[SURE-9010] Gitjob pod cannot create known_hosts, read-only filesystem

[manno]

SURE-9010 - Gitrepos are in Error state with read-only file system

• add emptydir mount on tmp
• the security context should not be disabled when running e2e tests. can we still enable debug logging, do we want to?
• sharding tests should not rely on debug logging: https://github.com/rancher/fleet/actions/runs/10809800641/job/29987822349?pr=2830

[manno]

• the security context should not be disabled when running e2e tests. can we still enable debug logging, do we want to?
• sharding tests should not rely on debug logging: https://github.com/rancher/fleet/actions/runs/10809800641/job/29987822349?pr=2830

[kkaempf]

Wouldn't this validate a 2.9.2 backport ?

[manno]

Wouldn't this validate a 2.9.2 backport ?

We created separate backport issues: #2828

[mmartin24]

Checked and working in v2.10.0-alpha5 with fleet:105.0.0+up0.11.0-beta.3

Automation checking known-hosts with private gitrepos ok here

Manually rechecked that:

• known-host is created and gitrepo needing it is correctly deployed. Confirmed secret is created.
• 
• Gitrepo is not created if known-host is not passed and needs it