Found argument 'polkadot' which wasn't expected, or isn't valid in this context

[bneiluj]

Bug:

The command line docker run --rm -it chevdor/polkadot:latest polkadot --name "PolkaDocker" crashes before executing.

docker run --rm -it chevdor/polkadot:latest polkadot --name "PolkaDocker"
error: Found argument 'polkadot' which wasn't expected, or isn't valid in this context

USAGE:
    parity [SUBCOMMAND]

Expected:

Have the docker image running.

Workaround:

If polkadot argument is removed then it executes correctly.
docker run --rm -it chevdor/polkadot:latest --name "PolkaDocker"

Env:
Parity version Parity-Ethereum/v2.1.0-nightly-4eab867-20180810/x86_64-linux-gnu/rustc1.28.0

[chevdor]

Thank you @bneiluj for taking the time to fill up this issue.

The described issue only affects the latest image currently in docker hub.
Workaround: exclude polkadot as mentioned by @bneiluj above.

This requires no change in the code. I will rebuild and push/overwrite latest.

[chevdor]

This issue is no longer valid.
The version of the image in docker hub is now 0.2.14 and the issue described above is gone.

Using docker run --rm -it chevdor/polkadot:latest polkadot --name "PolkaDocker" now works as we can see below:

Thanks again for taking the time to report the issue @bneiluj