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Environment Variables

The .env File​

We use the dotenv-rails gem to manage the environment variables. There is a file called env.example in the root directory of this project with all the environment variables set to empty values. You can set the correct values as per the following options. Once you set the values, you should rename the file to .env before you start the server.

Configure frontend URL (domain)​

Provide your chatwoot domain as frontend URL.

FRONTEND_URL='https://your-chatwoot-domain.tld'

Rails production variables​

For production deployment, you have to set the following variables

RAILS_ENV=production
SECRET_KEY_BASE=replace_with_your_own_secret_string

You can generate SECRET_KEY_BASE using rake secret command from the project root folder.

Database configuration​

Postgres can be configured in two ways: via DATABASE_URL or setting up independent Postgres variables.

Configure Postgres​

Set the DATABASE_URL variable with value as Postgres connection URI to connect to the database.

The URI is of the format

postgresql://[user[:password]@][netloc][:port][,...][/dbname][?param1=value1&...]

Or you can set the following environment variables to configure Postgres. Replace the values here with yours. Skip this if you have configured DATABASE_URL.

POSTGRES_HOST=localhost
POSTGRES_PORT=5432
POSTGRES_DATABASE=chatwoot_production
POSTGRES_USERNAME=admin
POSTGRES_PASSWORD=password

Configure Redis​

For development, you can use the following URL to connect to Redis. For production, configure your Redis URL.

REDIS_URL='redis://127.0.0.1:6379'

To authenticate Redis connections made by the app server and sidekick, if it's protected by a password, use the following environment variable to set the password.

REDIS_PASSWORD=

Configure emails​

For development, you don't need an email provider. UniLink uses the letter-opener gem to test emails locally

For production use, please configure the following variables.

# could user either `email@yourdomain.com` or `BrandName <email@yourdomain.com>`
MAILER_SENDER_EMAIL=

and based on your SMTP server the following variables

SMTP_ADDRESS=
SMTP_USERNAME=
SMTP_PASSWORD=
SMTP_TLS=
SMTP_SSL=

Postfix​

Follow these steps if you want to use a selfhosted mail server with UniLink. This is the default behavior starting from v2.12.0 and relies on SMTP_ADDRESS environment variable not being set.

sudo apt install -y postfix

Choose internet-site when prompted and enter the domain name you used with UniLink setup for System mail name.

Note: By default, all major cloud provider have blocked port 25 used for sending emails as part of their spam combat effects. Please raise a support ticket with your cloud provider to enable outbound access on port 25 for this to work. Refer AWS, GCP, Azure and DigitalOcean for more details.

Also please add MX and PTR records for your domain. If your emails are being flagged by Gmail and Outlook, setup SPF and DKIM records for your domain as well. This should improve your email reputation.

Amazon SES​

SMTP_ADDRESS=email-smtp.<region>.amazonaws.com
SMTP_AUTHENTICATION=plain
SMTP_ENABLE_STARTTLS_AUTO=true
SMTP_USERNAME=<Your SMTP username>
SMTP_PASSWORD=<Your SMTP password>

SendGrid​

SMTP_ADDRESS=smtp.sendgrid.net
SMTP_AUTHENTICATION=plain
SMTP_DOMAIN=<your verified domain>
SMTP_ENABLE_STARTTLS_AUTO=true
SMTP_PORT=587
SMTP_USERNAME=apikey
SMTP_PASSWORD=<your Sendgrid API key>

MailGun​

SMTP_ADDRESS=smtp.mailgun.org
SMTP_AUTHENTICATION=plain
SMTP_DOMAIN=<Your domain, this has to be verified in Mailgun>
SMTP_ENABLE_STARTTLS_AUTO=true
SMTP_PORT=587
SMTP_USERNAME=<Your SMTP username, view under Domains tab>
SMTP_PASSWORD=<Your SMTP password, view under Domains tab>

Mandrill​

If you would like to use Mailchimp to send your emails, use the following environment variables: Note: Mandrill is the transactional email service for Mailchimp. You need to enable transactional email and login to mandrillapp.com.

