jenkins-reprocess-date-range-for-loop.groovy

// ...

def DAYS_BACK = 30
def iterDate = new Date() - DAYS_BACK
def newDateParse
for (i=0; i <DAYS_BACK; i++) {
    iterDate = iterDate + 1
    newDateParse = iterDate.format("yyyy-MM-dd")
    
    stage("newDateParsed ${newDateParse}") {
        // do your stuff here
    }
}

// ...