This builds the deployment guide that will be published to https://docs.openstack.org/project-deploy-guide/newton/. In this approach, all existing documents in kolla-ansible/doc directory will remain. The kolla-ansible/deploy-guide directory will simply include all documents that exist in the kolla-ansible/doc directory. All new changes will be made to the documents in the docs directory which will be imported to the deployment-guide. However, I believe we will also have to build the deployment-guide every time a change is merged to the docs in the doc directory. Change-Id: I98db4ec45403cf48086381b45bf5a12bbf998911
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Troubleshooting Guide
Failures
If Kolla fails, often it is caused by a CTRL-C during the deployment
process or a problem in the globals.yml
configuration.
To correct the problem where Operators have a misconfigured environment, the Kolla community has added a precheck feature which ensures the deployment targets are in a state where Kolla may deploy to them. To run the prechecks, execute:
kolla-ansible prechecks
If a failure during deployment occurs it nearly always occurs during evaluation of the software. Once the Operator learns the few configuration options required, it is highly unlikely they will experience a failure in deployment.
Deployment may be run as many times as desired, but if a failure in a bootstrap task occurs, a further deploy action will not correct the problem. In this scenario, Kolla's behavior is undefined.
The fastest way during to recover from a deployment failure is to remove the failed deployment:
kolla-ansible destroy -i <<inventory-file>>
Any time the tags of a release change, it is possible that the container implementation from older versions won't match the Ansible playbooks in a new version. If running multinode from a registry, each node's Docker image cache must be refreshed with the latest images before a new deployment can occur. To refresh the docker cache from the local Docker registry:
kolla-ansible pull
Debugging Kolla
The status of containers after deployment can be determined on the deployment targets by executing:
docker ps -a
If any of the containers exited, this indicates a bug in the container. Please seek help by filing a launchpad bug or contacting the developers via IRC.
The logs can be examined by executing:
docker exec -it heka bash
The logs from all services in all containers may be read from
/var/log/kolla/SERVICE_NAME
If the stdout logs are needed, please run:
docker logs <container-name>
Note that most of the containers don't log to stdout so the above command will provide no information.
To learn more about Docker command line operation please refer to Docker documentation.
When enable_central_logging
is enabled, to view the logs
in a web browser using Kibana, go to:
http://<kolla_internal_vip_address>:<kibana_server_port>
or http://<kolla_external_vip_address>:<kibana_server_port>
and authenticate using <kibana_user>
and
<kibana_password>
.
The values <kolla_internal_vip_address>
,
<kolla_external_vip_address>
<kibana_server_port>
and
<kibana_user>
can be found in
<kolla_install_path>/kolla/ansible/group_vars/all.yml
or if the default values are overridden, in
/etc/kolla/globals.yml
. The value of
<kibana_password>
can be found in
/etc/kolla/passwords.yml
.
Note
When you log in to Kibana web interface for the first time, you are
prompted to create an index. Please create an index using the name
log-*
. This step is necessary until the default Kibana
dashboard is implemented in Kolla.