To integrate Hydra with Kratos and Oathkeeper in a self-hosted system, you'll need to configure these components to work together. Here's a high-level overview of how to approach this integration: 1. Set up Ory Kratos: First, you'll need to set up Ory Kratos for identity management. This involves creating configuration files and setting up the necessary directories. You can find detailed instructions in the [Ory Kratos documentation](https://www.ory.sh/docs/kratos/guides/zero-trust-iap-proxy-identity-access-proxy#running-ory-kratos-and-the-ory-oathkeeper-identity-and-access-proxy). 2. Configure Ory Oathkeeper: Next, set up Ory Oathkeeper as an identity and access proxy. This will involve creating configuration files for Oathkeeper, including access rules. The [Ory Oathkeeper documentation](https://www.ory.sh/docs/oathkeeper/guides/proxy-websockets#configure-ory-oathkeeper-and-ory-kratos) provides examples of how to set this up. 3. Install and configure Ory Hydra: Install Ory Hydra following the instructions in the [Ory Hydra documentation](https://www.ory.sh/docs/hydra/self-hosted/install). You'll need to set up Hydra's configuration, including database settings and endpoints. 4. Integrate the components: - Configure Oathkeeper to use Kratos for authentication. This typically involves setting up the

cookie_session

authenticator in Oathkeeper to check sessions with Kratos. - Set up Hydra to use Kratos for login and consent flows. This will require implementing custom login and consent endpoints that interact with Kratos for authentication and user management. - Configure Oathkeeper to protect Hydra's endpoints, ensuring that only authenticated and authorized requests can access Hydra's APIs. 5. Set up reverse proxy: Use a reverse proxy (like Nginx) to route requests to the appropriate services and to ensure that Hydra's admin API is not publicly accessible. It's important to note that the exact steps and configurations will depend on your specific use case and system architecture. The integration of these components can be complex and may require careful planning and testing. For more detailed information on deploying Ory Hydra in a production environment, you can refer to the [Ory Hydra deployment guide](https://www.ory.sh/docs/hydra/self-hosted/deploy-hydra-example#next-steps). Remember that while self-hosting offers flexibility, it also requires more setup and maintenance. If you're looking for a simpler solution, you might want to consider using [Ory Network](https://www.ory.sh/ory-network-or-self-hosting-explained-use-cases/), which provides these services in a managed environment.

Certainly! I can provide you with example configurations and a docker-compose file for integrating Ory Hydra, Kratos, and Oathkeeper in a self-hosted system. However, please note that these configurations should be adjusted to fit your specific needs and security requirements. Here's a sample docker-compose file that includes Ory Kratos, Hydra, and Oathkeeper:

yaml
version: "3.7"
services:
  oathkeeper:
    image: oryd/oathkeeper:<version-you-want>
    depends_on:
      - kratos
    ports:
      - 8080:4455
      - 4456:4456
    command:
      serve proxy -c "/etc/config/oathkeeper/oathkeeper.yml"
    environment:
      - LOG_LEVEL=debug
    restart: on-failure
    networks:
      - intranet
    volumes:
      - ./oathkeeper:/etc/config/oathkeeper

  postgres-kratos:
    image: postgres:12
    environment:
      - POSTGRES_USER=kratos
      - POSTGRES_PASSWORD=secret
      - POSTGRES_DB=kratos
    networks:
      - intranet

  kratos-migrate:
    image: oryd/kratos:<version-you-want>
    links:
      - postgres-kratos:postgres-kratos
    environment:
      - DSN=<postgres://kratos:secret@postgres-kratos:5432/kratos?sslmode=disable&max_conns=20&max_idle_conns=4>
    networks:
      - intranet
    volumes:
      - type: bind
        source: ./kratos
        target: /etc/config/kratos
    command: -c /etc/config/kratos/kratos.yml migrate sql -e --yes

  kratos:
    image: oryd/kratos:<version-you-want>
    links:
      - postgres-kratos:postgres-kratos
    environment:
      - DSN=<postgres://kratos:secret@postgres-kratos:5432/kratos?sslmode=disable&max_conns=20&max_idle_conns=4>
    ports:
      - '4433:4433'
      - '4434:4434'
    volumes:
      - type: bind
        source: ./kratos
        target: /etc/config/kratos
    networks:
      - intranet
    command: serve -c /etc/config/kratos/kratos.yml --dev --watch-courier

  hydra:
    image: oryd/hydra:<version-you-want>
    ports:
      - "4444:4444" # Public port
      - "4445:4445" # Admin port
      - "5555:5555" # Port for hydra token user
    command:
      serve all --dangerous-force-http
    environment:
      - DSN=<postgres://hydra:secret@postgres-hydra:5432/hydra?sslmode=disable&max_conns=20&max_idle_conns=4>
    volumes:
      - ./hydra:/etc/config/hydra
    networks:
      - intranet

  postgres-hydra:
    image: postgres:12
    environment:
      - POSTGRES_USER=hydra
      - POSTGRES_PASSWORD=secret
      - POSTGRES_DB=hydra
    networks:
      - intranet

networks:
  intranet:

For the Oathkeeper configuration (

oathkeeper.yml

), you can use: ```yaml log: level: debug format: json serve: proxy: cors: enabled: true allowed_origins: - http://127.0.0.1:8080 allowed_methods: - POST - GET - PUT - PATCH - DELETE allowed_headers: - Authorization - Content-Type exposed_headers: - Content-Type allow_credentials: true debug: true errors: fallback: - json

