Added Proper Docker Compose and .env.docker-setup files

[phil-flip]

Description

For a while now @svpernova09 and I have been planning on rewriting the Docker Docs so it uses Docker compose, instead of Docker run. That requires us to change some stuff in the repo. Like having a docker-compose.yml and .env.docker file which can be used by the user.

This Pr should help with getting less support inquiries in the Discord Docker channel and remove docker run from production deployments.

Thankies to @svpernova09 for helping me brainstorm about possible solutions and providing the health checks for the docker-compose.yml

Type of change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [x] This change requires a documentation update

How Has This Been Tested?

The updated article can be read in the docs. But I tested my setup, by running the following commands.

• Clone Repo
• Rename .env.docker to .env
• Change port in .env, if needed
• Run docker compose up -d and wait for startup
• Add Content
• Run docker compose down to remove deployment, but not the volumes
• Run docker compose up -d and wait for startup
• Check if content is still there
• Run docker compose down -v delete deployment and data

Checklist:

• [x] I have read the Contributing documentation available here: https://snipe-it.readme.io/docs/contributing-overview
• [x] I have formatted this PR according to the project guidelines: https://snipe-it.readme.io/docs/contributing-overview#pull-request-guidelines
• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation (Not yet merged, waiting for this PR to be merged first)
• [x] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes

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[what-the-diff[bot]]

PR Summary

• Introduction of a new .env.dev.docker file This new file holds various settings for fine-tuning the application, including those related to database setup, application settings, file storage, mail server, image library, backup policies, session management, security measures, cache operations, Redis configurations, AWS settings, login throttling, and miscellaneous ones.

• Alterations to .env.docker file The current .env.docker file has been updated to optimally configure the application for a production environment. The app now runs on port 8000. New parameters for the database root password and app settings that enable deletion of backups and data purging have been added. Alterations were also made to the database and Redis host settings.

• Addition of dev.docker-compose.yml file A new file to run the application in a development environment using Docker Compose has been added. It comprises services for the main application 'snipeit', database 'mariadb', 'redis' for in-memory data structure store, and 'mailhog' as a mail testing tool.

• Updates to docker-compose.yml file The primary Docker Compose file has been modified. Volumes have been added for improved data management. The main 'snipeit' service now uses a specific version of 'snipe-it' image. Restart policies have been established to maintain continuous service availability. Data storage for the application and database have been assigned to 'storage' and 'db_data' respectively. A health check function for our database service is now implemented for monitoring its performance. Finally, updates have been done to the environment variables. ``

[phil-flip]

Thankies for the compliments. ^^ I had a feeling that because of the upcoming release there are not going to be made a lot of changes to v6. Tho I would prefer to merge it now as it should make a difference, unless the application stack changes (different DB, other backend, etc...)

[snipe]

Thank you ❤️

[welcome[bot]]

Congrats on merging your first pull request! 🎉🎉🎉

[phil-flip]

@snipe Thank you for merging. Mind also merging the changes in the Docs?

[snipe]

Done :)