Spring Cloud Config使用Gitee为远程客户端时报错 Auth fail的解决办法_giteeauth fail

问题描述：

spring cloud config server 搭建远程仓库使用gitee的时候出现以下的报错

org.eclipse.jgit.api.errors.TransportException: ssh://username@gitee.com/project.git: Auth fail
    at org.eclipse.jgit.api.FetchCommand.call(FetchCommand.java:254) ~[org.eclipse.jgit-5.1.3.201810200350-r.jar:5.1.3.201810200350-r]
    at org.eclipse.jgit.api.CloneCommand.fetch(CloneCommand.java:306) ~[org.eclipse.jgit-5.1.3.201810200350-r.jar:5.1.3.201810200350-r]
    at org.eclipse.jgit.api.CloneCommand.call(CloneCommand.java:200) ~[org.eclipse.jgit-5.1.3.201810200350-r.jar:5.1.3.201810200350-r]
    at org.springframework.cloud.config.server.environment.JGitEnvironmentRepository.cloneToBasedir(JGitEnvironmentRepository.java:574) [spring-cloud-config-server-2.1.0.RC3.jar:2.1.0.RC3]
    at org.springframework.cloud.config.server.environment.JGitEnvironmentRepository.copyRepository(JGitEnvironmentRepository.java:549) [spring-cloud-config-server-2.1.0.RC3.jar:2.1.0.RC3]
    at org.springframework.cloud.config.server.environment.JGitEnvironmentRepository.createGitClient(JGitEnvironmentRepository.java:532) [spring-cloud-config-server-2.1.0.RC3.jar:2.1.0.RC3]
    at org.springframework.cloud.config.server.environment.JGitEnvironmentRepository.refresh(JGitEnvironmentRepository.java:261) [spring-cloud-config-server-2.1.0.RC3.jar:2.1.0.RC3]
    at org.springframework.cloud.config.server.environment.JGitEnvironmentRepository.getLocations(JGitEnvironmentRepository.java:240) [spring-cloud-config-server-2.1.0.RC3.jar:2.1.0.RC3]
    at org.springframework.cloud.config.server.environment.MultipleJGitEnvironmentRepository.getLocations(MultipleJGitEnvironmentRepository.java:150) [spring-cloud-config-server-2.1.0.RC3.jar:2.1.0.RC3]
    at org.springframework.cloud.config.server.environment.AbstractScmEnvironmentRepository.findOne(AbstractScmEnvironmentRepository.java:47) [spring-cloud-config-server-2.1.0.RC3.jar:2.1.0.RC3]
    at org.springframework.cloud.config.server.environment.MultipleJGitEnvironmentRepository.findOne(MultipleJGitEnvironmentRepository.java:190) [spring-cloud-config-server-2.1.0.RC3.jar:2.1.0.RC3]
    at org.springframework.cloud.config.server.environment.CompositeEnvironmentRepository.findOne(CompositeEnvironmentRepository.java:46) [spring-cloud-config-server-2.1.0.RC3.jar:2.1.0.RC3]
    at org.springframework.cloud.config.server.config.ConfigServerHealthIndicator.doHealthCheck(ConfigServerHealthIndicator.java:55) [spring-cloud-config-server-2.1.0.RC3.jar:2.1.0.RC3]
    at org.springframework.boot.actuate.health.AbstractHealthIndicator.health(AbstractHealthIndicator.java:84) [spring-boot-actuator-2.1.2.RELEASE.jar:2.1.2.RELEASE]
    at org.springframework.boot.actuate.health.CompositeHealthIndicator.health(CompositeHealthIndicator.java:98) [spring-boot-actuator-2.1.2.RELEASE.jar:2.1.2.RELEASE]
    at org.springframework.boot.actuate.health.HealthEndpoint.health(HealthEndpoint.java:50) [spring-boot-actuator-2.1.2.RELEASE.jar:2.1.2.RELEASE]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_201]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
    at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:246) [spring-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
    at org.springframework.boot.actuate.endpoint.invoke.reflect.ReflectiveOperationInvoker.invoke(ReflectiveOperationInvoker.java:76) [spring-boot-actuator-2.1.2.RELEASE.jar:2.1.2.RELEASE]
    at org.springframework.boot.actuate.endpoint.annotation.AbstractDiscoveredOperation.invoke(AbstractDiscoveredOperation.java:61) [spring-boot-actuator-2.1.2.RELEASE.jar:2.1.2.RELEASE]
    at org.springframework.boot.actuate.endpoint.jmx.EndpointMBean.invoke(EndpointMBean.java:126) [spring-boot-actuator-2.1.2.RELEASE.jar:2.1.2.RELEASE]
