Updated Jenkins start up script so its kicked off when creds are provided

jenkins/jenkins_setup/Dockerfile

@@ -1,4 +1,5 @@
 FROM jenkins/jenkins:2.332.3-lts
+
 ENV JAVA_OPTS -Djenkins.install.runSetupWizard=false
 ENV CASC_JENKINS_CONFIG /var/jenkins_home/casc.yaml
 

jenkins/jenkins_setup/setupjenkins.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+container_name="jenkins"
+username=$7
+password=$8
+
+echo "Building Jenkins instance!"
+
+# Build jenkins image from docker compose file 
+docker build -t jenkins:$container_name $(pwd)
+
+# wait until docker image is ready
+sleep 2
+
+# Build container
+docker run --name jenkins --rm -p 8080:8080 --env JENKINS_ADMIN_ID=$username --env JENKINS_ADMIN_PASSWORD=$password jenkins:$container_name