fix: set sysctl settings for fs.inotify (#1148)

ansible/group_vars/all/defaults.yaml

@@ -110,3 +110,7 @@ nvidia_runfile_installer_url: "https://download.nvidia.com/XFree86/Linux-x86_64/
 suse_packagehub_product: PackageHub/{{ ansible_distribution_version }}/{{ ansible_architecture }}
 
 pinned_debs: []
+
+sysctl_conf_file: >-
+  {{ '/etc/sysctl.d/99-sysctl.conf' if ansible_os_family in ['Common Base Linux Mariner', 'Flatcar', 'Microsoft Azure Linux', 'VMware Photon OS']
+    else '/etc/sysctl.conf' }}

ansible/roles/providers/tasks/misc.yml

@@ -99,3 +99,15 @@
     packer_builder_type is search('vmware') or
     packer_builder_type is search('vsphere')) and
     ansible_os_family != "Flatcar"
+
+- name: Set and persist kernel params
+  ansible.posix.sysctl:
+    name: "{{ item.param }}"
+    value: "{{ item.val }}"
+    state: present
+    sysctl_set: true
+    sysctl_file: "{{ sysctl_conf_file }}"
+    reload: true
+  loop:
+    - { param: fs.inotify.max_user_instances, val: 8192 }
+    - { param: fs.inotify.max_user_watches, val: 524288 }