in jenkins-pipeline-shared-libraries/vars/cloud.groovy [114:122]
String getReducedTag(String originalTag) {
try {
String[] versionSplit = originalTag.split("\\.")
return "${versionSplit[0]}.${versionSplit[1]}"
} catch (err) {
println "[ERROR] ${originalTag} cannot be reduced to the format X.Y"
throw err
}
}