Support URL as post-install-script for Artemis plugin

tmt/steps/provision/artemis.py

@@ -265,8 +265,8 @@ class ArtemisGuestData(tmt.steps.provision.GuestSshData):
  post_install_script: Optional[str] = field(
  default=None,
  option='--post-install-script',
- metavar='SCRIPT',
- help='If set, this script will be executed on the guest after provisioning.')
+ metavar='SCRIPT|URL',
+ help='If set, the script provided or fetched will be executed.')
 
 
 @dataclasses.dataclass
@@ -548,7 +548,26 @@ def _create(self) -> None:
  # TODO: spot instance
 
  if self.post_install_script:
- data['post_install_script'] = self.post_install_script
+ if tmt.utils.is_url(self.post_install_script):
+ try:
+ with retry_session() as session:
+ response = session.get(self.post_install_script)
+
+ if not response.ok:
+ raise ArtemisProvisionError(
+ "Failed to download the post-install script")
+
+ except requests.RequestException as exc:
+ raise ArtemisProvisionError(
+ "Failed to download the post-install script") from exc
+
+ post_install_script = response.text
+ else:
+ self.debug('post-install-script argument is treated as a raw script')
+
+ post_install_script = self.post_install_script.replace('\\n', '\n')
+
+ data['post_install_script'] = post_install_script
 
  if self.log_type:
  data['log_types'] = list({tuple(log.split('/', 1)) for log in self.log_type})