a bit o' spruce, from http://play.spruce.cf

spruce.json

{"flavor":"1.29.0","prune":["meta"],"env":["HOME=/home/user"],"cherry_pick":[],"yaml":[{"filename":"mjolnir.yml","contents":"--- # mjolnir.yml\n  additionalJvmArgs:\n    - \"-XX:MaxRAM=8g\"\n    - \"-Dcom.sun.management.jmxremote.port=5555\"\n    - \"-Dcom.sun.management.jmxremote.ssl=false\"\n    - \"-Dcom.sun.management.jmxremote.authenticate=false\"\n    - \"-Dcom.sun.management.jmxremote.rmi.port=5555\"\n\n"},{"filename":"file2.yml","contents":"--- # final\n  additionalJvmArgs:\n    - (( append ))\n    - '-Dhttp.proxyHost=proxy-p.bedag.ch'\n    - '-Dhttp.proxyPort=8080'\n    - '-Dhttps.proxyHost=proxy-p.bedag.ch'\n    - '-Dhttps.proxyPort=8080'\n    - '-Dhttp.nonProxyHosts=localhost|127.0.0.1|kubernetes.default.svc|*.mgmtbi.ch|*.bedag.ch|*.svc.cluster.local'\n    - '-Dhttps.nonProxyHosts=localhost|127.0.0.1|kubernetes.default.svc|*.mgmtbi.ch|*.bedag.ch|*.svc.cluster.local'\n\n"}],"skip_eval":false,"fallback_append":false,"go_patch":false,"debug":false,"trace":false}