This Slack bot has two plugins. One of them helps to check the SSL certificate expiring for any accessible domain. Just send the message in the channel where the bot is invited like that:
@botname !ssl date google.com
Another plugin helps you to use IP calculator to check the IP addresses range, and so on. Just send the message to the bot like this:
@botname !ipcalc 10.0.0.0/24
docker build -t slackbot .
Pass slack token via Environment varialbe, using env file for docker container:
cat env.list
SLACK_TOKEN=xoxb-100000000001-1111111111111-INSERTTOKENHERE
docker run -d --env-file ./env.list slackbot
docker run -d --env-file ./env.list --add-host example.com:10.0.0.1 vensder/slack-bot