Add cluster dump artifact in CI jobs (#5796)

tests/testcases/roles/cluster-dump/tasks/main.yml

@@ -0,0 +1,18 @@
+---
+- name: Generate dump folder
+  shell: "{{ bin_dir }}/kubectl cluster-info dump --all-namespaces --output-directory /tmp/cluster-dump"
+  no_log: true
+  when: inventory_hostname in groups['kube-master']
+
+- name: Compress directory cluster-dump
+  archive:
+    path: /tmp/cluster-dump
+    dest: /tmp/cluster-dump.tgz
+  when: inventory_hostname in groups['kube-master']
+
+- name: Fetch dump file
+  fetch:
+    src: /tmp/cluster-dump.tgz
+    dest: "{{ lookup('env', 'CI_PROJECT_DIR') }}/cluster-dump/{{ inventory_hostname }}.tgz"
+    flat: true
+  when: inventory_hostname in groups['kube-master']