concourse-slack-notifier

A structured and opinionated Slack notification resource for Concourse. It started as a rewrite of arbourd/concourse-slack-alert-resource in Rust to add a few features, mainly reading the message from a file or being able to send shorter messages that still had a similar format.

The message is built by using Concourse's resource metadata to show the pipeline, job, build number and a URL.

Installing

Use this resource by adding the following to the resource_types section of a pipeline config:

resource_types:

- name: slack-notifier
  type: docker-image
  source:
    repository: mockersf/concourse-slack-notifier

See the Concourse docs for more details on adding resource_types to a pipeline config.

Source Configuration

url: Required. Slack webhook URL.
channel: Optional. Target channel where messages are posted. If unset the default channel of the webhook is used.
concourse_url: Optional. The external URL that points to Concourse. Defaults to the env variable ATC_EXTERNAL_URL.
username: Optional. Concourse local user (or basic auth) username. Required for non-public pipelines if using alert type fixed or broke
password: Optional. Concourse local user (or basic auth) password. Required for non-public pipelines if using alert type fixed or broke
ca_cert: Optional. A CA certificate for the Concourse instance. This is used to validate the certificate of Concourse when the instance's certificate is signed by a custom authority (or itself).
ignore_ssl: Optional. This option allows unsecure access to Concourse (not verifying certificates).
disabled: Optional. This option will disable all notifications from this resource.

resources:

- name: notify
  type: slack-notifier
  source:
    url: https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX

Behavior

`check`: No operation.

`in`: No operation.

`out`: Send a message to Slack.

Sends a structured message to Slack based on the alert type and mode.

Parameters

alert_type: Optional. The type of alert to send to Slack. See Alert Types. Defaults to custom.
channel: Optional. Channel where this message is posted. Defaults to the channel setting in Source.
message: Optional. The status message at the top of the alert. Defaults to name of alert type.
message_file: Optional. The path to a file to use as message.
fail_if_message_file_missing: Optional. Will fail if message_file is set but the file is missing. Defaults to false.
color: Optional. The color of the notification bar as a hexadecimal. Defaults to the icon color of the alert type.
mode: Optional. The amount of information displayed in the message. See Modes. Defaults to normal_with_info.
disabled: Optional. This notification is disabled.
message_as_code: Optional. Message text will be wrapped in ``` [...] ```, if message is in mode normal or normal_with_info.

basic configuration:

jobs:
  plan:
  - put: notify

with an alert type, a mode and a message

jobs:
  plan:
  - put: notify
    params:
      message: my job failed
      mode: concise
      alert_type: failed

Alert Types

custom
success
failed
started
aborted
fixed

Fixed is a special alert type that only alerts if the previous build did not succeed. Fixed requires username and password to be set for the resource if the pipeline is not public.
broke

Broke is a special alert type that only alerts if the previous build succeed. Broke requires username and password to be set for the resource if the pipeline is not public.