"Permission Denied" when reloading

[michael-t-dukes]

On two different occasions I have seen a strange issue when some Jenkins jobs executes into nginx and adds some configuration.

Occasion 1: Java cartridge

• Post loading in the Java cartridge the environment job is loaded
• Once the environment is created it copies in the configuration and loads it over:
  + docker exec proxy /usr/sbin/nginx -s reload nginx: [alert] kill(125, 1) failed (13: Permission denied) Build step 'Execute shell' marked build as failure [ssh-agent] Stopped. Warning: you have no plugins providing access control for builds, so falling back to legacy behavior of permitting any downstream builds to be triggered Finished: FAILURE
• When doing some manual activity the following was found:
  root@ADOP-Product-Demo:/home/ubuntu# docker exec proxy /usr/sbin/nginx -s reload nginx: [alert] kill(125, 1) failed (13: Permission denied) root@ADOP-Product-Demo:/home/ubuntu# docker exec proxy sh root@1c43656726b7:/# ls -ltr /usr/sbin/nginx -rwxr-xr-x 1 root root 5479619 Apr 20 2016 /usr/sbin/nginx root@1c43656726b7:/#

Occasion 2: Hybris cartridge

• Hybris cartridge does the same thing, once environment is created generate the proxy files and then copy in/load it
  root@DEMO-Mike-ADOP-Hybris:/var/lib/docker/volumes/nginx_config/_data/sites-enabled# docker exec -ti proxy bash root@fd9d37ac520a:/# nginx -s reload nginx: [alert] kill(140, 1) failed (13: Permission denied)

Only happens on some occasions, and the fix is: to simply restart the proxy container. Then the config runs correctly as it was intended to be created without any further action.