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# Production Installation on Red Hat Enterprise Linux 6.6
## Install Red Hat Enterprise Linux (x64) 6.6
1. Set up 3 machines with RHEL with 2GB of RAM or more. The servers will be used for the Load Balancer, Mattermost (this must be x64 to use pre-built binaries), and Database.
- **Optional:** You can also use a single machine for all 3 components in this install guide, depending on the standards of your data center.
2. Make sure the system is up to date with the most recent security patches.
* ``` sudo yum update```
* ``` sudo yum upgrade```
## Set up Database Server
1. For the purposes of this guide we will assume this server has an IP address of `10.10.10.1`
- **Optional:** if installing on the same machine substitute `10.10.10.1` with `127.0.0.1`
1. Install PostgreSQL 9.4+ (or MySQL 5.6+)
* ``` sudo yum install http://yum.postgresql.org/9.4/redhat/rhel-6-x86_64/pgdg-redhat94-9.4-1.noarch.rpm```
* ``` sudo yum install postgresql94-server postgresql94-contrib```
* ``` sudo service postgresql-9.4 initdb```
* ``` sudo chkconfig postgresql-9.4 on```
* ``` sudo service postgresql-9.4 start```
1. PostgreSQL created a user account called `postgres`. You will need to log into that account with:
* ``` sudo -i -u postgres```
1. You can get a PostgreSQL prompt by typing:
* ``` psql```
1. Create the Mattermost database by typing:
* ```postgres=# CREATE DATABASE mattermost;```
1. Create the Mattermost user by typing:
* ```postgres=# CREATE USER mmuser WITH PASSWORD 'mmuser_password';```
1. Grant the user access to the Mattermost database by typing:
* ```postgres=# GRANT ALL PRIVILEGES ON DATABASE mattermost to mmuser;```
1. You can exit out of PostgreSQL by typing:
* ```postgres=# \q```
1. You can exit the Postgres account by typing:
* ``` exit```
1. Allow Postgres to listen on all assigned IP Addresses:
* ```sudo vi /var/lib/pgsql/9.4/data/postgresql.conf```
* Uncomment 'listen_addresses' and change 'localhost' to '*'
1. Alter `pg_hba.conf` to allow the Mattermost Server to talk to the Postgres database:
* ```sudo vi /var/lib/pgsql/9.4/data/pg_hba.conf```
* Add the following line to the 'IPv4 local connections':
* host all all 10.10.10.2/32 md5
1. Reload Postgres database:
* ```sudo service postgresql-9.4 restart```
1. Attempt to connect with the new created user to verify everything looks good:
* ```psql --host=10.10.10.1 --dbname=mattermost --username=mmuser --password```
* ```mattermost=> \q```
## Set up Mattermost Server
1. For the purposes of this guide we will assume this server has an IP address of `10.10.10.2`
1. Download the latest Mattermost Server by typing:
* ``` wget https://github.com/mattermost/platform/releases/download/v1.3.0/mattermost.tar.gz```
1. Install Mattermost under `/opt`
* Unzip the Mattermost Server by typing:
* ``` tar -xvzf mattermost.tar.gz```
* ``` sudo mv mattermost /opt```
1. Create the storage directory for files. We assume you will have attached a large drive for storage of images and files. For this setup we will assume the directory is located at `/opt/mattermost/data`.
* Create the directory by typing:
* ``` sudo mkdir -p /opt/mattermost/data```
1. Create a system user and group called mattermost that will run this service:
* ``` sudo useradd -r mattermost -U```
* Set the Mattermost account as the directory owner by typing:
* ``` sudo chown -R mattermost:mattermost /opt/mattermost```
* ``` sudo chmod -R g+w /opt/mattermost```
* Add yourself to the mattermost group to ensure you can edit these files:
* ``` sudo usermod -a -G mattermost USERNAME```
1. Configure Mattermost Server by editing the `config.json` file at `/opt/mattermost/config`
* ``` cd /opt/mattermost/config```
* Edit the file by typing:
* ``` sudo vi config.json```
* replace `DriverName": "mysql"` with `DriverName": "postgres"`
* replace `"DataSource": "mmuser:mostest@tcp(dockerhost:3306)/mattermost_test?charset=utf8mb4,utf8"` with `"DataSource": "postgres://mmuser:mmuser_password@10.10.10.1:5432/mattermost?sslmode=disable&connect_timeout=10"`
* Optionally you may continue to edit configuration settings in `config.json` or use the System Console described in a later section to finish the configuration.
1. Test the Mattermost Server
* ``` cd /opt/mattermost/bin```
* Run the Mattermost Server by typing:
* ``` sudo su mattermost```
* ``` ./platform```
* You should see a console log like `Server is listening on :8065` letting you know the service is running.
* Stop the server for now by typing `Ctrl-C`
1. Setup Mattermost to use the Upstart daemon which handles supervision of the Mattermost process.
* ``` sudo touch /etc/init/mattermost.conf```
* ``` sudo vi /etc/init/mattermost.conf```
* Copy the following lines into `/etc/init/mattermost.conf`
```
start on runlevel [2345]
stop on runlevel [016]
respawn
chdir /opt/mattermost
exec bin/platform
```
* You can manage the process by typing:
* ``` sudo start mattermost```
* Verify the service is running by typing:
* ``` curl http://10.10.10.2:8065```
* You should see a page titles *Mattermost - Signup*
* You can also stop the process by running the command ` sudo stop mattermost`, but we will skip this step for now.
