[JIRA] (JENKINS-58483) Jenkins 2.185 won't connect to SSH agents

[jens.adam+jenkins@grandcentrix.net (JIRA)]

Jens Adam created an issue

Jenkins / JENKINS-58483 Jenkins 2.185 won't connect to SSH agents Issue Type: Bug Assignee: Unassigned Components: core Created: 2019-07-14 22:29 Environment: Jenkins 2.185, Ubuntu 16.04, OpenJDK 1.8.0, latest plugins (ssh-slaves 1.30) Priority: Major Reporter: Jens Adam ERROR: Unexpected error in launching a agent. This is probably a bug in Jenkins.ERROR: Unexpected error in launching a agent. This is probably a bug in Jenkins.java.lang.IllegalArgumentException: Unknown server host key algorithm 'ssh-ed25519' at com.trilead.ssh2.transport.KexManager.checkServerHostkeyAlgorithmsList(KexManager.java:316) at com.trilead.ssh2.Connection.setServerHostKeyAlgorithms(Connection.java:1289) at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:412) at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:406) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)[07/14/19 22:07:00] Launch failed - cleaning up connection[07/14/19 22:07:00] [SSH] Connection closed. Plugins were updated three days ago and a restart of 2.184 went fine. Now I just updated to 2.185 and got the quoted "Unknown server host key algorithm 'ssh-ed25519'" messages with all agents (Linux and MacOS) offline. Probably something related to the recent 'trilead' changes? Add Comment

This message was sent by Atlassian Jira (v7.11.2#711002-sha1:fdc329d)

[jens.adam+jenkins@grandcentrix.net (JIRA)]

Jens Adam updated an issue

Jenkins / JENKINS-58483 Jenkins 2.185 won't connect to SSH agents

Change By: Jens Adam {quote}ERROR: Unexpected error in launching a agent. This is probably a bug in Jenkins.ERROR: Unexpected error in launching a agent. This is probably a bug in Jenkins.java.lang.IllegalArgumentException: Unknown server host key algorithm 'ssh-ed25519' at com.trilead.ssh2.transport.KexManager.checkServerHostkeyAlgorithmsList(KexManager.java:316) at com.trilead.ssh2.Connection.setServerHostKeyAlgorithms(Connection.java:1289) at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:412) at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:406) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)[07/14/19 22:07:00] Launch failed - cleaning up connection[07/14/19 22:07:00] [SSH] Connection closed. {quote}

Plugins were updated three days ago and a restart of 2.184 went fine. Now I just updated to 2.185 and got the quoted "Unknown server host key algorithm 'ssh-ed25519'" messages with all agents (Linux and MacOS) offline. Probably something related to the recent 'trilead' changes?

Workaround: Downgrade to previous version ('apt install jenkins=2.184').

Add Comment

[o.v.nenashev@gmail.com (JIRA)]

Oleg Nenashev assigned an issue to Ivan Fernandez Calvo

Jenkins / JENKINS-58483 Jenkins 2.185 won't connect to SSH agents

Change By: Oleg Nenashev Assignee: Ivan Fernandez Calvo

Add Comment

[remi.van-goethem@ingenico.com (JIRA)]

Remi Van Goethem commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents Same issue here. We have to remain on 2.184 for the time being

Add Comment

[reiner.wirtz@ser.de (JIRA)]

Reiner Wirtz commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

Same issue here, We have to go back to Version 2.184

Add Comment

[kuisathaverat@gmail.com (JIRA)]

Ivan Fernandez Calvo edited a comment on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

trilead-ssh2-build-217-jenkins-14 is the version provided in Jenkins core 2.184, the version that supports ed25519 is trilead-ssh2-build-217-jenkins-16 that it is included on trilead-api 1.0.4. Could you check if trilead-api 1.0.4 is installed when you use Jenkins core 2.185 ?

