Following the official guides:
- https://wiki.jenkins-ci.org/display/JENKINS/Installing+Jenkins+on+Red+Hat+distributions
- http://pkg.jenkins-ci.org/redhat-stable/
We tried to install Jenkins using the RPM repositories.
sudo yum install java -y; sudo wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo; sudo rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key; sudo yum install jenkins -y;
Unfortunately, that resulted in an error:
warning: /var/cache/yum/x86_64/7/jenkins/packages/jenkins-2.19.2-1.1.noarch.rpm: Header V4 DSA/SHA1 Signature, key ID d50582e6: NOKEY Public key for jenkins-2.19.2-1.1.noarch.rpm is not installed
Apparently, sudo rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key; failed silently and it did not import the key.
To verify, we executed rpm -qa gpg-pubkey* to display a list of all keys installed for RPM verification. From that list we wanted to see if any of the keys was the one needed by jenkins which should end with the value d50582e6. Since none of them matched, we tried to manually re-import it which failed again.
Our Solution
Our solution, although ugly, was to disable PGP verification in the file /etc/yum.repos.d/jenkins.repo.
[jenkins] name=Jenkins-stable baseurl=http://pkg.jenkins.io/redhat-stable gpgcheck=0
That was enough to allow us to install the package using:
sudo yum install jenkins -y;
Finally, we started jenkins using sudo service jenkins start;.
Logs from failed installation
[bytefreaks@localhost ~]$ sudo yum install jenkins -y [sudo] password for bytefreaks: Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.coreix.net * extras: mirrors.coreix.net * updates: mirrors.coreix.net Resolving Dependencies --> Running transaction check ---> Package jenkins.noarch 0:2.19.2-1.1 will be installed --> Finished Dependency Resolution Dependencies Resolved ======================================================================================================================================================================================================================================= Package Arch Version Repository Size ======================================================================================================================================================================================================================================= Installing: jenkins noarch 2.19.2-1.1 jenkins 66 M Transaction Summary ======================================================================================================================================================================================================================================= Install 1 Package Total size: 66 M Installed size: 67 M Downloading packages: warning: /var/cache/yum/x86_64/7/jenkins/packages/jenkins-2.19.2-1.1.noarch.rpm: Header V4 DSA/SHA1 Signature, key ID d50582e6: NOKEY Public key for jenkins-2.19.2-1.1.noarch.rpm is not installed
This post is also available in: Greek
