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Connecting to Hazelcast Platform with Hazelcast CLC

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To use the Hazelcast CLC with Hazelcast Platform, you need to configure it with the correct connection credentials.

The configuration examples in this topic use a configuration file.

Before you Begin

You need the following:

  • Hazelcast CLC

  • A Hazelcast Platform cluster

  • Your cluster’s connection credentials:

    • Cluster name: To find your cluster name, see cluster-name configuration.

    • IP addresses: If you’re not connecting to a local member at localhost:5701 (default), you’ll need the IP addresses of the members that you want to connect to.

    • Username and password: If your cluster is configured with simple authentication, find the username and password in your member configuration file. See Simple Authentication.

    • Mutual TLS: If your cluster is configured with mutual TLS authentication, you’ll need your client TLS keys and certificates. See Mutual Authentication.

Hazelcast CLC supports the following TLS connections for Hazelcast Platform:

Connecting to Clusters with One-Way Authentication

  1. Add the following to your configuration file:

    cluster:
  name: "<CLUSTER NAME>"
  address: "<MEMBER IP ADDRESS>"
  user: "<OPTIONAL USERNAME>"
  password: "<OPTIONAL PASSWORD>"
ssl:
  enabled: true
  server: "<HOSTNAME IN CLUSTER CERTIFICATE>"

  2. Start an interactive shell session.

    clc

The Hazelcast CLC starts in interactive mode at a command prompt.

The Hazelcast CLC connects to the cluster on demand, that is when you issue a command that requires the connection, such as running a SQL query.

Connecting to Clusters with Mutual TLS Authentication

  1. Add the following to your configuration file:

    cluster:
  name: "<CLUSTER NAME>"
  address: "<MEMBER IP ADDRESS>"
credentials:
  user: "<OPTIONAL USERNAME>"
  password: "<OPTIONAL PASSWORD>"
ssl:
  enabled: true
  server: "<HOSTNAME IN CLUSTER CERTIFICATE>"
  ca-path: "/<PATH>/ca.pem"
  cert-path: "/<PATH>/cert.pem"
  key-path: "/<PATH>/key.pem"
  key-password: "<PASSWORD FOR THE KEY>"

  2. Start an interactive shell session.

    clc

Hazelcast CLC starts in interactive mode at a command prompt.

Hazelcast CLC connects to the cluster on demand, that is when you issue a command that requires the connection, such as running a SQL query.

Connecting to Clusters with Self-Signed TLS Certificates

If your cluster members use self-signed TLS certificates, you can use the skip-verify setting to skip TLS verification and avoid connection errors.

Skipping TLS verification makes you vulnerable to man-in-the-middle attacks because any device can act as the intended cluster.

  1. Add the following to your configuration file:

    cluster:
  name: "<CLUSTER NAME>"
  address: "<MEMBER IP ADDRESS>"
credentials:
  user: "<OPTIONAL USERNAME>"
  password: "<OPTIONAL PASSWORD>"
ssl:
  enabled: true
  skip-verify: true

  2. Start an interactive shell session.

    clc

CLC will start in the interactive mode, and you should see a command prompt.

Hazelcast CLC connects to the cluster on demand, that is when you issue a command that requires the connection, such as running a SQL query.

Connecting to Clusters with TLS Disabled

  1. Add the following to your configuration file:

    cluster:
  name: "<CLUSTER NAME>"
  address: "<MEMBER IP ADDRESS>"
credentials:
  user: "<OPTIONAL USERNAME>"
  password: "<OPTIONAL PASSWORD>"

  2. Start an interactive shell session.

    clc

The Hazelcast CLC starts in the interactive mode at a command prompt.

Hazelcast CLC connects to the cluster on demand, that is when you issue a command that requires the connection, such as running a SQL query.

Next Steps

See the command reference to learn what you can do with Hazelcast CLC.

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