Ceph Mon Orchestration

gistfile1.txt

#!/bin/bash

if [ ! -n "$MON_NAME" ]; then
   echo "ERROR- MON_NAME must be defined as the name of the monitor"
   exit 1
fi

if [ ! -n "$MON_IP" ]; then
   echo "ERROR- MON_IP must be defined as the IP address of the monitor"
   exit 1
fi

CLUSTER=${CLUSTER:-ceph}
CLUSTER_PATH=/ceph/$CLUSTER

if ! etcdctl get ${CLUSTER_PATH}/completed > /dev/null 2>%1 ; then

  if etcdctl get ${CLUSTER_PATH}/monitor-lock > /dev/null 2>&1 ; then
    while monitor=$(etcdctl get ${CLUSTER_PATH}/monitor-lock 2> /dev/null) ; do
      echo "waiting for monitor ${monitor} to finish initialization"
      sleep 1
    done
  else
    echo "aquiring lock for ${MON_NAME}"

    etcdctl mk ${CLUSTER_PATH}/monitor-lock ${MON_NAME} --ttl 15 > /dev/null 2>&1

    sleep 10
    
    echo "completed initialization for ${MON_NAME}"
    etcdctl set ${CLUSTER_PATH}/completed true --ttl 10 > /dev/null 2>&1
    etcdctl rm ${CLUSTER_PATH}/monitor-lock > /dev/null 2>&1
  fi
fi