Add auto update script

[Molkobain]

Base information

Question	Answer
Related to a SourceForge thread / Another PR / Combodo ticket?	No
Type of change?	Enhancement

Objective (enhancement)

Ease update of the Docker environment by automatically

• Retrieving sources files
• Deploying new/updated default conf. files
• Copying new env. variables from .env to .env.local
• Rebuilding / restarting containers

Ultimatly it should also work for non technical people who downloaded a zip from this repo instead of cloning it. The code is ready but it's commented until we make the repo public.

Why not use a token to connect to the private repo?
Because people who can make a token have a GitHub account, which mean they are propably a technical person, which can clone it. The zip method is made for functional people who don't necessarily have a GitHub account.

Proposed solution (bug and enhancement)

• Add a auto-update.sh script at the root of the project
• When executing the script it checks what kind of installation it is:
  • Git clone: It pull latest changes from the remote
  • Simple folder: It retrieves the latest release on GitHub
• Then it updates the .env.local file with variables from .env that are not already in it
• Then it deploys default configuration files to $CONF_FOLDER
• Then it optionnally rebuilds / restarts the containers

guillaume@PC-GUILLAUME:/docker_environment$ ./auto-update.sh
You are about to update the Docker Environment located at '/docker_environment'.
Environment variables loaded from .env.local.
Do you want to proceed? (y/n) [y] 

+------------------------------+
| Step 1/4 Update source files |
+------------------------------+
Git clone detected, updating it via git pull...
Already up to date.
Update complete.

+--------------------------------------------------------------+
| Step 2/4 Synchronize .env.local with new variables from .env |
+--------------------------------------------------------------+
Looking for variables that are not already in .env.local...
Added FOO_VAR to .env.local
Added BAR_VAR to .env.local
Synchronization complete.

+---------------------------------------------+
| Step 3/4 Deploy default configuration files |
+---------------------------------------------+
Copying files from 'build/default_configuration' to ./conf
Deployment complete.

+-----------------------------------------+
| Step 4/4 Rebuild and restart containers |
+-----------------------------------------+
Do you want to rebuild and restart the Docker containers now? (y/n) [y] n
Rebuild and restart skipped. Please remember to manually rebuild and restart your Docker containers to apply the updates.

Update and deployment successful!

Checklist before requesting a review

• I have performed a self-review of my code
• I have tested all changes I made on an iTop instance
• Would a unit test be relevant and have I added it?
• Is the PR clear and detailed enough so anyone can understand without digging in the code?

Checklist of things to do before PR is ready to merge

• Check with the team what should be added / fixed before making the repo public
• Convince Denis to make this repo public 😁

[bdalsass]

Great ! But i don't understand the modifications on addons/docker_scripts script files.

[Molkobain]

Great ! But i don't understand the modifications on addons/docker_scripts script files.

Files were not executable on my environment, so I added the x flag, but I can revert it as I'm not using it after all.