Add Comment

[kuisathaverat@gmail.com (JIRA)]

Ivan Fernandez Calvo commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents trilead-ssh2-build-217-jenkins-14 is the version provided in Jenkins core 2.184, the version that supports ed25519 is trilead-ssh2-build-217-jenkins-16 that it is included on trilead-api 1.0.4. Could you check if trilead-api 1.0.4 is installed when you use Jenkins core 2.185

Add Comment

[reiner.wirtz@ser.de (JIRA)]

Reiner Wirtz commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

Yes, trilead-api-plugin version 1.0.4 ist installed   Über Trilead API Plugin 1.0.4

Add Comment

[reiner.wirtz@ser.de (JIRA)]

Reiner Wirtz edited a comment on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

Yes, trilead-api-plugin version 1.0.4 ist is installed   h1. Über Trilead API Plugin 1.0.4

Add Comment

[harald.kraemer@sabio.de (JIRA)]

Harald Kraemer commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

Hello, I'm currently comparing a 2.185 instance having hits issue and a 2.184 war file. Something that stands out to me: in the 2.184 warfile, I have a trilead-ssh2-build-217-jenkins-14.jar (built 2018) on the 2.185 instance in $install/plugins, I have trilead-api 1.0.4 and trilead-ssh2-build-217-jenkins-16.jar (built 2019) on the 2.185 instance in the warfile, I have trilead-ssh2-build214-jenkins-1.jar (build 2012) Now I don't know the jenkins classloading here, but the downgrade of the embedded library seems strange.

Add Comment

[harald.kraemer@sabio.de (JIRA)]

Harald Kraemer edited a comment on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

Hello, I'm currently comparing a 2.185 instance having hits issue and a 2.184 war file. Something that stands out to me:

* in the 2.184 warfile, I have a trilead-ssh2-build-217-jenkins-14.jar (built 2018) * on the 2.185 instance in $install/plugins, I have trilead-api 1.0.4 and trilead-ssh2-build-217-jenkins-16.jar (built 2019) * on the 2.185 instance in the warfile, I have trilead-ssh2-build214-jenkins-1.jar (build 2012) Now I don't know the jenkins classloading here, but the downgrade of the embedded library seems strange. Let me know if I should provide more information.

Add Comment

[kuisathaverat@gmail.com (JIRA)]

Ivan Fernandez Calvo commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

ok, I've made an update from 2.184 to 2.185 and I found something weird, there are two trilead-ssh libraries and should not, Oleg Nenashev we should mask the library in the Core from the trilead-api plugin ./plugins/trilead-api ./plugins/trilead-api/META-INF/maven/org.jenkins-ci.plugins/trilead-api ./plugins/trilead-api/WEB-INF/lib/trilead-putty-extension-1.2.jar ./plugins/trilead-api/WEB-INF/lib/trilead-ssh2-build-217-jenkins-16.jar ./plugins/trilead-api/WEB-INF/lib/trilead-api.jar ./plugins/trilead-api.jpi ./war/WEB-INF/detached-plugins/trilead-api.hpi ./war/WEB-INF/lib/trilead-putty-extension-1.2.jar ./war/WEB-INF/lib/trilead-ssh2-build214-jenkins-1.jar

Add Comment

[kuisathaverat@gmail.com (JIRA)]

Ivan Fernandez Calvo commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

I've removed ./war/WEB-INF/lib/trilead-putty-extension-1.2.jar and ./war/WEB-INF/lib/trilead-ssh2-build214-jenkins-1.jar and the issue seems to disappear, so it is a problem related to the duplicated libraries and the class loader.

Add Comment

[o.v.nenashev@gmail.com (JIRA)]

Oleg Nenashev updated an issue

Jenkins / JENKINS-58483

Jenkins 2.185 won't connect to SSH agents

Change By: Oleg Nenashev Labels: regression

Add Comment

[o.v.nenashev@gmail.com (JIRA)]

Oleg Nenashev updated an issue

Jenkins / JENKINS-58483 Jenkins 2.185 won't connect to SSH agents

Change By: Oleg Nenashev Priority: Major Blocker

Add Comment

[o.v.nenashev@gmail.com (JIRA)]

Oleg Nenashev commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents Looks like Trilead is still being pulled into as a dependnecy, e.g. by SSHD Module or similar components

Add Comment

[o.v.nenashev@gmail.com (JIRA)]

Oleg Nenashev commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

Ivan Fernandez Calvo Looks like https://github.com/jenkinsci/ssh-cli-auth-module/pull/5 and lack of JENKINS-43669 resolution are the root cause, right?

