Add Amazon Linux provisioner.

[praveenkumar]

source: minishift/minishift#2421 (comment)

As per this repo there is no provisioner for amazon linux: https://github.com/machine-drivers/machine/tree/master/libmachine/provision

[afbjorklund]

Same issue as docker#3098 (since 2016)

[ixtli]

Someone from that thread said

to implement support you'd just need to extend the RedHatProvisioner (creating a new AmazonProvisioner) to check for the presence of amzn and it will work. For instance, check out the CentOS provisioner, which is only about 25 lines. If AL doesn't require anything custom, it should be about that length as well.

Is there something I can do to make this happen? Amazon Linux 2 now uses systemd so i don't see why this would be very much work. In fact, looking at the redhat provisioner you even do less work because Docker is already installed.

[afbjorklund]

@ixtli : You will have to make a stand-alone driver, since machine is in "maintenance mode"

[ixtli]

@afbjorklund thank you for your response. what does "maintenance mode" mean? no existing maintainers? or they're just not taking feature requests, so they wouldn't take a pr that added a new provisioner?

[afbjorklund]

Good question, I think that is means that they are not adding any new provisioners.

As has been obvious for some time now, we've slowly stopped implementing or accepting new features for the project. Its desktop usage has mostly been supplanted by our Docker Desktop product. Provisioning on a variety of Cloud providers is overall better achieved using infrakit. Overall, pursuing active development on the project doesn't make sense anymore at this point, which is why we're officially closing the faucet for non-bugfix changes, starting today.

[hamiltont]

See docker#3609 which has a potentially working PR. Perhaps someone will use that against machine-drivers/machine and test that it's working for Amazon Linux 2