Local Machine Setup using Docker¶

The following instructions use Docker to install Mattermost in Preview Mode for exploring product functionality on a single machine using Docker.

Note: This configuration should not be used in production, as it’s using a known password string and contains other non-production configuration settings, and it does not support upgrade.

If you’re looking for a production installation with Docker, please see the Mattermost Production Docker Deployment Guide.

Note

If you have any problems installing Mattermost, see the troubleshooting guide. For help with inviting users to your system, see inviting team members and other getting started information. To submit an improvement or correction, click Edit at the top of this page.

One-line Docker Install¶

If you have Docker set up, Mattermost installs in one-line:

docker run --name mattermost-preview -d --publish 8065:8065 --add-host dockerhost:127.0.0.1 mattermost/mattermost-preview

Otherwise, see step-by-step instructions:

macOS¶

Install Docker for Mac
Run: docker run --name mattermost-preview -d --publish 8065:8065 --add-host dockerhost:127.0.0.1 mattermost/mattermost-preview
When docker is done fetching the image, open http://localhost:8065/ in your browser.

Windows 10¶

Install Docker for Windows
Run: docker run --name mattermost-preview -d --publish 8065:8065 --add-host dockerhost:127.0.0.1 mattermost/mattermost-preview
When Docker is done fetching the image, open http://localhost:8065/ in your browser.

Ubuntu¶

Follow the instructions at https://docs.docker.com/installation/ubuntulinux/ or use the summary below:

sudo apt-get update
sudo apt-get install wget
wget -qO- https://get.docker.com/ | sh
sudo usermod -aG docker <username>
sudo service docker start
newgrp docker

Start Docker container:

docker run --name mattermost-preview -d --publish 8065:8065 --add-host dockerhost:127.0.0.1 mattermost/mattermost-preview

When Docker is done fetching the image, open http://localhost:8065/ in your browser.

Fedora¶

Follow the instructions at https://docs.docker.com/engine/installation/linux/fedora/ or use the summary below:

sudo dnf -y install dnf-plugins-core
sudo dnf config-manager \
--add-repo \
https://download.docker.com/linux/fedora/docker-ce.repo
sudo dnf install docker-ce docker-compose git # Accepting the new docker repository key
sudo usermod -aG docker <username>
sudo systemctl start docker

Start Docker container:

docker run --name mattermost-preview -d --publish 8065:8065 --add-host dockerhost:127.0.0.1 mattermost/mattermost-preview

When Docker is done fetching the image, open http://localhost:8065/ in your browser.

Arch Linux¶

To install the preview on Arch Linux, see the installation guide on the Arch Linux wiki.

Setting up SMTP Email (Recommended)¶

The default single-container Docker instance for Mattermost is designed for product evaluation, and sets SendEmailNotifications=false so the product can function without enabling email. To see the product’s full functionality, enabling SMTP email is recommended.

To enable email, configure an SMTP email service as follows:

Set up an SMTP email sending service (if you don’t yet have an SMTP service with credentials)
- Any SMTP email service can be used, you just need the following
  information: Server Name, Port, SMTP Username, and SMTP Password.
  - If you don’t have an SMTP service, here are simple instructions
    
    to set one up with Amazon Simple Email Service (SES):
    
    Go to Amazon SES console then SMTP Settings > Create My SMTP Credentials
    
    Copy the Server Name, Port, SMTP Username, and SMTP Password for Step 2 below.
    
    From the Domains menu set up and verify a new domain, then enable Generate DKIM Settings for the domain.
    
    We recommend you set up Sender Policy Framework (SPF) and/or Domain Keys Identified Mail (DKIM) for your email domain.
    