Add Comment

[troncek@gmail.com (JIRA)]

Tadej Lasic commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

Same issue here as well using SSH + manually provided key verification strategy. Reverting to 2.184 helps.

Add Comment

[tbartley@anonyome.com (JIRA)]

Tim Bartley commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

I see a slightly different error signature with inability of 2.185 to contact SSH slave but reverting to 2.184 also resolves the issue. ssh-slaves plugin version is 1.30.0, Trilead API plugin version is 1.0.4. This is the exception I see in the log when launching the agent: 07/15/19 17:05:24] [SSH] Opening SSH connection to 10.194.7.64:22. ERROR: Unexpected error in launching a agent. This is probably a bug in Jenkins. java.lang.NoSuchMethodError: com.trilead.ssh2.Connection.connect(Lcom/trilead/ssh2/ServerHostKeyVerifier;III)Lcom/trilead/ssh2/ConnectionInfo; at hudson.plugins.sshslaves.SSHLauncher.openConnection(SSHLauncher.java:817) at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:419) at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:406) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)

Add Comment

[o.v.nenashev@gmail.com (JIRA)]

Oleg Nenashev commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

I confirm the issue happens in my local build. Looks like it comes from the CLI dependency   [INFO] org.jenkins-ci.main:jenkins-core:jar:2.186-SNAPSHOT [INFO] +- org.jenkins-ci.plugins.icon-shim:icon-set:jar:1.0.5:compile [INFO] +- org.jenkins-ci.main:remoting:jar:3.33:compile [INFO] | \- org.jenkins-ci:constant-pool-scanner:jar:1.2:compile [INFO] +- org.jenkins-ci.main:cli:jar:2.186-SNAPSHOT:compile [INFO] | +- net.i2p.crypto:eddsa:jar:0.3.0:compile [INFO] | \- org.jenkins-ci:trilead-ssh2:jar:build214-jenkins-1:compile

Add Comment

[o.v.nenashev@gmail.com (JIRA)]

Oleg Nenashev commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

Oh well, Jenkins core includes CLI https://github.com/jenkinsci/jenkins/blob/jenkins-2.185/core/pom.xml#L58-L62 . Right now I do not have any idea except removing the dependency or excluding the JAR from the dependencies. Both options will unlikely fly well, but I am trying them locally

Add Comment

[o.v.nenashev@gmail.com (JIRA)]

Oleg Nenashev commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

Created JENKINS-58494 for the CLI dependency removal

Add Comment

[rafael.camargo.sp@gmail.com (JIRA)]

Rafael Camargo commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

Same issue here Jenkins 2.185

Add Comment

[rafael.camargo.sp@gmail.com (JIRA)]

Rafael Camargo edited a comment on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

