Add Fail2Ban Telegram action configuration

action.d/telegram.conf

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+## Version 2024/11/07
+# Fail2Ban configuration file
+#
+# Author: smith8ca
+#
+# Add the following to jail.local (uncommented) to apply the telegram action to all bans with all jails
+# Update the bot_token and chat_id (within the Init section) with your own values from Telegram's BotFather
+#
+#
+
+[Definition]
+
+# Option:  actionstart
+# Notes.:  command executed once at the start of Fail2Ban.
+# Values:  CMD
+#
+# Comment out this action as necessary
+actionstart = curl -X POST -H Content-Type:application/json <url><bot_token>/sendMessage \
+    --data '{ "text": "Started <name>", "chat_id": "<chat_id>" }'
+
+# Option:  actionstop
+# Notes.:  command executed once at the end of Fail2Ban
+# Values:  CMD
+#
+# Comment out this action as necessary
+actionstop = curl -X POST -H Content-Type:application/json <url><bot_token>/sendMessage \
+    --data '{ "text": "Stopped <name>", "chat_id": "<chat_id>" }'
+
+# Option:  actioncheck
+# Notes.:  command executed once before each actionban command
+# Values:  CMD
+#
+actioncheck = 
+
+# Option:  actionban
+# Notes.:  command executed when banning an IP. Take care that the
+#          command is executed with Fail2Ban user rights.
+# Tags:    See jail.conf(5) man page
+# Values:  CMD
+#
+actionban = curl -X POST -H Content-Type:application/json <url><bot_token>/sendMessage \
+    --data '{ "text": "<name>: <ip> got banned for <bantime> seconds after <failures> tries.\n\nUnban command:\nfail2ban-client unban <ip>", "chat_id": "<chat_id>" }'
+
+# Option:  actionunban
+# Notes.:  command executed when unbanning an IP. Take care that the
+#          command is executed with Fail2Ban user rights.
+# Tags:    See jail.conf(5) man page
+# Values:  CMD
+#
+actionunban = curl -X POST -H Content-Type:application/json <url><bot_token>/sendMessage \
+    --data '{ "text": "<name>: <ip> is now unbanned", "chat_id": "<chat_id>" }'
+
+
+[Init]
+
+# Option:  bot_token
+# Notes.:  The token of the telegram bot
+# Values:  [ STRING ]
+#
+bot_token = 
+
+# Option:  chat_id
+# Notes.:  The chat id of the telegram user or group
+# Values:  [ STRING ]
+#
+chat_id = 
+
+# Option:  url
+# Notes.:  The url of the telegram API
+# Values:  [ STRING ]
+#
+url = https://api.telegram.org/bot