Startup documentation nitpicks

[tzaeschke]

I am on Ubuntu 22.04.4, bazel 7.0.2, go 1.22.0, AMD64. Source has been locally modified as proposed in #16.

I followed the instructions here: https://github.com/netsec-ethz/bootstrapper/

Some minor problems:

1. After building the packet, the packet is located in a subfolder bin (this is not a problem, it's just not documented).
2. Generating default configuration with ./scion-bootstrapper -help-config > ./bootstrapper.yml: The generated binary is called bootstrapper, not scion-bootstrapper.
3. sudo systemctl restart 'scion-bootstrapper@*.service' fails with an error. systemctl status [email protected] yields:

$ systemctl status [email protected]
× [email protected] - SCION Endhost Bootstrapper
     Loaded: loaded (/lib/systemd/system/[email protected]; enabled; vendor preset: enabled)
     Active: failed (Result: exit-code) since Fri 2024-02-23 13:35:44 CET; 18s ago
       Docs: https://www.scionlab.org
    Process: 1972478 ExecStart=/usr/bin/bootstrapper -iface docker0 -config bootstrapper.toml (code=exited, status=1/FAILURE)
   Main PID: 1972478 (code=exited, status=1/FAILURE)
        CPU: 17ms

Feb 23 13:35:44 til-X1 bootstrapper[1972478]: t=2024-02-23T13:35:44+0100 lvl=info msg="identical TRC version already exists, not overwriting" path=/etc/sc>
Feb 23 13:35:44 til-X1 bootstrapper[1972478]: t=2024-02-23T13:35:44+0100 lvl=info msg="identical TRC version already exists, not overwriting" path=/etc/sc>
Feb 23 13:35:44 til-X1 bootstrapper[1972478]: t=2024-02-23T13:35:44+0100 lvl=info msg="identical TRC version already exists, not overwriting" path=/etc/sc>
Feb 23 13:35:44 til-X1 bootstrapper[1972478]: t=2024-02-23T13:35:44+0100 lvl=info msg="Fetching signed topology" url=http://[2001:67c:10ec:3544::26]:8041/>
Feb 23 13:35:44 til-X1 bootstrapper[1972478]: t=2024-02-23T13:35:44+0100 lvl=eror msg="Failed to fetch signed topology from http://[2001:67c:10ec:3544::26>
Feb 23 13:35:44 til-X1 bootstrapper[1972478]: t=2024-02-23T13:35:44+0100 lvl=eror msg="Bootstrapping failed" err="status not OK: status: 404 Not Found"
Feb 23 13:35:44 til-X1 bootstrapper[1972478]: t=2024-02-23T13:35:44+0100 lvl=info msg="=====================> Service stopped bootstrapper"
Feb 23 13:35:44 til-X1 systemd[1]: [email protected]: Main process exited, code=exited, status=1/FAILURE
Feb 23 13:35:44 til-X1 systemd[1]: [email protected]: Failed with result 'exit-code'.
Feb 23 13:35:44 til-X1 systemd[1]: Failed to start SCION Endhost Bootstrapper.

The result error code (line 4 and 2nd line from end) is result: 'exit-code' where is should probably print the actual exit code instead of the string exit-code?