How to install a plugin in Jenkins manually

Question

Installing a plugin from the Update center results in:

Checking internet connectivity Failed to connect to http://www.google.com/. Perhaps you need

Answer 1

If you use Docker, you should read this file: https://github.com/cloudbees/jenkins-ci.org-docker/blob/master/plugins.sh

Example of a parent Dockerfile:

FROM jenkins
COPY plugins.txt /plugins.txt
RUN /usr/local/bin/plugins.sh /plugins.txt

plugins.txt

:
: