Frequently Asked Questions 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?

  Note

  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.

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  # 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.

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  # 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?

  Note

  This example is not valid for WebUI service because its configuration file is in JS format.

  For example, to pass the variable some_key to be in the section SOME_SECTION of Contrail's service SOME_SERVICE, add it to the contrail_env. The service name, section name, and key name are separated by two underscore symbols.

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  # Sample config
  contrail_env:
    SOME_SERVICE__SOME_SECTION__some_key: "value"

  The following example configures the minimum_diskGB parameter for the node manager of the analytics database.

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  # 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.

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  # 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 .

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  # 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.

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  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:

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  kubectl logs -f <contrail-pod-name> -n openstack  

• How can I enter into a pod?

  Use the kubectl command.

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  kubectl exec -it <contrail-pod> -n openstack -- bash