RabbitMQ
After starting rabbitmq-server service it is not possible to change password using:
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rabbitmqctl change_password guest password |
Error:
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Error: unable to connect to node rabbit@localhost: nodedown |
Solution:
In file /etc/systemd/system/multi-user.target.wants/rabbitmq-server.service change
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ExecStartPre=-/bin/sh -c "/usr/lib/rabbitmq/bin/rabbitmqctl status > /dev/null 2>&1" |
to – add sudo
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ExecStartPre=-/bin/sh -c "sudo /usr/lib/rabbitmq/bin/rabbitmqctl status > /dev/null 2>&1" |
And restart rabbitmq-server:
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systemctl restart rabbit-mq |
Nova incompatibility
Packages for nova which are downloaded with yum contain nova version which is incomaptible with that is running on controller node (Ubuntu):
Controller (Ubuntu 14.04):
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nova-manage version 2014.2 |
Compute (Centos 7):
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nova-manage version 2014.2.1-1.el7.centos |
Problem is described here:
https://ask.openstack.org/en/question/57296/juno-centos-7-buildabortexception-build-of-instance-aborted-failed-to-allocate-the-networks-not-rescheduling/?answer=57883#post-id-57883
Solution:
Install packages from EPEL repo manually (only 3 days older):
https://repos.fedorapeople.org/repos/openstack/openstack-juno/epel-7/
Packages to install:
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openstack-nova-common-2014.2-2.el7.centos.noarch.rpm openstack-nova-compute-2014.2-2.el7.centos.noarch.rpm python-nova-2014.2-2.el7.centos.noarch.rpm |
I had to forcefully install them using rpm -ivh –force then I restarted openstack-nova-compute service.
After this instances spawned correctly, yet I could not reach them (iptables rules missing, so I disabled iptables).
DHCP addresses got distributed to the instances correctly and I could reach internet from them via my Ubuntu-AIO which acts as a gateway to the internet as well.
