def envVars = ["SAML2AWS_USERNAME=username", "SAML2AWS_PASSWORD=password","SAML2AWS_IAM_ROLE_ARN=role"]
def sout = new StringBuilder(), serr = new StringBuilder()
proc = "saml2aws -a AWS-NonProd exec 'ls'".execute(envVars,null)
proc.consumeProcessOutput(sout, serr)
proc.waitForOrKill(10000)
println "out> $sout err> $serr"