docker-flarum/README.md

# mondedie/docker-flarum

![logo](https://i.imgur.com/Bjrtbsc.png "logo")

### What is this ?

Simple forum software for building great communities. http://flarum.org/

### Features

- Lightweight & secure image
- Based on Alpine Linux with **nginx** and **PHP 7**
- Latest [Flarum Core](https://github.com/flarum/core) (v0.1.0-beta.7.2)
- MySQL/Mariadb driver
- OPCache extension configured

### Build-time variables

- **VERSION** = Version of flarum (default: *v0.1.0-beta.7*)

### Ports

- **8888**

### Volume

- **/flarum/app/assets** : Flarum assets directory
- **/flarum/app/extensions** : Flarum extension directory
- **/etc/nginx/conf.d** : Nginx location directory

### Environment variables

| Variable | Description | Type | Default value |
| -------- | ----------- | ---- | ------------- |
| **UID** | Flarum user id | *optional* | 991
| **GID** | Flarum group id | *optional* | 991
| **DEBUG** | Flarum debug mode | *optional* | false
| **FORUM_URL** | Forum URL | **required** | none
| **DB_HOST** | MariaDB instance ip/hostname | *optional* | mariadb
| **DB_USER** | MariaDB database username | *optional* | flarum
| **DB_NAME** | MariaDB database name | *optional* | flarum
| **DB_PASS** | MariaDB database password | **required** | none
| **DB_PREF** | Flarum tables prefix | *optional* | none
| **UPLOAD_MAX_SIZE** | The maximum size of an uploaded file | *optional* | 50M
| **PHP_MEMORY_LIMIT** | PHP memory limit | *optional* | 128M |
| **OPCACHE_MEMORY_LIMIT** | OPcache memory size in megabytes | *optional* | 128
| **LOG_TO_STDOUT** | Enable nginx and php error logs to stdout | *optional* | false

## Installation

#### 1 - Pull flarum image

```bash
# Pull from hub.docker.com :
docker pull mondedie/docker-flarum:0.1.0-beta.7.2-stable

# or build it manually :
docker build -t mondedie/docker-flarum https://github.com/mondediefr/flarum.git#master
```

#### 2 - Docker-compose.yml

```yml
version: "3"

services:
  flarum:
    image: mondedie/docker-flarum:0.1.0-beta.7.2-stable
    container_name: flarum
    environment:
      - FORUM_URL=http://flarum.local
      - DB_PASS=xxxxxx
    volumes:
      - /mnt/docker/flarum/assets:/flarum/app/assets
      - /mnt/docker/flarum/extensions:/flarum/app/extensions
      - /mnt/docker/flarum/nginx:/etc/nginx/conf.d
    depends_on:
      - mariadb

  mariadb:
    image: mariadb:10.1
    container_name: mariadb
    environment:
      - MYSQL_ROOT_PASSWORD=xxxxxx
      - MYSQL_DATABASE=flarum
      - MYSQL_USER=flarum
      - MYSQL_PASSWORD=xxxxxx
    volumes:
      - /mnt/docker/mysql/db:/var/lib/mysql
```

#### 3 - Run it

You need a reverse proxy to access flarum, this is not described here. You can use the solution of your choice (Traefik, Nginx, Apache, Haproxy, Caddy, H2O...etc).

```
docker-compose up -d
```

Fill out the installation form :

* Your admin password must contain at least **8 characters**.
* You can't use MariaDB **10.2** or **10.3** for the moment. More information on this issue [here](https://github.com/flarum/core/issues/1211).
* If you get an error 500 with _Something went wrong_ message, switch the `DEBUG` environment variable to `true` to see the actual error message in your browser.

![flarum-installation](http://i.imgur.com/e3Hscp4.png)

Click on **Install Flarum** and after few seconds the forum homepage should appear.

![flarum-home](http://i.imgur.com/6kH9iTV.png)

### Upgrade from v0.1.0-beta.6

:warning: Disable 3rd party extensions prior to upgrading.

```
docker pull mondedie/docker-flarum:0.1.0-beta.7.1-stable && docker-compose up -d
```

Navigate to `yourforum.com/admin`, enter your database password and update.

![flarum-update](https://images.mondedie.fr/udl8j4Ue/PueJSigV.png)

Remove and restart your container :

```
docker-compose stop flarum
docker-compose rm flarum
docker-compose up -d
```

### Install custom extensions

**Flarum extensions list :** https://packagist.org/search/?q=flarum-ext

#### Install an extension

```
docker exec -ti flarum extension require some/extension
```

#### Remove an extension

```
docker exec -ti flarum extension remove some/extension
```

#### List all extensions

```
docker exec -ti flarum extension list
```

### Custom error pages

To use custom error pages, add your .html files in `/mnt/docker/flarum/assets/errors` folder :

```bash
mkdir -p /mnt/docker/flarum/assets/errors
touch 403.html 404.html 500.html 503.html
chown -R 991:991 /mnt/docker/flarum
```

### Custom vhost flarum nginx

File to change the vhost flarum `/etc/nginx/conf.d/custom-vhost-flarum.conf`  
To use file custom-vhost-flarum.conf add volume `/etc/nginx/conf.d`

### Custom composer repositories

To use the composer repository system, add your repo name and json representation in `/mnt/docker/flarum/extensions/composer.repositories.txt` :

```
my_private_repo|{"type":"path","url":"extensions/*/"}
my_public_repo|{"type":"vcs","url":"https://github.com/my/repo"}
```

https://getcomposer.org/doc/03-cli.md#modifying-repositories