kayobe/ansible/overcloud-etc-hosts-fixup.yml
Mark Goddard 2d036b6afd Apply RabbitMQ workaround for issue #14 to all overcloud hosts
In some scenarios the RabbitMQ services may be running on hosts other than the
controllers. For example, when there are separate database servers.
2017-09-20 09:25:21 +00:00

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YAML

---
# For some currently unknown reason, overcloud hosts end up with multiple
# entries in /etc/hosts that map their own hostname to their provisioning
# network IP address, in addition to one that maps their own hostname to their
# internal network IP address. This causes RabbitMQ upgrades to fail, as
# RabbitMQ expects the system's hostname to resolve to the IP address on
# which it is listening. As a workaround, we remove the stale entries from
# /etc/hosts. See https://github.com/stackhpc/kayobe/issues/14.
- name: Ensure overcloud hosts' /etc/hosts does not contain provisioning network IP
hosts: overcloud
tasks:
- name: Ensure overcloud hosts' /etc/hosts does not contain provisioning network IP
lineinfile:
dest: /etc/hosts
regexp: "^{{ provision_oc_net_name | net_ip }}[ \t]*{{ inventory_hostname }}"
state: absent
when: provision_oc_net_name | net_ip != None
become: True
- name: Ensure rabbitmq containers' /etc/hosts does not contain provisioning network IP
hosts: overcloud
vars:
rabbitmq_containers:
- rabbitmq
- outward_rabbitmq
tasks:
- block:
- name: Check whether rabbitmq container is running
command: docker inspect -f {{ '{{.Id}}' }} {{ item }}
changed_when: False
failed_when: False
with_items: "{{ rabbitmq_containers }}"
register: ps_result
- name: Ensure rabbitmq containers' /etc/hosts does not contain provisioning network IP
command: >
docker exec -u root {{ item.item }}
bash -c
'cp /etc/hosts /tmp/hosts &&
sed -i -e "/^{{ provision_oc_net_name | net_ip }}[ \t]*{{ inventory_hostname }}/d" /tmp/hosts &&
if ! diff -q /tmp/hosts /etc/hosts >/dev/null; then
cp /tmp/hosts /etc/hosts &&
echo changed
fi &&
rm /tmp/hosts'
changed_when: "'changed' in sed_result.stdout"
with_items: "{{ ps_result.results }}"
when: item.rc == 0
register: sed_result
when: provision_oc_net_name | net_ip != None