diff options
Diffstat (limited to 'roles/dns')
| -rw-r--r-- | roles/dns/README.md | 43 | ||||
| -rw-r--r-- | roles/dns/handlers/main.yml | 4 | ||||
| -rw-r--r-- | roles/dns/meta/main.yml | 7 | ||||
| -rw-r--r-- | roles/dns/tasks/main.yml | 22 | ||||
| -rw-r--r-- | roles/dns/templates/named.conf | 23 | ||||
| -rw-r--r-- | roles/dns/templates/openshift-cluster.zone | 14 |
6 files changed, 113 insertions, 0 deletions
diff --git a/roles/dns/README.md b/roles/dns/README.md new file mode 100644 index 000000000..e238fb92e --- /dev/null +++ b/roles/dns/README.md @@ -0,0 +1,43 @@ +dns +=== + +Configure a DNS server serving IPs of all the nodes of the cluster + +Requirements +------------ + +None + +Role Variables +-------------- + +| Name | Mandatory / Optional | Description | +|------|----------------------|-------------| +| `dns_zones` | Mandatory | DNS zones in which we must find the hosts | +| `dns_forwarders` | If not set, the DNS will be a recursive non-forwarding DNS server | DNS forwarders to delegate the requests for hosts outside of `dns_zones` | +| `dns_all_hosts` | Mandatory | Exhaustive list of hosts | + +Dependencies +------------ + +None + +Example Playbook +---------------- + + - hosts: dns_hosts + roles: + - role: dns + dns_forwarders: [ '8.8.8.8', '8.8.4.4' ] + dns_zones: [ novalocal, openstacklocal ] + dns_all_hosts: "{{ g_all_hosts }}" + +License +------- + +ASL 2.0 + +Author Information +------------------ + +OpenShift operations, Red Hat, Inc diff --git a/roles/dns/handlers/main.yml b/roles/dns/handlers/main.yml new file mode 100644 index 000000000..ef101785e --- /dev/null +++ b/roles/dns/handlers/main.yml @@ -0,0 +1,4 @@ +- name: restart bind + service: + name: named + state: restarted diff --git a/roles/dns/meta/main.yml b/roles/dns/meta/main.yml new file mode 100644 index 000000000..b6e9d9ad0 --- /dev/null +++ b/roles/dns/meta/main.yml @@ -0,0 +1,7 @@ +--- +galaxy_info: + author: Lénaïc Huard + description: Deploy and configure a DNS server + company: Amadeus SAS + license: ASL 2.0 +dependencies: [] diff --git a/roles/dns/tasks/main.yml b/roles/dns/tasks/main.yml new file mode 100644 index 000000000..af728585d --- /dev/null +++ b/roles/dns/tasks/main.yml @@ -0,0 +1,22 @@ +- name: Install Bind + action: "{{ ansible_pkg_mgr }} name=bind" + +- name: Configure Bind + template: + src: "{{ item.src }}" + dest: "{{ item.dest }}" + validate: "{{ item.validate }}" + with_items: + - src: openshift-cluster.zone + dest: /var/named/openshift-cluster.zone + validate: "named-checkzone {{ dns_zones[0] }} %s" + - src: named.conf + dest: /etc/named.conf + validate: "named-checkconf %s" + notify: restart bind + +- name: Enable Bind + service: + name: named + state: started + enabled: yes diff --git a/roles/dns/templates/named.conf b/roles/dns/templates/named.conf new file mode 100644 index 000000000..22c1ff935 --- /dev/null +++ b/roles/dns/templates/named.conf @@ -0,0 +1,23 @@ +options +{ + directory "/var/named"; + + allow-query { {{ ansible_default_ipv4.network }}/24; }; + + recursion yes; + +{% if dns_forwarders is defined %} + forwarders { + {% for dns in dns_forwarders %} + {{ dns }}; + {% endfor %} + }; +{% endif %} +}; +{% for zone in dns_zones %} + +zone "{{ zone }}" IN { + type master; + file "openshift-cluster.zone"; +}; +{% endfor %} diff --git a/roles/dns/templates/openshift-cluster.zone b/roles/dns/templates/openshift-cluster.zone new file mode 100644 index 000000000..03f5dc089 --- /dev/null +++ b/roles/dns/templates/openshift-cluster.zone @@ -0,0 +1,14 @@ +$TTL 1d +@ IN SOA {{ ansible_hostname }} openshift ( + {{ ansible_date_time.epoch }} ; Serial (To be fixed before 2039) + 12h ; Refresh + 3m ; Retry + 4w ; Expire + 3h ; TTL for negative replies + ) + + IN NS {{ ansible_hostname }} +{{ ansible_hostname }} IN A {{ ansible_default_ipv4.address }} +{% for host in dns_all_hosts %} +{{ hostvars[host].ansible_hostname }} IN A {{ hostvars[host]['ansible_default_ipv4'].address }} +{% endfor %} |