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| author | Anton Tolchanov <anton@tailscale.com> | 2023-12-12 19:14:25 +0000 |
|---|---|---|
| committer | Anton Tolchanov <1687799+knyar@users.noreply.github.com> | 2023-12-13 14:30:16 +0000 |
| commit | 869b34ddeb4175df2b08cdc3d6cd9a350ec81059 (patch) | |
| tree | a02eca4ed2bfccd954889a93c1346e535862661f | |
| parent | affe11c503dd4dc72a184bef7b4b88b59a84899c (diff) | |
| download | tailscale-869b34ddeb4175df2b08cdc3d6cd9a350ec81059.tar.xz tailscale-869b34ddeb4175df2b08cdc3d6cd9a350ec81059.zip | |
prober: log HTTP response body on failure
Signed-off-by: Anton Tolchanov <anton@tailscale.com>
| -rw-r--r-- | prober/http.go | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/prober/http.go b/prober/http.go index c3172a132..5c3355e46 100644 --- a/prober/http.go +++ b/prober/http.go @@ -53,7 +53,12 @@ func probeHTTP(ctx context.Context, url string, want []byte) error { } if !bytes.Contains(bs, want) { - return fmt.Errorf("body of %q does not contain %q", url, want) + // Log response body, but truncate it if it's too large; the limit + // has been chosen arbitrarily. + if maxlen := 300; len(bs) > maxlen { + bs = bs[:maxlen] + } + return fmt.Errorf("body of %q does not contain %q (got: %q)", url, want, string(bs)) } return nil |