Bitbucket pipeline

[islam]

i  have bit bucket  pipeline always  fails when connection to my local Jenkins runner 
i have dockercompose file and  has  2  container   jenkins   and  jenkins  runner jobs 
and  has  bitbucket pipline  as below 

pipelines:

branches:

release/*:

- step:

name: Trigger Jenkins Job Build

runs-on:

- "self.hosted"

- "jenkins"

services:

- docker

caches:

- docker # adds docker layer caching -test

script:

- pipe: atlassian/jenkins-job-trigger:0.10.0

variables:

JENKINS_URL: "http://172.18.0.3:8080/job"

JENKINS_USER: "XXXXXXXXXXXXXXXXXXXXXXXXXXXxx"

JENKINS_TOKEN: "XXXXXXXXXXXXXXXXXXXXXXXXXXX"

JOB_NAME: "XXXXXXXXXXXXXXX"

JOB_PARAMETERS: >

{

"BranchName": "$BITBUCKET_BRANCH"

}

DEBUG: "true"

 i need sample of the XXXX values   
i got this  errors 
HTTP/11" 200 None
INFO: None
INFO: Submitting jenkins job...
DEBUG: Starting new HTTP connection (1): 172.18.0.3:8080
Traceback (most recent call last):
File "/usr/local/lib/python3.10/site-packages/urllib3/connection.py", line 196, in _new_conn
sock = connection.create_connection(
File "/usr/local/lib/python3.10/site-packages/urllib3/util/connection.py", line 85, in create_connection
raise err
File "/usr/local/lib/python3.10/site-packages/urllib3/util/connection.py", line 73, in create_connection
sock.connect(sa)
OSError: [Errno 113] No route to host

the docker compose  uses the default network