Access services from docker container

[jehof]

I am trying to connect to an service (rabbitmq) from a container that I manually run in my bitbucket pipeline. But with no luck. Is this even possible?

Problem is that I have no glue what address/ip/name I could provide to my container for the service. The rabbitmq service starts fine and would be accessible under localhost:5672, but not from within my container, cause this will run in a diffrent network.

Here´s a small example what my setup looks like

image: microsoft/dotnet:sdk
pipelines:
 default:
   - step:
 caches:
   - dotnetcore
 script: # Modify the commands below to build your repository.
   - docker build -t company/image:tag -f ./company/service/Dockerfile ./company/service
   - docker run -d --name mycontainer -p 8000:80 -e ASPNETCORE_ENVIRONMENT=Development -e MESSAGEBUS="$CONNECTIONSTRINGS__APITESTSRABBITMQ" company/image:tag
 services:
   - docker
   - rabbitmq
definitions: 
 services: 
   rabbitmq:
     image: rabbitmq:3-alpine
options:
 docker: true

I have defined an environment variable CONNECTIONSTRINGS__APITESTSRABBITMQ with value rabbitmq://guest:guest@localhost:5672, but this is wrong cause rabbitmq is not accessible under this address from my container.

So is it possible to access a service from my container?

[jehof]

I am not sure if this is the correct way, but using --network="host" in docker run command, makes the rabbitmq is accessible via localhost from within my container

[gmtborges]

I got this error when set --network="host"

docker: Error response from daemon: cannot share the host's network namespace when user namespaces are enabled.

[Rudy Yazdi]

hey guys I'm running into the same issue, have you found a nice way of resolving it?

[manuel-koch]

I used the solution with "--add-host" described here : https://community.atlassian.com/t5/Bitbucket-articles/Changes-to-make-your-containers-more-secure-on-Bitbucket/ba-p/998464

[Mark Shropshire]

I think became not possible after "September 2018 - Docker in Docker User Namespace Remapping" https://confluence.atlassian.com/bitbucket/infrastructure-changes-in-bitbucket-pipelines-872135046.html.

I was trying to run OWASP Zap Baseline from a docker container against the main Pipelines container and I can't access it. https://github.com/zaproxy/zaproxy/wiki/ZAP-Baseline-Scan

Any ideas on a way to do this sort of thing?

Below is a snippet from my bitbucket-pipelines.yml file

- echo "OWASP ZAP report"

- docker version

- docker run -t owasp/zap2docker-stable zap-baseline.py -t http://127.0.0.1:8080

services:

- docker