feat: Add a task to template DNS config

ansible/group_vars/all

@@ -17,6 +17,11 @@
 # cheaha.node related
   hostname_lookup_table:
     - "10.141.255.254 master.cm.cluster master localmaster.cm.cluster localmaster ldapserver.cm.cluster ldapserver"
+  domain_search_list:
+    - openstack.internal
+    - cm.cluster
+  nameserver_list:
+    - 10.141.255.254
 
 # ldap_config related
   ldap_cert_path: "/etc/openldap/certs"

ansible/roles/cheaha.node/tasks/main.yml

@@ -12,6 +12,15 @@
     insertbefore: BOF
     line: 'append domain-name " cm.cluster rc.uab.edu ib.cluster drac.cluster eth.cluster ib-hdr.cluster";'
 
+- name: Template resolv.conf
+  ansible.builtin.template:
+    src: resolv.conf.j2
+    dest: /etc/resolv.conf
+    owner: root
+    group: root
+    mode: 0644
+    backup: true
+
 - name: Disable SELinux
   ansible.posix.selinux:
     state: disabled

ansible/roles/cheaha.node/templates/resolv.conf.j2

+search {{ domain_search_list | join(' ') }}
+{% for name_server in nameserver_list %}
+nameserver {{ name_server }}
+{% endfor %}