Remove the DNS VM on OpenStack

playbooks/openstack/openshift-cluster/dns.yml

@@ -1,52 +0,0 @@
-- name: Populate oo_dns_hosts_to_update group
-  hosts: localhost
-  connection: local
-  become: no
-  gather_facts: no
-  vars_files:
-  - vars.yml
-  - cluster_hosts.yml
-  tasks:
-  - name: Evaluate oo_dns_hosts_to_update
-    add_host:
-      name: "{{ item }}"
-      groups: oo_dns_hosts_to_update
-      ansible_ssh_user: "{{ deployment_vars[deployment_type].ssh_user }}"
-      ansible_become: "{{ deployment_vars[deployment_type].become }}"
-    with_items: "{{ groups[cluster_id ~ '-dns'] }}"
-
-  - name: Evaluate oo_hosts_to_add_in_dns
-    add_host:
-      name: "{{ item }}"
-      groups: oo_hosts_to_add_in_dns
-      ansible_ssh_user: "{{ deployment_vars[deployment_type].ssh_user }}"
-      ansible_become: "{{ deployment_vars[deployment_type].become }}"
-    with_items: "{{ groups['meta-clusterid_' ~ cluster_id] }}"
-
-- name: Gather facts
-  hosts: oo_hosts_to_add_in_dns
-  vars_files:
-  - vars.yml
-  - cluster_hosts.yml
-
-- name: Configure the DNS
-  hosts: oo_dns_hosts_to_update
-  vars_files:
-  - vars.yml
-  - cluster_hosts.yml
-  roles:
-    # Explicitly calling openshift_facts because it appears that when
-    # rhel_subscribe is skipped that the openshift_facts dependency for
-    # openshift_repos is also skipped (this is the case at least for Ansible
-    # 2.0.2)
-    - openshift_facts
-    - role: rhel_subscribe
-      when: deployment_type in ["enterprise", "atomic-enterprise", "openshift-enterprise"] and
-            ansible_distribution == "RedHat" and
-            lookup('oo_option', 'rhel_skip_subscription') | default(rhsub_skip, True) |
-              default('no', True) | lower in ['no', 'false']
-
-    - { role: dns,
-        dns_forwarders: "{{ openstack_network_dns }}",
-        dns_zones: [ example.com ],
-        dns_all_hosts: "{{ g_all_hosts }}" }

playbooks/openstack/openshift-cluster/files/heat_stack.yaml

@@ -88,11 +88,6 @@ parameters:
     label: Infra image
     description: Name of the image for the infra node servers
 
-  dns_image:
-    type: string
-    label: DNS image
-    description: Name of the image for the DNS server
-
   etcd_flavor:
     type: string
     label: Etcd flavor
@@ -113,11 +108,6 @@ parameters:
     label: Infra flavor
     description: Flavor of the infra node servers
 
-  dns_flavor:
-    type: string
-    label: DNS flavor
-    description: Flavor of the DNS server
-
 outputs:
 
   etcd_names:
@@ -168,26 +158,6 @@ outputs:
     description: Floating IPs of the nodes
     value: { get_attr: [ infra_nodes, floating_ip ] }
 
-  dns_name:
-    description: Name of the DNS
-    value:
-      get_attr:
-        - dns
-        - name
-
-  dns_floating_ip:
-    description: Floating IP of the DNS
-    value:
-      get_attr:
-        - dns
-        - addresses
-        - str_replace:
-            template: openshift-ansible-cluster_id-net
-            params:
-              cluster_id: { get_param: cluster_id }
-        - 1
-        - addr
-
 resources:
 
   net:
@@ -213,22 +183,7 @@ resources:
           template: subnet_24_prefix.0/24
           params:
             subnet_24_prefix: { get_param: subnet_24_prefix }
-      allocation_pools:
-        - start:
-            str_replace:
-              template: subnet_24_prefix.3
-              params:
-                subnet_24_prefix: { get_param: subnet_24_prefix }
-          end:
-            str_replace:
-              template: subnet_24_prefix.254
-              params:
-                subnet_24_prefix: { get_param: subnet_24_prefix }
-      dns_nameservers:
-        - str_replace:
-            template: subnet_24_prefix.2
-            params:
-              subnet_24_prefix: { get_param: subnet_24_prefix }
+      dns_nameservers: { get_param: dns_nameservers }
 
   router:
     type: OS::Neutron::Router
@@ -428,44 +383,6 @@ resources:
           port_range_min: 443
           port_range_max: 443
 
