From 677c4b98cf9e0165d1342389b77b2810ea2a3ec1 Mon Sep 17 00:00:00 2001
From: Scott Dodson <sdodson@redhat.com>
Date: Fri, 29 Jan 2016 10:49:11 -0500
Subject: Add an early check to ensure that node names resolve to an interface
 on the host

---
 playbooks/common/openshift-cluster/config.yml      |  2 ++
 .../openshift-cluster/validate_hostnames.yml       | 26 ++++++++++++++++++++++
 2 files changed, 28 insertions(+)
 create mode 100644 playbooks/common/openshift-cluster/validate_hostnames.yml

(limited to 'playbooks')

diff --git a/playbooks/common/openshift-cluster/config.yml b/playbooks/common/openshift-cluster/config.yml
index 11e5b68f6..2cad4b362 100644
--- a/playbooks/common/openshift-cluster/config.yml
+++ b/playbooks/common/openshift-cluster/config.yml
@@ -1,6 +1,8 @@
 ---
 - include: evaluate_groups.yml
 
+- include: validate_hostnames.yml
+
 - include: ../openshift-docker/config.yml
 
 - include: ../openshift-etcd/config.yml
diff --git a/playbooks/common/openshift-cluster/validate_hostnames.yml b/playbooks/common/openshift-cluster/validate_hostnames.yml
new file mode 100644
index 000000000..047431b63
--- /dev/null
+++ b/playbooks/common/openshift-cluster/validate_hostnames.yml
@@ -0,0 +1,26 @@
+---
+- include: evaluate_groups.yml
+
+- name: Gather and set facts for node hosts
+  hosts: oo_nodes_to_config
+  roles:
+  - openshift_facts
+  tasks:
+  - openshift_facts:
+      role: "{{ item.role }}"
+      local_facts: "{{ item.local_facts }}"
+    with_items:
+      - role: common
+        local_facts:
+          hostname: "{{ openshift_hostname | default(None) }}"
+          public_hostname: "{{ openshift_public_hostname | default(None) }}"
+  - shell:
+      getent ahostsv4 {{ openshift.common.hostname }} | head -n 1 | awk '{ print $1 }'
+    register: lookupip
+    changed_when: false
+    failed_when: false
+  - name: Warn user about bad openshift_hostname values
+    pause:
+       prompt: "The hostname \"{{ openshift.common.hostname }}\" for \"{{ ansible_nodename }}\" doesn't resolve to an ip address owned by this host. Please set openshift_hostname variable to a hostname that when resolved on the host in question resolves to an IP address matching an interface on this host. This host will fail liveness checks for pods utilizing hostPorts, press CTRL-C to continue."
+       seconds: "{{ 10 if openshift_override_hostname_check | default(false) | bool else omit }}"
+    when: lookupip.stdout not in ansible_all_ipv4_addresses
-- 
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