    at org.springframework.boot.actuate.endpoint.jmx.EndpointMBean.invoke(EndpointMBean.java:99) [spring-boot-actuator-2.1.2.RELEASE.jar:2.1.2.RELEASE]
    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_201]
    at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_201]
    at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) [na:1.8.0_201]
    at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) [na:1.8.0_201]
    at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) [na:1.8.0_201]
    at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401) [na:1.8.0_201]
    at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) [na:1.8.0_201]
    at sun.reflect.GeneratedMethodAccessor64.invoke(Unknown Source) ~[na:na]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
    at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357) [na:1.8.0_201]
    at sun.rmi.transport.Transport$1.run(Transport.java:200) [na:1.8.0_201]
    at sun.rmi.transport.Transport$1.run(Transport.java:197) [na:1.8.0_201]
    at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_201]
    at sun.rmi.transport.Transport.serviceCall(Transport.java:196) [na:1.8.0_201]
    at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573) [na:1.8.0_201]
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834) [na:1.8.0_201]
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688) [na:1.8.0_201]
    at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_201]
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687) [na:1.8.0_201]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_201]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_201]
    at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_201]
Caused by: org.eclipse.jgit.errors.TransportException: ssh://username@gitee.com/projec.gitt: Auth fail
    at org.eclipse.jgit.transport.JschConfigSessionFactory.getSession(JschConfigSessionFactory.java:192) ~[org.eclipse.jgit-5.1.3.201810200350-r.jar:5.1.3.201810200350-r]
    at org.eclipse.jgit.transport.SshTransport.getSession(SshTransport.java:140) ~[org.eclipse.jgit-5.1.3.201810200350-r.jar:5.1.3.201810200350-r]
    at org.eclipse.jgit.transport.TransportGitSsh$SshFetchConnection.<init>(TransportGitSsh.java:280) ~[org.eclipse.jgit-5.1.3.201810200350-r.jar:5.1.3.201810200350-r]
    at org.eclipse.jgit.transport.TransportGitSsh.openFetch(TransportGitSsh.java:170) ~[org.eclipse.jgit-5.1.3.201810200350-r.jar:5.1.3.201810200350-r]
    at org.eclipse.jgit.transport.FetchProcess.executeImp(FetchProcess.java:137) ~[org.eclipse.jgit-5.1.3.201810200350-r.jar:5.1.3.201810200350-r]
    at org.eclipse.jgit.transport.FetchProcess.execute(FetchProcess.java:123) ~[org.eclipse.jgit-5.1.3.201810200350-r.jar:5.1.3.201810200350-r]
    at org.eclipse.jgit.transport.Transport.fetch(Transport.java:1271) ~[org.eclipse.jgit-5.1.3.201810200350-r.jar:5.1.3.201810200350-r]
    at org.eclipse.jgit.api.FetchCommand.call(FetchCommand.java:243) ~[org.eclipse.jgit-5.1.3.201810200350-r.jar:5.1.3.201810200350-r]
    ... 47 common frames omitted
Caused by: com.jcraft.jsch.JSchException: Auth fail
    at com.jcraft.jsch.Session.connect(Session.java:519) ~[jsch-0.1.54.jar:na]
    at org.eclipse.jgit.transport.JschConfigSessionFactory.getSession(JschConfigSessionFactory.java:146) ~[org.eclipse.jgit-5.1.3.201810200350-r.jar:5.1.3.201810200350-r]
    ... 54 common frames omitted
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---

原因分析：

使用ssh方式连接的时候检验身份失败了，经过大量查证发现这是openssh格式生成的id_rsa密钥的一个小乌龙，openssh生成的密钥前会加入一行 “-----BEGIN OPENSSH PRIVATE KEY-----” 的注释，而JGit识别不了这个，因此会验证失败

解决方案：

1.升级版本

JGit在5.2版本之后解决了这个问题，因此只要spring cloud config内集成的JGit版本大于5.2就能解决这个问题，如3.1.0之后

2.换一种ssh密钥生成方式

• 删掉之前生成好的用户目录下的.ssh目录
• 重新运行下面的命令，指定生成PEM格式的密钥

ssh-keygen -m pem -t rsa -C "youremail@xx.com"
1

• 将id_rsa.pub的公钥重新配置给gitee，并通过git进行一次操作如git push更新本地的known_hosts

参考这条issue：2.1.0.RC3 can not use local ssh settings #1251