0.6.1: Add checks to ensure mock is not in a container

iso/empanadas/empanadas/__init__.py

@@ -1 +1 @@
-__version__ = '0.6.0'
+__version__ = '0.6.1'

iso/empanadas/empanadas/templates/buildLiveImage.tmpl.sh

@@ -9,9 +9,30 @@ test -f {{ isoname }} && { echo "ERROR: ISO ALREDY EXISTS!"; exit 1; }
 
 major=$(grep loop /proc/devices | cut -c3)
 for index in 0 1 2 3 4 5; do
-  mknod /dev/loop$index $major $index
+  mknod /dev/loop$index b $major $index
 done
 {% else %}
+# This section is typically for mock. It is possible to run mock within a
+# container, but we generally don't like this. Even though we can do this,
+# it does not mean that livemedia-creator is going to work. There are ways
+# around this, such as making sure the container is privileged to have loop
+# devices, and the loop devices should exist on the host. After, the loop
+# devices have to be cleaned up.
+#
+# The lorax devs have a way of doing this, but it requires privleges and
+# the containers cannot be root, as far as I understand it. Having root
+# containers is bad practice IMO.
+# 
+# Even so, we don't support it. These checks are to prevent (you) from
+# getting needless headaches.
+[[ -f /run/.containerenv ]]; container_ec=$?
+grep -q "0::/$" /proc/1/cgroup; pid_ec=$?
+grep -q "0::/$" /proc/self/cgroup; self_ec=$?
+
+if [[ "$pid_ec" == "0" ]] || [[ "$container_ec" == 0 ]] || [[ "$self_ec" == 0 ]]; then
+  exit 23
+fi
+
 cd /builddir
 
 {% endif %}

iso/empanadas/empanadas/util/iso_utils.py

@@ -1828,7 +1828,8 @@ class LiveBuild:
         bad_exit_list = []
         checksum_list = []
         entry_name_list = []
-        self.log.warn(Color.WARN + 'This mode does not work properly. It will fail.')
+        self.log.warn(Color.WARN + 'There is no support for podman in empanadas.')
+        self.log.warn(Color.WARN + "If this fails, it's on you to determine the fix.")
         for i in images:
             image_name = i
             entry_name = f'buildLiveImage-{arch}-{i}.sh'

iso/empanadas/pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "empanadas"
-version = "0.6.0"
+version = "0.6.1"
 description = "hand crafted ISOs with love and spice"
 authors = ["Louis Abel <label@rockylinux.org>", "Neil Hanlon <neil@rockylinux.org>"]