Clean rundeck executions logs older than a given amount of days but keep a minimum amount of executions per job.

rd-clean-older-reports.sh

#!/bin/bash
# This script will clean executions older than a given amount of days ($DAYS) but will keep at least $KEEP executions.
# Based on @unicolet gist that keeps last 30 exec of each job ( https://gist.github.com/unicolet/af648a97163ce6b44645 )
# Taken from @lucabusin the workflow tables cleaning code ( https://gist.github.com/lucabusin/cad36a45764f2fc2e2daa81e2db4186d )
# setup ~/.mycnf or ~/.pgpass to allow passwordless connection to mysql/postgres
# Comment / Uncomment below to use postgres or mysql.

# Days to keep executions.
DAYS=90
# Minimum Amount to Keep
KEEP=30

# MySQL Connect string (use only DB name if connection is done with .mycnf credentials)
# Ej:
# MYSQL_CONNECT="rundeck"
# MYSQL_CONNECT="-h somehost -u user -ppassword somedbname"
MYSQL_CONNECT="rundeck"

cd /var/lib/rundeck/logs/rundeck

JOBS=`find . -maxdepth 3 -path "*/job/*" -type d`

for j in $JOBS ; do
  echo "Processing job $j"
  ids=`find $j -iname "*.rdlog" -mtime +$DAYS | sed -e "s/.*\/\([0-9]*\)\.rdlog/\1/" | sort -n -r`
  declare -a JOBIDS=($ids)  
  if [ ${#JOBIDS[@]} -gt $KEEP ]; then
    for job in ${JOBIDS[@]:$KEEP};do

      # Remove the job run files...
      echo " * Deleting job: $job" 
      #echo "   rm -rf $j/logs/$job.*"
      rm -rf $j/logs/$job.*

      # Get workflow ID for execution
      #echo "Getting workflowid: mysql $MYSQL_CONNECT -s -N -e \"SELECT workflow_id FROM execution WHERE id=$job\""
      workflowid=`mysql $MYSQL_CONNECT -s -N -e "SELECT workflow_id FROM execution WHERE id=$job"`

      # Get all workflowstepids for the execution workflowid
      #echo "Getting workflowstepids: mysql $MYSQL_CONNECT -s -N -e \"SELECT workflow_step_id FROM workflow_workflow_step WHERE workflow_commands_id=$workflowid\""
      workflowstepids=`mysql $MYSQL_CONNECT -s -N -e "SELECT workflow_step_id FROM workflow_workflow_step WHERE workflow_commands_id=$workflowid"`
      declare -a WSIDS=($workflowstepids)

      # Iterate over each workflow step id
      for workflowstepid in $WSIDS ; do

	# Remove workflow step id on workflow_workflow_step         
        #echo "   mysql ${MYSQL_CONNECT} -e 'DELETE FROM workflow_workflow_step WHERE workflow_step_id=$workflowstepid'"
        mysql ${MYSQL_CONNECT} -e "DELETE FROM workflow_workflow_step WHERE workflow_step_id=$workflowstepid"

        # Remove workflow step id on workflow_step
        #echo "   mysql ${MYSQL_CONNECT} -e 'DELETE FROM workflow_step WHERE id=$workflowstepid'"
        mysql ${MYSQL_CONNECT} -e "DELETE FROM workflow_step WHERE id=$workflowstepid"

      done

      # Remove job info from execution table
      #echo "   mysql ${MYSQL_CONNECT} -e 'DELETE FROM execution WHERE id=$job'"
      mysql ${MYSQL_CONNECT} -e "DELETE FROM execution WHERE id=$job"

      # Remove job info from base_report table
      #echo "   mysql ${MYSQL_CONNECT} -e 'DELETE FROM base_report WHERE jc_exec_id=$job'"
      mysql ${MYSQL_CONNECT} -e "DELETE FROM base_report WHERE jc_exec_id=$job"

      # Remove workflow id from workflow table
      #echo "   mysql ${MYSQL_CONNECT} -e 'DELETE FROM workflow WHERE id=$workflowid'"
      mysql ${MYSQL_CONNECT} -e "DELETE FROM workflow WHERE id=$workflowid"

    done
  fi
done

Thank you @unicolet for the original script and @lucabusin for the workflow tables cleaning.