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slacker

★ 38 Open GitHub ↗

Simple smtp email server which redirects emails to slack.

// repository documentation

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# Slacker

Slacker is simple email-to-slack gateway. It support basic rules for routing
messages to different slack channels from different bots.

Main purpose of slacker is to redirect messages from old-school systems which doesn't
support messaging other than email. For example cron and monit
(https://mmonit.com/monit/) support only emails as the only system for
notifications.

## Installation

Slacker can be easily installed via docker:

```bash
docker pull ontrif/slacker
```

Then run container with custom slacker `config.yml`:

```bash
docker run \
    -d --restart=always \
    --name=slacker \
    -v /path/to/config.yml:/etc/slacker/config.yml \
    -p localhost:8025:8025 \
    ontrif/slacker
```
Last command will start SMTP server on `localhost:8025`

## Config

Slacker supports simple list of rules for configuring target slack channel, bot
name and its avatar depending on email content.

There are two sections:
  * default: this is default options for sending message to slack.
  * rules: list of rules for matching email message against 'from', 'to' and/or 'subject'.

Each rule in list tested in order. First matched rule is used to update
options values from 'default' section of config.

Example `config.yml` for redirecting email to two channels: `#monit` and `#cron`:
```yaml
# default values for channel, bot name, avatar url, slack token and debug mode
default:
    channel: "#general"
    username: "slacker"
    icon_url: ""
    slack_token: "xoxb-00000000000-aaaaaaaaaaaaaaaaaaaaaaaa"
    debug: false

# list of rules
rules:
    - name: "Monit rule"
      from: "monit@.*"     # all emails from monit@localhost will match this rule

options:
          username: "monit"
          channel: "#monit"
          icon_url: "https://bitbucket.org/tildeslash/monit/avatar/128"
          debug: false

- name: "Cron rule"
      from: "root@localhost"
      subject: "Cron.*"    # cron email subject starts with "Cron..."

options:
          username: "cron"
          channel: "#cron"
          icon_url: ""
          debug: true    # will output full email with all X-headers
```

slacker

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