open stack operations guide
TRANSCRIPT
OpenStack operations guideFernando López / Alessandro M. MartelloneCloud Architect, TID / CREATE-Net
• source openrc
– export OS_TENANT_NAME=<name of the tenant>
– export OS_USERNAME=<user name>
– export OS_PASSWORD=<user password>
– export OS_AUTH_URL=<keystone url>
– export OS_AUTH_STRATEGY=keystone
– export SERVICE_TOKEN=<service token>
– export SERVICE_ENDPOINT=<keystone service endpoint>
• OpenStack Identity
– service keystone start/stop/restart
Services management
• Following this presentation you will be able to:
– Manage flavours, images, keypair via CLI
– Launch a VM via CLI
– Services management
– Logging and monitoring
– Backup
• You should have deployed an environment with at least 1 controller and 1 compute node.
Goals
• Flavor list
• Image list
• Add keypair
Flavor, image list, keypair
Launch an instance from an image
• Image Service
– service glance-api start/stop/restart
– service glance-registry start/stop/restart
Services management
• OpenStack Compute
– service nova-api start/stop/restart
– service nova-scheduler start/stop/restart
– service nova-conductor start/stop/restart
– service nova-cert start/stop/restart
– service nova-consoleauth start/stop/restart
– service nova-novncproxy start/stop/restart
Services management
• OpenStack Block Storage
– service cinder-api start/stop/restart
– service cinder-scheduler start/stop/restart
Services management
Logging and monitoringWhere are log files located?
• Because your cloud is most likely composed of many
servers, you must check logs on each of those servers to
properly piece an event together.
• A better solution is to send the logs of all servers to a
central location so that they can all be accessed from the
same area.
• ITBox manages centrally the logs in /var/log/remote
directory.
Logging and monitoring
• A basic type of alert monitoring is to simply check and see
whether a required process is running. For example,
ensure that the nova-api service is running on the cloud
controller:
ps aux | grep nova-api nova 12786 0.0 0.0 37952 1312 ? Ss
Feb11 0:00 su -s /bin/sh -c exec nova-api --config-
file=/etc/nova/nova.conf nova nova 12787 0.0 0.1 135764
57400
Logging and monitoring
• You can create automated alerts for critical processes by
using Nagios and NRPE. For example, to ensure that the
nova-compute process is running on compute nodes,
create an alert on your Nagios server that looks like this:
– define service {
host_name c01.example.com
check_command check_nrpe_1arg!check_nova-compute
use generic-service notification_period 24x7
contact_groups sysadmins
service_description nova-compute
}
Logging and monitoring
• We will describe only how to back up configuration files and databases that the various OpenStack components need to run.
– Database
– Compute
– Image catalog
• /var/lib/glance/images. where the images are stored (If you are using a file-based backend of glance)
• /var/lib/cinder where the volumes are stored.
– Object Storage
• At http://bit.ly/1iDL0z5 an backup script.
Backup
Thanks!Thanks!