    Choose an sender address like mattermost@example.com and click Send a Test Email to verify setup is working correctly.
Configure SMTP settings
1. Open the System Console by logging into an existing team and accessing “System Console” from the main menu.
  - Alternatively, if a team doesn’t yet exist, go to
    
    http://dockerhost:8065/ in your browser, create a team, then from the main menu click System Console
2. Go to the Authentication > Email tab and configure the following:
  1. Allow Sign Up With Email: true
3. Go to the Notifications > Email tab and configure the following:
  1. Send Email Notifications: true
  2. Notification Display Name: Display name on email account sending notifications
  3. Notification Email Address: Email address displayed on email account used to send notifications
  4. SMTP Username: SMTP Username from Step 1
  5. SMTP Password: SMTP Password from Step 1
  6. SMTP Server: SMTP Server from Step 1
  7. SMTP Port: SMTP Port from Step 1
  8. Connection Security: TLS (Recommended)
  9. Then click Save
  10. Then click Test Connection
  11. If the test failed please look in OTHER > Logs for any errors that look like [EROR] /api/v4/email/test ...
4. (Optional) Go to the Security > Sign Up tab and configure the following:
  1. Enable Email Invitations: true

Sample SMTP Settings¶

Amazon SES¶

Set SMTP Username to [YOUR_SMTP_USERNAME]
Set SMTP Password to [YOUR_SMTP_PASSWORD]
Set SMTP Server to email-smtp.us-east-1.amazonaws.com
Set SMTP Port to 465
Set Connection Security to TLS

Postfix¶

Make sure Postfix is installed on the machine where Mattermost is installed
Set SMTP Username to (empty)
Set SMTP Password to (empty)
Set SMTP Server to localhost
Set SMTP Port to 25
Set Connection Security to (empty)

Gmail¶

Set SMTP Username to your_email@gmail.com
Set SMTP Password to your_password
Set SMTP Server to smtp.gmail.com
Set SMTP Port to 587
Set Connection Security to STARTTLS

Warning

Additional configuration is required in Google to allow SMTP email to relay through their servers. See SMTP relay: Route outgoing non-Gmail messages through Google for the required steps.

Hotmail¶

Set SMTP Username to your_email@hotmail.com
Set SMTP Password to your_password
Set SMTP Server to smtp-mail.outlook.com
Set SMTP Port to 587
Set Connection Security to STARTTLS

Office365 / Outlook¶

Set SMTP Username to your_email@hotmail.com
Set SMTP Password to your_password
Set SMTP Server Name to smtp.office365.com
Set SMTP Port to 587
Set Connection Security to STARTTLS

Troubleshooting SMTP¶

TLS/STARTTLS Requirements¶

If you fill in SMTP Username and SMTP Password then you must set Connection Security to TLS or to STARTTLS

Troubleshooting using Logs¶

If you have issues with your SMTP install, from your Mattermost team site go to the main menu and open System Console -> Logs to look for error messages related to your setup. You can do a search for the error code to narrow down the issue. Sometimes ISPs require nuanced setups for SMTP and error codes can hint at how to make the proper adjustments.

For example, if System Console -> Logs has an error code reading:

Connection unsuccessful: Failed to add to email address - 554 5.7.1 <unknown[IP-ADDRESS]>: Client host rejected: Access denied

Search for 554 5.7.1 error and Client host rejected: Access denied.

Checking your SMTP server is reachable¶

Attempt to telnet to the email service to make sure the server is reachable.
You must run the following commands from the same machine or virtual instance where mattermost/bin/mattermost is located. So if you’re running Mattermost from Docker you need to docker exec -ti mattermost-dev /bin/bash
Telnet to the email server with telnet mail.example.com 25. If the command works you should see something like
```
Trying 24.121.12.143...
Connected to mail.example.com.
220 mail.example.com NO UCE ESMTP
```
Then type something like HELO <your mail server domain>. If the command works you should see something like
```
250-mail.example.com NO UCE
250-STARTTLS
250-PIPELINING
250 8BITMIME
```

Note

For additional troubleshooting tips, see the troubleshooting guide. To submit an improvement or correction, click Edit at the top of this page.

Configuration Settings¶

See Configuration Settings documentation to customize your deployment.

Updating Docker Preview¶

To delete your existing Docker preview and run a new version use:

docker stop mattermost-preview
docker rm -v mattermost-preview

Accessing Your Container¶

If you wish to gain access to a shell on the container use:
```
docker exec -ti mattermost-preview /bin/bash
```