Run tmpfs on /var/lib/mock (hope this works)

Dockerfile

@@ -6,10 +6,13 @@ LABEL org.opencontainers.image.authors="Carlos Mogas da Silva <r3pek@r3pek.org>"
       maintainer="Carlos Mogas da Silva <r3pek@r3pek.org>"
 
 RUN dnf update -y && dnf upgrade -y; \
-    dnf install -y mock rpmdevtools jq; \
+    dnf install -y mock rpmdevtools jq nosync; \
     dnf clean all && rm -rf /var/cache/dnf/*
 
 COPY entrypoint.sh /
 RUN chmod +x /entrypoint.sh
+
+COPY site-defaults.cfg /etc/mock/
+
 ENTRYPOINT ["/entrypoint.sh"]
 

entrypoint.sh

@@ -10,6 +10,9 @@ SYSTEM=${INPUT_SYSTEM}
 ARCH=${INPUT_ARCH}
 NOCHECK=${INPUT_NOCHECK}
 
+rm -rf /var/lib/mock/*
+mount -t tmpfs tmpfs /var/lib/mock
+
 RESULT="rpms=["
 
 for SPEC in ${SPECS[@]}; do

site-defaults.cfg

@@ -0,0 +1,3 @@
+config_opts['nosync'] = True
+config_opts['plugin_conf']['root_cache_opts']['compress_program'] = ""
+config_opts['plugin_conf']['root_cache_opts']['extension'] = ""