Function tryGettingCoderProviderStacktrace

provisioner/terraform/provision.go:464–494

tryGettingCoderProviderStacktrace attempts to dial a special pprof endpoint we added to terraform-provider-coder in https://github.com/coder/terraform-provider-coder/pull/295 which shipped in v1.0.4. It will return the stacktraces of the provider, which will hopefully allow us to figure out why it

(sess *provisionersdk.Session)

// shipped in v1.0.4.  It will return the stacktraces of the provider, which will hopefully allow us
// to figure out why it hasn't exited.
func tryGettingCoderProviderStacktrace(sess *provisionersdk.Session) string {
	path := filepath.Clean(filepath.Join(sess.Files.WorkDirectory(), "../.coder/pprof"))
	sess.Logger.Info(sess.Context(), "attempting to get stack traces", slog.F("path", path))
	c := http.Client{
		Transport: &http.Transport{
			DialContext: func(ctx context.Context, _, _ string) (net.Conn, error) {
				d := net.Dialer{}
				return d.DialContext(ctx, "unix", path)
			},
		},
	}
	req, err := http.NewRequestWithContext(sess.Context(), http.MethodGet,
		"http://localhost/debug/pprof/goroutine?debug=2", nil)
	if err != nil {
		sess.Logger.Error(sess.Context(), "error creating GET request", slog.Error(err))
		return ""
	}
	resp, err := c.Do(req)
	if err != nil {
		// Only log at Info here, since we only added the pprof endpoint to terraform-provider-coder
		// in v1.0.4
		sess.Logger.Info(sess.Context(), "could not GET stack traces", slog.Error(err))
		return ""
	}
	defer resp.Body.Close()
	stacktraces, err := io.ReadAll(resp.Body)
	if err != nil {
		sess.Logger.Error(sess.Context(), "could not read stack traces", slog.Error(err))
	}
	return string(stacktraces)
}

// gitAuthAccessTokenEnvironmentVariable is copied from
// github.com/coder/terraform-provider-coder/provider.GitAuthAccessTokenEnvironmentVariable@v1.0.4.