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Since Jenkins is a Java application, the first step is to install Java. Update the package index and install the Java 8 OpenJDK package with the following commands
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sudo apt-get update
sudo apt install openjdk-8-jdk |
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Step 1: First, in order to ensure the downloads are valid, add the GPG key for the official Docker repository to your system
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curl -s https://apt.dockerproject.org/gpg | sudo apt-key add
apt-key fingerprint 58118E89F3A912897C070ADBF76221572C52609D |
step Step 2: Add the Docker repository to APT sources
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sudo
add-apt-repository "deb https://apt.dockerproject.org/repo ubuntu-$(lsb_release -cs) main" |
step Step 3: Next, update the package database with the Docker packages from the newly added repo
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sudo apt-get update |
Step 4 : Make sure you are about to install from the Docker repo instead of the default Ubuntu 16.04 (xenial):
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sudo apt-cache policy docker-engine |