jenkins server dockerfile

Dockerfile

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+# Start from the official Jenkins image
+FROM jenkins/jenkins:jdk21
+
+# Switch to the root user to install tools or make any necessary modifications
+USER root
+
+# Expose the desired port
+EXPOSE 7860
+
+# Set the environment variable for Jenkins to listen on the custom port
+ENV JENKINS_OPTS="--httpPort=7860"
+
+# Switch back to the jenkins user
+USER jenkins
+
+# Run Jenkins
+CMD ["/usr/local/bin/jenkins.sh"]