I've seen problems in the past where I needed to generate the private key /
public key pair on the machine that would be using the key.  When you
created the private key, did you run ssh-keygen on the Windows computer
that is using the key?  If not, you might try that.

On Wed, Apr 10, 2019 at 11:23 AM Venkatapathi Jaligama <[email protected]>
wrote:

> Hello Mark,
> Thank you for you prompt response, I have already tested this scenario
> also removed all the jeys from windows slave and only use the jenkins
> credentials still does not work, I generated new keys and added the private
> key in the jenkins credentials and public key in Gitlab still same issue.
> Could you think of anything else.
>
> Thanks,
> Venkat
>
> On Wed, Apr 10, 2019 at 11:43 AM Mark Waite <[email protected]>
> wrote:
>
>> Compare the contents of the private key definition in the Jenkins
>> credentials UI with the private key that is being used on the Windows
>> agent.  If the key is incorrectly defined in the Jenkins credentials, that
>> might cause the problem you're seeing.
>>
>> Move (or hide) all other private keys on the Windows agent to be sure
>> that your successful interactive test was not using a different private key
>> than the private key used in the Jenkins credential.
>>
>> On Wed, Apr 10, 2019 at 3:47 AM <[email protected]> wrote:
>>
>>> Hello Users,
>>>
>>> I have Jenkins with master slave configuration, I have linux slaves and
>>> windows slaves
>>> I am unable to use the Gitlab  SSH credentials on Windows Slave
>>> Fails on scm checkout, The scm checkout works fine for the linux slaves
>>> To test the id_rsa key, I put the id_rsa in .ssh of home directory  and
>>> do git clone, it works fine, but somehow from git credentials it seem to
>>> have a problem
>>> Is there a workaround for this issue any help is very much appreciated
>>>
>>> using credential 2090ffbd-ddc3-45a9-adfb-e9c0e5ca4c75
>>> Wiping out workspace first.
>>> Cloning the remote Git repository
>>> Cloning repository ssh://[email protected]/xx.git
>>>  > git init 
>>> E:\workspace\Main_Build_master-HAJ7MPMVYIUEWROZ6RHLXJYVT3JUCE7ZDT7PHAOWUKJQYMDSW5KQ
>>>  # timeout=10
>>> Fetching upstream changes from ssh://[email protected]/xx.git
>>>  > git --version # timeout=10
>>> using GIT_SSH to set credentials Jenkins private ssh key
>>>  > git fetch --tags --progress ssh://[email protected]/xx.git 
>>> +refs/heads/*:refs/remotes/origin/* # timeout=7
>>> ERROR: Error cloning remote repo 'origin'
>>> hudson.plugins.git.GitException: Command "git fetch --tags --progress 
>>> ssh://[email protected]/xx.git +refs/heads/*:refs/remotes/origin/*" 
>>> returned status code 128:
>>> stdout:
>>> stderr: Load key 
>>> "E:\\workspace\\Main_Build_master-HAJ7MPMVYIUEWROZ6RHLXJYVT3JUCE7ZDT7PHAOWUKJQYMDSW5KQ@tmp\\ssh8872120221702825356.key":
>>>  invalid format
>>> Permission denied, please try again.
>>> Permission denied, please try [email protected]/xx.git: Permission 
>>> denied (publickey,gssapi-keyex,gssapi-with-mic,password).
>>> fatal: Could not read from remote repository.
>>>
>>> Please make sure you have the correct access rights
>>> and the repository exists.
>>>
>>>     at 
>>> org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2002)
>>>     at 
>>> org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1721)
>>>     at 
>>> org.jenkinsci.plugins.gitclient.CliGitAPIImpl.access$300(CliGitAPIImpl.java:72)
>>>     at 
>>> org.jenkinsci.plugins.gitclient.CliGitAPIImpl$1.execute(CliGitAPIImpl.java:405)
>>>     at 
>>> org.jenkinsci.plugins.gitclient.CliGitAPIImpl$2.execute(CliGitAPIImpl.java:614)
>>>     at 
>>> org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$1.call(RemoteGitImpl.java:153)
>>>     at 
>>> org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$1.call(RemoteGitImpl.java:146)
>>>     at hudson.remoting.UserRequest.perform(UserRequest.java:212)
>>>     at hudson.remoting.UserRequest.perform(UserRequest.java:54)
>>>     at hudson.remoting.Request$2.run(Request.java:369)
>>>     at 
>>> hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
>>>     at java.util.concurrent.FutureTask.run(Unknown Source)
>>>     at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
>>>     at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
>>>     at hudson.remoting.Engine$1.lambda$newThread$0(Engine.java:93)
>>>     at java.lang.Thread.run(Unknown Source)
>>>     Suppressed: hudson.remoting.Channel$CallSiteStackTrace: Remote call to 
>>> JNLP4-connect connection from 10.171.1.123/10.171.1.123:1035
>>>             at 
>>> hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1741)
>>>             at 
>>> hudson.remoting.UserRequest$ExceptionResponse.retrieve(UserRequest.java:357)
>>>             at hudson.remoting.Channel.call(Channel.java:955)
>>>             at 
>>> org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler.execute(RemoteGitImpl.java:146)
>>>             at sun.reflect.GeneratedMethodAccessor280.invoke(Unknown Source)
>>>             at 
>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>>             at java.lang.reflect.Method.invoke(Method.java:498)
>>>             at 
>>> org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler.invoke(RemoteGitImpl.java:132)
>>>             at com.sun.proxy.$Proxy94.execute(Unknown Source)
>>>             at hudson.plugins.git.GitSCM.retrieveChanges(GitSCM.java:1152)
>>>             at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1192)
>>>             at 
>>> org.jenkinsci.plugins.workflow.steps.scm.SCMStep.checkout(SCMStep.java:113)
>>>             at 
>>> org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:85)
>>>             at 
>>> org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:75)
>>>             at 
>>> org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1$1.call(AbstractSynchronousNonBlockingStepExecution.java:47)
>>>             at hudson.security.ACL.impersonate(ACL.java:290)
>>>             at 
>>> org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1.run(AbstractSynchronousNonBlockingStepExecution.java:44)
>>>             at 
>>> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
>>>             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)
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
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>>
>>
>> --
>> Thanks!
>> Mark Waite
>>
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-- 
Thanks!
Mark Waite

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