circleciのdeploy前後に通知する

notify_slack_on_deploy.sh

#!/bin/sh
set -e

case "$1" in
  "start" )
    title="Started deploying to $2!"
    title_link="${CIRCLE_BUILD_URL}"
    text="<$3|$2>へのdeployを開始します..."
    fallback="$2へのdeployを開始します"
    color="#28d7e5"
    ;;
  "finish" )
    title="Finished deploying to $2!"
    title_link="${CIRCLE_BUILD_URL}"
    text="<$3|$2>へのdeployが完了しました！"
    fallback="$2へのdeployが完了しました！"
    color="#28d7e5"
    ;;
  * )
    exit 1;
    ;;
esac

cat << EOS | curl -XPOST ${SLACK_WEBHOOK_URL} -d @-
{
  "attachments": [
    {
      "title":      "${title}",
      "title_link": "${title_link}",
      "text":       "${text}",
      "fallback":   "${fallback}",
      "color":      "${color}"
    }
  ]
}
EOS