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4.2. TCP Endpoint Example

This section provides an example Endpoints entry in a $cartridge_name/metadata/manifest.yml file, and demonstrates how OpenShift Enterprise uses this entry to create environment variables, public proxy port mappings, and httpd routes.

Example 4.3. Endpoints Entry

Name: CustomCart
Cartridge-Short-Name: CUSTOMCART

...

Endpoints:
  - Private-IP-Name:   HTTP_IP
    Private-Port-Name: WEB_PORT
    Private-Port:      8080
    Public-Port-Name:  WEB_PROXY_PORT
    Protocols:         [ws]
    Mappings:
      - Frontend:      '/web_front'
        Backend:       '/web_back'
      - Frontend:      '/socket_front'
        Backend:       '/socket_back'
        Options:       { "websocket": true }

  - Private-IP-Name:   HTTP_IP
    Private-Port-Name: ADMIN_PORT
    Private-Port:      9000
    Public-Port-Name:  ADMIN_PROXY_PORT
    Protocols:         [http]
    Mappings:
      - Frontend:      '/admin_front'
      - Backend:       '/admin_back'

  - Private-IP-Name:   INTERNAL_SERVICE_IP
    Private-Port-Name: 5544
    Public-Port-Name:  INTERNAL_SERVICE_PORT

Name: CustomCart
Cartridge-Short-Name: CUSTOMCART

...

Endpoints:
  - Private-IP-Name:   HTTP_IP
    Private-Port-Name: WEB_PORT
    Private-Port:      8080
    Public-Port-Name:  WEB_PROXY_PORT
    Protocols:         [ws]
    Mappings:
      - Frontend:      '/web_front'
        Backend:       '/web_back'
      - Frontend:      '/socket_front'
        Backend:       '/socket_back'
        Options:       { "websocket": true }

  - Private-IP-Name:   HTTP_IP
    Private-Port-Name: ADMIN_PORT
    Private-Port:      9000
    Public-Port-Name:  ADMIN_PROXY_PORT
    Protocols:         [http]
    Mappings:
      - Frontend:      '/admin_front'
      - Backend:       '/admin_back'

  - Private-IP-Name:   INTERNAL_SERVICE_IP
    Private-Port-Name: 5544
    Public-Port-Name:  INTERNAL_SERVICE_PORT

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Environment Variables

Several environment variables are created for the cartridge using the information in the Endpoints entry.

Example 4.4. Environment Variables

Internal IP/port allocations
Public proxy port mappings

# Internal IP/port allocations
OPENSHIFT_CUSTOMCART_HTTP_IP=<assigned internal IP 1>
OPENSHIFT_CUSTOMCART_WEB_PORT=8080
OPENSHIFT_CUSTOMCART_ADMIN_PORT=9000
OPENSHIFT_CUSTOMCART_INTERNAL_SERVICE_IP=<assigned internal IP 2>
OPENSHIFT_CUSTOMCART_INTERNAL_SERVICE_PORT=5544

# Public proxy port mappings
OPENSHIFT_CUSTOMCART_WEB_PROXY_PORT=<assigned public port 1>
OPENSHIFT_CUSTOMCART_ADMIN_PROXY_PORT=<assigned public port 2>

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Proxy Port Mapping

Proxy port mapping is assigned using the information in the Endpoints entry.

Example 4.5. Proxy Port Mapping

<assigned external IP>:<assigned public port 1> => OPENSHIFT_CUSTOMCART_HTTP_IP:OPENSHIFT_CUSTOMCART_WEB_PORT
<assigned external IP>:<assigned public port 2> => OPENSHIFT_CUSTOMCART_HTTP_IP:OPENSHIFT_CUSTOMCART_ADMIN_PORT

<assigned external IP>:<assigned public port 1> => OPENSHIFT_CUSTOMCART_HTTP_IP:OPENSHIFT_CUSTOMCART_WEB_PORT
<assigned external IP>:<assigned public port 2> => OPENSHIFT_CUSTOMCART_HTTP_IP:OPENSHIFT_CUSTOMCART_ADMIN_PORT

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httpd Routing

The httpd routes are assigned using the Endpoints entry.

Example 4.6. httpd Routing

http://<app dns>/web_front    => http://OPENSHIFT_CUSTOMCART_HTTP_IP:8080/web_back
http://<app dns>/socket_front => http://OPENSHIFT_CUSTOMCART_HTTP_IP:8080/socket_back
http://<app dns>/admin_front  => http://OPENSHIFT_CUSTOMCART_HTTP_IP:9000/admin_back

http://<app dns>/web_front    => http://OPENSHIFT_CUSTOMCART_HTTP_IP:8080/web_back
http://<app dns>/socket_front => http://OPENSHIFT_CUSTOMCART_HTTP_IP:8080/socket_back
http://<app dns>/admin_front  => http://OPENSHIFT_CUSTOMCART_HTTP_IP:9000/admin_back

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4.2. TCP Endpoint Example

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