Allow changing the container command

Author: duck-rh

custom_base.template.sh

@@ -8,3 +8,8 @@
 # Mount additional volumes into the container or limit the CPU utilization.
 # PODMAN_RUN_ARGS[0]='--volume=/mnt:/path/in/container:z'
 # PODMAN_RUN_ARGS[1]='--cpus=1'
+
+# Change the command given to `podman run` in `prepare.sh`.
+# This command *must* not return or the container could stop before the
+# tasks are done. The default is to call `sleep` with a very long time.
+# PODMAN_RUN_COMMAND=/sbin/init

prepare.sh

@@ -63,7 +63,7 @@ start_container() {
         --volume "$CACHE_DIR:/home/user/cache":z \
         "${PODMAN_RUN_ARGS[@]}" \
         "$IMAGE"\
-        sleep 999999999
+        "${PODMAN_RUN_COMMAND:-sleep 999999999}"
 }
 
 install_command() {