Contrail Cloud Overview
Juniper Networks® Contrail® Cloud is an integrated Telco cloud platform built to run high-performance Network Functions Virtualization with always-on reliability, allowing service providers to deliver innovative services with greater agility. Contrail Cloud features Red Hat® OpenStack and Red Hat Ceph combined with Juniper Networks Contrail Networking™, thereby bridging dynamic cloud orchestration with highly scalable connectivity. Contrail Cloud leverages AppFormix, which has a built-in automation capability powered by machine learning, to monitor the cloud infrastructure and VNFs in the most optimal manner, to remediate any potential failures to ensure adherence to service-level agreements (SLAs).
The following sections define key components of Contrail Cloud and your Contrail Cloud deployment. This will give you a basic understanding of the structure and interrelations of the different Contrail Cloud components, and help you understand what happens during the deployment process. For a detailed understanding of Contrail Cloud beyond the scope of the basic deployment instructions, see Contrail Cloud Reference Architecture Guide.
Contrail Cloud Node Types
Understanding the different node types that are used in Contrail Cloud will help you configure the YAML files for deployment.
Contrail Analytics Database
Contrail TSN (optional)
Contrail Cloud Directory Structure
Contrail Cloud is installed on the jump host and located in
/var/lib/contrail_cloud/. The following is the Contrail
Cloud file directory structure:
appformixdirectory holds your AppFormix license and any user-defined AppFormix plugins.
authdirectory is for the overcloudrc (overcloud) and stackrc (undercloud) credential files.
certsdirectory holds your SSL certificates for Contrail and OpenStack
configdirectory has all the configuration files for deploying Contrail Cloud. The configuration files are in the YAML file format.
docsdirectory contains a copy of the Contrail Cloud Deployment Guide. This guide includes the essential steps for deploying Contrail Cloud.
facts.ddirectory contains information about the Contrail Cloud environment and holds the state across Ansible runs to allow the playbooks to remember important deployment information.
introspectiondirectory is for files containing detailed information about the hardware that is used and how the hardware is configured. This information is useful when planning your overall Contrail Cloud deployment. This information can also be used to verify that NICs are assigned properly, along with VLANs and bonds.
samplesdirectory contains sample snippets of the various YAML configuration files which can be referenced for deployment. Each snippet details a specific use case configuration. This directory contains information about the various knobs and configuration options available, and is separated by features and scaling use cases.
scriptsdirectory contains various required and optional scripts that are used with Contrail Cloud, including pre-deployment verification scripts, deployment scripts, introspection and post-deployment verification tools.
tmpdirectory holds the temporary files that are required by Contrail Cloud.
This section briefly defines each of the configuration files
that are used in your Contrail Cloud deployment. For specific configuration
/var/lib/contrail_cloud/samples on the jump host. All configuration files are in the YAML file format
using the Jinja2 template. All deployment configuration files are
located in the
/var/lib/contrail_cloud/config directory. The following configuration files are used in your Contrail
Contrail Cloud also provides default values for all Contrail
Cloud playbooks. The default values can be found in
/var/lib/contrail_cloud/ansible/playbooks/default.yml. Advanced users may review this file to look for values they wish
to override in their
Never modify the
default.yml file directly. Always apply the values from the
default.yml into your