## Set up Nginx Server
1. For the purposes of this guide we will assume this server has an IP address of `10.10.10.3`
1. We use Nginx for proxying request to the Mattermost Server. The main benefits are:
* SSL termination
* HTTP to HTTPS redirect
* Port mapping :80 to :8065
* Standard request logs
1. Install Nginx on RHEL with
* ``` sudo vi /etc/yum.repos.d/nginx.repo```
* Copy the below into the file
```
[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/rhel/6/$basearch/
gpgcheck=0
enabled=1
```
* ``` sudo yum install nginx.x86_64```
* ``` sudo service nginx start```
* ``` sudo chkconfig nginx on```
1. Verify Nginx is running
* ``` curl http://10.10.10.3```
* You should see a *Welcome to nginx!* page
1. Map a FQDN (fully qualified domain name) like **mattermost.example.com** to point to the Nginx server.
1. Configure Nginx to proxy connections from the internet to the Mattermost Server
* Create a configuration for Mattermost
* ``` sudo touch /etc/nginx/conf.d/mattermost.conf```
* Below is a sample configuration with the minimum settings required to configure Mattermost
```
server {
server_name mattermost.example.com;
location / {
client_max_body_size 50M;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Frame-Options SAMEORIGIN;
proxy_pass http://10.10.10.2:8065;
}
}
```
* Remove the existing file with:
* ``` sudo mv /etc/nginx/conf.d/default.conf /etc/nginx/conf.d/default.conf.bak```
* Restart Nginx by typing:
* ``` sudo service nginx restart```
* Verify you can see Mattermost thru the proxy by typing:
* ``` curl http://localhost```
* You should see a page titles *Mattermost - Signup*
* Not seeing the page? Look for errors with ``` sudo cat /var/log/audit/audit.log | grep nginx | grep denied```
* **Optional** if you're running on the same server as the Mattermost server and see 502 errors you may need to run `sudo setsebool -P httpd_can_network_connect true` because SELinux is preventing the connection
## Set up Nginx with SSL (Recommended)
1. You will need a SSL cert from a certificate authority.
1. For simplicity we will generate a test certificate.
* ``` mkdir /top/mattermost/cert```
* ``` cd /top/mattermost/cert```
* ``` sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout mattermost.key -out mattermost.crt```
* Input the following info
```
Country Name (2 letter code) [AU]:US
State or Province Name (full name) [Some-State]:California
Locality Name (eg, city) []:Palo Alto
Organization Name (eg, company) [Internet Widgits Pty Ltd]:Example LLC
Organizational Unit Name (eg, section) []:
Common Name (e.g. server FQDN or YOUR name) []:mattermost.example.com
Email Address []:admin@mattermost.example.com
```
1. Modify the file at `/etc/nginx/conf.d/mattermost.conf` and add the following lines
*
```
server {
listen 80;
server_name mattermost.example.com;
return 301 https://$server_name$request_uri;
}
server {
listen 443 ssl;
server_name mattermost.example.com;
ssl on;
ssl_certificate /opt/mattermost/cert/mattermost.crt;
ssl_certificate_key /opt/mattermost/cert/mattermost.key;
ssl_session_timeout 5m;
ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers "HIGH:!aNULL:!MD5 or HIGH:!aNULL:!MD5:!3DES";
ssl_prefer_server_ciphers on;
ssl_session_cache shared:SSL:10m;
# add to location / above
location / {
gzip off;
proxy_set_header X-Forwarded-Ssl on;
```
## Finish Mattermost Server setup
1. Navigate to `https://mattermost.example.com` and create a team and user.
1. The first user in the system is automatically granted the `system_admin` role, which gives you access to the System Console.
1. From the `town-square` channel click the dropdown and choose the `System Console` option
1. Update Email Settings. We recommend using an email sending service. The example below assumes AmazonSES.
* Set *Send Email Notifications* to true
* Set *Require Email Verification* to true
* Set *Feedback Name* to `No-Reply`
* Set *Feedback Email* to `mattermost@example.com`
* Set *SMTP Username* to `AFIADTOVDKDLGERR`
* Set *SMTP Password* to `DFKJoiweklsjdflkjOIGHLSDFJewiskdjf`
* Set *SMTP Server* to `email-smtp.us-east-1.amazonaws.com`
* Set *SMTP Port* to `465`
* Set *Connection Security* to `TLS`
* Save the Settings
1. Update File Settings:
* Change *Local Directory Location* from `./data/` to `/opt/mattermost/data`
1. Update Log Settings:
* Set *Log to The Console* to `false`
1. Update Rate Limit Settings:
* Set *Vary By Remote Address* to false
* Set *Vary By HTTP Header* to X-Real-IP
1. Feel free to modify other settings
1. Restart the Mattermost Service by typing:
* ``` sudo restart mattermost```
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