fix: copy config on start (#2)

NUT does not seem to like ConfigMaps

Dockerfile

@@ -8,9 +8,9 @@ RUN    microdnf install -y epel-release \
     && microdnf remove -y \
          libsemanage \
          shadow-utils \
-    && mkdir /var/run/{nut,upsmon} \
-    && chown nut /var/run/{nut,upsmon} \
-    && chmod o-rwx /var/run/{nut,upsmon} \
+    && mkdir /etc/nut /var/run/{nut,upsmon} \
+    && chown nut /etc/nut /var/run/{nut,upsmon} \
+    && chmod o-rwx /etc/nut /var/run/{nut,upsmon} \
     && chmod a-s \
          /usr/bin/* \
          /usr/sbin/* \

README.md

@@ -4,7 +4,9 @@
 
 ## Usage
 
-Run it as you please. Not that this image does not generate any automated configuration.
+Run it as you please.
+
+Note that this image does not generate any automated configuration. You can inject config by putting it into the `/var/tmp/nut-config/` directory which gets copied to `/etc/nut` during startup.
 
 ## Release Management
 

entrypoint.sh

@@ -5,6 +5,10 @@ readonly GROUP=nut
 
 set -xe
 
+if [[ -d "/var/tmp/nut-config" ]]; then
+  cp /var/tmp/nut-config/* /etc/nut/
+fi
+
 /sbin/upsdrvctl -u root start
 /sbin/upsd
 ls -al /run/nut