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+FROM jenkins/jenkins:lts-jdk11
+USER root
+RUN apt update && \
+    apt install -y --no-install-recommends openssh-client vim build-essential gnupg curl cmake libboost* libpaho* ca-certificates apt-transport-https && \
+    curl -sSfL https://apt.octopus.com/public.key | apt-key add - && \
+    sh -c "echo deb https://apt.octopus.com/ stable main > /etc/apt/sources.list.d/octopus.com.list" && \
+    apt update && apt install -y octopuscli
+RUN echo "jenkins ALL=NOPASSWD: ALL" >> /etc/sudoers
+USER jenkins
+
diff --git b/README.md a/README.md
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+Explanation on usage:
+If ‘Type: ‘ is in front of it, that is a command that should be put on the commandline.
+
+OSDev Jenkins setup:
+
+192.168.1.220 (curie)
+Fedora 35 server
+ Go to the directory where the Dockerfile is located (usually /root) as root or import from git.
+
+Dockerfile:
+FROM jenkins/jenkins:lts-jdk11
+USER root
+RUN apt update && \
+    apt install -y --no-install-recommends openssh-client build-essential gnupg curl cmake libboost* libpaho* ca-certificates apt-transport-https && \
+    curl -sSfL https://apt.octopus.com/public.key | apt-key add - && \
+    sh -c "echo deb https://apt.octopus.com/ stable main > /etc/apt/sources.list.d/octopus.com.list" && \
+    apt update && apt install -y octopuscli
+RUN echo "jenkins ALL=NOPASSWD: ALL" >> /etc/sudoers
+USER jenkins
+
+
+Setting up the docker image:
+Type: docker build .
+
+copy the hexstring behind “Succesfully built [hexstring]” and past the hexstring behind the following command:
+
+Type: docker run -d --name=osdev_jenkins -p 8080:8080 -p 50000:50000 --restart=on-failure [hexstring]
+
+type: docker ps -a
+to check if the docker container is made, up and running.
+
+Log into the docker container:
+Type: docker exec -it osdev_jenkins bash
+
+Type: cd
+Type: ssh-keygen (to create the private and public key pair for ssh connectivity)
+(choice to put in passphrase, up to you, but need to be remembered for the ssh connectivity of jenkins to other applications)
+
+copy the content of id_rsa.pub to gitlab user jenkins as public key.
+Now to establish a connection and verify the host key, do the following:
+Type: cd
+Type: git clone git@gitlab.osdev.nl:open_source/mqtt-cpp.git
+Type: yes
+Type: rm -rf mqtt-cpp
+
+Backend is now setup.
+Last thing to do is the following:
+Type: cat /var/jenkins_home/secrets/initialAdminPassword
+select and copy the result.
+
+######################################################################################
+Setting up jenkins frontend:
+
+go to 192.168.1.220:8080 OR office.osdev.nl:18080
+and follow the next steps to setup jenkins.
+
+First paste the initialAdminPassword result into the textbox and accept.
+
+Create an admin user:
+name: jenkins
+password: *jenkins password* (remember this one!)
+email: jenkins@osdev.nl
+
+Then go for the "Select which plugins to install" option and search for gitlab.
+Select it and begin installation.
+
+Extra plugins to install:
+- generic-webhook-trigger (only available AFTER the initial setup, so install first, find the plugin through “manage plugins” later and install)
+
+
+SSH credentials in Jenkins:
+create a user “jenkins” and go to “users” "jenkins" “credentials”
+Option: SSH connection with private key
+Description: gitlab_ssh
+
+copy the private key from the container.
+
+How to copy the private file content to jenkins frontend:
+docker exec -it osdev_jenkins bash
+cd .ssh
+cat id_rsa
+copy ALL content of the file
+
+In the gitlab_ssh configuration, find the private key header, select "enter directly" and paste the contents of the private keyfile
+
+
+Add a job:
+Description: mqtt-cpp_build
+GitLab Connection:
+select your gitlab_ssh connection.
+
+Building steps:
+execute shell script
+
+add the cursive text (without asterixes) to the script frame:
+
+step 1:
+
+*cd /var/jenkins_home/workspace/mqtt-cpp_build
+rm -rf mqtt-cpp*
+
+
+Now add another buildstep with a shell script:
+
+step 2:
+
+*git clone git@gitlab.osdev.nl:open_source/mqtt-cpp.git
+cd mqtt-cpp
+scripts/setup_submodules -i
+mkdir build
+cd build
+cmake ../
+make*
+