CentOs8 jenkinsをインストールする方法

## リポジトリを追加
sudo vi /etc/yum.repos.d/adoptopenjdk.repo

<編集>
[AdoptOpenJDK]
name=AdoptOpenJDK
baseurl=http://adoptopenjdk.jfrog.io/adoptopenjdk/rpm/centos/8/x86_64
enabled=1
gpgcheck=1
gpgkey=https://adoptopenjdk.jfrog.io/adoptopenjdk/api/gpg/key/public

## インストールリスト確認
dnf list adoptopenjdk*

## 11をインストール
sudo dnf -y install adoptopenjdk-11-hotspot.x86_64

sudo wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins-ci.org/redhat-stable/jenkins.repo
sudo rpm --import https://jenkins-ci.org/redhat/jenkins-ci.org.key

sudo yum install jenkins

sudo systemctl start jenkins
sudo systemctl enable jenkins

systemctl status jenkins

<出力結果>
● jenkins.service - LSB: Jenkins Automation Server
   Loaded: loaded (/etc/rc.d/init.d/jenkins; generated)
   Active: active (running) since Fri 2020-05-15 03:32:32 EDT; 41s ago
     Docs: man:systemd-sysv-generator(8)
  Process: 21681 ExecStop=/etc/rc.d/init.d/jenkins stop (code=exited, status=0/SUCCESS)
  Process: 21694 ExecStart=/etc/rc.d/init.d/jenkins start (code=exited, status=0/SUCCESS)
    Tasks: 39 (limit: 23983)
   Memory: 319.4M
   CGroup: /system.slice/jenkins.service
           mq21718 /etc/alternatives/java -Dcom.sun.akuma.Daemon=daemonized -Djava.awt.headless=true -DJENKINS_HOME=/var/lib/jenkins -jar /usr/lib/jenkins/jenkins.war --logfile=/var/log/jenkins/jen>

 5月 15 03:32:28 localhost.localdomain systemd[1]: Stopped LSB: Jenkins Automation Server.
 5月 15 03:32:28 localhost.localdomain systemd[1]: Starting LSB: Jenkins Automation Server...
 5月 15 03:32:28 localhost.localdomain runuser[21702]: pam_unix(runuser:session): session opened for user jenkins by (uid=0)
 5月 15 03:32:32 localhost.localdomain runuser[21702]: pam_unix(runuser:session): session closed for user jenkins
 5月 15 03:32:32 localhost.localdomain jenkins[21694]: Starting Jenkins [  OK  ]
 5月 15 03:32:32 localhost.localdomain systemd[1]: Started LSB: Jenkins Automation Server.

sudo cat /var/lib/jenkins/secrets/initialAdminPassword

<出力結果>
54a0151f1aac41049e06835b97e766ee