slack + AWS example

ec2-slack-user-data.sh

#!/bin/bash

# put this in ec2 ubuntu user-data

mkdir /home/ubuntu/script/
cat <<'EOF' >> /home/ubuntu/script/slack.sh

#!/bin/bash
ip=`/usr/bin/curl -s -w '\n' http://169.254.169.254/latest/meta-data/public-ipv4`
instance=`/usr/bin/curl -s -w '\n' http://169.254.169.254/latest/meta-data/instance-id`
url="WEBHOOK URL HERE"
name="YOUR NAME HERE"

payload="{\"text\": \"`date`: $name  $instance  ($ip) started\"}"

/usr/bin/curl -X POST -H 'Content-type: application/json' \
	--data "$payload" $url
EOF

chmod +x /home/ubuntu/script/slack.sh

cat <<'EOF' >> /etc/systemd/system/slack.service
[Unit]
Description=Slack IP Notification
Wants=network-online.target
After=network-online.target

[Service]
Type=oneshot
WorkingDirectory=/home/ubuntu/script
ExecStart=/home/ubuntu/script/slack.sh

[Install]
WantedBy=multi-user.target
EOF

systemctl enable slack.service
systemctl status slack

/home/ubuntu/script/slack.sh

send-message.sh

echo <<'EOF' > send-msg.sh
url="YOUR SLACK incoming-webhook URL HERE"

if [ $# -ge 1 ]; then
msg=$@
else
msg="Hello! I am aws study bot"
fi

payload='{"text": "'$msg'"}'
echo Try send $payload to Slack channel
curl -X POST -H 'Content-type: application/json' \
		 --data "$payload" $url
EOF

chmod +x ./send-msg.sh
./send-msg.sh

send-slack.py

import simplejson as json
import requests

webhook_url = 'hookhook"

msg = {
    "attachments": [
        {
            "pretext": "message from honux-bot",
            "title": "우아한 형제들",
            "title_link": "http://www.woowahan.com/",
            "text": "치킨은 살찌지 않아요.",
            "color": "#7CD197"
        }
    ]
}

response = requests.post(
    webhook_url, data=json.dumps(msg),
    headers={'Content-Type': 'application/json'})

if response.status_code != 200:
    raise ValueError(
        'Request to slack returned an error %s, the response is:\n%s'
        % (response.status_code, response.text)
    )