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Install Jenkins on MacOS Mojave Version 10.14.6

Jenkins is a free and open source automation server. Jenkins helps to automate the non-human part of the software development process, with continuous integration and facilitating technical aspects of continuous delivery. To install Jenkins on MacOS follow below steps:

Step 1: Download Jenkins .war file from this location

Step 2: Copy to the directory of your choice. I am copying from download directory to document directory.

$ cp  ~/Downloads/jenkins.war ~/Documents/

Step 3: Type below command

$ java -jar jenkins.war

 If you get error related to future version use below command instead

$ java -jar jenkins.war  --enable-future-java

Error Snapshot

Mar 06, 2020 12:15:03 AM Main verifyJavaVersion
SEVERE: Running with Java class version 56 which is not in the list of supported versions: [52, 55]. Run with the --enable-future-java flag to enable such behavior. See https://jenkins.io/redirect/java-support/
java.lang.UnsupportedClassVersionError: 56.0
	at Main.verifyJavaVersion(Main.java:174)
	at Main.main(Main.java:142)

Jenkins requires Java versions [8, 11] but you are running with Java 12 from /Library/Java/JavaVirtualMachines/jdk-12.0.2.jdk/Contents/Home
java.lang.UnsupportedClassVersionError: 56.0
	at Main.verifyJavaVersion(Main.java:174)
	at Main.main(Main.java:142)

Step 4: Password will be generated in Terminal or inside file mentioned in terminal

Step 5: Open URL http://127.0.0.1:8080/ In your case port may be different or you can install on different port if 8080 is busy.

Step 6: Enter Admin Password and continue, you can copy this from terminal or file mentioned in terminal.

Step 7: Select Install Suggested Plugin 

Wait for installation to finish.

Step 8: Create First Admin user or Continue as Admin

Step 9: Change instance configuration if needed and click save and finish.

Step 10: Click start using Jenkins.

Video Tutorial

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