tomcat-memcached-support's Introduction

tomcat-memcached-support

兼容memcached session共享的docker镜像

usage

基于该tomcat镜像构建应用镜像，注意Dockerfile中如果需要使用CMD指令，那么CMD指令应该为：CMD rsq-tomcat-start.sh
应用镜像中需要指定tomcat的context.xml配置文件，并mount到/etc/config/rishiqing/tomcat/目录下，rsq-tomcat-start.sh启动时，会自动查找是否有/etc/config/rishiqing/tomcat/context.xml文件，如果存在，那么会覆盖tomcat中conf目录下的context.xml文件。

context.xml示例

non-sticky session

<?xml version='1.0' encoding='utf-8'?>
<Context>
    <WatchedResource>WEB-INF/web.xml</WatchedResource>
    <WatchedResource>${catalina.base}/conf/web.xml</WatchedResource>
    <Manager 
      className="de.javakaffee.web.msm.MemcachedBackupSessionManager"  
      memcachedNodes="n1:127.0.0.1:11211,n2:127.0.0.1:11212"
      sticky="false"
      sessionBackupAsync="false"
      lockingMode="all"
      requestUriIgnorePattern=".*\.(ico|png|gif|jpg|css|js)$"  
      transcoderFactoryClass="de.javakaffee.web.msm.JavaSerializationTranscoderFactory"  
    />
</Context>

sticky session

<?xml version='1.0' encoding='utf-8'?>
<Context>
    <WatchedResource>WEB-INF/web.xml</WatchedResource>
    <WatchedResource>${catalina.base}/conf/web.xml</WatchedResource>
    <Manager
      className="de.javakaffee.web.msm.MemcachedBackupSessionManager"
      memcachedNodes="ttm-memcached.ttm-beta.svc.cluster.local:11211"
      requestUriIgnorePattern=".*\.(ico|png|gif|jpg|css|js)$"
      sessionBackupAsync="false"
      sessionBackupTimeout="2000"
      transcoderFactoryClass="de.javakaffee.web.msm.JavaSerializationTranscoderFactory"
    />
</Context>

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