dnf/0027-Add-detection-for-ostree-based-systems-and-warn-user.patch

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From 6af6633b3e1e92405ec63ef4d3d697891213f8cb Mon Sep 17 00:00:00 2001
From: David Cantrell <dcantrell@redhat.com>
Date: Thu, 15 Feb 2024 14:03:32 -0500
Subject: [PATCH 1/4] Add detection for ostree-based systems and warn users
about losing changes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Upstream commit: 5c050ba2324c5fb95bf0e0501c7925f38f6a09dc
On ostree-based systems, users can use dnf to customize the
environment but those changes will be lost at the next ostree-based
image update. If you want to retain changes between ostree-updates
you need to make use of rpm-ostree right now.
Signed-off-by: David Cantrell <dcantrell@redhat.com>
Resolves: https://issues.redhat.com/browse/RHEL-49670
Signed-off-by: Petr Písař <ppisar@redhat.com>
---
dnf/cli/cli.py | 9 +++++++++
dnf/util.py | 31 +++++++++++++++++++++++++++++++
2 files changed, 40 insertions(+)
diff --git a/dnf/cli/cli.py b/dnf/cli/cli.py
index 0c4f4c6ad..1fd0e96c3 100644
--- a/dnf/cli/cli.py
+++ b/dnf/cli/cli.py
@@ -214,6 +214,15 @@ class BaseCli(dnf.Base):
elif 'test' in self.conf.tsflags:
logger.info(_("{prog} will only download packages, install gpg keys, and check the "
"transaction.").format(prog=dnf.util.MAIN_PROG_UPPER))
+ if dnf.util.is_container():
+ _container_msg = _("""
+*** This system is managed with ostree. Changes to the system
+*** made with dnf will be lost with the next ostree-based update.
+*** If you do not want to lose these changes, use 'rpm-ostree'.
+""")
+ logger.info(_container_msg)
+ raise CliError(_("Operation aborted."))
+
if self._promptWanted():
if self.conf.assumeno or not self.output.userconfirm():
raise CliError(_("Operation aborted."))
diff --git a/dnf/util.py b/dnf/util.py
index 16c5bc89c..9909f8fea 100644
--- a/dnf/util.py
+++ b/dnf/util.py
@@ -33,11 +33,13 @@ import errno
import functools
import hawkey
import itertools
+import json
import locale
import logging
import os
import pwd
import shutil
+import subprocess
import sys
import tempfile
import time
@@ -631,3 +633,32 @@ def _post_transaction_output(base, transaction, action_callback):
def _name_unset_wrapper(input_name):
# returns <name-unset> for everything that evaluates to False (None, empty..)
return input_name if input_name else _("<name-unset>")
+
+
+def is_container():
+ """Returns true is the system is managed as an immutable container,
+ false otherwise. If msg is True, a warning message is displayed
+ for the user.
+ """
+
+ bootc = '/usr/bin/bootc'
+ ostree = '/sysroot/ostree'
+
+ if os.path.isfile(bootc) and os.access(bootc, os.X_OK):
+ p = subprocess.Popen([bootc, "status", "--json"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ (out, err) = p.communicate()
+
+ if p.returncode == 0:
+ # check the output of 'bootc status'
+ j = json.loads(out)
+
+ # XXX: the API from bootc status is evolving
+ status = j.get("status", "")
+ kind = j.get("kind", "")
+
+ if kind.lower() == "bootchost" and bool(status.get("isContainer", None)):
+ return True
+ elif os.path.isdir(ostree):
+ return True
+
+ return False
\ No newline at end of file
--
2.46.2