lorax-composer: Add liveimg-tar image type

This creates a tar suitable for use with the anaconda kickstart liveimg
command. It adds the kernel, grub2, and grub2-tools packages to the tar
template.

share/composer/liveimg-tar.ks

@@ -0,0 +1,47 @@
+# Lorax Composer tar output kickstart template
+# Add kernel and grub2 for use with anaconda's kickstart liveimg command
+
+# Firewall configuration
+firewall --enabled
+
+# NOTE: The root account is locked by default
+# Network information
+network  --bootproto=dhcp --onboot=on --activate
+# NOTE: keyboard and lang can be replaced by blueprint customizations.locale settings
+# System keyboard
+keyboard --xlayouts=us --vckeymap=us
+# System language
+lang en_US.UTF-8
+# SELinux configuration
+selinux --enforcing
+# Installation logging level
+logging --level=info
+# Shutdown after installation
+shutdown
+# System bootloader configuration (tar doesn't need a bootloader)
+bootloader --location=none
+
+%post
+# Remove random-seed
+rm /var/lib/systemd/random-seed
+
+# Clear /etc/machine-id
+rm /etc/machine-id
+touch /etc/machine-id
+
+# Remove the rescue kernel and image to save space
+rm -f /boot/*-rescue*
+%end
+
+# NOTE Do NOT add any other sections after %packages
+%packages --nocore
+# Packages requires to support this output format go here
+policycoreutils
+selinux-policy-targeted
+
+# Packages needed for liveimg
+kernel
+grub2
+grub2-tools
+
+# NOTE lorax-composer will add the blueprint packages below here, including the final %end

src/pylorax/api/compose.py

@@ -900,6 +900,31 @@ def compose_args(compose_type):
                                  "app_file":                None,
                                  "squashfs_only":           False,
                                 },
+            "liveimg-tar":      {"make_iso":                False,
+                                 "make_disk":               False,
+                                 "make_fsimage":            False,
+                                 "make_appliance":          False,
+                                 "make_ami":                False,
+                                 "make_tar":                True,
+                                 "make_tar_disk":           False,
+                                 "make_pxe_live":           False,
+                                 "make_ostree_live":        False,
+                                 "make_oci":                False,
+                                 "make_vagrant":            False,
+                                 "ostree":                  False,
+                                 "live_rootfs_keep_size":   False,
+                                 "live_rootfs_size":        0,
+                                 "image_size_align":        0,
+                                 "image_type":              False,          # False instead of None because of TOML
+                                 "qemu_args":               [],
+                                 "image_name":              default_image_name("xz", "root.tar"),
+                                 "tar_disk_name":           None,
+                                 "image_only":              True,
+                                 "app_name":                None,
+                                 "app_template":            None,
+                                 "app_file":                None,
+                                 "squashfs_only":           False,
+                                },
             "live-iso":         {"make_iso":                True,
                                  "make_disk":               False,
                                  "make_fsimage":            False,

tests/cli/test_compose_sanity.sh

@@ -12,7 +12,7 @@ CLI="${CLI:-./src/bin/composer-cli}"
 rlJournalStart
     rlPhaseStartTest "compose types"
         rlAssertEquals "lists all supported types" \
-                "`$CLI compose types | sort | xargs`" "alibaba ami ext4-filesystem google hyper-v live-iso openstack partitioned-disk qcow2 tar vhd vmdk"
+                "`$CLI compose types | sort | xargs`" "alibaba ami ext4-filesystem google hyper-v live-iso liveimg-tar openstack partitioned-disk qcow2 tar vhd vmdk"
     rlPhaseEnd
 
     rlPhaseStartTest "compose start"

tests/pylorax/test_server.py

@@ -874,7 +874,7 @@ class ServerTestCase(unittest.TestCase):
         data = json.loads(resp.data)
         self.assertNotEqual(data, None)
         self.assertEqual(data["status"], False, "Failed to fail to start test compose: %s" % data)
-        self.assertEqual(data["errors"], [{"id": BAD_COMPOSE_TYPE, "msg": "Invalid compose type (snakes), must be one of ['alibaba', 'ami', 'ext4-filesystem', 'google', 'hyper-v', 'live-iso', 'openstack', 'partitioned-disk', 'qcow2', 'tar', 'vhd', 'vmdk']"}],
+        self.assertEqual(data["errors"], [{"id": BAD_COMPOSE_TYPE, "msg": "Invalid compose type (snakes), must be one of ['alibaba', 'ami', 'ext4-filesystem', 'google', 'hyper-v', 'live-iso', 'liveimg-tar', 'openstack', 'partitioned-disk', 'qcow2', 'tar', 'vhd', 'vmdk']"}],
                                          "Failed to get errors: %s" % data)
 
     def test_compose_03_status_fail(self):