Set the openjdk version to 11; Updated to a variable in the compose file

Chris Pomeroy

2021-04-04 bc3bfad7d7b1ecb96872f64c8c029d8d8bb18cd4

 Jenkinsfile

@@ -4,7 +4,7 @@

pipeline{
    agent{
        label "x86-docker-agent"
        label "master"
    }
    environment{
        def BUILDDATE = sh(script: "echo `date --rfc-3339=date`", returnStdout: true).trim()