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 7.2**
- Latest [Flarum Core](https://github.com/flarum/core) (v0.1.0-beta.8.1)
- MySQL/Mariadb driver
- OPCache extension configured

### Build-time variables

- **VERSION** = Version of flarum (default: *v0.1.0-beta.8*)

### Ports

- **8888**

### Volume

- **/flarum/app/public/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
| **DB_PORT** | MariaDB database port | *optional* | 3306
| **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

### Required environment variable for first installation

| Variable | Description | Type | Default value |
| -------- | ----------- | ---- | ------------- |
| **FLARUM_ADMIN_USER** | Name of your user admin | **required** | none
| **FLARUM_ADMIN_PASS** | User admin password | **required** | none
| **FLARUM_ADMIN_MAIL** | User admin adress mail | **required** | none
| **FLARUM_TITLE** | Set a name of your flarum | *optional* | Docker-Flarum

## Installation

#### 1 - Pull flarum image

```bash
# Pull from hub.docker.com :
docker pull mondedie/docker-flarum:0.1.0-beta.8.1-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.8.1-stable
    container_name: flarum
    env_file:
      - /mnt/docker/flarum/flarum.env
    volumes:
      - /mnt/docker/flarum/assets:/flarum/app/public/assets
      - /mnt/docker/flarum/extensions:/flarum/app/extensions
      - /mnt/docker/flarum/nginx:/etc/nginx/conf.d
    depends_on:
      - mariadb

  mariadb:
    image: mariadb:10.2
    container_name: mariadb
    environment:
      - MYSQL_ROOT_PASSWORD=xxxxxxxxxx
      - MYSQL_DATABASE=flarum
      - MYSQL_USER=flarum
      - MYSQL_PASSWORD=xxxxxxxxxx
    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).

Create a environment file (see docker-compose: /mnt/docker/flarum/flarum.env [here](https://github.com/mondediefr/docker-flarum/tree/master#2---docker-composeyml))

```
# vi /mnt/docker/flarum/flarum.env

DEBUG=false
FORUM_URL=http://domain.tld

# Database configuration
DB_HOST=mariadb
DB_NAME=flarum
DB_USER=flarum
DB_PASS=xxxxxxxxxx
DB_PREF=flarum_
DB_PORT=3306

# User admin flarum (environment variable for first installation)
# /!\ admin password must contain at least 8 characters /!\
FLARUM_ADMIN_USER=admin
FLARUM_ADMIN_PASS=xxxxxxxxxx
FLARUM_ADMIN_MAIL=admin@domain.tld
FLARUM_TITLE=Test flarum
```

Run your docker-compose

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

* :warning: Your admin password must contain at least **8 characters** (FLARUM_ADMIN_PASS).
* 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-home](http://i.imgur.com/6kH9iTV.png)

### Upgrade to v0.1.0-beta.8.1 from v0.1.0-beta.7.2

:warning: Backup your database, config.php, composer.lock and assets folder  
:warning: Disable all 3rd party extensions prior to upgrading in panel admin.

1 - Add `installed.txt` file in assets folder  
Make sure to mount your assets folder with the folder /flarum/app/public/assets

```sh
touch /mnt/docker/flarum/assets/installed.txt
chown UID:GID /mnt/docker/flarum/assets/installed.txt
```

2 - Create your own environment file

```
# vi /mnt/docker/flarum/flarum.env

DEBUG=false
FORUM_URL=http://domain.tld

# Database configuration
DB_HOST=mariadb
DB_NAME=flarum
DB_USER=flarum
DB_PASS=xxxxxxxxxx
DB_PREF=flarum_
DB_PORT=3306

# environment variable not required
#FLARUM_ADMIN_USER=admin
#FLARUM_ADMIN_PASS=xxxxxxxxxx
#FLARUM_ADMIN_MAIL=admin@domain.tld
#FLARUM_TITLE=Test flarum
```

```sh
chown UID:GID /mnt/docker/flarum/flarum.env
```

3 - Update your docker-compose file, see an example [here](https://github.com/mondediefr/docker-flarum/tree/master#2---docker-composeyml)

4 - Pull the last docker images

```sh
docker pull mondedie/docker-flarum:0.1.0-beta.8.1-stable
docker-compose stop flarum
docker-compose rm flarum
docker-compose up -d
```

5 - Updating your database and removing old assets:

```sh
docker exec -ti flarum php /flarum/app/flarum migrate
docker exec -ti flarum php /flarum/app/flarum cache:clear
```

Since the flarum-english extension has been renamed to flarum-lang-english, you'll need to to re-enable it from the admin panel.  
After that your upgrade is finish. :tada: :tada:

### Upgrade to v0.1.0-beta.7.2 from v0.1.0-beta.6

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

```sh
docker pull mondedie/docker-flarum:0.1.0-beta.7.2-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:

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

### Install custom extensions

**Flarum extensions list :** https://flagrow.io/extensions

#### Install an extension

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

#### Remove an extension

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

#### List all extensions

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

### 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