Crabe Life

Hello world like service, for educational purposes

Description

http://crabe.life is a very simple statically compiled, 4MB service in Go.

It's a great candidate to get first experience in application hosting, especially in Cloud native context.

Crabe.life can run as Docker container or as simple linux process with systemd.

Systemd setup

Download crabe.life binary (releases page)

wget http://[TODO]
chmod +x crabe-life_1.0
mv crabe-life_1.0 /usr/local/bin/crabe-life

Create systemd service

cat << EOF | sudo tee /lib/systemd/system/crabe-life.service
[Unit]
Description=Crabe Life

[Service]
ExecStart=/usr/local/bin/crabe-life

[Install]
WantedBy=multi-user.target

EOF

Enable systemd service

sudo ln -s /lib/systemd/system/crabe-life.service  /etc/systemd/system/crabe-life.service
sudo systemctl daemon-reload
sudo systemctl enable crabe-life
sudo systemctl start crabe-life
sudo systemctl status crabe-life

Docker setup

docker build -t crabe-life:latest .
docker run -p 8080:8080 crabe-life:latest

Things you probably want to know

There is a /healthz route that returns 200 OK. You probably want to use it for probing.
The crab gif and cache headers are configurable (see options crabe-life -h)

Usage of crabe-life:
-cache-ttl int
        time in second to cache HTTP response
-crab-url string
        url to crab gif (default "https://i.gifer.com/3QZn.gif")

Licence

Public domain. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission

yanc0/crabe-life

README