Add support for openrc

[seabass6969]

I have try to install cloudflared tunneling service on my Gentoo(openrc) machine with cloudflare compile from source.

the system thought I am using sysv which I am not. Error:

cephas@gentoobox ~ % doas cloudflared service install eyxxxxxxxxxxx
doas (cephas@gentoobox) password:
2022-07-24T01:59:17Z INF Using SysV
2022-07-24T01:59:17Z ERR error generating system template error="cloudflared service is already installed at /etc/init.d/cloudflared; if you are running a cloudflared tunnel, you can point it to multiple origins, avoiding the need to run more than one cloudflared service in the same machine; otherwise if you are really sure, you can do `cloudflared service uninstall` to clean up the existing service and then try again this command"
cloudflared service is already installed at /etc/init.d/cloudflared; if you are running a cloudflared tunnel, you can point it to multiple origins, avoiding the need to run more than one cloudflared service in the same machine; otherwise if you are really sure, you can do `cloudflared service uninstall` to clean up the existing service and then try again this command

prehaps add support for openrc would allow gentoo server able to assess the system.

[sudarshan-reddy]

The error message isn’t about sysV. It looks like you already have cloudflared installed as a service.