Gitea Jenkins Ambassador

gitea_jenkins_ambassador.service

#Create this file in /etc/systemd/system/gitea_jenkins_ambassador.service
#Enable service with: sudo systemctl enable gitea_jenkins_ambassador.service
#Start service with: sudo systemctl start gitea_jenkins_ambassador.service
#Check all ist fine: sudo sytemctl status gitea_jenkins_ambassador.service

[Unit]
Description=Wrapper for GET hooks from systemd to Jenkins

[Service]
ExecStart=/bin/bash /usr/local/bin/gitea_jenkins_ambassador.sh

[Install]
WantedBy=multi-user.target

gitea_jenkins_ambassador.sh

#!/bin/bash

#Simple script that listens for any incomming GET request from a Gitea Webhook, cuts off the payload and calls
#the real webhook to a Jenkins Job. This is a workaround because there is - as of Feb. 2024 - no webhook support
#for Jenkins in Gitea itself.

#Install with e.g.: sudo install ./gitea_jenkins_ambassador.sh /usr/local/bin/gitea_jenkins_ambassador.sh
#Also see the simple Systemd Service, so this script is started automatically.

#With this setup, create or change a Gitea webhook to a Jenkins job the same way, as you would when calling Jenkins
#directly, with all the parameters etc. Only the host and port needs to be to where this script is running.
#It would be best to have this script running on the same server, where Jenkins is installed. This way the webhook URLs
#would only change with respect to their prots.

#Finally, make sure you review the curl command and the end of this scipt. This is the part, where you put your real
#Jenkins server host.


### Create the response FIFO
rm -f response
mkfifo response

function handleRequest() {
    while read line; do
        echo $line
        trline=$(echo $line | tr -d '[\r\n]')

        [ -z "$trline" ] && break

        HEADLINE_REGEX='(.*?)\s(.*?)\sHTTP.*?'

        [[ "$trline" =~ $HEADLINE_REGEX ]] &&
            REQUEST=$(echo $trline | sed -E "s/$HEADLINE_REGEX/\2/")
    done

    # echo -e 'HTTP/1.1 200\r\n\r\n\r\n</h1>PONG</h1>' > response
    get=$(echo "$REQUEST" | sed 's/payload=.*&//')
    ##Chang to your server!
    curl https://build:8443$get && echo -e "HTTP/1.1 200\r\n" > response
}


echo 'Listening on 3000...'

while true; do
	cat response | nc -ln 3000 | handleRequest
done