Change openshift example to use userdel/useradd instead of usermod

holzman · holzman · commit b5923e32036b · 2022-06-22T14:19:09.000-05:00
When using usermod (or useradd without -l), a sparse file is created for lastlog/faillog. The extents of the file scale with the UID, and Docker does not see the file as sparse, so it will try to generate a huge image without this patch. (See moby/moby#5419 for details) Signed-off-by: Burt Holzman <burt@fnal.gov>
diff --git a/setup/kubernetes/openshift.md b/setup/kubernetes/openshift.md
@@ -161,7 +161,7 @@ spec:
       USER root 
 
       # As root, change the coder user id
-      RUN usermod --uid=1000670000 coder
+      RUN userdel coder && useradd -l -u 1000670000 coder && chown coder:coder /home/coder
 
       # Go back to the user 'coder'
       USER coder
