Merge branch '29036-use-slack-service-to-notify-of-failed-pipelines' into 'master'

Remove notify slack job

Closes #29036

See merge request !9709

.gitlab-ci.yml

@@ -502,22 +502,6 @@ trigger_docs:
     - master@gitlab-org/gitlab-ce
     - master@gitlab-org/gitlab-ee
 
-# Notify slack in the end
-notify:slack:
-  stage: post-test
-  <<: *dedicated-runner
-  variables:
-    SETUP_DB: "false"
-    USE_BUNDLE_INSTALL: "false"
-  script:
-    - ./scripts/notify_slack.sh "#development" "Build on \`$CI_COMMIT_REF_NAME\` failed! Commit \`$(git log -1 --oneline)\` See <https://gitlab.com/gitlab-org/$(basename "$PWD")/commit/"$CI_COMMIT_SHA"/pipelines>"
-  when: on_failure
-  only:
-    - master@gitlab-org/gitlab-ce
-    - tags@gitlab-org/gitlab-ce
-    - master@gitlab-org/gitlab-ee
-    - tags@gitlab-org/gitlab-ee
-
 pages:
   before_script: []
   stage: pages

scripts/notify_slack.sh

@@ -1,13 +0,0 @@
-#!/bin/sh
-# Sends Slack notification ERROR_MSG to CHANNEL
-# An env. variable CI_SLACK_WEBHOOK_URL needs to be set.
-
-CHANNEL=$1
-ERROR_MSG=$2
-
-if [ -z "$CHANNEL" ] || [ -z "$ERROR_MSG" ] || [ -z "$CI_SLACK_WEBHOOK_URL" ]; then
-    echo "Missing argument(s) - Use: $0 channel message"
-    echo "and set CI_SLACK_WEBHOOK_URL environment variable."
-else
-    curl -X POST --data-urlencode 'payload={"channel": "'"$CHANNEL"'", "username": "gitlab-ci", "text": "'"$ERROR_MSG"'", "icon_emoji": ":gitlab:"}' "$CI_SLACK_WEBHOOK_URL"
-fi