Ansible Variables

Overview

Ansible is the configuration management system used in Sunbird. The infrastructure setup, deployment of services and other configurations is handled primarily through ansible.

Updating the Private Repository with Hosts and Variables

Use the following git commands sequentially to clone and update your private GitHub repository -

git clone https://github.com/project-sunbird/sunbird-devops
cd sunbird-devops
git checkout tags/release-4.10.0 -b release-4.10.0

• Copy the directory sunbird-devops/private_repo/ansible to your private repo

• Update the files common.yml, hosts, and secrets.yml under Core, KnowledgePlatform and DataPipeline directories. After updating, push them to your private repo branch

• Your private repo structure starting from the root path should be exactly as shown below

  ansible
└── inventory
    └── dev
        ├── Core
        │   ├── common.yml
        │   ├── hosts
        │   └── secrets.yml
        ├── DataPipeline
        │   ├── common.yml
        │   ├── hosts
        │   └── secrets.yml
        └── KnowledgePlatform
            ├── common.yml
            ├── hosts
            └── secrets.yml

Note:

• The ansible inventory setup is a must before we can start to run jobs from the Provision, ArtifactUpload and Deploy directory in Jenkins. The Build directory on Jenkins does not depend on the ansible variables

• It is highly recommended that you complete the ansible inventory updates before proceeding further

List of Servers with their Ansible Group Names

Module	Servers	Service	Ansible Group Names
Build and Deploy	Server-1	Jenkins Master
Databases	Server-2	Cassandra	cassandra-1, lp-cassandra, dp-cassandra, core-cassandra, report-cassandra, cassandra-node-1, cassandra
Postgres	postgresql-master-1, postgresql-master, postgres
Application Elasticsearch	es-1, composite-search-cluster, core-es-1, core-es, es-backup, es
Neo4j	learning-neo4j-node1, learning-neo4j-cluster
Mongo	mongo_master, mongo
Knowledge Platform	Server-3	Learning	learning1, learning, learningall
Redis	redis1, redis, redis-ps, redisall, lp-redis, lp-redis-ps, dp-redis, lms-redis, redis-exporter-targets
Zookeeper	processing-cluster-zookeepers, ingestion-cluster-zookeeper, raw-zookeeper, zookeeper
Kafka	processing-cluster-kafka, ingestion-cluster-kafka, kafka-1, kafka
Data Pipeline	Server-4	Spark	spark
Kafka Indexer (Logstash)	kafka-indexer
InfluxDB	influxdb
Keycloak	keycloak-1, keycloak
Yarn	Server-5	Yarn Master and Slave	yarn-master, yarn-slave, yarn
Other Services	Server-6	Druid	druid-postgres, raw-coordinator, raw-overlord, raw-broker, raw-historical, raw-middlemanager, raw-graphite, rollup-coordinator, dp-druid-broker, broker, coordinator, druid-raw
Logs Elasticsearch	log-es-1, log-es-backup, log-es

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