Same issue here Jenkins 2.185

SSHLauncher\{host='dhp-dev-app-01.sq-cloud.local', port=22, credentialsId='ssh_jenkins', jvmOptions='', javaPath='', prefixStartSlaveCmd='', suffixStartSlaveCmd='', launchTimeoutSeconds=210, maxNumRetries=10, retryWaitTime=15, sshHostKeyVerificationStrategy=hudson.plugins.sshslaves.verifiers.NonVerifyingKeyVerificationStrategy, tcpNoDelay=true, trackCredentials=true}[07/15/19 09:53:34] [SSH] Opening SSH connection to dhp-dev-app-01.sq-cloud.local:22.[07/15/19 09:53:35] [SSH] WARNING: SSH Host Keys are not being verified. Man-in-the-middle attacks may be possible against this connection.ERROR: SSH authentication failedjava.lang.ClassNotFoundException: com.trilead.ssh2.crypto.cipher.BlockCipher at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:555) at java.lang.ClassLoader.loadClass(ClassLoader.java:357)Caused: java.lang.NoClassDefFoundError: com/trilead/ssh2/crypto/cipher/BlockCipher at com.cloudbees.jenkins.plugins.sshcredentials.impl.BasicSSHUserPrivateKey.getPrivateKeys(BasicSSHUserPrivateKey.java:174) at com.cloudbees.jenkins.plugins.sshcredentials.SSHAuthenticator.getPrivateKeys(SSHAuthenticator.java:484) at com.cloudbees.jenkins.plugins.sshcredentials.impl.TrileadSSHPublicKeyAuthenticator.doAuthenticate(TrileadSSHPublicKeyAuthenticator.java:107) at com.cloudbees.jenkins.plugins.sshcredentials.SSHAuthenticator.authenticate(SSHAuthenticator.java:436) at com.cloudbees.jenkins.plugins.sshcredentials.SSHAuthenticator.authenticate(SSHAuthenticator.java:473) at hudson.plugins.sshslaves.SSHLauncher.openConnection(SSHLauncher.java:1213) at hudson.plugins.sshslaves.SSHLauncher$2.call(SSHLauncher.java:846) at hudson.plugins.sshslaves.SSHLauncher$2.call(SSHLauncher.java:833) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)[07/15/19 09:53:35] [SSH] Authentication failed.Authentication failed.[07/15/19 09:53:35] Launch failed - cleaning up connection[07/15/19 09:53:35] [SSH] Connection closed.

Add Comment

[rafael.camargo.sp@gmail.com (JIRA)]

Rafael Camargo edited a comment on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

{code:java}

Same issue here Jenkins 2.185       SSHLauncher \ {host='dhp-dev-app-01.sq-cloud.local', port=22, credentialsId='ssh_jenkins', jvmOptions='', javaPath='', prefixStartSlaveCmd='', suffixStartSlaveCmd='', launchTimeoutSeconds=210, maxNumRetries=10, retryWaitTime=15, sshHostKeyVerificationStrategy=hudson.plugins.sshslaves.verifiers.NonVerifyingKeyVerificationStrategy, tcpNoDelay=true, trackCredentials=true}[07/15/19 09:53:34] [SSH] Opening SSH connection to dhp-dev-app-01.sq-cloud.local:22.[07/15/19 09:53:35] [SSH] WARNING: SSH Host Keys are not being verified. Man-in-the-middle attacks may be possible against this connection.ERROR: SSH authentication failedjava.lang.ClassNotFoundException: com.trilead.ssh2.crypto.cipher.BlockCipher at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:555) at java.lang.ClassLoader.loadClass(ClassLoader.java:357)Caused: java.lang.NoClassDefFoundError: com/trilead/ssh2/crypto/cipher/BlockCipher at com.cloudbees.jenkins.plugins.sshcredentials.impl.BasicSSHUserPrivateKey.getPrivateKeys(BasicSSHUserPrivateKey.java:174) at com.cloudbees.jenkins.plugins.sshcredentials.SSHAuthenticator.getPrivateKeys(SSHAuthenticator.java:484) at com.cloudbees.jenkins.plugins.sshcredentials.impl.TrileadSSHPublicKeyAuthenticator.doAuthenticate(TrileadSSHPublicKeyAuthenticator.java:107) at com.cloudbees.jenkins.plugins.sshcredentials.SSHAuthenticator.authenticate(SSHAuthenticator.java:436) at com.cloudbees.jenkins.plugins.sshcredentials.SSHAuthenticator.authenticate(SSHAuthenticator.java:473) at hudson.plugins.sshslaves.SSHLauncher.openConnection(SSHLauncher.java:1213) at hudson.plugins.sshslaves.SSHLauncher$2.call(SSHLauncher.java:846) at hudson.plugins.sshslaves.SSHLauncher$2.call(SSHLauncher.java:833) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)[07/15/19 09:53:35] [SSH] Authentication failed.Authentication failed.[07/15/19 09:53:35] Launch failed - cleaning up connection[07/15/19 09:53:35] [SSH] Connection closed.

