Hadolint command expects Hadolint to be installed locally, doesn't use Docker image

[hbielenia]

Orb version

2.1.4

What happened

Upon trying to run the hadolint command, I'm getting following error:

Running hadolint with the following options...


/bin/bash: line 24: hadolint: command not found

Exited with code exit status 127

Apparently, the command expects hadolint to be installed locally and available as executable, despite the description clearly stating that it's using a hadolint Docker image: https://hub.docker.com/r/hadolint/hadolint.

Expected behavior

Hadolint should be pulled from Docker repository and executed in Docker container, with no need to install additional dependencies.

[brivu]

Hey @hbielenia,

Thank you for letting us know. You have a couple of options here:

1. You can use the hadolint docker image in your job to run this command.
2. You can just use the hadolint job.

Having said that, I've added validation to this command to check and see if hadolint is installed. If not, the command will now install hadolint for you.

I've added this in PR #175.

Hope that helps!