Frequently Asked Questions About Contrail and Helm Charts
This topic presents frequently asked questions and answers about Contrail and Helm Charts.
How do I set up the vhost0 interface for the vrouter on the non-management interface of the compute node?
Some Contrail versions assume a single name for all of the non-management interfaces in your cluster.
If your non-management interface is eth1, in the contrail-vrouter/values.yaml set the contrail_env.PHYSICAL_INTERFACE to eth1 and set the contrail_env.VROUTER_GATEWAY to the IP address of the non-management gateway.
# Sample config contrail_env: CONTROLLER_NODES: 1.1.1.10 LOG_LEVEL: SYS_NOTICE CLOUD_ORCHESTRATOR: openstack AAA_MODE: cloud-admin PHYSICAL_INTERFACE: eth1 VROUTER_GATEWAY: 1.1.1.1
How do I configure the Contrail control BGP server to listen on a different port?
To configure a non-default BGP port, in the contrail-controller/values.yaml set the contrail_env.BGP to the desired
port.
# Sample config contrail_env: CONTROLLER_NODES: 1.1.1.10 LOG_LEVEL: SYS_NOTICE CLOUD_ORCHESTRATOR: openstack AAA_MODE: cloud-admin BGP_PORT: 1179
How can I pass additional parameters to services in Contrail by using the configuration file in INI format?
The following example configures the minimum_diskGB parameter for the node manager of the analytics database.
# Sample config contrail_env: DATABASE_NODEMGR__DEFAULTS__minimum_diskGB: "2"
How do I configure services for the vrouter agent?
The following is an example configuration for the vrouter agent.
# Sample config contrail_env: VROUTER_AGENT__FLOWS__thread_count: "2" VROUTER_AGENT__METADATA__metadata_use_ssl = True VROUTER_AGENT__METADATA__metadata_client_cert = /usr/share/ca-certificates/contrail/client_cert.pem VROUTER_AGENT__METADATA__metadata_client_key = /usr/share/ca-certificates/contrail/client_key.pem VROUTER_AGENT__METADATA__metadata_ca_cert = /usr/share/ca-certificates/contrail/cacert.pem
What are the Contrail services that can be configured?
Configurable services at this time include the following:
Configurable services for config node:
SVC_MONITOR
API
DEVICE_MANAGER
SCHEMA
CONFIG_NODEMGR
Configurable services for control:
CONTROL
DNS
CONTROL_NODEMGR
Configurable services for analytics:
ALARM_GEN
TOPOLOGY
ANALYTICS_API
COLLECTOR
SNMP_COLLECTOR
QUERY_ENGINE
ANALYTICS_NODEMGR
Configurable services for database:
DATABASE_NODEMGR
Configurable services for vrouter:
VROUTER_AGENT
VROUTER_AGENT_NODEMGR
How can I pass additional parameters to the Contrail Web UI services a with configuration file in JS format?
Define the exact variable in the environment. Available configuration settings can be found in the source code, see https://github.com/Juniper/contrail-container-builder/blob/master/containers/controller/webui/base/entrypoint.sh#L31-L199 .
# Sample config contrail_env: WEBUI_SSL_CIPHERS: "ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384"
How can I verify all pods of Contrail are up and running?
Use the following command to list all pods of Contrail.
kubectl get pods -n openstack -o wide | grep contrail-
How can I see the logs of each of the containers?
Contrail logs are stored under /var/log/contrail/ on each node. To check for the standard output (stdout) log for each container:
kubectl logs -f <contrail-pod-name> -n openstack
How can I enter into a pod?
Use the kubectl command.
kubectl exec -it <contrail-pod> -n openstack -- bash