Hi folks,

Recently RabbitMQ has changed a repository URL for RabbitMQ and Erlang packages for Ubuntu and Debian.
We were using ppa1.rabbitmq.com for all our stable branches, which used to work nicely until recently.

With that being said, all existing users need to update their configuration, to use a new repository.

For that:

* Download GPG key to your deploy host (the one referenced on https://www.rabbitmq.com/docs/install-debian)

curl -1sLf https://keys.openpgp.org/vks/v1/by-fingerprint/0A9AF2115F4687BD29803A206B73A36E6026DFCA -o /etc/openstack_deploy/pki/rabbitmq.gpg

* Create /etc/openstack_deploy/group_vars/rabbitmq_all.yml with content:

rabbitmq_repo_url: https://deb1.rabbitmq.com/rabbitmq-server/{{ ansible_facts['distribution'] | lower }}/{{ ansible_facts['distribution_release'] | lower }}
rabbitmq_erlang_repo_url: https://deb1.rabbitmq.com/rabbitmq-erlang/{{ ansible_facts['distribution'] | lower }}/{{ ansible_facts['distribution_release'] | lower }}
rabbitmq_gpg_keys:
  - file: /etc/openstack_deploy/pki/rabbitmq.gpg

This should fix all existing deployments, while we are proposing and backporting patches for all maintained branches. So a proper fix is expected with the next bugfix release.