Support Fedora Image Mode

- [x] Proof-of-concept
- [ ] Discuss how to solve the scripts location read-only
- [ ] Polish and prepare for merging

Signed-off-by: Miroslav Vadkerti <mvadkert@redhat.com>

tmt/steps/execute/__init__.py

@@ -27,6 +27,7 @@
 from tmt.steps.discover import Discover, DiscoverPlugin, DiscoverStepData
 from tmt.steps.provision import Guest
 from tmt.utils import (
+    Command,
     Path,
     ShellScript,
     Stopwatch,
@@ -58,6 +59,9 @@
 # Scripts source directory
 SCRIPTS_SRC_DIR = tmt.utils.resource_files('steps/execute/scripts')
 
+# Scripts destination directory, hardcoded in the tmt.sh script
+SCRIPTS_DEST_DIR = "/var/tmp/tmt/bin"
+
 
 @dataclass
 class Script:
@@ -77,10 +81,10 @@ class ScriptCreatingFile(Script):
 
 # Script handling reboots, in restraint compatible fashion
 TMT_REBOOT_SCRIPT = ScriptCreatingFile(
-    path=Path("/usr/local/bin/tmt-reboot"),
+    path=Path(f"{SCRIPTS_DEST_DIR}/tmt-reboot"),
     aliases=[
-        Path("/usr/local/bin/rstrnt-reboot"),
-        Path("/usr/local/bin/rhts-reboot")],
+        Path(f"{SCRIPTS_DEST_DIR}/rstrnt-reboot"),
+        Path(f"{SCRIPTS_DEST_DIR}/rhts-reboot")],
     related_variables=[
         "TMT_REBOOT_COUNT",
         "REBOOTCOUNT",
@@ -89,43 +93,52 @@ class ScriptCreatingFile(Script):
     )
 
 TMT_REBOOT_CORE_SCRIPT = Script(
-    path=Path("/usr/local/bin/tmt-reboot-core"),
+    path=Path(f"{SCRIPTS_DEST_DIR}/tmt-reboot-core"),
     aliases=[],
     related_variables=[])
 
 # Script handling result reporting, in restraint compatible fashion
 TMT_REPORT_RESULT_SCRIPT = ScriptCreatingFile(
-    path=Path("/usr/local/bin/tmt-report-result"),
+    path=Path(f"{SCRIPTS_DEST_DIR}/tmt-report-result"),
     aliases=[
-        Path("/usr/local/bin/rstrnt-report-result"),
-        Path("/usr/local/bin/rhts-report-result")],
+        Path(f"{SCRIPTS_DEST_DIR}/rstrnt-report-result"),
+        Path(f"{SCRIPTS_DEST_DIR}/rhts-report-result")],
     related_variables=[],
     created_file="tmt-report-results.yaml"
     )
 
 # Script for archiving a file, usable for BEAKERLIB_COMMAND_SUBMIT_LOG
 TMT_FILE_SUBMIT_SCRIPT = Script(
-    path=Path("/usr/local/bin/tmt-file-submit"),
+    path=Path(f"{SCRIPTS_DEST_DIR}/tmt-file-submit"),
     aliases=[
-        Path("/usr/local/bin/rstrnt-report-log"),
-        Path("/usr/local/bin/rhts-submit-log"),
-        Path("/usr/local/bin/rhts_submit_log")],
+        Path(f"{SCRIPTS_DEST_DIR}/rstrnt-report-log"),
+        Path(f"{SCRIPTS_DEST_DIR}/rhts-submit-log"),
+        Path(f"{SCRIPTS_DEST_DIR}/rhts_submit_log")],
     related_variables=[]
     )
 
 # Script handling text execution abortion, in restraint compatible fashion
 TMT_ABORT_SCRIPT = ScriptCreatingFile(
-    path=Path("/usr/local/bin/tmt-abort"),
+    path=Path(f"{SCRIPTS_DEST_DIR}/tmt-abort"),
     aliases=[
-        Path("/usr/local/bin/rstrnt-abort"),
-        Path("/usr/local/bin/rhts-abort")],
+        Path(f"{SCRIPTS_DEST_DIR}/rstrnt-abort"),
+        Path(f"{SCRIPTS_DEST_DIR}/rhts-abort")],
     related_variables=[],
     created_file="abort"
     )
 
+# Profile script for adding SCRIPTS_DEST_DIR to executable pats system-wide
+TMT_ETC_PROFILE_D = Script(
+    path=Path(f"/etc/profile.d/tmt.sh"),
+    aliases=[],
+    related_variables=[],
+    )
+
+
 # List of all available scripts
 SCRIPTS = (
     TMT_ABORT_SCRIPT,
+    TMT_ETC_PROFILE_D,
     TMT_FILE_SUBMIT_SCRIPT,
     TMT_REBOOT_SCRIPT,
     TMT_REBOOT_CORE_SCRIPT,
@@ -597,6 +610,9 @@ def prepare_tests(self, guest: Guest, logger: tmt.log.Logger) -> list[TestInvoca
 
     def prepare_scripts(self, guest: "tmt.steps.provision.Guest") -> None:
         """ Prepare additional scripts for testing """
+        # Create scripts directory
+        guest.execute(Command("mkdir", "-p", f"{SCRIPTS_DEST_DIR}"))
+
         # Install all scripts on guest
         for script in self.scripts:
             source = SCRIPTS_SRC_DIR / script.path.name

tmt/steps/execute/scripts/tmt.sh

@@ -0,0 +1,2 @@
+# tmt provides certain executable scripts under this path
+export PATH=/var/tmp/tmt/bin:$PATH

tmt/steps/provision/__init__.py

@@ -1303,23 +1303,7 @@ def _check_rsync(self) -> CheckRsyncOutcome:
         except tmt.utils.RunError:
             pass
 
-        # Install under '/root/pkg' for read-only distros
-        # (for now the check is based on 'rpm-ostree' presence)
-        # FIXME: Find a better way how to detect read-only distros
-        # self.debug("Check for a read-only distro.")
-        if self.facts.package_manager == 'rpm-ostree':
-            self.package_manager.install(
-                Package('rsync'),
-                options=tmt.package_managers.Options(
-                    install_root=Path('/root/pkg'),
-                    release_version='/'
-                    )
-                )
-
-            self.execute(Command('ln', '-sf', '/root/pkg/bin/rsync', '/usr/local/bin/rsync'))
-
-        else:
-            self.package_manager.install(Package('rsync'))
+        self.package_manager.install(Package('rsync'))
 
         return CheckRsyncOutcome.INSTALLED