Commit Graph

3 Commits (6f694da91286ba5b86912d7237f57cd3216739bb)

Author SHA1 Message Date
Anton Tolchanov 5336362e64 prober: export probe class and metrics from bandwidth prober
- Wrap each prober function into a probe class that allows associating
  metric labels and custom metrics with a given probe;
- Make sure all existing probe classes set a `class` metric label;
- Move bandwidth probe size from being a metric label to a separate
  gauge metric; this will make it possible to use it to calculate
  average used bandwidth using a PromQL query;
- Also export transfer time for the bandwidth prober (more accurate than
  the total probe time, since it excludes connection establishment
  time).

Updates tailscale/corp#17912

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
8 months ago
Andrew Dunham 7d7d159824 prober: support creating multiple probes in ForEachAddr
So that we can e.g. check TLS on multiple ports for a given IP.

Updates tailscale/corp#16367

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I81d840a4c88138de1cbb2032b917741c009470e6
8 months ago
Andrew Dunham ac574d875c prober: add helper function to check all IPs for a DNS hostname
This allows us to check all IP addresses (and address families) for a
given DNS hostname while dynamically discovering new IPs and removing
old ones as they're no longer valid.

Also add a testable example that demonstrates how to use it.

Alternative to #11610
Updates tailscale/corp#16367

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I6d6f39bafc30e6dfcf6708185d09faee2a374599
8 months ago