{code}

Add Comment

[rmnobarra@gmail.com (JIRA)]

Leonardo Santos commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

Same issue with Jenkins 2.185   SSHLauncher

{host='dhp-dev-app-01.sq-cloud.local', port=22, credentialsId='ssh_jenkins', jvmOptions='', javaPath='', prefixStartSlaveCmd='', suffixStartSlaveCmd='', launchTimeoutSeconds=210, maxNumRetries=10, retryWaitTime=15, sshHostKeyVerificationStrategy=hudson.plugins.sshslaves.verifiers.NonVerifyingKeyVerificationStrategy, tcpNoDelay=true, trackCredentials=true} [07/15/19 09:53:34] [SSH] Opening SSH connection to dhp-dev-app-01.sq-cloud.local:22.[07/15/19 09:53:35] [SSH] WARNING: SSH Host Keys are not being verified. Man-in-the-middle attacks may be possible against this connection.ERROR: SSH authentication failedjava.lang.ClassNotFoundException: com.trilead.ssh2.crypto.cipher.BlockCipher at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:555) at java.lang.ClassLoader.loadClass(ClassLoader.java:357)Caused: java.lang.NoClassDefFoundError: com/trilead/ssh2/crypto/cipher/BlockCipher at com.cloudbees.jenkins.plugins.sshcredentials.impl.BasicSSHUserPrivateKey.getPrivateKeys(BasicSSHUserPrivateKey.java:174) at com.cloudbees.jenkins.plugins.sshcredentials.SSHAuthenticator.getPrivateKeys(SSHAuthenticator.java:484) at com.cloudbees.jenkins.plugins.sshcredentials.impl.TrileadSSHPublicKeyAuthenticator.doAuthenticate(TrileadSSHPublicKeyAuthenticator.java:107) at com.cloudbees.jenkins.plugins.sshcredentials.SSHAuthenticator.authenticate(SSHAuthenticator.java:436) at com.cloudbees.jenkins.plugins.sshcredentials.SSHAuthenticator.authenticate(SSHAuthenticator.java:473) at hudson.plugins.sshslaves.SSHLauncher.openConnection(SSHLauncher.java:1213) at hudson.plugins.sshslaves.SSHLauncher$2.call(SSHLauncher.java:846) at hudson.plugins.sshslaves.SSHLauncher$2.call(SSHLauncher.java:833) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)[07/15/19 09:53:35] [SSH] Authentication failed.Authentication failed.[07/15/19 09:53:35] Launch failed - cleaning up connection[07/15/19 09:53:35] [SSH] Connection closed.

Add Comment

[o.v.nenashev@gmail.com (JIRA)]

Oleg Nenashev commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

https://github.com/jenkinsci/jenkins/pull/4111 and https://github.com/jenkinsci/ssh-cli-auth-module/pull/10 are needed to address the issue AFAICT

Add Comment

[o.v.nenashev@gmail.com (JIRA)]

Oleg Nenashev assigned an issue to Oleg Nenashev

Jenkins / JENKINS-58483

Jenkins 2.185 won't connect to SSH agents

Change By: Oleg Nenashev Assignee: Ivan Fernandez Calvo Oleg Nenashev

Add Comment

[o.v.nenashev@gmail.com (JIRA)]

Oleg Nenashev started work on JENKINS-58483

Change By: Oleg Nenashev Status: Open In Progress

Add Comment

[o.v.nenashev@gmail.com (JIRA)]

Oleg Nenashev updated JENKINS-58483

Jenkins / JENKINS-58483 Jenkins 2.185 won't connect to SSH agents

Change By: Oleg Nenashev Status: In Progress Review

Add Comment

[o.v.nenashev@gmail.com (JIRA)]

Oleg Nenashev commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents Apparently there was a regression in SSH CLI Auth Module which was not discovered in reviews. https://github.com/jenkinsci/ssh-cli-auth-module/pull/14 should fix it

