-1.fc35.x86_64

Have you tested with the latest version of Podman and have you checked the Podman Troubleshooting Guide? (https://github.com/containers/podman/blob/main/troubleshooting.md)

No

Additional environment details (AWS, VirtualBox, physical, etc.):
Fedora 35 Qubes OS VM

[mheon]

Can you provide an example command that should work, but does not?

[DemiMarie]

podman run '--mount=type=tmpfs,tmpfs-size=512M,"destination=/run,"' --interactive --rm -- registry.access.redhat.com/ubi8/ubi:latest sh

Podman complains that "destination is an invalid mount option. Since such commands currently do not work at all in Podman, fixing them should not cause backwards compatibility problems.

[rhatdan]

encoding/csv should be used to look at the mount type.
@flouthoc PTAL

[flouthoc]

Thanks above PR should close this.