A Vagrantfile to build signle node virtual envirnment to learn about jenkins adminstration for CI/CD projects
vagrant_jenkins_lab/Vagrantfile : This Vagrantfile contains the information needed to create a centOS/7 virtual machine and install git_lab

Step 1 : Install virtual box (https://www.virtualbox.org)

Step 2 : Install vagrant (https://www.vagrantup.com)

Step 3 : Download and Vagrant file
git clone https://github.com/malyabee/vagrant_jenkins_lab.git or Downlaod https://github.com/malyabee/vagrant_jenkins_lab/archive/master.zip and unzip master file

Step 4 : starting virtual machines

   $ cd vagrant_jenkins_lab

   $ vagrant up

 cd vagrant_jenkins_lab

 vagrant ssh 

This Vagrant verified on Mac and Windows

open "http://localhost:8000/" url in your browser to see jenkins environment.

in webUI you need to enter password which is stored at /var/lib/jenkins/secrets/initialAdminPassword

This Vagrant based jenkins lab created based on https://www.vultr.com/docs/how-to-install-jenkins-on-centos-7

For other installations refer https://jenkins.io/doc/book/installing/

We can use following example code base to learn jenkings https://github.com/ravikiran-srini/springExample

Jenkins : -- Installation : https://www.youtube.com/watch?v=-0dkiteJEuE UserManagement and Roles : https://www.youtube.com/watch?v=jZOqcB32dYM

GitHub Tutorials : https://github.com/miztiik/DevOps-Demos/tree/master/setup-jenkins

https://github.com/miztiik/DevOps-Demos/tree/master/setup-jenkins-slave

Continuous Delivery –involves a manual trigger to production.

Continuous Deployment –involves automatic releases to production.

Continuous Integration – is usually the initial part of both Continuous Delivery and Deployment, involving the testing and building of any new or updated source code.

Python sample project :

Python References https://github.com/pypa/sampleproject

Build "Execute shell" commands

PYENV_HOME=$WORKSPACE/.sample1/

# Delete previously build virtualenv
if [ –d $PYENV_HOME ]; then
  rm –rf $PYENV_HOME
fi

# Create and install necessary packages
python3 -m venv $PYENV_HOME
source $PYENV_HOME/bin/activate
# pip install –r envs/req.txt
pip install --quiet nosexcover
pip install --quiet pylint
pip install --upgrade pip
pip install --quiet pytest
pip install --quiet wheel

 pip install --quiet $WORKSPACE/  # where your setup.py lives

python $WORKSPACE/setup.py sdist bdist_wheel
pytest -p no:cacheprovider

# nosetests --with-xcoverage --with-xunit --cover-package=myapp --cover-erase
# pylint -f parseable myapp/ | tee pylint.out

Notes to build python based jobs

http://www.alexconrad.org/2011/10/jenkins-and-python.html


https://chrigl.de/posts/2013/08/14/integration-of-pylint-into-jenkins.html