Devops-Clarification/ref at master · pandian3k/Devops-Clarification · GitHub

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yum update
sudo su -

--------------open jdk-------------------------------
1 yum install java-11-openjdk java-11-openjdk-devel
# export JAVA_HOME=$(dirname $(dirname $(readlink $(readlink $(which javac)))))
export PATH=\$PATH:\$JAVA_HOME/bin
export CLASSPATH=.:\$JAVA_HOME/jre/lib:\$JAVA_HOME/lib:\$JAVA_HOME/lib/tools.jar
EOF

chmod +x /etc/profile.d/java11.sh
--------------jenkins-------------------------------
  3  source /etc/profile.d/java11.sh
    4  java --version
    5  yum install wget git -y
    6  wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins-ci.org/redhat/jenkins.repo
    7  rpm --import https://jenkins-ci.org/redhat/jenkins-ci.org.key
    8  yum install jenkins
    9  systemctl start jenkins.service
   10  systemctl status jenkins.service
   11  cat /var/lib/jenkins/secrets/initialAdminPassword

  [ sudo vim /etc/sysconfig/jenkins  // for port changing  ]
----------------------------------------maven--------------------------------------
12  sudo yum install maven
13  sudo vi /etc/profile.d/maven.sh

export M2_HOME="${M2_HOME:-/usr/share/maven}"
export JAVA_HOME; $M2_HOME/bin/mvn

14  chmod +x /etc/profile.d/maven.sh
   15  source /etc/profile.d/maven.sh
   16  mvn --version
     17  which git
--------------------------------------tomcat--------------------------------------

   18  cd /opt/
   19  wget http://apachemirror.wuchna.com/tomcat/tomcat-8/v8.5.46/bin/apache-tomcat-8.5.46.tar.gz
   20  ls
   21  tar -xvf apache-tomcat-8.5.46.tar.gz
   22  ls
   23  cd apache-tomcat-8.5.46
   24  ls
   25  cd bin/
   26  ls
   27  ll
   28  chmod +x shutdown.sh startup.sh
   29  ll
   30  ln -s /opt/apache-tomcat-8.5.46/bin/startup.sh /usr/local/bin/tomcatup
   31  ln -s /opt/apache-tomcat-8.5.46/bin/shutdown.sh /usr/local/bin/tomcatdown
   32  tomcatup
   33  cd ..
   34  cd conf/
   35  ls
   36  vi server.xml  // change the port number of tomcat webserver

        Connector port="8880" protocol="HTTP/1.1"

   37  tomcatdown
   38  tomcatup
   39  ls
   40  vi tomcat-users.xml // add user with password and give roles admin-gui,manager-gui,manager-script
      <user username="admin" password="admin" roles="admin-gui,manager-gui,manager-script"/>

   41  tomcatdown
   42  tomcatup
   43  find / -name context.xml
   44  vi /opt/apache-tomcat-8.5.46/webapps/host-manager/META-INF/context.xml  // comment using <!-- open and close --> in below location
      <!--<Valve className="org.apache.catalina.valves.RemoteAddrValve"
            allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" />-->

   45  vi /opt/apache-tomcat-8.5.46/webapps/manager/META-INF/context.xml  // comment using <!-- open and close --> in below location
      <!--<Valve className="org.apache.catalina.valves.RemoteAddrValve"
            allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" />-->

   46  tomcatdown
   47  tomcatup