[PATCH 00/11] Support running custom commands in VM

[Uladzimir Bely <ubely@ilbers.de>]

VM run tests implementation in Isar testsuite allows only parsing
virtual machine boot logs, so the functionality is limited.

This patchset implements running custom commands on VM running in qemu
that allows to implement any custom tests.

The concept is the following:

For running custom tests SSH is used. So:

 - SSH server on machine should be configured, so `sshd-regen-keys`
package needs to be installed in the image.

 - Ethernet interface on machine should be automatically brought up
to make host-to-vm port forwarding working.

 - User in VM we use to connect via SSH should have public SSH key
in his `~/.ssh/` directory preinstalled.

 - Since base isar image don't have this included, custom image name
for vm run tests should be supported. This also allows to make reusing
Isar testsuite in downstream simpler.

Uladzimir Bely (11):
  testsuite: Fix failing hostname service in qemu guest
  testsuite: Allow custom image names in start_vm.py
  testsuite: Fix terminal broken after run test executed
  testsuite: Add SSH key pair for using in CI
  image-account-extension: Add copy-ci-key flag for user
  meta-isar: Fix PCI bus initialization in qemuarm machine
  testsuite: Use random free port for qemu SSH forwarding
  testsuite: Support running custom commands in VM
  meta-isar: Use a separate image recipe in CI
  isar-image-ci: Make ethernet inerface auto bring up in ubuntu-focal
  testsuite: Run custom commands on some qemu targets

 meta-isar/conf/machine/qemuarm.conf           |  2 +-
 .../recipes-core/images/isar-image-ci.bb      | 38 ++++++++++
 meta/classes/image-account-extension.bbclass  | 14 +++-
 testsuite/cibuilder.py                        | 69 ++++++++++++++++--
 testsuite/citest.py                           | 72 +++++++++++++++----
 testsuite/keys/ssh/id_rsa                     | 38 ++++++++++
 testsuite/keys/ssh/id_rsa.pub                 |  1 +
 testsuite/start_vm.py                         | 31 ++++----
 8 files changed, 230 insertions(+), 35 deletions(-)
 create mode 100644 meta-isar/recipes-core/images/isar-image-ci.bb
 create mode 100644 testsuite/keys/ssh/id_rsa
 create mode 100644 testsuite/keys/ssh/id_rsa.pub

-- 
2.20.1