Prerequisites

The Corda deployment process has the following prerequisites:

•  Kubernetes A powerful tool for managing containerized applications at scale, making it easier for teams to deploy and manage their applications with high reliability and efficiency. for container orchestration
•  Kafka The means by which Corda workers communicate, acting as a central message bus between the worker processes. for messaging
• PostgreSQL for persistence

See the Infrastructure Topology subsection for example topologies on the Amazon Web Services and Microsoft Azure cloud platforms, including initial sizing guidance.

Container Orchestration

Corda uses Kubernetes to manage the scheduling and availability of Corda workers. Corda is tested on the following:

Software	Version
Kubernetes	1.25
Helm	3.10
Amazon Elastic Kubernetes Service (EKS). Currently only supported on EC2, not Fargate.	1.25
Microsoft Azure Kubernetes Service (AKS)	1.25
RedHat OpenShift Container Platform (OCP)	4.12.12

The Corda deployment process requires a Kubernetes context with credentials that provide access to the namespace in which Corda is to be installed. It needs permission to create deployments, secrets, and, if automatic bootstrapping is used, jobs. Corda does not create any persistent volumes and does not install any cluster-scoped resources.

Messaging

Corda uses Kafka for communication between the Corda workers. Corda is tested with the following:

The Corda deployment process requires the following:

• Kafka bootstrap server addresses and their ports.
• Automatic bootstrapping: user name and password for a user that has permission to:
  • create topics with the given topic prefix.
  • define ACLs for each topic. You should use a separate user for each type of Corda worker although, for development and test, a single user can be used.
• If the Kafka brokers are using TLS Transport Layer Security. A protocol that establishes an encrypted session between two computers on the Internet. and the certificates used are not trusted by the default JVM trust store In the context of X.500 certificates and digital security, this is a repository or database containing a collection of trusted digital certificates, often from Certificate Authorities (CAs). , a trust store containing the root certificate is required.

Database

Corda uses PostgreSQL for the persistence of system and application data, including configuration and state information. Corda is tested with the following:

The Corda deployment process requires the following:

• PostgreSQL hostnames and ports.
• Automatic bootstrapping: user name and password for a user in each database that has the ability to:
  • create the configuration, crypto, RBAC, and state manager schemas.
  • create crypto, RBAC, and state manager users.
  • grant the users access to their respective schemas.
• Manual bootstrapping: additional virtual node The combination of the context of a user and the ephemeral compute instances created to progress a transaction on that identity's behalf. user with the ability to create schemas dynamically at runtime.

Security Vault

Corda Enterprise supports integration with HashiCorp Vault as an external secret management system. This is the recommended deployment configuration. For more information, see Configuration Secrets. Corda is tested with the following: