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Kafka Service Fleet Manager is a service that exposes a Rest API to manage Kafka instances.

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Kafka Service Fleet Manager

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A service for provisioning and managing fleets of Kafka instances.

For more information on how the service works, see the implementation documentation.

Prerequisites

There are some additional prerequisites required for running kas-fleet-manager due to its interaction with external services which are described below.

Running Fleet Manager in your local environment

  1. Follow the populating configuration guide to prepare Fleet Manager with its needed configurations

  2. Compile the Fleet Manager binary

    make binary
    
  3. Create and setup the Fleet Manager database

    • Create and setup the database container and the initial database schemas
    make db/setup && make db/migrate
    
    • Optional - Verify tables and records are created
    # Login to the database to get a SQL prompt
    make db/login
    
    # List all the tables
    serviceapitests# \dt
    
    # Verify that the `migrations` table contains multiple records
    serviceapitests# select * from migrations;
    
  4. Start the Fleet Manager service in your local environment

    ./kas-fleet-manager serve
    

    This will start the Fleet Manager server and it will expose its API on port 8000 by default

    NOTE: The service has numerous feature flags which can be used to enable/disable certain features of the service. Please see the feature flag documentation for more information.

  5. Verify the local service is working

    curl -H "Authorization: Bearer $(ocm token)" http://localhost:8000/api/kafkas_mgmt/v1/kafkas
    {"kind":"KafkaRequestList","page":1,"size":0,"total":0,"items":[]}
    

    NOTE: Make sure you are logged in to OCM through the CLI before running this command. Details on that can be found here

Configuring a Data Plane OSD cluster for Fleet Manager

Kas-fleet-manager can be started without a dataplane OSD cluster, however, no Kafkas will be placed or provisioned.

To manually setup a data plane OSD cluster, please follow the Using an existing OSD cluster with manual scaling enabled option in the data-plane-osd-cluster-options.md guide.

Running Fleet Manager on an OpenShift cluster

Follow this guide on how to deploy the KAS Fleet Manager service to a OpenShift cluster.

Using the Fleet Manager service

Interacting with Fleet Manager

See the Interacting with Fleet Manager document

Viewing the API docs

# Start Swagger UI container
make run/docs

# Launch Swagger UI and Verify from a browser: http://localhost:8082

# Remove Swagger UI conainer
make run/docs/teardown

Running additional CLI commands

In addition to starting and running a Fleet Manager server, the Fleet Manager binary provides additional commands to interact with the service (i.e. running data migrations)

To use these commands, run make binary to create the ./fleet-manager binary.

Then run ./fleet-manager -h for information on the additional available commands.

Fleet Manager Environments

The service can be run in a number of different environments. Environments are essentially bespoke sets of configuration that the service uses to make it function differently. Environments can be set using the OCM_ENV environment variable. Below are the list of known environments and their details.

  • development - The staging OCM environment is used. Sentry is disabled. Debugging utilities are enabled. This should be used in local development. This is the default environment used when directly running the Fleet Manager binary and the OCM_ENV variable has not been set.
  • testing - The OCM API is mocked/stubbed out, meaning network calls to OCM will fail. The auth service is mocked. This should be used for unit testing.
  • integration - Identical to testing but using an emulated OCM API server to respond to OCM API calls, instead of a basic mock. This can be used for integration testing to mock OCM behaviour.
  • production - Debugging utilities are disabled, Sentry is enabled. environment can be ignored in most development and is only used when the service is deployed.

The OCM_ENV environment variable should be set before running any Fleet Manager binary command or Makefile target.

Running the Tests

See the testing document.

Contributing

See the contributing guide for general guidelines.

Connector Service

The https://github.com/bf2fc6cc711aee1a0c2a/cos-fleet-manager is used to build the cos-fleet-manager binary which is a fleet manager for connectors similar to how kas-fleet-manager is fleet manager for Kafka instances. The cos-fleet-manager just imports most of the code from the kas-fleet-manager enabling only connector APIs that are in this repo's internal/connector package.

Connector integration tests require most of the security and access configuration listed in the populating configuration guide document. Connector service uses AWS secrets manager as a connector specific vault service for storing connector secret properties such as usernames, passwords, etc.

Before running integration tests, the required AWS secrets files in the secrets/vault directory MUST be configured in the files:

secrets/vault/aws_access_key_id
secrets/vault/aws_secret_access_key

Additional documentation

Additional documentation can be found in the docs directory.

Some relevant documents are:

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