Introduce Virtio-loopback epsilon release:

Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.

Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9

1 files changed, 60 insertions, 0 deletions

diff --git a/tests/vm/ubuntuvm.py b/tests/vm/ubuntuvm.py
new file mode 100644
index 000000000..6689ad87a
--- /dev/null
+++ b/tests/vm/ubuntuvm.py
@@ -0,0 +1,60 @@
+#!/usr/bin/env python3
+#
+# Ubuntu VM testing library
+#
+# Copyright 2017 Red Hat Inc.
+# Copyright 2020 Linaro
+#
+# Authors:
+#  Robert Foley <robert.foley@linaro.org>
+#  Originally based on ubuntu.i386 Fam Zheng <famz@redhat.com>
+#
+# This code is licensed under the GPL version 2 or later.  See
+# the COPYING file in the top-level directory.
+
+import os
+import subprocess
+import basevm
+
+class UbuntuVM(basevm.BaseVM):
+
+    def __init__(self, args, config=None):
+        self.login_prompt = "ubuntu-{}-guest login:".format(self.arch)
+        basevm.BaseVM.__init__(self, args, config)
+
+    def build_image(self, img):
+        """Build an Ubuntu VM image.  The child class will
+           define the install_cmds to init the VM."""
+        os_img = self._download_with_cache(self.image_link,
+                                           sha256sum=self.image_sha256)
+        img_tmp = img + ".tmp"
+        subprocess.check_call(["cp", "-f", os_img, img_tmp])
+        self.exec_qemu_img("resize", img_tmp, "+50G")
+        ci_img = self.gen_cloud_init_iso()
+
+        self.boot(img_tmp, extra_args = [ "-device", "VGA", "-cdrom", ci_img, ])
+
+        # First command we issue is fix for slow ssh login.
+        self.wait_ssh(wait_root=True,
+                      cmd="chmod -x /etc/update-motd.d/*")
+        # Wait for cloud init to finish
+        self.wait_ssh(wait_root=True,
+                      cmd="ls /var/lib/cloud/instance/boot-finished")
+        self.ssh_root("touch /etc/cloud/cloud-init.disabled")
+        # Disable auto upgrades.
+        # We want to keep the VM system state stable.
+        self.ssh_root('sed -ie \'s/"1"/"0"/g\' '\
+                      '/etc/apt/apt.conf.d/20auto-upgrades')
+        self.ssh_root("sed -ie s/^#\ deb-src/deb-src/g /etc/apt/sources.list")
+
+        # If the user chooses not to do the install phase,
+        # then we will jump right to the graceful shutdown
+        if self._config['install_cmds'] != "":
+            # Issue the install commands.
+            # This can be overriden by the user in the config .yml.
+            install_cmds = self._config['install_cmds'].split(',')
+            for cmd in install_cmds:
+                self.ssh_root(cmd)
+        self.graceful_shutdown()
+        os.rename(img_tmp, img)
+        return 0