Docker Images Link Failing(KIE WorkBench & KIE Server)

[Avinash Konjeti]

Hi Team,

    I used drools-workbench-showcase , kie-server-showcase latest docker images and followed https://hub.docker.com/r/jboss/drools-workbench-showcase/ and https://hub.docker.com/r/jboss/kie-server-showcase/ urls and setup the drools and it is working fine as excepted.I am able to see KIE Server in workbench execution servers and able to perform deployments using workbench.

Now , I want to run the same docker images as services rather than containers in docker swarm mode. Even though i am running them(both docker services) in the same network i am unable to see the kie server inside workbench under execution servers menu.

Can you please help/explain me the internal implementation of kie workbench on identifying the kie  server and displaying it under execution servers menu .Also is there a way I can manually define/input the kie server url if system is not finding by itself?

FYI : Docker link command is not available in docker services and it is going to be deprecated soon for normal containers as well .So I used common network to create a bridge between both the services but it is not working for me as expected. Please help me on setup of the above images as docker services.

Also is there any common image with both workbench and server available in docker hub?

Thanks in advance,
Avinash Konjeti

[Michael B]

Hi Avinash,

The Docker container for drools-workbench-showcase and kie-server-showcase are tested in "normal" Docker environment.
We don't have the experience with "docker swarm" https://docs.docker.com/engine/swarm/swarm-tutorial/
As you wrote, when using the docker images following the docs it works fine - you only get the problem when you use docker swarm.

As we don't have experience with "docker swarm" we can't help/explain you right now.
We will take your post as challenge to learn about "docker swarm".

Thank you

Michael B

[Michael Anstis]

Conversely, Avinash may be able to identify configuration changes for Docker Swarm and provide a Pull Request for the benefit of the Community :-)

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[José A. Esquivel]

I just attempted this once but it is running just as well as in normal mode.

NOTES:

I had to run the following in order to create the network.

docker network create --driver=overlay --attachable core-infra

I read this and for just docker-compose they suggested adding network_mode: default.

But in the end I did not need that. I believe the key part here is the alias drools-wb:kie-wb that is created with link. You could try removing the link and setting aliases for the drools-wb

version: '3.1'

services:

  drools-wb:

    image: jboss/drools-workbench-showcase

    restart: always

    ports:

      - "8080:8080"

      - "8001:8001"

    volumes:

      - /code/Tecsou.Count/src/Tecsou.Count.Workbench:/opt/jboss/wildfly/bin/.niogit:rw

    #network_mode: default

    networks:

      - core-infra

  kie-server:

    image: jboss/kie-server-showcase

    restart: always

    links:

      - drools-wb:kie-wb

    depends_on:

      - drools-wb

    #network_mode: default

    networks:

      - core-infra

networks:

  core-infra:

    external: true

[José A. Esquivel]

My bad, wrong docker-compose. This was the one the made it work with docker swarm for me:

version: '3.1'

services:

  drools-wb:

    image: jboss/drools-workbench-showcase

    ports:

      - "8080:8080"

      - "8001:8001"

    volumes:

      - /code/Tecsou.Count/src/Tecsou.Count.Workbench/.git:/opt/jboss/wildfly/bin/.niogit:rw

    networks:

      core-infra:

        aliases:

          - kie_wb

  kie-server:

    image: jboss/kie-server-showcase

    ports:

      - "8180:8080"

    depends_on:

      - drools-wb

    environment:

      # KIE Workbench environment variables

      # Neccessary to connect the KIE server to the KIE workbench

      - KIE_WB_PORT_8080_TCP=tcp://kie_wb:8080

      - KIE_WB_ENV_KIE_CONTEXT_PATH=drools-wb

      - KIE_WB_PORT_8080_TCP_ADDR=kie_wb

    networks:

      - core-infra

networks:

  core-infra:

    external: true

[José A. Esquivel]

Source