SMTP_ADDRESS=smtp.mandrillapp.com
SMTP_AUTHENTICATION=plain
SMTP_DOMAIN=<Your verified domain in Mailchimp>
SMTP_ENABLE_STARTTLS_AUTO=true
SMTP_PORT=587
SMTP_USERNAME=<Your SMTP username displayed under Settings -> SMTP & API info>
SMTP_PASSWORD=<Any valid API key, create an API key under Settings -> SMTP & API Info>

Configure default language​

DEFAULT_LOCALE='en'

Configure storage​

UniLink uses active storage for storing attachments. The default storage option is the local storage on your server.

But you can change it to use any of the cloud providers like amazon s3, microsoft azure, google gcs etc. Refer configuring cloud storage for additional environment variables required.

ACTIVE_STORAGE_SERVICE=local

When local storage is used the files are stored under /storage directory in the chatwoot root folder.

It is recommended to use a cloud provider for your chatwoot storage to ensure proper backup of the stored attachments and prevent data loss.

Rails Logging Variables​

By default, UniLink will capture info level logs in production. Ref rails docs for the additional log-level options. We will also retain 1 GB of your recent logs and your last shifted log file. You can fine-tune these settings using the following environment variables

# possible values: 'debug', 'info', 'warn', 'error', 'fatal' and 'unknown'
LOG_LEVEL=
# value in megabytes
LOG_SIZE= 1024

Configure FB Channel​

To use FB Channel, you have to create a Facebook app in the developer portal. You can find more details about creating FB channels here

FB_VERIFY_TOKEN=
FB_APP_SECRET=
FB_APP_ID=

Using CDN for asset delivery​

With the release v1.8.0, we are enabling CDN support for UniLink. If you have a high traffic website, we recommend to setup a CDN for your asset delivery. Read setting up CloudFront as your CDN guide.

Enable new account signup​

By default, UniLink will not allow users to create an account[multi-tenancy] from the login page. However, if you are setting up a public server, you can enable signup using:

ENABLE_ACCOUNT_SIGNUP=true

Enable direct upload to storage cloud​

By default, UniLink will upload the files to the application server and then it will push them to the cloud storage. We have introduced the direct upload functionality so that we can upload the file directly to the cloud storage. This has been built according to rails new direct upload functionality documented here. Set below environment variable to true to use the direct upload feature.

Make sure to follow this guide and set the appropriate CORS configuration on your cloud storage after setting DIRECT_UPLOADS_ENABLED to true.

DIRECT_UPLOADS_ENABLED=true

Google OAuth​

To enable Google OAuth in UniLink, you need to provide the client ID, client secret, and callback URL. You can find the instructions to generate the details here.

Set the GOOGLE_OAUTH_CLIENT_ID and GOOGLE_OAUTH_CLIENT_SECRET environment variables in your UniLink installation using the values you copied from the Google API Console. Set the GOOGLE_OAUTH_CALLBACK_URL environment variable to the callback URL you used in the Google API Console. Here's an example of the same

GOOGLE_OAUTH_CLIENT_ID=369777777777-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.apps.googleusercontent.com
GOOGLE_OAUTH_CLIENT_SECRET=ABCDEF-GHijklmnoPqrstuvwX-yz1234567
GOOGLE_OAUTH_CALLBACK_URL=https://<your-server-domain>/omniauth/google_oauth2/callback

The callback URL should comply with the format in the example above. This endpoint cannot be changed at the moment.

After setting these environment variables, restart your UniLink server to apply the changes. Now, users will be able to sign in using their Google accounts.

LogRocket​

To enable LogRocket in UniLink, you need to provide the project ID from LogRocket. Here are the steps to follow:

  1. Open the LogRocket website and create an account or sign in to your existing account.
  2. After signing in, create a new project in LogRocket by clicking on "Create new project".
  3. Enter a name for your project, and save the project ID.
  4. Set the LOG_ROCKET_PROJECT_ID environment variable in your .env file with the project ID you copied from LogRocket.
LOG_ROCKET_PROJECT_ID=abcd12/pineapple-on-pizza

After setting this environment variable, restart your UniLink server to apply the changes. Now, LogRocket will start capturing user sessions on your UniLink installation.