ansible执行带有环境变量的脚本不生效

1. 背景

jenkins发布时，使用ansible执行远程主机上的启动tomcat脚本发现不生效，启动tomcat的脚本中有环境变量。

ansible主机为：172.16.35.8

tomcat服务器为：172.16.35.56

tomcat启动脚本如下：

 [app@cecntos jenkins]$ cat tomcat_start.sh
 #!/bin/bash

 4export CATALINA_YCLOANS_BASE CATALINA_YCLOANS_HOME TOMCAT_YCLOANS_HOME
 5export JAVA_HOME=/usr/local/java/jdk1..0_45
 6export PATH=$JAVA_HOME/bin:$PATH
 7export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

#.启动tomcat
11echo "setup01:启动tomcat"
12cd /usr/local/tomcat/bin/ && ./startup.sh
13Process=`ps -ef |grep '/usr/local/tomcat' |grep -v grep|awk '{print $2}'|wc -l`
14sleep if [ "$Process" -eq "" ];then
    echo "  启动tomcat失败！"
    exit
18else
    echo "  启动tomcat完成！"
20fi

3. 现象

在tomcat服务器执行脚本无问题，可以正常启动。

启动

 [app@cecntos jenkins]$ ps -ef|grep tomcat
 2app      : pts/    :: grep tomcat
 [app@cecntos jenkins]$
 [app@cecntos jenkins]$ sh tomcat_start.sh
 5setup01:启动tomcat
 6Using CATALINA_CMIS_BASE:   /usr/local/tomcat
 7Using CATALINA_CMIS_HOME:   /usr/local/tomcat
 8Using CATALINA_TMPDIR: /usr/local/tomcat/temp
 9Using JRE_HOME:        /usr/local/java/jdk1..0_45/jre
10Using CLASSPATH:       /usr/local/tomcat/bin/bootstrap.jar: /usr/local/tomcat/bin/tomcat-juli.jar
11Tomcat started.
  启动tomcat完成！

在tomcat服务器查看状态正常；

[app@cecntos jenkins]$ ps -ef|grep tomcat
2app      : pts/    :: /usr/local/java/jdk1..0_45/jre/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.rmi.server.hostname=172.16..xx -Dcom.sun.management.jmxremote=true -Dcom.sun.management.jmxremote.port= -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Xms512m -Xmx2048m -XX:PermSize=1024M -XX:MaxNewSize=512m -XX:MaxPermSize=512m -XX:ParallelGCThreads= -XX:+UseConcMarkSweepGC -Xloggc:./gc.log -XX:+UseConcMarkSweepGC -Xloggc:./gc.log -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintHeapAtGC -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=./dump.core -Djava.endorsed.dirs=/endorsed -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start
3app      : pts/    :: grep tomcat

在tomcat服务器停止后去ansible主机执行启动脚本；

[app@cecntos jenkins]$ ps -ef |grep 'tomcat' |grep -v grep|awk '{print $2}'|xargs kill -
[app@cecntos jenkins]$ ps -ef|grep tomcat
3app     : pts/    :: grep tomcat

在ansible主机执行tomcat启动脚本；

[jenkins@VMcentos ~]$ sudo ansible 172.16.35.56 -u app -m shell -a 'sh /home/app/jenkins/tomcat_start.sh'
2172.16.35.56 | SUCCESS | rc= >>
3setup01:启动tomcat
4Tomcat started.
  启动tomcat完成！

显示启动成功，但是查看却没有进程；

[app@cecntos jenkins]$ ps -ef|grep tomcat
2app      : pts/    :: grep tomcat
[app@cecntos jenkins]$

4. 解决方法

在ansible执行启动脚本时，加一个“nohup”参数就可以解决

sh "sudo ansible ${serverIP} -u ${serverName} -m shell -a 'nohup sh ${cmisonlineShellName}'"

[jenkins@VM_131_4_centos ~]$ sudo ansible 172.16.35.56 -u app -m shell -a 'nohup sh /home/app/jenkins/tomcat_start.sh'
2172.16.35.56 | SUCCESS | rc= >>
3setup01:启动tomcat
4Tomcat started.
  启动tomcat完成！

查看；

[app@cecntos jenkins]$ ps -ef|grep tomcat
2app      : pts/    :: /usr/local/java/jdk1..0_45/jre/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.rmi.server.hostname=172.16..xx -Dcom.sun.management.jmxremote=true -Dcom.sun.management.jmxremote.port= -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Xms512m -Xmx2048m -XX:PermSize=1024M -XX:MaxNewSize=512m -XX:MaxPermSize=512m -XX:ParallelGCThreads= -XX:+UseConcMarkSweepGC -Xloggc:./gc.log -XX:+UseConcMarkSweepGC -Xloggc:./gc.log -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintHeapAtGC -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=./dump.core -Djava.endorsed.dirs=/endorsed -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start
3app      : pts/    :: grep tomcat

5. 原因

ansible执命令，默认不加载环境变量,nohup参数让脚本在后台执行，就可以加载里面的环境变量。