我可以设置〜/ .ssh / config来查找动态EC2主机名吗？

时间：2019-04-08 18:24:03

标签： amazon-ec2 openssh ssh-config

我在动态IP上有一个EC2实例，它没有执行任何形式的DDNS来保持指向公共主机名。我想在 org.springframework.data.redis.RedisConnectionFailureException: java.net.SocketTimeoutException: Read timed out; nested exception is redis.clients.jedis.exceptions.JedisConnectionException: java.net.SocketTimeoutException: Read timed out at org.springframework.data.redis.connection.jedis.JedisExceptionConverter.convert(JedisExceptionConverter.java:47) at org.springframework.data.redis.connection.jedis.JedisExceptionConverter.convert(JedisExceptionConverter.java:36) at org.springframework.data.redis.PassThroughExceptionTranslationStrategy.translate(PassThroughExceptionTranslationStrategy.java:37) at org.springframework.data.redis.FallbackExceptionTranslationStrategy.translate(FallbackExceptionTranslationStrategy.java:37) at org.springframework.data.redis.connection.jedis.JedisConnection.convertJedisAccessException(JedisConnection.java:210) at org.springframework.data.redis.connection.jedis.JedisConnection.hGetAll(JedisConnection.java:2799) at org.springframework.data.redis.core.DefaultHashOperations$13.doInRedis(DefaultHashOperations.java:223) at org.springframework.data.redis.core.DefaultHashOperations$13.doInRedis(DefaultHashOperations.java:220) at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:191) at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:153) at org.springframework.data.redis.core.AbstractOperations.execute(AbstractOperations.java:86) at org.springframework.data.redis.core.DefaultHashOperations.entries(DefaultHashOperations.java:220) at org.springframework.data.redis.core.DefaultBoundHashOperations.entries(DefaultBoundHashOperations.java:101) at org.springframework.session.data.redis.RedisOperationsSessionRepository.getSession(RedisOperationsSessionRepository.java:233) at org.springframework.session.data.redis.RedisOperationsSessionRepository.getSession(RedisOperationsSessionRepository.java:220) at org.springframework.session.data.redis.RedisOperationsSessionRepository.getSession(RedisOperationsSessionRepository.java:141) at org.springframework.session.web.http.SessionRepositoryFilter$SessionRepositoryRequestWrapper.getSession(SessionRepositoryFilter.java:276) at org.springframework.web.context.request.ServletRequestAttributes.updateAccessedSessionAttributes(ServletRequestAttributes.java:255) at org.springframework.web.context.request.AbstractRequestAttributes.requestCompleted(AbstractRequestAttributes.java:48) at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:106) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:87) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.springframework.session.web.http.SessionRepositoryFilter.doFilterInternal(SessionRepositoryFilter.java:125) at org.springframework.session.web.http.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:65) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:103) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212) at org.apache.catalina.core.StandardContextValve.__invoke(StandardContextValve.java:106) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:41002) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) at ch.qos.logback.access.tomcat.LogbackValve.invoke(LogbackValve.java:256) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:522) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1095) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1502) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1458) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) Caused by: redis.clients.jedis.exceptions.JedisConnectionException: java.net.SocketTimeoutException: Read timed out at redis.clients.util.RedisInputStream.ensureFill(RedisInputStream.java:201) at redis.clients.util.RedisInputStream.readByte(RedisInputStream.java:40) at redis.clients.jedis.Protocol.process(Protocol.java:141) at redis.clients.jedis.Protocol.read(Protocol.java:205) at redis.clients.jedis.Connection.readProtocolWithCheckingBroken(Connection.java:297) at redis.clients.jedis.Connection.getBinaryMultiBulkReply(Connection.java:233) at redis.clients.jedis.BinaryJedis.hgetAll(BinaryJedis.java:930) at org.springframework.data.redis.connection.jedis.JedisConnection.hGetAll(JedisConnection.java:2797) ... 54 common frames omitted Caused by: java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(SocketInputStream.java) at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) at java.net.SocketInputStream.read(SocketInputStream.java:171) at java.net.SocketInputStream.read(SocketInputStream.java:141) at java.net.SocketInputStream.read(SocketInputStream.java:127) at redis.clients.util.RedisInputStream.ensureFill(RedisInputStream.java:195) 中为服务器设置一个快捷方式，并要求ssh_config告诉我IP或主机名是什么。 

aws

但是我不知道如何将公共IP或主机名解析委派给$ aws ec2 describe-instances \ --filters Name=key-name,Values=FOO \ --query 'Reservations[*].Instances[*].PublicDnsName' \ --output 'text' ec2-XXX-XXX-XXX-XXX.compute-X.amazonaws.com 。

我看到various people包含用于从aws生成ssh_config的脚本，但是我还有其他东西，如果脚本要修改文件，我宁愿不丢失。 Some other people可以使用Shell别名代替aws，但这会使其他专门依赖SSH的服务复杂化。

如果可能的话，我也首选不使用外部脚本。

ssh

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1 个答案:

答案 0 :(得分：0)

这违反了问题中的某些要求，因此不会被接受：

您可以使用Include关键字添加单独的ssh_config文件，并使用脚本进行更新。这样可以防止您的主要配置因脚本运行错误而被破坏。

# Primary ~/.ssh/config
Include config-ec2

# Periodically regenerated ssh_config at ~/.ssh/config-ec2
Host FOO ec2-FOO
    User ec2-user
    HostName ec2-XXX-XXX-XXX-XXX.compute-X.amazonaws.com

    # Figuring out how to specify a different pem for
    # each connection is still troublesome.
    IdentityFile ~/.ssh/creds/some.pem

从好的方面来说，这使您可以ProxyCommand进行实际代理。

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