日志分析报错：
[05/27/21 22:47:49] [SSH] 正在拷贝最新版本的 remoting.jar... Source agent ha
[04/11/19 00:49:34] [SSH] Copied 529,326 bytes.
Expanded the channel window size to 4MB
[04/11/19 00:49:34] [SSH] Starting agent process: cd "/root/.jenkins" && /home/hc/java/jdk1.8.0_181/bin/java -jar remoting.jar -workDir /root/.jenkins
"-workDir" is not a valid option
java -jar slave.jar [options...]
-auth user:pass : If your Jenkins is security-enabled, specify
a valid user name and password.
-connectTo HOST:PORT : make a TCP connection to the given host and
port, then start communication.
-cp (-classpath) PATH : add the given classpath elements to the
system classloader.
-jar-cache DIR : Cache directory that stores jar files sent
from the master
-jnlpCredentials USER:PASSWORD : HTTP BASIC AUTH header to pass in for making
HTTP requests.
-jnlpUrl URL : instead of talking to the master via
stdin/stdout, emulate a JNLP client by
making a TCP connection to the master.
Connection parameters are obtained by
parsing the JNLP file.
-noReconnect : Doesn't try to reconnect when a
communication fail, and exit instead
-proxyCredentials USER:PASSWORD : HTTP BASIC AUTH header to pass in for making
HTTP authenticated proxy requests.
-secret HEX_SECRET : Slave connection secret to use instead of
-jnlpCredentials.
-slaveLog FILE : create local slave error log
-tcp FILE : instead of talking to the master via
stdin/stdout, listens to a random local
port, write that port number to the given
file, then wait for the master to connect to
that port.
-text : encode communication with the master with
base64. Useful for running slave over 8-bit
unsafe protocol like telnet
Slave JVM has terminated. Exit code=0
[04/11/19 00:49:35] Launch failed - cleaning up connection
[04/11/19 00:49:35] [SSH] 连接关闭。
参考原文链接：https://blog.csdn.net/wise18146705004/article/details/105551301
分析原因：
大家可以看哦，上面这个设置页面里面的启动方式只有Launch Agents Via SSH选项，
而没有Launch slave Agents Via SSH选项，
最后导致我只选了Launch Agents Via SSH选项和Host Key Verification Strategy的know hosts file version strategy选项。
这样就会报错了，不知道为什么新版的Jenkins启动方式里面没有Launch slave Agents Via SSH，
但是问题也很好解决！
解决方案：
大家只需要把Host Key Verification Strategy选项改选为Non verifying Vervification Strategy就可以解决这个问题了！
ps:记得java路径配置到/bin/java 最初的时候我只配置到了bin 一直未成功！