Snap package creates systemd services which cannot run

[fertkir]

Here are declared 2 daemons, which are enabled after the snap is installed:
https://github.com/shadowsocks/shadowsocks-rust/blob/master/snap/snapcraft.yaml#L16

On system start these daemons fail to start due to missing configs:

shadowsocks-rust.ssserver-daemon[2392]: missing proxy servers, consider specifying it by --server-addr, --encrypt-method, --password

I'd rather the snap either not contain the services, or have them disabled by default.

[zonyitoo]

They were copied from https://github.com/shadowsocks/shadowsocks-libev/blob/master/snap/snapcraft.yaml .

Could you help to see whether all the fields in the yaml are correct or as users' expected?

[fertkir]

I don't know about other fields, since I've never created snaps myself.
But during system boot a receive errors from systemd. And the reason is missing configs.

❯ systemctl status snap.shadowsocks-rust.ss*
× snap.shadowsocks-rust.sslocal-daemon.service - Service for snap application shadowsocks-rust.sslocal-daemon
     Loaded: loaded (/etc/systemd/system/snap.shadowsocks-rust.sslocal-daemon.service; enabled; preset: disabled)
     Active: failed (Result: exit-code) since Mon 2023-01-16 10:17:59 +05; 3h 3min ago
   Duration: 21ms
    Process: 2711 ExecStart=/usr/bin/snap run shadowsocks-rust.sslocal-daemon (code=exited, status=64)
   Main PID: 2711 (code=exited, status=64)
        CPU: 24ms

Jan 16 10:17:59 fedora systemd[1]: snap.shadowsocks-rust.sslocal-daemon.service: Scheduled restart job, restart counter is at 5.
Jan 16 10:17:59 fedora systemd[1]: Stopped snap.shadowsocks-rust.sslocal-daemon.service - Service for snap application shadowsocks-rust.sslocal-daemon.
Jan 16 10:17:59 fedora systemd[1]: snap.shadowsocks-rust.sslocal-daemon.service: Start request repeated too quickly.
Jan 16 10:17:59 fedora systemd[1]: snap.shadowsocks-rust.sslocal-daemon.service: Failed with result 'exit-code'.
Jan 16 10:17:59 fedora systemd[1]: Failed to start snap.shadowsocks-rust.sslocal-daemon.service - Service for snap application shadowsocks-rust.sslocal-daemo>

× snap.shadowsocks-rust.ssserver-daemon.service - Service for snap application shadowsocks-rust.ssserver-daemon
     Loaded: loaded (/etc/systemd/system/snap.shadowsocks-rust.ssserver-daemon.service; enabled; preset: disabled)
     Active: failed (Result: exit-code) since Mon 2023-01-16 10:17:59 +05; 3h 3min ago
   Duration: 30ms
    Process: 2719 ExecStart=/usr/bin/snap run shadowsocks-rust.ssserver-daemon (code=exited, status=64)
   Main PID: 2719 (code=exited, status=64)
        CPU: 21ms

Jan 16 10:17:59 fedora systemd[1]: snap.shadowsocks-rust.ssserver-daemon.service: Scheduled restart job, restart counter is at 5.
Jan 16 10:17:59 fedora systemd[1]: Stopped snap.shadowsocks-rust.ssserver-daemon.service - Service for snap application shadowsocks-rust.ssserver-daemon.
Jan 16 10:17:59 fedora systemd[1]: snap.shadowsocks-rust.ssserver-daemon.service: Start request repeated too quickly.
Jan 16 10:17:59 fedora systemd[1]: snap.shadowsocks-rust.ssserver-daemon.service: Failed with result 'exit-code'.
Jan 16 10:17:59 fedora systemd[1]: Failed to start snap.shadowsocks-rust.ssserver-daemon.service - Service for snap application shadowsocks-rust.ssserver-dae>
lines 1-27/27 (END)

Please check my pull request, if it's okay to disable the services.