Keycloak 21 version update import issue

Configuring the server
1

I am currently using keycloak testcontainer and docker instance with version 20.0.3,

both container and docker imports two realms which includes specific settings need for my app and I am testing my application by using this data.

The momnet I change the version to 21.0.1 there is no possibilty to import and external realm.

This happens both for docker container and keycloak test container

The error I encounter is below:

11:33:41.335 [main] DEBUG org.testcontainers.utility.PrefixingImageNameSubstitutor - No prefix is configured
11:33:41.335 [main] DEBUG org.testcontainers.utility.ImageNameSubstitutor - Did not find a substitute image for quay.io/keycloak/keycloak:21.0.0 (using image substitutor: DefaultImageNameSubstitutor (composite of ‘ConfigurationFileImageNameSubstitutor’ and ‘PrefixingImageNameSubstitutor’))

The test I am running is

@Test
public void shouldImportMultipleRealms() {
    try (KeycloakContainer keycloak = new KeycloakContainer().
        withRealmImportFiles(TEST_REALM_JSON, "/realm-other-dev.json")) {
        keycloak.start();

        String accountService = given().when().get(keycloak.getAuthServerUrl() + "realms/master")
            .then().statusCode(200).body("realm", equalTo("master"))
            .extract().path("account-service");

        given().when().get(accountService).then().statusCode(200);

        accountService = given().when().get(keycloak.getAuthServerUrl() + "realms/other")
            .then().statusCode(200).body("realm", equalTo("users"))
            .extract().path("account-service");

        given().when().get(accountService).then().statusCode(200);
    }
}

Also my docker configuration is as below:

keycloak


  postgres-kc:
    image: postgres:latest
    container_name: keycloak_postgres
    volumes:
      - postgres_data:/var/lib/postgresql/data
    environment:
      POSTGRES_DB: keycloak
      POSTGRES_USER: keycloak
      POSTGRES_PASSWORD: password
    ports:
      - '5431:5431'

  keycloak:
    container_name: keycloak
    image: quay.io/keycloak/keycloak:20.0.0
    volumes:
      - ./imports:/opt/keycloak/data/import
    entrypoint: /opt/keycloak/bin/kc.sh start-dev --import-realm -Dkeycloak.migration.strategy=OVERWRITE_EXISTING
    # It is only possible to import non-existing realms; since in our case we can only import "others" realm
    environment:
      DB_VENDOR: POSTGRES
      DB_ADDR: postgres-kc
      DB_DATABASE: keycloak
      DB_USER: keycloak
      DB_PASSWORD: password
      KEYCLOAK_USER: admin
      KEYCLOAK_PASSWORD: admin-secret
    # KEYCLOAK_ADMIN & KEYCLOAK_ADMIN_PASSWORD password need to be defined for some releases, otherwise it causes error as
    # "Open http://localhost:8080/ or set the environment variables KEYCLOAK_ADMIN and KEYCLOAK_ADMIN_PASSWORD before
    # starting the server."
      KEYCLOAK_ADMIN: admin
      KEYCLOAK_ADMIN_PASSWORD: admin
    ports:
      - '8082:8080'
    depends_on:
      - postgres-kc
3

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