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EIPを付与していないEC2インスタンスの起動時に割り振られたIPアドレスをslack通知する

Last updated at Posted at 2023-11-24

起動時にワンショットだけ起動するサービスを仕込んでおきます。以下ubuntuにて。

/etc/systemd/system/notify-slack.service

[Unit]
Description=Send IP to Slack at Startup
After=network.target

[Service]
Type=oneshot
ExecStart=/usr/local/bin/notify_ip_address_to_slack.sh

[Install]
WantedBy=multi-user.target

notify_ip_address_to_slack.sh:

#!/bin/bash

# パブリックIPを取得
IP_ADDRESS=$(curl -s http://169.254.169.254/latest/meta-data/public-ipv4)

# Slackに送信するメッセージを作成
MESSAGE="ステージング環境が起動しました。IPアドレス: $IP_ADDRESS"

# SlackのWebhook URL
WEBHOOK_URL="https://hooks.slack.com/services/XXX/XXX/XXX"

# SlackにPOSTリクエストを送信
curl -X POST -H 'Content-type: application/json' --data "{\"text\":\"$MESSAGE\"}" $WEBHOOK_URL

有効にする

$ sudo systemctl daemon-reload
$ sudo systemctl enable notify-slack.service
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