update bootc check

dnf/util.py

@@ -643,52 +643,16 @@ def _is_file_pattern_present(specs):
     return False
 
 
-def is_container():
-    """Returns true if DNF is running in a container,
-       false otherwise.
-    """
-    # This attempts to reimplement
-    # https://github.com/ostreedev/ostree-rs-ext/blob/b0d1c1e4748c8708149bb6c92998da623260c4c6/lib/src/container_utils.rs#L20
-    # in python.
-    container_env_var = 'container'
-    container_env_file = '/run/.containerenv'
-    docker_env_file =  '/.dockerenv'
-    # https://stackoverflow.com/questions/20010199/how-to-determine-if-a-process-runs-inside-lxc-docker
-    if os.getenv(container_env_var) is not None or os.path.isfile(docker_env_file) or os.path.isfile(container_env_file):
-        return True
-    else:
-        return False
-
 def is_bootc_host():
     """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.
     """
-
     ostree_booted = '/run/ostree-booted'
     usr = '/usr/'
-
     # Check if usr is writtable and we are in a running ostree system.
     # We want this code to return true only when the system is in locked state. If someone ran
     # bootc overlay or ostree admin unlock we would want normal DNF path to be ran as it will be
     # temporary changes (until reboot).
-    if os.path.isfile(ostree_booted) and not os.access(usr, os.X_OK):
-        return True
-    else:
-        return False
-
-def is_bootc_container():
-    """Returns true if DNF is running inside a bootc container,
-       false otherwise.  If True, some packages like kernel might be
-       installed with that in mind. For example only one kernel is
-       supported on bootc containers and hosts.
-       ## TODO this is not complete right now as it just checks for
-       /ostree/ to exists. Also not in use. ##
-    """
-    sysroot_ostree = '/sysroot/ostree'
-    systemd_env_var = 'INVOCATION_ID'
-    if is_container() and os.path.exists(sysroot_ostree) and not is_bootc_host() and os.getenv(systemd_env_var) is None:
-        return True
-    else:
-        return False
+    return os.path.isfile(ostree_booted) and not os.access(usr, os.W_OK)