Certainly! I can provide you with example configurations and a docker-compose file for integrating Ory Hydra, Kratos, and Oathkeeper in a self-hosted system. However, please note that these configurations should be adjusted to fit your specific needs and security requirements. Here's a sample docker-compose file that includes Ory Kratos, Hydra, and Oathkeeper:

yaml version: "3.7" services:   oathkeeper:     image: oryd/oathkeeper:<version-you-want>     depends_on:       - kratos     ports:       - 8080:4455       - 4456:4456     command:       serve proxy -c "/etc/config/oathkeeper/oathkeeper.yml"     environment:       - LOG_LEVEL=debug     restart: on-failure     networks:       - intranet     volumes:       - ./oathkeeper:/etc/config/oathkeeper    postgres-kratos:     image: postgres:12     environment:       - POSTGRES_USER=kratos       - POSTGRES_PASSWORD=secret       - POSTGRES_DB=kratos     networks:       - intranet    kratos-migrate:     image: oryd/kratos:<version-you-want>     links:       - postgres-kratos:postgres-kratos     environment:       - DSN=<postgres://kratos:secret@postgres-kratos:5432/kratos?sslmode=disable&max_conns=20&max_idle_conns=4>     networks:       - intranet     volumes:       - type: bind         source: ./kratos         target: /etc/config/kratos     command: -c /etc/config/kratos/kratos.yml migrate sql -e --yes    kratos:     image: oryd/kratos:<version-you-want>     links:       - postgres-kratos:postgres-kratos     environment:       - DSN=<postgres://kratos:secret@postgres-kratos:5432/kratos?sslmode=disable&max_conns=20&max_idle_conns=4>     ports:       - '4433:4433'       - '4434:4434'     volumes:       - type: bind         source: ./kratos         target: /etc/config/kratos     networks:       - intranet     command: serve -c /etc/config/kratos/kratos.yml --dev --watch-courier    hydra:     image: oryd/hydra:<version-you-want>     ports:       - "4444:4444" # Public port       - "4445:4445" # Admin port       - "5555:5555" # Port for hydra token user     command:       serve all --dangerous-force-http     environment:       - DSN=<postgres://hydra:secret@postgres-hydra:5432/hydra?sslmode=disable&max_conns=20&max_idle_conns=4>     volumes:       - ./hydra:/etc/config/hydra     networks:       - intranet    postgres-hydra:     image: postgres:12     environment:       - POSTGRES_USER=hydra       - POSTGRES_PASSWORD=secret       - POSTGRES_DB=hydra     networks:       - intranet  networks:   intranet:

For the Oathkeeper configuration (

oathkeeper.yml

), you can use:

yaml log:   level: debug   format: json  serve:   proxy:     cors:       enabled: true       allowed_origins:         - <http://127.0.0.1:8080>       allowed_methods:         - POST         - GET         - PUT         - PATCH         - DELETE       allowed_headers:         - Authorization         - Content-Type       exposed_headers:         - Content-Type       allow_credentials: true       debug: true  errors:   fallback:     - json    handlers:     redirect:       enabled: true       config:         to: <http://127.0.0.1:4455/login>         when:           - error:               - unauthorized               - forbidden             request:               header:                 accept:                   - text/html     json:       enabled: true       config:         verbose: true  access_rules:   matching_strategy: glob   repositories:     - file:///etc/config/oathkeeper/access-rules.yml  authenticators:   cookie_session:     enabled: true     config:       check_session_url: <http://kratos:4433/sessions/whoami>       preserve_path: true       extra_from: "@this"       subject_from: "identity.id"       only:         - ory_kratos_session  authorizers:   allow:     enabled: true  mutators:   noop:     enabled: true

For Hydra configuration (

hydra.yml

):

yaml dsn: <postgres://hydra:secret@postgres-hydra:5432/hydra?sslmode=disable&max_conns=20&max_idle_conns=4> urls:   self:     issuer: <https://localhost:4444>   consent: <http://localhost:3000/consent>   login: <http://localhost:3000/login>   logout: <http://localhost:3000/logout>

For Kratos configuration (

kratos.yml

), you can start with:

yaml dsn: <postgres://kratos:secret@postgres-kratos:5432/kratos?sslmode=disable&max_conns=20&max_idle_conns=4> serve:   public:     base_url: <http://127.0.0.1:4433/>     cors:       enabled: true   admin:     base_url: <http://kratos:4434/>  selfservice:   default_browser_return_url: <http://127.0.0.1:4455/>   allowed_return_urls:     - <http://127.0.0.1:4455>    methods:     password:       enabled: true    flows:     login:       ui_url: <http://127.0.0.1:4455/login>     registration:       ui_url: <http://127.0.0.1:4455/registration>     settings:       ui_url: <http://127.0.0.1:4455/settings>     recovery:       ui_url: <http://127.0.0.1:4455/recovery>     verification:       ui_url: <http://127.0.0.1:4455/verification>  log:   level: debug   format: text

These configurations are based on the examples provided in the [Ory documentation](https://www.ory.sh/docs/oathkeeper/guides/proxy-websockets#configure-ory-oathkeeper-and-ory-kratos) and [Ory Hydra deployment guide](https://www.ory.sh/docs/hydra/self-hosted/deploy-hydra-example#install-ory-hydra). However, please note that these are basic configurations and should be adjusted for your specific use case and security requirements. Always ensure to use proper security measures, especially in production environments. Remember to replace

<version-you-want>

with the specific versions of Ory components you wish to use. Also, you may need to implement custom login, consent, and logout handlers to integrate Hydra with Kratos fully.