Add support for hubble-export-file-max-backups and max-size-mb variables (#12072)

* feat(cilium): add configurable Hubble export log rotation parameters

- Adds support for `cilium_hubble_export_file_max_backups` and `cilium_hubble_export_file_max_size_mb`
- Applies values only if `cilium_hubble_export_file_path` is defined
- Default values are set in role defaults
- Cleans up template logic by removing unnecessary conditionals

* Fix indentation for hubble export settings

* Fix undefined variable issue with ipwrap in kubeconfig override that caused pre-commit errors

* Update main.yml

rollback

roles/network_plugin/cilium/defaults/main.yml

@@ -348,3 +348,6 @@ cilium_certgen_args:
 cilium_clusterrole_rules_operator_extra_vars: []
 cilium_enable_host_firewall: false
 cilium_policy_audit_mode: false
+
+cilium_hubble_export_file_max_backups: "5"
+cilium_hubble_export_file_max_size_mb: "10"

roles/network_plugin/cilium/templates/cilium/config.yml.j2

@@ -221,6 +221,8 @@ data:
   hubble-tls-key-file: /var/lib/cilium/tls/hubble/server.key
   hubble-tls-client-ca-files: /var/lib/cilium/tls/hubble/client-ca.crt
 {% endif %}
+  hubble-export-file-max-backups: "{{ cilium_hubble_export_file_max_backups }}"
+  hubble-export-file-max-size-mb: "{{ cilium_hubble_export_file_max_size_mb }}"
 {% endif %}
 
   # IP Masquerade Agent