Add Comment

[o.v.nenashev@gmail.com (JIRA)]

Oleg Nenashev commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents

Whomever needs a test build of the fix, it is here: https://repo.jenkins-ci.org/incrementals/org/jenkins-ci/main/jenkins-war/2.186-rc28479.a2d1d0c725fe/ . Downgrade is still recommended for production use. I hope we will rollout an out-of-order weekly release by EoD tomorrow, see https://groups.google.com/forum/#!topic/jenkinsci-advisories/lWw746kv4Kg

Add Comment

[cleclerc@cloudbees.com (JIRA)]

Cyrille Le Clerc updated an issue

Jenkins / JENKINS-58483

Jenkins 2.185 won't connect to SSH agents

Change By: Cyrille Le Clerc { quote noformat } ERROR: Unexpected error in launching a agent. This is probably a bug in Jenkins.ERROR: Unexpected error in launching a agent. This is probably a bug in Jenkins.java.lang.IllegalArgumentException: Unknown server host key algorithm 'ssh-ed25519' at com.trilead.ssh2.transport.KexManager.checkServerHostkeyAlgorithmsList(KexManager.java:316) at com.trilead.ssh2.Connection.setServerHostKeyAlgorithms(Connection.java:1289) at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:412) at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:406)

at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

at java.lang.Thread.run(Thread.java:748)[07/14/19 22:07:00] Launch failed - cleaning up connection[07/14/19 22:07:00] [SSH] Connection closed. { quote noformat } Plugins were updated three days ago and a restart of 2.184 went fine. Now I just updated to 2.185 and got the quoted "Unknown server host key algorithm 'ssh-ed25519'" messages with all agents (Linux and MacOS) offline. Probably something related to the recent 'trilead' changes?   Workaround: Downgrade to previous version ('apt install jenkins=2.184').

Add Comment

[cleclerc@cloudbees.com (JIRA)]

Cyrille Le Clerc updated an issue

Jenkins / JENKINS-58483 Jenkins 2.185 won't connect to SSH agents Change By: Cyrille Le Clerc

{noformat}

ERROR: Unexpected error in launching a agent. This is probably a bug in Jenkins.ERROR: Unexpected error in launching a agent. This is probably a bug in Jenkins.

java.lang.IllegalArgumentException: Unknown server host key algorithm 'ssh-ed25519' at com.trilead.ssh2.transport.KexManager.checkServerHostkeyAlgorithmsList(KexManager.java:316) at com.trilead.ssh2.Connection.setServerHostKeyAlgorithms(Connection.java:1289) at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:412) at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:406) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)[07/14/19 22:07:00] Launch failed - cleaning up connection[07/14/19 22:07:00] [SSH] Connection closed.

{noformat}

Plugins were updated three days ago and a restart of 2.184 went fine. Now I just updated to 2.185 and got the quoted "Unknown server host key algorithm 'ssh-ed25519'" messages with all agents (Linux and MacOS) offline. Probably something related to the recent 'trilead' changes?   Workaround: Downgrade to previous version ('apt install jenkins=2.184').

Add Comment

[o.v.nenashev@gmail.com (JIRA)]

Oleg Nenashev updated JENKINS-58483

To be released in 2.186 today, unless something goes really wrong

Jenkins / JENKINS-58483 Jenkins 2.185 won't connect to SSH agents

Change By: Oleg Nenashev Status: In Review Fixed but Unreleased Resolution: Fixed

Add Comment

[o.v.nenashev@gmail.com (JIRA)]

Oleg Nenashev updated JENKINS-58483

Jenkins / JENKINS-58483 Jenkins 2.185 won't connect to SSH agents

Change By: Oleg Nenashev Status: Fixed but Unreleased Resolved Released As: Jenkins 2.186

Add Comment

[bharatbhatia18@gmail.com (JIRA)]

Bharat Bhatia commented on JENKINS-58483

Re: Jenkins 2.185 won't connect to SSH agents 2.186 fixed this issue

Add Comment