The target gw.bsc.es doesn't reply to our ICMP probes from hut. However,
the anella hop in the tracepath is a good candidate to identify cuts
between the login and the provider and between the provider and external
hosts like Google or Cloudflare DNS.
Reviewed-By: Aleix Roca Nonell <aleix.rocanonell@bsc.es>
These probes check if we can reach several targets via ICMP, which is
not proxied, so they can be used to see if ICMP forwarding is working in
the login node.
In particular, we test if we can reach the Google (8.8.8.8) and
Cloudflare (1.1.1.1) DNS servers, the BSC gateway which responds to ping
only from the intranet and the login node (ssfhead).
Reviewed-By: Aleix Roca Nonell <aleix.rocanonell@bsc.es>
The alerts need to contact the slack endpoint, so we add the proxy
environment variables to the grafana systemd service.
Reviewed-By: Aleix Roca Nonell <aleix.rocanonell@bsc.es>
By default it was trying to reach the targets using the default gateway,
but since the electrical cut of 2023-10-20, the login node has not
enabled forwarding again. So better if we don't rely on it.
Reviewed-By: Aleix Roca Nonell <aleix.rocanonell@bsc.es>
This is done to prevent accidental evaluations where the nixpkgs input
of bscpkgs is still pointing to a different version that the one
specified in the jungle flake. Instead use jungle#bscpkgs.X to get a
package from bscpkgs.
