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

spruce.json

{"flavor":"1.17.0","prune":["meta"],"env":["HOME=/home/user"],"cherry_pick":[],"yaml":[{"filename":"mjolnir.yml","contents":"--- # mjolnir.yml\n\nenvironment:\n  protocol: (( grab environment.https || \"\" )) ## mandatory  \n  logmet_elkadapter_authorization: (( concat environment.user || \"\" environment.colon || \"\" environment.pass || \"\" environment.arroba || \"\" ))  ## mandatory\n  url_authentication: (( concat  \"\" environment.logmet_elkadapter_authorization ||  \"\" )) ##mandatory\n\n  https: \"http://\"\n  user: marc\n  pass: mypass\n  arroba: \"@\"\n  colon: \":\"\n  logmet_elkadapter_hostname: schunk.com\n\nurl_final: (( concat environment.protocol environment.url_authentication environment.logmet_elkadapter_hostname || nil ))\n\n\n\n\n\n\n\n"}],"skip_eval":false,"fallback_append":false,"go_patch":false,"debug":false,"trace":false}