-  dns-secgrp:
-    type: OS::Neutron::SecurityGroup
-    properties:
-      name:
-        str_replace:
-          template: openshift-ansible-cluster_id-dns-secgrp
-          params:
-            cluster_id: { get_param: cluster_id }
-      description:
-        str_replace:
-          template: Security group for cluster_id cluster DNS
-          params:
-            cluster_id: { get_param: cluster_id }
-      rules:
-        - direction: ingress
-          protocol: tcp
-          port_range_min: 22
-          port_range_max: 22
-          remote_ip_prefix: { get_param: ssh_incoming }
-        - direction: ingress
-          protocol: udp
-          port_range_min: 53
-          port_range_max: 53
-          remote_mode: remote_group_id
-          remote_group_id: { get_resource: etcd-secgrp }
-        - direction: ingress
-          protocol: udp
-          port_range_min: 53
-          port_range_max: 53
-          remote_mode: remote_group_id
-          remote_group_id: { get_resource: master-secgrp }
-        - direction: ingress
-          protocol: udp
-          port_range_min: 53
-          port_range_max: 53
-          remote_mode: remote_group_id
-          remote_group_id: { get_resource: node-secgrp }
-
   etcd:
     type: OS::Heat::ResourceGroup
     properties:
@@ -599,92 +516,3 @@ resources:
                 cluster_id: { get_param: cluster_id }
     depends_on:
       - interface
-
-  dns:
-    type: OS::Nova::Server
-    properties:
-      name:
-        str_replace:
-          template: cluster_id-dns
-          params:
-            cluster_id: { get_param: cluster_id }
-      key_name: { get_resource: keypair }
-      image:    { get_param: dns_image }
-      flavor:   { get_param: dns_flavor }
-      networks:
-        - port: { get_resource: dns-port }
-      user_data: { get_resource: dns-config }
-      user_data_format: RAW
-
-  dns-port:
-    type: OS::Neutron::Port
-    properties:
-      network: { get_resource: net }
-      fixed_ips:
-        - subnet: { get_resource: subnet }
-          ip_address:
-            str_replace:
-              template: subnet_24_prefix.2
-              params:
-                subnet_24_prefix: { get_param: subnet_24_prefix }
-      security_groups:
-        - { get_resource: dns-secgrp }
-
-  dns-floating-ip:
-    type: OS::Neutron::FloatingIP
-    properties:
-      floating_network: { get_param: external_net }
-      port_id: { get_resource: dns-port }
-
-  dns-config:
-    type: OS::Heat::CloudConfig
-    properties:
-      cloud_config:
-        disable_root: true
-
-        hostname:
-          str_replace:
-            template: cluster_id-dns
-            params:
-              cluster_id: { get_param: cluster_id }
-        fqdn:
-          str_replace:
-            template: cluster_id-dns.example.com
-            params:
-              cluster_id: { get_param: cluster_id }
-
-        system_info:
-          default_user:
-            name: openshift
-            sudo: ["ALL=(ALL) NOPASSWD: ALL"]
-
-        write_files:
-          - path: /etc/sudoers.d/00-openshift-no-requiretty
-            permissions: 440
-            # content: Defaults:openshift !requiretty
-            # Encoded in base64 to be sure that we do not forget the trailing newline or
-            # sudo will not be able to parse that file
-            encoding: b64
-            content: RGVmYXVsdHM6b3BlbnNoaWZ0ICFyZXF1aXJldHR5Cg==
-          - path: /etc/sysconfig/network-scripts/ifcfg-eth0
-            content:
-              str_replace:
-                template: |
-                  DEVICE="eth0"
-                  BOOTPROTO="dhcp"
-                  DNS1="$dns1"
-                  DNS2="$dns2"
-                  PEERDNS="no"
-                  ONBOOT="yes"
-                params:
-                  $dns1:
-                    get_param:
-                      - dns_nameservers
-                      - 0
-                  $dns2:
-                    get_param:
-                      - dns_nameservers
-                      - 1
-
-        runcmd:
-          - [ "/usr/bin/systemctl", "restart", "network" ]

