Install Mattermost on CentOS 7

Introduction

Install Mattermost (premise below)

• PostgreSQL 9.5
• Nginx
• Working as root user

Rough flow

Follow the steps in the official documentation below https://docs.mattermost.com/install/install-rhel-7.html

• Installing PostgreSQL Server
• Installing Mattermost Server
• Mattermost settings

Installing PostgreSQL Server

# cd
# curl -O https://download.postgresql.org/pub/repos/yum/9.5/redhat/rhel-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  6672  100  6672    0     0   5086      0  0:00:01  0:00:01 --:--:--  5089

# yum localinstall pgdg-redhat-repo-latest.noarch.rpm
:
Has completed!

# yum install postgresql95-server postgresq95-contrib
:
Has completed!

Set environment variables to specify initdb parameters

# export PGSETUP_INITDB_OPTIONS="--locale=ja_JP.UTF8"
# /usr/pgsql-9.5/bin/postgresql95-setup initdb

# systemctl enable postgresql-9.5
Created symlink from /etc/systemd/system/multi-user.target.wants/postgresql-9.5.service to /usr/lib/systemd/system/postgresql-9.5.service.
# systemctl start postgresql-9.5

# su - postgres

Create a database (locale is Japan)

$ psql
psql (9.5.24)
"help"Get help with.

postgres=# CREATE DATABASE mattermost WITH ENCODING 'UTF8' LC_COLLATE='ja_JP.UTF-8' LC_CTYPE='ja_JP.UTF-8' TEMPLATE=template0;
CREATE DATABASE

'mmuser-password' sets its own password

postgres=# CREATE USER mmuser WITH PASSWORD 'mmuser-password';
CREATE ROLE

postgres=# \q
$ exit

Install Mattermost Server

Check the URL of the latest installation file below https://mattermost.com/download/ This time it will be as follows https://releases.mattermost.com/5.31.0/mattermost-5.31.0-linux-amd64.tar.gz Use the curl command if the wget command is not available

# cd
# curl -O https://releases.mattermost.com/5.31.0/mattermost-5.31.0-linux-amd64.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  201M  100  201M    0     0  7655k      0  0:00:26  0:00:26 --:--:-- 8125k

# tar -xvzf mattermost-5.31.0-linux-amd64.tar.gz
mattermost/
:
mattermost/logs/

Upload files and images are saved in the data directory, so change the location if necessary.

# mv mattermost /opt
# mkdir /opt/mattermost/data
# 

# useradd --system --user-group mattermost
# chown -R mattermost:mattermost /opt/mattermost
# chmod -R g+w /opt/mattermost

# vi /opt/mattermost/config/config.json

/opt/mattermost/config/config.json

:
    "SiteURL": "https://mattermost.example.com",
:
    "DriverName": "postgres",
    "DataSource": "postgres://mmuser:mmuser-pasword@localhost/mattermost?sslmode=disable\u0026connect_timeout=10",
:

# cd /opt/mattermost
# sudo -u mattermost ./bin/mattermost
{"level":"info","ts":1611110265.8058856,"caller":"app/server.go:225","msg":"Server is initializing..."}
:
{"level":"info","ts":1611110271.9833667,"caller":"app/server.go:983","msg":"Server is listening on [::]:8065","address":"[::]:8065"}

Make sure you can connect to http://mattermost.example.com:8065 Stop the server with Ctrl + C

^C{"level":"info","ts":1611110455.7103934,"caller":"app/server.go:721","msg":"Stopping Server..."}
:
{"level":"info","ts":1611110455.7169805,"caller":"app/server.go:799","msg":"Server stopped"}

# vi /etc/systemd/system/mattermost.service

/etc/systemd/system/mattermost.service

[Unit]
Description=Mattermost
After=syslog.target network.target postgresql-9.5.service

[Service]
Type=notify
WorkingDirectory=/opt/mattermost
User=mattermost
ExecStart=/opt/mattermost/bin/mattermost
PIDFile=/var/spool/mattermost/pid/master.pid
TimeoutStartSec=3600
LimitNOFILE=49152

[Install]
WantedBy=multi-user.target

# chmod 664 /etc/systemd/system/mattermost.service
# systemctl daemon-reload
# systemctl enable mattermost
# systemctl start mattermost

Make sure you can connect to http://mattermost.example.com:8065

Mattermost settings

Japanese localization of menu

First, create a team and display the team Follow the steps below to change the display language Account Settings ＞ Display ＞ Language ＞ Japanese ＞ Save

Email notification settings

System Console> Site Settings> Notifications

• Enable email notifications: Enabled

• Notification display name: No-Reply

• Email address from which notifications are sent: [email protected]

• save

• It is assumed that the SMTP server is running on the Mattermost server. System Console> Environment> SMTP

• SMTP server port: 25

• Test the connection

• save

Other settings

Make other settings

Reboot for the changes to take effect

# systemctl restart mattermost

Enable SSL

Enable SSL by installing a reverse proxy Also allow access on HTTPS default port 443 Here we assume that Nginx is already installed Also, it is assumed that include /etc/nginx/conf.d/*.conf is described in /etc/nginx/nginx.conf.

Create a configuration file

# vi /etc/nginx/conf.d/mattermost.example.com

:/etc/nginx/conf.d/mattermost.example.com

upstream backend {
   server localhost:8065;
   keepalive 32;
}
:
server {
  listen 80 default_server;
  server_name   mattermost.example.com;
  return 301 https://$server_name$request_uri;
}

server {
   listen 443 ssl http2;
   server_name    mattermost.example.com;

   http2_push_preload on; # Enable HTTP/2 Server Push

   #ssl on;
   ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
   ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem;
   ssl_session_timeout 1d;
:

Enable the config file

# cd /etc/nginx/conf.d
# ln -s /etc/nginx/conf.d/mattermost.example.com mattermost.example.com.conf

# systemctl restart nginx