Display the correct failing host on worker boot

[josegomezr]

When a worker cannot establish a websocket connection the log line reports the URL of the REST API, and not the websocket endpoint where the connection failed.

Old output:

[info] Registering with openQA 127.0.0.1:9526
[info] Establishing ws connection via ws://127.0.0.1:9526/api/v1/ws/1
[warn] Unable to upgrade to ws connection via http://127.0.0.1:9526/api/v1/ws/1 - trying again in 10 seconds

New output:

[info] Registering with openQA 127.0.0.1:9526
[info] Establishing ws connection via ws://127.0.0.1:9526/api/v1/ws/1
[warn] Unable to upgrade to ws connection via http://127.0.0.1:9526/api/v1/ws/1, Connection refused in http://localhost:9527/ws/1 - trying again in 10 seconds

Notice the addition of the network error & the final request url where the failre happened.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 98.31%. Comparing base (f8f5bc4) to head (cc479f6).
Report is 1254 commits behind head on master.

Files with missing lines	Patch %	Lines
lib/OpenQA/Worker/WebUIConnection.pm	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5352      +/-   ##
==========================================
- Coverage   98.32%   98.31%   -0.01%     
==========================================
  Files         389      389              
  Lines       37319    37321       +2     
==========================================
  Hits        36693    36693              
- Misses        626      628       +2     

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[okurz]

So the next learning opportunity for you: Extend the tests to make the coverage check https://github.com/os-autoinst/openQA/pull/5352/checks?check_run_id=18141921282 happy :)

[josegomezr]

So the next learning opportunity for you: Extend the tests to make the coverage check https://github.com/os-autoinst/openQA/pull/5352/checks?check_run_id=18141921282 happy :)

I tried but got stuck on getting connection refused and not the problem at hand 😅

[okurz]

Please use the post-if to be consistent with other lines

[Martchus]

You can just use $error for simplicity and there should always be a message:

Suggested change

	if ($tx->res->error && $tx->res->error->{message}) {
	$error_message .= sprintf(", %s in %s", $tx->res->error->{message}, $tx->req->url);
	}
	$error_message .= ", code $error->{code}" if ($error && $error->{code});
	if ($error) {
	$error_message .= ", $error->{message}";
	$error_message .= ", code $error->{code}" if $error->{code};
	}

I have also removed the URL because it is already part of the error message and I would just change that other part. However, if you disagree and want the original URL still being logged that's fine as well.

[Martchus]

I would just alter the URL here:

Suggested change

	my $error_message = "Unable to upgrade to ws connection via $websocket_url";
	my $error_message = 'Unable to upgrade to ws connection via ' . $tx->req->url;

The original URL is still logged in the "Establishing …" line so there's nothing lost in my opinion.