remove unsupported distros from install script

The install script currently includes some
distros that we don't actually have packages
for.

For these distros, the script currently
performs step to install Docker from
the distro's repository.

This patch removes those distros from
the install script, because we have no
control over these packages, and cannot
provide support for them.

Installing docker anyway will give the
false impression that they installed
a package from our repository (but they
didn't), and that they need to contact
us for support.

It's better to tell people that we don't
install in that case, and refer them to
the installation documentation, or the
documentation of their distro.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

hack/install.sh

@@ -338,74 +338,6 @@ do_install() {
 
 	# Run setup for each distro accordingly
 	case "$lsb_dist" in
-		amzn)
-			(
-			set -x
-			$sh_c 'sleep 3; yum -y -q install docker'
-			)
-			echo_docker_as_nonroot
-			exit 0
-			;;
-
-		'opensuse project'|opensuse)
-			echo 'Going to perform the following operations:'
-			if [ "$repo" != 'main' ]; then
-				echo '  * add repository obs://Virtualization:containers'
-			fi
-			echo '  * install Docker'
-			$sh_c 'echo "Press CTRL-C to abort"; sleep 3'
-
-			if [ "$repo" != 'main' ]; then
-				# install experimental packages from OBS://Virtualization:containers
-				(
-					set -x
-					zypper -n ar -f obs://Virtualization:containers Virtualization:containers
-					rpm_import_repository_key 55A0B34D49501BB7CA474F5AA193FBB572174FC2
-				)
-			fi
-			(
-				set -x
-				zypper -n install docker
-			)
-			echo_docker_as_nonroot
-			exit 0
-			;;
-		'suse linux'|sle[sd])
-			echo 'Going to perform the following operations:'
-			if [ "$repo" != 'main' ]; then
-				echo '  * add repository obs://Virtualization:containers'
-				echo '  * install experimental Docker using packages NOT supported by SUSE'
-			else
-				echo '  * add the "Containers" module'
-				echo '  * install Docker using packages supported by SUSE'
-			fi
-			$sh_c 'echo "Press CTRL-C to abort"; sleep 3'
-
-			if [ "$repo" != 'main' ]; then
-				# install experimental packages from OBS://Virtualization:containers
-				echo >&2 'Warning: installing experimental packages from OBS, these packages are NOT supported by SUSE'
-				(
-					set -x
-					zypper -n ar -f obs://Virtualization:containers/SLE_12 Virtualization:containers
-					rpm_import_repository_key 55A0B34D49501BB7CA474F5AA193FBB572174FC2
-				)
-			else
-				# Add the containers module
-				# Note well-1: the SLE machine must already be registered against SUSE Customer Center
-				# Note well-2: the `-r ""` is required to workaround a known issue of SUSEConnect
-				(
-					set -x
-					SUSEConnect -p sle-module-containers/12/x86_64 -r ""
-				)
-			fi
-			(
-				set -x
-				zypper -n install docker
-			)
-			echo_docker_as_nonroot
-			exit 0
-			;;
-
 		ubuntu|debian|raspbian)
 			export DEBIAN_FRONTEND=noninteractive
 
@@ -512,33 +444,6 @@ do_install() {
 			echo_docker_as_nonroot
 			exit 0
 			;;
-		gentoo)
-			if [ "$url" = "https://test.docker.com/" ]; then
-				# intentionally mixed spaces and tabs here -- tabs are stripped by "<<-'EOF'", spaces are kept in the output
-				cat >&2 <<-'EOF'
-
-				  You appear to be trying to install the latest nightly build in Gentoo.'
-				  The portage tree should contain the latest stable release of Docker, but'
-				  if you want something more recent, you can always use the live ebuild'
-				  provided in the "docker" overlay available via layman.  For more'
-				  instructions, please see the following URL:'
-
-				    https://github.com/tianon/docker-overlay#using-this-overlay'
-
-				  After adding the "docker" overlay, you should be able to:'
-
-				    emerge -av =app-emulation/docker-9999'
-
-				EOF
-				exit 1
-			fi
-
-			(
-				set -x
-				$sh_c 'sleep 3; emerge app-emulation/docker'
-			)
-			exit 0
-			;;
 	esac
 
 	# intentionally mixed spaces and tabs here -- tabs are stripped by "<<-'EOF'", spaces are kept in the output