Installing on Kolla Train

Change the nova user id on the Trilio Nodes

In Kolla, 'nova' user id on nova-compute docker container is set to '42436'. The 'nova' user id on the Trilio nodes need to be set the same. Do the following steps on all compute nodes:

  1. Download the shell script that will change the user id

  2. Assign executable permissions

  3. Execute the script

  4. Verify that 'nova' user and group id has changed to '42436'

curl -O https://raw.githubusercontent.com/trilioData/triliovault-cfg-scripts/master/common/nova_userid.sh 
chmod +x nova_userid.sh
./nova_userid.sh
id nova
# uid=42436(nova) gid=42436(nova) groups=42436(nova),990(libvirt),36(kvm)

Deploy Trilio Datamover API on all Openstack controller nodes

Trilio Datamover Api container should be deployed on all nodes where nova_api container is running. In standard deployment, we can call these nodes as OpenStack controller nodes.

Pull TrilioVaullt Datamover API container image

The very first step is to pull the container image from docker.io.

Login to docker using credentials: triliodocker/triliopassword

Login to docker and pull the Trilio Datamover API container.

Example command for train openstack on ubuntu platform with triliovault 4.0 GA release: docker pull docker.io/trilio/ubuntu-source-trilio-datamover-api:4.0.92-train

Create the Trilio Datamover API configuration

In this part of the process is the configuration file for the Trilio Datamover API created.

The following steps need to be done:

  1. Create config directory

  2. get default config file dmapi.conf

  3. edit dmapi.conf

  4. copy nova.conf to config directory

Create config directory for trilio-datamover-api service

Get the trilio-datamover-api default config file

Edit dmapi.conf

The dmapi.conf located in /etc/kolla/trilio-datamover-api/ needs to be edited to adjust to the Openstack environment.

Nearly all required values can be copied from the nova.conf located at: /etc/kolla/nova-api/

Follow comments inside the dmapi.conf to learn which parameters are the minimum needed.

An example dmapi.conf can be seen here:

Copy nova.conf of nova-api service to trilio-datamover-api directory

Create trilio-datamover-api log directory

Add trilio-datamover-api to haproxy.cfg

Run trilio-datamover-api container

Now the trilio-datamover-api container can be deployed and started.

Verify deployment of trilio-datamover-api container

To verify the deployment was successful check the container status using docker ps.

Deploy Trilio Datamover container on all Compute nodes

Trilio Datamover container should be deployed on all nodes where nova_compute container is running. In standard deployment, we can call these nodes as openstack compute nodes.

At this stage it is necessary to know if the deployment shall use NFS or S3 protocol for the backup target.

Pull Trilio Datamover container

The very first step is to pull the container image from docker.io.

Login to docker using credentials: triliodocker/triliopassword

Login to docker and pull the Trilio Datamover API container.

Example command for train openstack on ubuntu platform with Trilio 4.0 GA release: docker pull docker.io/trilio/ubuntu-source-trilio-datamover:4.0.92-train

Create the Trilio Datamover configuration

In this part of the process is the configuration file for the Trilio Datamover created.

The following steps need to be done:

  1. Create config directory

  2. copy nova.conf to config directory

  3. get default config file tvault-contego.conf

  4. edit tvault.conf

Create service config directory for trilio-datamover service

Copy nova.conf of nova-compute service to trilio-datamover config directory

Get the trilio-datamover default config file

Edit tvault-contego.conf

Edit /etc/kolla/trilio-datamover/tvault-contego.conf config file to provide NFS/S3 details as per backup storage selected.

In case of NFS backup target, only nfs share details need to provided. No other conf parameters need to edit, unless you know the details of it.

Create trilio-datamover log directory

If Ceph is used for Nova/Cinder Storage

If ceph is getting used for cinder/nova, the correct permissions for ceph.conf and keyrings files need to be assigned. The trilio_datamover container will be using ceph.conf and keyring files with the 'nova' user.

