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Ambar

Ambar is a data streaming service using event sourcing. For more on Ambar see ambar.cloud.

Enable Ambar via the property ambar.enabled.

Related properties

Property Usage Default
ambar.enabled Whether a Docker Ambar container should be started. false
ambar.image.tag The image tag of the Ambar Docker container to use. v1.8
ambar.config.file.path The file path for the Ambar config. src/test/resources/ambar-config.yaml
ambar.container.logging.enabled Whether to output the Ambar Docker logs to the console. false

As of v1.8 of Ambar, the database schema for the event store must be loaded when the Postgres instance is started. Add a schema.sql file to src/test/resources/ with the following contents:

CREATE TABLE public.event_store (
    id SERIAL PRIMARY KEY,
    event_id TEXT NOT NULL,
    event_name TEXT NOT NULL,
    aggregate_id TEXT NOT NULL,
    aggregate_version BIGINT NOT NULL,
    json_payload TEXT NOT NULL,
    json_metadata TEXT NOT NULL,
    recorded_on TEXT NOT NULL,
    causation_id TEXT NOT NULL,
    correlation_id TEXT NOT NULL
);

Add system property postgres.schema.file.path with value schema.sql to the component test run. e.g. update the pom.xml with:

<postgres.schema.file.path>schema.sql</postgres.schema.file.path>

Also add the ambar-config.yaml that defines the config for the Ambar container to src/test/resources/. See the Ambar documentation for more on this.