管理 RabbitMQ 服务器的几种方式

[root@Betty ~]# vi /usr/sbin/rabbitmq-env    #!/bin/sh  ##  The contents of this file are subject to the Mozilla Public License  ##  Version 1.1 (the "License"); you may not use this file except in  ##  compliance with the License. You may obtain a copy of the License  ##  at http://www.mozilla.org/MPL/  ##  ##  Software distributed under the License is distributed on an "AS IS"  ##  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See  ##  the License for the specific language governing rights and  ##  limitations under the License.  ##  ##  The Original Code is RabbitMQ.  ##  ##  The Initial Developer of the Original Code is VMware, Inc.  ##  Copyright (c) 2007-2013 VMware, Inc.  All rights reserved.  ##    # Determine where this script is really located (if this script is  # invoked from another script, this is the location of the caller)  SCRIPT_PATH="$0"    # $0 的值应该为 /usr/sbin/rabbitmq-env  while [ -h "$SCRIPT_PATH" ] ; do       # -h 用于判定是否为符号链接      # readlink -f 获取符号链接 rabbitmq-env 所对应的完整路径 /usr/lib/rabbitmq/sbin/rabbitmq-env      FULL_PATH=`readlink -f $SCRIPT_PATH 2>/dev/null`      if [ "$?" != "0" ]; then   # 判定上一步执行结果是否为成功      # 直接执行 readlink 将获取符号链接 rabbitmq-env 所对应的相对路径 ../lib/rabbitmq/sbin/rabbitmq-env        REL_PATH=`readlink $SCRIPT_PATH`        # expr STRING : REGEXP 判定 $REL_PATH 是不是以 '/' 开头        if expr "$REL_PATH" : '/.*' > /dev/null; then          SCRIPT_PATH="$REL_PATH"   # 以 '/' 开头        else          SCRIPT_PATH="`dirname "$SCRIPT_PATH"`/$REL_PATH"        fi      else        SCRIPT_PATH=$FULL_PATH      fi  done    SCRIPT_DIR=`dirname $SCRIPT_PATH`    # 得到 SCRIPT_DIR = /usr/lib/rabbitmq/sbin  RABBITMQ_HOME="${SCRIPT_DIR}/.."     # 得到 RABBITMQ_HOME = /usr/lib/rabbitmq/  [ "x" = "x$HOSTNAME" ] && HOSTNAME=`env hostname`  # 得到 HOSTNAME = Betty  NODENAME=rabbit@${HOSTNAME%%.*}      # 得到 NODENAME = rabbit@Betty 其中 ${HOSTNAME%%.*} 的含义是                                       # 以 '.' 为分隔位置，从后开始作最长匹配的删除                                       # 如果是一个 '%' 则为最短匹配    ## Set defaults  . ${SCRIPT_DIR}/rabbitmq-defaults    # 初始化默认环境变量（详见下面）    ## Common defaults  SERVER_ERL_ARGS="+K true +A30 +P 1048576 \    -kernel inet_default_connect_options [{nodelay,true}]"    # 默认的通用配置选项    # warn about old rabbitmq.conf file, if no new one  if [ -f /etc/rabbitmq/rabbitmq.conf ] && \     [ ! -f ${CONF_ENV_FILE} ] ; then      echo -n "WARNING: ignoring /etc/rabbitmq/rabbitmq.conf -- "   # echo -n 不输出换行符      echo "location has moved to ${CONF_ENV_FILE}"  fi    ## Get configuration variables from the configure environment file  [ -f ${CONF_ENV_FILE} ] && . ${CONF_ENV_FILE} # 如果存在 ${CONF_ENV_FILE} 文件则执行该 环境配置 文件

[root@Betty ~]# vi /usr/sbin/rabbitmq-defaults     #!/bin/sh  ##  The contents of this file are subject to the Mozilla Public License  ##  Version 1.1 (the "License"); you may not use this file except in  ##  compliance with the License. You may obtain a copy of the License  ##  at http://www.mozilla.org/MPL/  ##  ##  Software distributed under the License is distributed on an "AS IS"  ##  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See  ##  the License for the specific language governing rights and  ##  limitations under the License.  ##  ##  The Original Code is RabbitMQ.  ##  ##  The Initial Developer of the Original Code is VMware, Inc.  ##  Copyright (c) 2012-2013 VMware, Inc.  All rights reserved.  ##    ### next line potentially updated in package install steps  SYS_PREFIX=    ### next line will be updated when generating a standalone release  ERL_DIR=    CLEAN_BOOT_FILE=start_clean  SASL_BOOT_FILE=start_sasl    ## Set default values    CONFIG_FILE=${SYS_PREFIX}/etc/rabbitmq/rabbitmq                 # 配置文件路径  LOG_BASE=${SYS_PREFIX}/var/log/rabbitmq                         # 日志文件路径  MNESIA_BASE=${SYS_PREFIX}/var/lib/rabbitmq/mnesia               # 数据库路径  ENABLED_PLUGINS_FILE=${SYS_PREFIX}/etc/rabbitmq/enabled_plugins # 记录已使能插件的文件    PLUGINS_DIR="${RABBITMQ_HOME}/plugins"                          # 插件所在路径    CONF_ENV_FILE=${SYS_PREFIX}/etc/rabbitmq/rabbitmq-env.conf      # 环境配置文件