Nextcloud External Storage and Apps

 

This post and video go through how to add external storage in Nextcloud and introduces the wide number of applications that can be used to tailor the functionality of Nextcloud. 

For the external storage, the example is S3 object storage from a Minio container. Minio is a fantastic project that allows for locally hosted S3 API equipped storage. It's also nice because it is quite easy to start and get running, particularly on Docker. 

The command I used to make the Minio test container is below:
sudo docker run -it --name minios3 -p 9000:9000 -p 9001:9001 minio/minio server /data

*Update: Minio's latest image (tested 4/2022) needs to define the console port or it tries to auto find a port that was a bit hit or miss for me.
Revised:

sudo docker run -it --name=miniotest -p 9000:9000 -p 9001:9001 minio/minio server /data --console-address ":9001"

I did need to make some cuts in the video which is why the mouse jumps in a couple of places. Most notably, I initially had the wrong IP address of the Minio instance. This was essentially because in the test environment both containers were running on the same system and couldn't connect using the host IP. External systems wouldn't have had that issue. Around minute 7:25 the change will show moving from the host IP to the actual IP of the container. 

In more detail:

Docker, Podman, and other container management tools assign IP addresses to each container service. When running as a group, say if using a pod and Kubernetes, or running the containers together with Docker Compose, the containers are part of a single network and can identify each other by the service name. 

In this example, the containers were created separately, and being on the same host where unable to reach each other using the address I provided. Changing to the Minio specific IP was all that was needed, but as this was out of scope for the video - and honestly not something that would normally come up, so I chose to omit the debugging.

Some more information and resources about both Nextcloud and Minio are below.

Nextcloud Docker

Minio

Minio Quickstart

Minio Docker

Creating a web application with a MongoDB backend and Docker

This is a bit of a POC that turned into a project.

I was playing with MongoDB to create a front-end that would store data in a user friendly way. I didn't want to take on things like WordPress or others, and had an idea for a note taking application that could be on-prem, and put teams or catalogs first with grouping.

I think there is quite a bit more that could be done, like adding reminders/due dates to the posts/notes and adding more management to groups so new authors can add more people to a project/group. For now this is being used to demonstrate the capabilities of PHP with MongoDB.

A killer feature in MongoDB is the ability for it to not need to be primed in anyway. This feature allows for this app install using Docker to exist. In a traditional/relational database a user needs to setup the database and table structure in order for data to be inserted. With NoSQL/MongoDB you can just point an app at the DB and with the correct credentials start adding and editing a whole DB in the service itself. This is what I do in the initial login screen. I check if the DB and admin exist, and if not, they get automatically populated so a user on a completely fresh install can just start using the application. 

Currently this application is far from perfect, but I hope it helps users get an idea of what an be done using PHP, HTML, CSS, and MongoDB together. I also hope it can be useful, and if anyone requires additional assistance, please feel free to leave comments on the GitHub page. I am not at the caliber of a professional open source developer, and have limited time, but I am interested in the feedback, and willing to assist as I can to further promote usage of the project.

I hope this can be a useful project either for internal team collaboration or simply as reference code for other users. The code is published with the permissible Apache 2.0 license (same as Apache and MongoDB that it builds off).

Notes:

Source code is here: https://github.com/JoeMrCoffee/OurNoteOrganizer

A word on TinyMCE

TinyMCE is an external text editor which is used to help enhance the ease for writing and editing posts. It is an external tool that requires connectivity to external networks in order to function. For environments that do not have external Internet connectivity a standard 'textarea' without rich formatting is employed.

As this project is made to be hosted on any on-prem environment, there is no TinyMCE API key provided or registered. Users can create their own keys based on their domains and needs. To remove the notification about getting started, users can follow the quick steps, create their own API key, and add it to line 8 of the newpost.php file.

More information on TinyMCE and getting started:

https://www.tiny.cloud/

https://www.tiny.cloud/docs/quick-start/