If nova/cinder backend is ceph, you need to add ceph user and keyring details to /etc/kolla/trilio-datamover/tvault-contego.conf file. Add the following sections to the tvault-contego.conf file. In the provided example is ceph's 'cinder' user configured to use for trilio read/write operations.

Run trilio-datamover container

Verify deployment of trilio-datamover container

To verify the deployment was successful check the container status using docker ps.

Installing Trilio Horizon plugin

Trilio Horizon plugin needs to be installed inside the OpenStack horizon container. Once installed, the Trilio dashboard will be visible in OpenStack Horizon.

The following steps need to be done:

  1. Download installation shell script

  2. Run the shell script

  3. Edit Horizon settings

  4. Restart the Horizon container

Download the installation shell script

To download the shell script directly into the Horizon container do:

Run the shell script and restart Horizon container

You have to run the script inside the Horizon container as root.

Run the shell script and restart horizon container. This will restart apache service, which may enforce a log out of the container.

Edit Horizon settings

The following line needs to be aded in 'local_settings' of Openstack's Horizon file to enable workloadmanager quota feature in the Horizon dashboard.

Restart the Horizon container

To enable the done changes restart the Horizon container

Known issues for Horizon plugin installation

If OpenStack is based on 'Centos' platform

This issue has not been observed in all CentOS based Kolla Train installations. Please verify before disabling grafana repository.

Grafana yum repository has an issue on the latest horizon containers of OpenStack (not Trilio). To confirm the issue, you can just run yum repolist, it will fail. Use the following command to disable the grafana repository.

If Openstack is based on Ubuntu platform

Trilio horizon install script will ask for horizon's openstack_dashboard directory path if it's not at the default location - /usr/shar/openstack-dashboard

For train ubuntu bionic, it's : /var/lib/kolla/venv/lib/python2.7/site-packages

If Trilio Horizon tabs are not accessible but Openstack Horizon works

If Trilio Horizon tabs are not accessible but OpenStack Horizon is working fine, make sure that endpoints for service 'TrilioVaultWLM' are created correctly. The root cause of this issue is typically, that SSL is enabled on all three endpoint types of 'TrilioVaultWLM' service.

If SSL is enable only on public 'keystone' service endpoints, then create 'TrilioVaultWLM' service endpoints in the same fashion. Endpoints for service 'TrilioVaultWLM' get created during Trilio configuration step. If these endpoints need to be edited reconfigure the Trilio.

Enabling Snapshout Mount

To make 'snapshot mount' functionality work, the cloud administrator needs to complete the following steps.

  1. Identify backup target mount point on Trilio VM

  2. install nfs-common on nova_compute and nova_libvirt containers

  3. Mount backup target nfs share on nova_compute and nova_libvirt containers

Identify backup target mount point in Trilio VM

The following command will provide the active mountpoint on the Trilio VM

This example gives the following information:

Backup target is NFS share: 192.168.1.33:/mnt/tvault Mountpoint is: /var/triliovault-mounts/MTkyLjE2OC4xLjMzOi9tbnQvdHZhdWx0

Install nfs-common on nova_compute and nova_libvirt containers

It is necessary to install nfs-common package on both nova_compute and nova_libvirt containers.

Mount backup target nfs share on nova_compute and nova_libvirt containers

Mount the backup target nfs share on 'nova_compute' and 'nova_libvirt' container at exactly same mount point as done on triliovault VM.

Create the mountpoint directory as necessary.

Troubleshoot installation

If any triliovault container is stuck in restarting state the following logs can be checked.

Possible issues for trilio-datamover container failure are for example NFS mount issues or S3 credentials might be wrong. If it's Amazon S3, then network connectivity between compute node and AWS s3 is needed. The docker logs will clearly tell the exact error.

If the above logs do not help OR If containers running well but, backups fail, following service logs will help:

If the Trilio Horizon tabs are not visible on Openstack, verify the following:

  • Make sure trilio horizon plugin is installed on OpenStack horizon container

  • Trilio configuration step needs to be completed to see the triliovault dashboard on OpenStack

  • Make sure correct openstack_dashboard directory got provided and the triliovault horizon plugin files got successfully copied there.

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