envoyproxy/envoy

Enable dynamic configuration for "xds-grpc" cluster

Open

#10 059 ouverte le 14 févr. 2020

Voir sur GitHub
 (9 commentaires) (0 réactions) (0 assignés)C++ (5 373 forks)batch import
area/xdsdesign proposalhelp wanted

Métriques du dépôt

Stars
 (27 997 stars)
Métriques de merge PR
 (Merge moyen 8j) (378 PRs mergées en 30 j)

Description

Description: In Envoy with Istio scenario, the back end xDS server Pilot is configured through "envoy_bootstrap_v2.json" like this:

{
        "name": "xds-grpc",
        "type": "STATIC",
        "dns_lookup_family": "V4_ONLY",
        "connect_timeout": "{{ .connect_timeout }}",
        "lb_policy": "RANDOM",
        ...
        "hosts": {{ .pilot_grpc_address_group }},
        ...
}

However, this is a static address and can't not be changed any longer. If we want to migrate the Pilot address to another, the Envoy has to reboot to reload the new Pilot address. I'm wandering if there is any way to dynamically change this address. Maybe by enabling configure file watching and reloading is a good practice.

Guide contributeur