playbooks/openstack/openshift-cluster/files/heat_stack_server.yaml

@@ -136,11 +136,6 @@ resources:
         disable_root: true
 
         hostname: { get_param: name }
-        fqdn:
-          str_replace:
-            template: name.example.com
-            params:
-              name: { get_param: name }
 
         system_info:
           default_user:

playbooks/openstack/openshift-cluster/launch.yml

@@ -42,12 +42,10 @@
              -P master_image={{ deployment_vars[deployment_type].image }}
              -P node_image={{ deployment_vars[deployment_type].image }}
              -P infra_image={{ deployment_vars[deployment_type].image }}
-             -P dns_image={{ deployment_vars[deployment_type].image }}
              -P etcd_flavor={{ openstack_flavor["etcd"] }}
              -P master_flavor={{ openstack_flavor["master"] }}
              -P node_flavor={{ openstack_flavor["node"] }}
              -P infra_flavor={{ openstack_flavor["infra"] }}
-             -P dns_flavor={{ openstack_flavor["dns"] }}
              openshift-ansible-{{ cluster_id }}-stack'
     args:
       chdir: '{{ playbook_dir }}'
@@ -156,14 +154,6 @@
       - '{{ parsed_outputs.infra_ips }}'
       - '{{ parsed_outputs.infra_floating_ips }}'
 
-  - name: Add DNS groups and variables
-    add_host:
-      hostname: '{{ parsed_outputs.dns_name }}'
-      ansible_ssh_host: '{{ parsed_outputs.dns_floating_ip }}'
-      ansible_ssh_user: "{{ deployment_vars[deployment_type].ssh_user }}"
-      ansible_become: "{{ deployment_vars[deployment_type].become }}"
-      groups: '{{ cluster_id }}-dns'
-
   - name: Wait for ssh
     wait_for:
       host: '{{ item }}'
@@ -172,7 +162,6 @@
       - '{{ parsed_outputs.master_floating_ips }}'
       - '{{ parsed_outputs.node_floating_ips }}'
       - '{{ parsed_outputs.infra_floating_ips }}'
-      - '{{ parsed_outputs.dns_floating_ip }}'
 
   - name: Wait for user setup
     command: 'ssh -o StrictHostKeyChecking=no -o PasswordAuthentication=no -o ConnectTimeout=10 -o UserKnownHostsFile=/dev/null {{ deployment_vars[deployment_type].ssh_user }}@{{ item }} echo {{ deployment_vars[deployment_type].ssh_user }} user is setup'
@@ -184,7 +173,6 @@
       - '{{ parsed_outputs.master_floating_ips }}'
       - '{{ parsed_outputs.node_floating_ips }}'
       - '{{ parsed_outputs.infra_floating_ips }}'
-      - '{{ parsed_outputs.dns_floating_ip }}'
 
 - include: update.yml
 

playbooks/openstack/openshift-cluster/update.yml

@@ -15,8 +15,6 @@
   - include_vars: vars.yml
   - include_vars: cluster_hosts.yml
 
-- include: dns.yml
-
 - name: Populate oo_hosts_to_update group
   hosts: localhost
   connection: local

playbooks/openstack/openshift-cluster/vars.yml

@@ -15,7 +15,6 @@ openstack_ssh_access_from:      "{{ lookup('oo_option', 'ssh_from')          |
 openstack_node_port_access_from: "{{ lookup('oo_option', 'node_port_from')   |
                                     default('0.0.0.0/0',                     True) }}"
 openstack_flavor:
-  dns:    "{{ lookup('oo_option', 'dns_flavor'       ) | default('m1.small',  True) }}"
   etcd:   "{{ lookup('oo_option', 'etcd_flavor'      ) | default('m1.small',  True) }}"
   master: "{{ lookup('oo_option', 'master_flavor'    ) | default('m1.small',  True) }}"
   infra:  "{{ lookup('oo_option', 'infra_flavor'     ) | default('m1.small',  True) }}"