So I am working with Jenkins and I need to use the Jenkins CLI, but I cannot get the authentication figured out.
I was following their rather short description here: https://wiki.jenkins-ci.org/display/JENKINS/Jenkins+CLI which said I need to convert my .ppk file from Putty into openssh format. They link you to this post here How to convert SSH keypairs generated using PuttyGen(Windows) into key-pairs used by ssh-agent and KeyChain(Linux) and I followed those instructions and tried with the file it generated, but I end up with a file that is a single line and looks like:
ssh-rsa [KEY]
When I use this file with the Jenkins CLI I get this error:
Exception in thread "main" java.io.IOException: Invalid PEM structure, '-----BEGIN...' missing
at com.trilead.ssh2.crypto.PEMDecoder.parsePEM(PEMDecoder.java:138)
at com.trilead.ssh2.crypto.PEMDecoder.decode(PEMDecoder.java:313)
at hudson.cli.PrivateKeyProvider.loadKey(PrivateKeyProvider.java:143)
at hudson.cli.PrivateKeyProvider.loadKey(PrivateKeyProvider.java:126)
at hudson.cli.PrivateKeyProvider.readFrom(PrivateKeyProvider.java:107)
at hudson.cli.CLI._main(CLI.java:440)
at hudson.cli.CLI.main(CLI.java:387)
I am really not familiar with ssh keys at all and have been searching around for a while with no luck. Can anyone instruct me on how to get my .ppk file into the correct format to use with the Jenkins CLI? Thanks!