Added docker files and docs

Author: atelomycterus

.dockerignore

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+.git
+node_modules
+coverage
+*nyc*

Dockerfile

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+FROM webdevops/php-apache
+
+ARG VANILLA_VERSION=3.3
+ENV WEB_DOCUMENT_ROOT /vanillapp
+
+# Get the latest release of Vanilla Forums
+RUN wget https://github.com/vanilla/vanilla/releases/download/Vanilla_${VANILLA_VERSION}/vanilla-${VANILLA_VERSION}.zip
+RUN unzip vanilla-${VANILLA_VERSION}.zip -d /tmp
+RUN cp -r /tmp/package/. /vanillapp/
+RUN chmod -R 777 /vanillapp
+
+# Clone the forum-plugins repository
+RUN git clone https://github.com/topcoder-platform/forums-plugins.git /tmp/forums-plugins
+RUN cp -r /tmp/forums-plugins/. /vanillapp/plugins/

README.md

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+#Topcoder - Forums
+
+## Requirements
+
+- Docker (docker deployment)
+
+## Docker Deployment
+- Set `MYSQL_DATABASE` and `MYSQL_ROOT_PASSWORD` in api.env. 
+These variables are mandatory. `MYSQL_ROOT_PASSWORD` specifies the password that will be set for the MySQL root superuser account.
+- Run `docker-compose build` to build the image
+- Run `docker-compose up` to run Vanilla Forums
+- The Vanilla Forums will be available at `http://<your_docker_machine_ip>` by default
+
+## Setup Vanilla Forums 
+
+Go to [Setup Vanilla Forums](./docs/SetupVanillaForums.md) to complete installation.

docker-compose.yml

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+version: '3'
+services:
+  mysql-local:
+    image: mysql
+    container_name: mysql-local
+    ports:
+      - 3306:3306
+    environment:
+      - MYSQL_DATABASE=vanilladb
+      - MYSQL_ROOT_PASSWORD=root
+    command: --default-authentication-plugin=mysql_native_password
+  vanilla-local:
+    container_name: vanilla-local
+    build:
+      context: .
+      args:
+        - VANILLA_VERSION=3.3
+    ports:
+      - 80:80
+    links:
+      - mysql-local

docs/SetupVanillaForums.md

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+# Setup Vanilla Forums
+
+# Installation
+The Vanilla Forums will be available at `http://<your_docker_machine_ip>` by default.
+
+1.Open your browser and go to Vanilla Forums. 
+
+2.You should see Vanilla Forums setup wizard. Vanilla Forums Installer will
+create a database and an admin account. You should type the next values: 
+ - **Database Host** - `mysql-local` 
+ - **Database Name** - `vanilladb`
+ - **Database User** - `root`
+ - **Database Password** - `root`
+ - **Use Vanilla's .htaccess** - selected by default. 
+ 
+ Type other fields. Click on the `Continue` button to complete the installation.
+ 
+ ![Vanilla Forums Wizard](./images/setup_wizard.png) 
+ 
+3.The 'Getting started' page should be displayed. You have successfully installed Vanilla Forums.
+
+ ![Getting Started page](./images/vanilla_installed.png)
+
+# Configuration
+
+
+## Enabling Addons
+1.Go to your `Dashboard`, then `Settings`, and select `Addons` at the bottom of the list on the left 
+hand side panel. Navigate to the addons list and click `Enable` next to the plugin. 
+Enabling the addon immediately makes it active and available.
+
+![Vanilla Addons](./images/addons.png) 
+
+2.After enabling some plugins will have a `Settings` 3-strip button that appear next to them in
+the Addons list.
+
+![Addon Settings](./images/addon_settings.png) 
+
+## Disabling Addons
+1. Disabling an addon will remove whatever features it added, but it never destroys the data associated with it.
+ 
+
+