diff options
| -rw-r--r-- | playbooks/provisioning/openstack/README.md | 14 | ||||
| -rw-r--r-- | playbooks/provisioning/openstack/sample-inventory/group_vars/all.yml | 4 | ||||
| -rw-r--r-- | roles/dns-views/defaults/main.yml | 4 | ||||
| -rw-r--r-- | roles/dns-views/tasks/main.yml | 7 |
4 files changed, 28 insertions, 1 deletions
diff --git a/playbooks/provisioning/openstack/README.md b/playbooks/provisioning/openstack/README.md index 57d5839c8..b898351e6 100644 --- a/playbooks/provisioning/openstack/README.md +++ b/playbooks/provisioning/openstack/README.md @@ -94,6 +94,8 @@ default hostname (usually the role name) is used. The `public_dns_nameservers` is a list of DNS servers accessible from all the created Nova servers. These will be serving as your DNS forwarders for external FQDNs that do not belong to the cluster's DNS domain and its subdomains. +If you're unsure what to put in here, you can try the google or opendns servers, +but note that some organizations may be blocking them. The `openshift_use_dnsmasq` controls either dnsmasq is deployed or not. By default, dnsmasq is deployed and comes as the hosts' /etc/resolv.conf file @@ -244,6 +246,18 @@ be the case for development environments. When turned off, the servers will be provisioned omitting the ``yum update`` command. This brings security implications though, and is not recommended for production deployments. +##### DNS servers security options + +Aside from `node_ingress_cidr` restricting public access to in-stack DNS +servers, there are following (bind/named specific) DNS security +options available: + + named_public_recursion: 'no' + named_private_recursion: 'yes' + +External DNS servers, which is not included in the 'dns' hosts group, +are not managed. It is up to you to configure such ones. + ### Configure the OpenShift parameters Finally, you need to update the DNS entry in diff --git a/playbooks/provisioning/openstack/sample-inventory/group_vars/all.yml b/playbooks/provisioning/openstack/sample-inventory/group_vars/all.yml index 4b077be0a..5028141d2 100644 --- a/playbooks/provisioning/openstack/sample-inventory/group_vars/all.yml +++ b/playbooks/provisioning/openstack/sample-inventory/group_vars/all.yml @@ -92,6 +92,10 @@ rhsm_register: False # key_algorithm: 'hmac-md5' # server: '192.168.1.2' +# # Customize DNS server security options +#named_public_recursion: 'no' +#named_private_recursion: 'yes' + # NOTE(shadower): Do not change this value. The Ansible user is currently # hardcoded to `openshift`. diff --git a/roles/dns-views/defaults/main.yml b/roles/dns-views/defaults/main.yml new file mode 100644 index 000000000..c9f8248af --- /dev/null +++ b/roles/dns-views/defaults/main.yml @@ -0,0 +1,4 @@ +--- +external_nsupdate_keys: {} +named_private_recursion: 'yes' +named_public_recursion: 'no' diff --git a/roles/dns-views/tasks/main.yml b/roles/dns-views/tasks/main.yml index 7165b4269..ffbad2e3f 100644 --- a/roles/dns-views/tasks/main.yml +++ b/roles/dns-views/tasks/main.yml @@ -8,18 +8,23 @@ set_fact: private_named_view: - name: "private" + recursion: "{{ named_private_recursion }}" acl_entry: "{{ acl_list }}" zone: - dns_domain: "{{ full_dns_domain }}" + forwarder: "{{ public_dns_nameservers }}" + when: external_nsupdate_keys['private'] is undefined - name: "Generate the public view" set_fact: public_named_view: - name: "public" + recursion: "{{ named_public_recursion }}" zone: - dns_domain: "{{ full_dns_domain }}" forwarder: "{{ public_dns_nameservers }}" + when: external_nsupdate_keys['public'] is undefined - name: "Generate the final named_config_views" set_fact: - named_config_views: "{{ private_named_view + public_named_view }}" + named_config_views: "{{ private_named_view|default([]) + public_named_view|default([]) }}" |