Important
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Installation Requirements for Ansible Playbooks for Confluent Platform¶
General Requirements¶
- Confluent Platform 5.3 or later
- Ansible 2.7 or later (on the control node)
- Confluent Platform Ansible playbooks
- SSH access between Ansible hosts and all other hosts
sudoaccess for SSH user to all Confluent Platform hosts
Supported Operating Systems¶
- RHEL 7 or later
- Ubuntu 16.04 or later
- Debian 8 or later
Hardware Requirements¶
Refer to the Confluent Platform component on-premises system requirements.
Ports¶
Ansible configures Confluent Platform components to use the following ports.
Make sure the ports are open.
| Component | Port |
|---|---|
| Kafka brokers: inter-broker communication | 9091 |
| Kafka brokers: client communication | 9092 |
| Confluent Control Center | 9021 |
| Connect REST API | 8083 |
| ksqlDB REST API | 8088 |
| REST Proxy | 8082 |
| Schema Registry REST API | 8081 |
| ZooKeeper | 2181, 2888, 3888 |
| Metadata Service (MDS) if using RBAC | 8090 |
Users¶
Each Confluent Platform component runs under its own user set up during installation. The
usernames are prefixed with cp- followed by the component name. For example,
cp-kafka and cp-schema-registry. The one exception is that ZooKeeper runs as
the cp-kafka user.
Time synchronization¶
Clock synchronization on each Kafka broker is required to ensure the full system functions correctly. See Time synchronization requirement for details.