Add Laminar introduction installation

Guides/jenkins.md

@@ -1,10 +1,29 @@
-# Jenkins
+# Continuous Integration
 
-How to install and administrate Jenkins.
+Tools and tips.
 
-## Install
+## Laminar Ci
 
-### Java
+[Laminar official website](https://laminar.ohwg.net)
+
+### Configure Laminar
+
+Laminar installation automatically create a laminar user.
+
+To edit files in Laminar config folder (default `/var/lib/laminar/cfg/jobs`) without `sudo`, you can use the GNU/Linux group mecanism :
+
+```sh
+sudo usermod -a -G laminar jovian
+chmod -R sudo chmod -R g+w /var/lib/laminar/cfg/
+```
+
+## Jenkins
+
+How to install and administrate Jenkins. This tool is using Java, requiring a lot of memory and CPU resources. It is not recommanded to use it on Rasperry Pi, the UI is slow and unresponsive.
+
+### Install
+
+#### Java
 
 You need Java 8 or 11 if you have Jenkins above 2.164.
 
@@ -12,7 +31,7 @@ You need Java 8 or 11 if you have Jenkins above 2.164.
 sudo apt install openjdk-8-jre
 ```
 
-### Raspberry Pi
+#### Raspberry Pi
 
 [Jenkins doc : installation](https://jenkins.io/doc/book/installing/#debianubuntu)
 
@@ -29,7 +48,7 @@ Jenkins is now installed as a daemon and you should connect locally to it with a
 
 `192.168.0.40:8080`
 
-### HTTPS
+#### HTTPS
 
 The best way to secure _Jenkins_ is to use the proxy with _Apache_.
 
@@ -37,19 +56,19 @@ The best way to secure _Jenkins_ is to use the proxy with _Apache_.
 
 See the _JovianHttpd_ repository to see the template for configuration.
 
-## Integration
+### Integration
 
 Integrate Jenkins with other tools
 
-### Gogs
+#### Gogs
 
-#### Plugin
+##### Plugin
 
 Install `gogs-webhook` plugin.
 
 Documentation on [plugins.jenkins.io](https://plugins.jenkins.io/gogs-webhook).
 
-#### Add webhook on Gogs side
+##### Add webhook on Gogs side
 
 In the Gogs repository settings, add the _webhook_
 
@@ -57,7 +76,7 @@ In the Gogs repository settings, add the _webhook_
 
 Adapt job name.
 
-#### Private communication
+##### Private communication
 
 - Create a Jenkins account on Gogs
 - Generate an SSH key with `ssh-keygen`
@@ -65,30 +84,30 @@ Adapt job name.
 - Put SSH public key in Jenkins account on Gogs
 - On Gogs : Add Jenkins user with _read_ rights to any repository Jenkins has to build
 
-### Apache2 http server
+#### Apache2 http server
 
 How to deploy on a Httpd server.
 
-#### Grant _jenkins_ user
+##### Grant _jenkins_ user
 
 You have to set _jenkins_ user owner of the targeted folder.
 
-## Trouble shooting
+### Trouble shooting
 
-### Logs
+#### Logs
 
 In file `/var/log/jenkins/jenkins.log` 
 
-### Git describe
+#### Git describe
 
-To allow the command `git describe` to work, go to your job configuration and add an **Advanced Cloned Behoviours** and tick the _tags_ checkbox.
+To allow the command `git describe` to work, go to your job configuration and add an **Advanced Cloned Behaviours** and tick the _tags_ checkbox.
 
-## Configure
+### Configure
 
 Configuration parameters can be found at `/etc/default/jenkins`
 
-## Useful plugins
+### Useful plugins
 
-### Basic Branch strategy
+#### Basic Branch strategy
 
 Useful to build tags.