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  • Publish with ssh plugin does not work with openssh key

    https://issues.jenkins-ci.org/browse/JENKINS-57495?page=com.atlassian.jira.plugin.system.issuetabpanels%3Aall-tabpanel

    The publish over ssh plug does not accept a newly generated openssh (7.9-p1)

    jenkins@server-two ~ $ ssh-keygen -b 1024 -t rsa
    Generating public/private rsa key pair.
    Enter file in which to save the key (/home/jenkins/.ssh/id_rsa):
    /home/jenkins/.ssh/id_rsa already exists.
    Overwrite (y/n)? y
    Enter passphrase (empty for no passphrase):
    Enter same passphrase again:
    Your identification has been saved in /home/jenkins/.ssh/id_rsa.
    Your public key has been saved in /home/jenkins/.ssh/id_rsa.pub.
    The key fingerprint is:
    SHA256:Dxg/hh433DNdQxDGlnWsGMmTjHGT6cEn1dPs0VbczJI jenkins@server-two
    The key's randomart image is:
    +---[RSA 1024]----+
    | .B*@+OB|
    | .o^oE+%|
    | . o Bo=o|
    | * . .o....|
    | + S + . |
    | . + = o |
    | . . |
    | |
    | |
    +----[SHA256]-----+
    jenkins@server-two ~ $ cat ~/.ssh/id_rsa
    
    -----BEGIN OPENSSH PRIVATE KEY-----
    b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAlwAAAAdzc2gtcn
    NhAAAAAwEAAQAAAIEAtEuhS29xJQfHaJMexAlAVLf9wy2dHKh+EbXrD5DmpRq2PABjzZWK
    xvU/yvfCBpyMHaMLohMLhpUSqyKQd8a7h+6fLRPc51epviFhL6rFX/lqlWy4pnL0wq0a5I
    30tGXPjL8Qzc/pqHwRz8yUmA0RLOSdFgSvrBu6YA0jmTxL4ZsAAAIIb8CTnm/Ak54AAAAH
    c3NoLXJzYQAAAIEAtEuhS29xJQfHaJMexAlAVLf9wy2dHKh+EbXrD5DmpRq2PABjzZWKxv
    U/yvfCBpyMHaMLohMLhpUSqyKQd8a7h+6fLRPc51epviFhL6rFX/lqlWy4pnL0wq0a5I30
    tGXPjL8Qzc/pqHwRz8yUmA0RLOSdFgSvrBu6YA0jmTxL4ZsAAAADAQABAAAAgGj4w79U8i
    5aOhrD1ZzTuhXZTjEuRJRj8YrEPUjB19f3FnUW0QTodXVjYzH8UIZi7R1wSZyitAo2jzj+
    ldh258XA28b+qFMLPo4X0E6CWevSd6kVsub9I7JxwOeQXf26QgvOAcp3o4TIJIjg8LcVQU
    VdWBVPBJbebnpiLHCDJDb5AAAAQQCOldoy3U8NdOEXhh5U47BLZeMQT+KXWyfUzZ83uxRS
    UvKwL60AAc1fCuhi0G50rFBZDO1f4you3ZqYbxdI5CtIAAAAQQDqyDeMZ/0U+53Ox/BFeR
    Pw58F9KAjhCKYn3RMz9cUAs/NHvAnZP3o/YAANVSjHPpNnLfI7W4rughM8XroOivCPAAAA
    QQDEltdLfsCuItzcJXkMquojSK7TQlsONEcL7L4bozUWcCrkicjU24sj/U1rTlQpUC74yP
    out7NQioc/Yi7FmKw1AAAAEmplbmtpbnNAc2VydmVyLXR3bw==
    -----END OPENSSH PRIVATE KEY-----

    Use ssh-copy-id to copy the newly generated ssh key to the desired destination server.

    Navigate to Configure Jenkins

    Set the passphrase and path to key to blank.

    Set the key to the above text

    Set ssh server name, hostname, and remote directory as appropriate

    Click "Test Configuration".

    Expected behavior, the test either works, or tells me that it's unable to authenticate against the target server.

    Actual behavior:

    I get this message.

    Failed to connect or change directory
    jenkins.plugins.publish_over.BapPublisherException: Failed to add SSH key. Message [invalid privatekey: [B@d8d395a]
    

    Subsequent activation of the "Test Configuration" button give me the same message, but with a different hex code at the end.

    Activity

     
    jonesmzmeshppMichael Jones created issue - 2019-05-16 02:54
    gizmo15Boris Tassou added a comment - 2019-07-10 13:32

    Hi,

    I have the same issue. I generate a key with this method :

    ssh-keygen -t rsa -b 4096

    And i use ssh-copy-id :

    ssh-copy-id -i .ssh/id_rsa.pub jenkins@hakael.secu.loc

    If i made an ssh -i id_rsa jenkins@hakael.secu.loc, it's works but if i use the test in the configuration console, it failed, always.

    matkal93Adam slodowy added a comment - 2019-07-26 08:59

    The solution for me was to export my private key in different format using puttygen- look at description in https://stackoverflow.com/questions/2224066/how-to-convert-ssh-keypairs-generated-using-puttygen-windows-into-key-pairs-us

    ehooiTaehyung Lim added a comment - 2019-07-30 15:02

    I had the same issue and solved.

    The problem is private key file format.
    This is my private key header. This is from ssh-keygen on Macbook, not from puttygen.

    -----BEGIN OPENSSH PRIVATE KEY-----
    b3Blb....

    "BEGIN OPENSSH" and "b3Blb...." means the "newer OpenSSH format".
    Jenkins or plugin failed to read this format.

    If you want to make "older" OpenSSH format, try this.
    Or make your keys by using old ssh-keygen.

    ssh-keygen -t rsa -b 4096 -m PEM

    Your new private key should looks like this.

    -----BEGIN RSA PRIVATE KEY-----
    MIIE....

    ps. You can't use ed25519 algorithm. Because ed25519 needs newer format.

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  • 原文地址:https://www.cnblogs.com/wangmo/p/13024970.html
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