[#1056] Added support for a webhook notification.

[tannguyen04]

Checklist before requesting a review

closes #1056

• I have formatted the subject to include ticket number as [#123] Verb in past tense with dot at the end.
• I have added a link to the issue tracker
• I have provided information in Changed section about WHY something was done if this was not a normal implementation
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have added tests that prove my fix is effective or that my feature works
• I have run new and existing relevant tests locally with my changes, and they passed
• I have provided screenshots, where applicable

Changed

Screenshots

[codecov]

Codecov Report

Attention: Patch coverage is 94.00000% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 60.09%. Comparing base (ddc20de) to head (02d02a1).

Files	Patch %	Lines
scripts/drevops/notify-webhook.sh	93.47%	3 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1273      +/-   ##
===========================================
- Coverage    69.58%   60.09%   -9.50%     
===========================================
  Files           40       41       +1     
  Lines         2999     3047      +48     
===========================================
- Hits          2087     1831     -256     
- Misses         912     1216     +304     

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[AlexSkrypnyk]

@tannguyen04
Thank you for working on this.

We need to significantly simplify this to avoid using tokens and jq. The headers and body should also be simplified.

The value of DREVOPS_NOTIFY_WEBHOOK_PAYLOAD (used for body) should come from the outside of the script.
By default, we should be providing a JSON string with values similar to what is used in notify-email.sh - please see how that message is created.
The fields are: message(friendly message as in notify-email.sh), environment_url, project, ref, timestamp.

The core of this script should be a simple curl call:

if ! curl -L -s -o /dev/null -w '%{http_code}' \
  -X "${DREVOPS_NOTIFY_WEBHOOK_METHOD}" \
  -H "${DREVOPS_NOTIFY_WEBHOOK_HEADERS}" \
  -d "${DREVOPS_NOTIFY_WEBHOOK_PAYLOAD}" \
  "${DREVOPS_NOTIFY_WEBHOOK_URL}" | grep -q "${DREVOPS_NOTIFY_WEBHOOK_RESPONSE_STATUS}"; then
  fail "Unable to send notification to webhook ${DREVOPS_NOTIFY_WEBHOOK_URL}."
  exit 1
fi