Snap fails to read hugepages folder on sysfs

[phvalguima]

At early start of the snap, the JVM will try to read the /sys/kernel/mm/hugepages/ and fail with permission denied:

[32370.680133] audit: type=1400 audit(1719167877.129:1244): apparmor="DENIED" operation="open" class="file" profile="snap.opensearch.daemon" name="/sys/kernel/mm/hugepages/" pid=96690 
comm="java" requested_mask="r" denied_mask="r" fsuid=584788 ouid=0                          
[32370.847235] audit: type=1400 audit(1719167877.293:1245): apparmor="DENIED" operation="open" class="file" profile="snap.opensearch.daemon" name="/sys/kernel/mm/hugepages/" pid=96707 
comm="java" requested_mask="r" denied_mask="r" fsuid=584788 ouid=0                          
[32370.917110] audit: type=1400 audit(1719167877.365:1246): apparmor="DENIED" operation="open" class="file" profile="snap.opensearch.daemon" name="/sys/kernel/mm/hugepages/" pid=96728 
comm="java" requested_mask="r" denied_mask="r" fsuid=584788 ouid=0                          
[32371.109975] audit: type=1400 audit(1719167877.557:1247): apparmor="DENIED" operation="open" class="file" profile="snap.opensearch.daemon" name="/sys/kernel/mm/hugepages/" pid=96746 
comm="java" requested_mask="r" denied_mask="r" fsuid=584788 ouid=0                          
[32371.709342] audit: type=1400 audit(1719167878.157:1248): apparmor="DENIED" operation="open" class="file" profile="snap.opensearch.daemon" name="/sys/kernel/mm/hugepages/" pid=96686 
comm="java" requested_mask="r" denied_mask="r" fsuid=584788 ouid=0                          
[32375.271374] audit: type=1400 audit(1719167881.717:1249): apparmor="DENIED" operation="mkdir" class="file" profile="snap.opensearch.daemon" name="/nonexistent/" pid=96686 comm="java"
 requested_mask="c" denied_mask="c" fsuid=584788 ouid=584788                                
[32375.271385] audit: type=1400 audit(1719167881.717:1250): apparmor="DENIED" operation="mkdir" class="file" profile="snap.opensearch.daemon" name="/nonexistent/" pid=96686 comm="java"
 requested_mask="c" denied_mask="c" fsuid=584788 ouid=584788                                
[32375.272431] audit: type=1400 audit(1719167881.721:1251): apparmor="DENIED" operation="mkdir" class="file" profile="snap.opensearch.daemon" name="/nonexistent/" pid=96686 comm="java"
 requested_mask="c" denied_mask="c" fsuid=584788 ouid=584788                                
[32375.272444] audit: type=1400 audit(1719167881.721:1252): apparmor="DENIED" operation="mkdir" class="file" profile="snap.opensearch.daemon" name="/nonexistent/" pid=96686 comm="java"
 requested_mask="c" denied_mask="c" fsuid=584788 ouid=584788

[github-actions]

https://warthogs.atlassian.net/browse/DPE-4731

[phvalguima]

Closed by #68