start a dedicated README.development

I've cloned these two git repos on my desktop and manually run `git pull`. This is certainly not ideal but good enough to re-setup the system anytime, which is something.

=== Setup of standalone tests.reproducible-builds.org for development

If you'd like to run tests.repoducible-builds.org without the rest of the jenkins set up, here are some necessary steps. Note that most of these steps are performed in the update_jdn.sh script, so if you have a test system it might be simpler to just run it.

Your clone of the jenkins git (https://salsa.debian.org/qa/jenkins.debian.net) will be referred to as $JENKINSGIT.

==== Dependencies, users, directories and files

Some dependencies:

----

sudo apt install python3 python3-psycopg2 python3-rpy2 python3-yaml sqlite3 dctrl-tools

----

Create a user jenkins for testing. Create the following directories:

----

sudo mkdir -p /var/lib/jenkins/userContent/reproducible/ /srv/reproducible-results/ /srv/workspace /schroots /chroots

----

Create the following symlinks:

----

ln -s $JENKINSGIT/bin /srv/jenkins/bin/ 

ln -s $JENKINSGIT/userContent/reproducible/static /var/lib/jenkins/userContent/reproducible/static/

----

Additional, give user jenkins write access to the root $JENKINSGIT directory and following directory trees:

* /srv/reproducible-results/...

* /var/lib/jenkins/...

* /srv/workspace/...

* $JENKINSGIT/userContent/...

* $JENKINSGIT/bin/...

==== Database

Get a recent copy of the database from:

----

wget https://tests.reproducible-builds.org/reproducible.sql.xz

----

The database is kept using PostgreSQL and initialised by running /srv/jenkins/bin/reproducible_db_maintenance.py manually as the jenkins user.

==== Websites scripts

The $JENKINSGIT/bin/reproducible_html_*.py and $JENKINSGIT/bin/reproducible_html_*.sh scripts produce the debian pages and you probably want to run all of them at least once. Below are the requirements for some scripts.

All webpages will be served out of /var/lib/jenkins/userContent/reproducible and you need to point a webserver to this directory. Build the reproducible dashboard for debian with the $JENKINSGIT/bin/reproducible_html_dashboard.sh, and navigate to <host>/debian/reproducible.html in your browser.

*Requirements for $JENKINSGIT/bin/reproducible_html_dashboard.sh*

Before running, create the following directories and files:

----

sudo mkdir /srv/reproducible-results/node-information/

for i in i386 amd64 arm64 armhf ; do touch /srv/reproducible-results/node-information/dummy_$i ; done

----

And run the following script as user jenkins:

----

$JENKINSGIT/bin/reproducible_html_repository_comparison.sh

----

*Requirements for $JENKINSGIT/bin/reproducible_html_notes.py*

This script construct pages that contain notes about the ongoing status and causes of nondeterminism for a package. These pages can be accessed at <host>/debian/notes/<package>_note.html

First, clone the notes git repo:

git clone https://salsa.debian.org/reproducible-builds/reproducible-notes

Create symlinks for the the files *packages.yml* and *issues.yml* in your $JENKINSGIT/bin/ directory.

// vim: set filetype=asciidoc:

Developing jenkins.debian.net

========================

:Author:           Holger Levsen

:Authorinitials:   holger

:EMail:            holger@layer-acht.org

:Status:           working, in progress

:lang:             en

:Doctype:          article

:License:          GPLv2

=== Setup of standalone tests.reproducible-builds.org for development

If you'd like to run tests.repoducible-builds.org without the rest of the jenkins set up, here are some necessary steps. Note that most of these steps are performed in the update_jdn.sh script, so if you have a test system it might be simpler to just run it.

Your clone of the jenkins git (https://salsa.debian.org/qa/jenkins.debian.net) will be referred to as $JENKINSGIT.

==== Dependencies, users, directories and files

Some dependencies:

----

sudo apt install python3 python3-psycopg2 python3-rpy2 python3-yaml sqlite3 dctrl-tools

----

Create a user jenkins for testing. Create the following directories:

----

sudo mkdir -p /var/lib/jenkins/userContent/reproducible/ /srv/reproducible-results/ /srv/workspace /schroots /chroots

----

Create the following symlinks:

----

ln -s $JENKINSGIT/bin /srv/jenkins/bin/ 

ln -s $JENKINSGIT/userContent/reproducible/static /var/lib/jenkins/userContent/reproducible/static/

----

Additional, give user jenkins write access to the root $JENKINSGIT directory and following directory trees:

* /srv/reproducible-results/...

* /var/lib/jenkins/...

* /srv/workspace/...

* $JENKINSGIT/userContent/...

* $JENKINSGIT/bin/...

==== Database

Get a recent copy of the database from:

----

wget https://tests.reproducible-builds.org/reproducible.sql.xz

----

The database is kept using PostgreSQL and initialised by running /srv/jenkins/bin/reproducible_db_maintenance.py manually as the jenkins user.

==== Websites scripts

The $JENKINSGIT/bin/reproducible_html_*.py and $JENKINSGIT/bin/reproducible_html_*.sh scripts produce the debian pages and you probably want to run all of them at least once. Below are the requirements for some scripts.

All webpages will be served out of /var/lib/jenkins/userContent/reproducible and you need to point a webserver to this directory. Build the reproducible dashboard for debian with the $JENKINSGIT/bin/reproducible_html_dashboard.sh, and navigate to <host>/debian/reproducible.html in your browser.

*Requirements for $JENKINSGIT/bin/reproducible_html_dashboard.sh*

Before running, create the following directories and files:

----

sudo mkdir /srv/reproducible-results/node-information/

for i in i386 amd64 arm64 armhf ; do touch /srv/reproducible-results/node-information/dummy_$i ; done

----

And run the following script as user jenkins:

----

$JENKINSGIT/bin/reproducible_html_repository_comparison.sh

----

*Requirements for $JENKINSGIT/bin/reproducible_html_notes.py*

This script construct pages that contain notes about the ongoing status and causes of nondeterminism for a package. These pages can be accessed at <host>/debian/notes/<package>_note.html

First, clone the notes git repo:

git clone https://salsa.debian.org/reproducible-builds/reproducible-notes

Create symlinks for the the files *packages.yml* and *issues.yml* in your $JENKINSGIT/bin/ directory.

// vim: set filetype=asciidoc: