Comments (3)
phlax
commented on June 27, 2024
i think the answer is no, but probably it would be useful if we did
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RyanTheOptimist
commented on June 27, 2024
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mousimin
commented on June 27, 2024
I tried the following steps to test the behavior:
- Configure envoy using two virtual_hosts(s1.example.com/s2.example.com) and two clusters(cluster_1/cluster_2), each cluster contains 6 endpoints(cluster_1->e1/e2/e3/e4/e5/e6, cluster_2->e1/e2/e3/e4/e5/e6), the endpoints have different zone settings, s1.example.com maps to cluster_1 and s2.example.com maps to cluster_2
- Run the programs. The program behind cluster_1/cluster_2 is very simple, program1(cluster_1) presents a /query API which will call program2(cluster_2)'s / API, and get the zone setting of the node it's running on and the node program2(cluster_2) is running on, so we can see the request will go cross zone or not.
- call https://s1.example.com/query, unfortunately I see the request goes cross the zone
the output will be gic-seli->gic-seli or gic-sero->gic-seli, but never gic-sero->gic-sero or gic-seli->gic-sero
Anything I missed?
The config files I used(Only essential parts are listed)
#########envoy.yaml#########
cluster_manager:
local_cluster_name: "cluster_1"
static_resources:
listeners:
- name: listener_tcp_443
address:
socket_address:
address: "::"
ipv4_compat: true
port_value: 443
filter_chains:
- filter_chain_match:
server_names:
- "*.example.com"
filters:
- name: envoy.filters.network.http_connection_manager
typed_config:
"@type": type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
route_config:
name: local_route
virtual_hosts:
- name: vhost_1
require_tls: ALL
domains:
- "s1.example.com"
- "s1.example.com:443"
routes:
- match:
prefix: "/"
route:
auto_host_rewrite: true
cluster: cluster_1
- name: vhost_2
require_tls: ALL
domains:
- "s2.example.com"
- "s2.example.com:443"
routes:
- match:
prefix: "/"
route:
auto_host_rewrite: true
cluster: cluster_2
stat_prefix: ingress_https
clusters:
- name: cluster_1
lb_policy: round_robin
common_lb_config:
zone_aware_lb_config:
min_cluster_size: 6
eds_cluster_config:
eds_config:
path_config_source:
path: '/local/envoy/conf/eds_c1.yaml'
type: EDS
- name: cluster_2
lb_policy: round_robin
common_lb_config:
zone_aware_lb_config:
min_cluster_size: 6
eds_cluster_config:
eds_config:
path_config_source:
path: '/local/envoy/conf/eds_c2.yaml'
type: EDS
#########eds_c1.yaml#########
version_info: "0"
resources:
- "@type": type.googleapis.com/envoy.config.endpoint.v3.ClusterLoadAssignment
cluster_name: cluster_1
endpoints:
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 100.76.120.1
port_value: 30001
health_check_config:
port_value: 30001
locality:
region: gic-seli
zone: "11"
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 100.76.120.2
port_value: 30001
health_check_config:
port_value: 30001
locality:
region: gic-seli
zone: "12"
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 100.76.120.3
port_value: 30001
health_check_config:
port_value: 30001
locality:
region: gic-seli
zone: "13"
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 100.76.120.4
port_value: 30001
health_check_config:
port_value: 30001
locality:
region: gic-sero
zone: "21"
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 100.76.120.5
port_value: 30001
health_check_config:
port_value: 30001
locality:
region: gic-sero
zone: "22"
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 100.76.120.6
port_value: 30001
health_check_config:
port_value: 30001
locality:
region: gic-sero
zone: "23"
#########eds_c2.yaml#########
version_info: "0"
resources:
- "@type": type.googleapis.com/envoy.config.endpoint.v3.ClusterLoadAssignment
cluster_name: cluster_2
endpoints:
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 100.76.120.1
port_value: 30000
health_check_config:
port_value: 30000
locality:
region: gic-seli
zone: "11"
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 100.76.120.2
port_value: 30000
health_check_config:
port_value: 30000
locality:
region: gic-seli
zone: "12"
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 100.76.120.3
port_value: 30000
health_check_config:
port_value: 30000
locality:
region: gic-seli
zone: "13"
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 100.76.120.4
port_value: 30000
health_check_config:
port_value: 30000
locality:
region: gic-sero
zone: "21"
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 100.76.120.5
port_value: 30000
health_check_config:
port_value: 30000
locality:
region: gic-sero
zone: "22"
- lb_endpoints:
- endpoint:
address:
socket_address:
address: 100.76.120.6
port_value: 30000
health_check_config:
port_value: 30000
locality:
region: gic-sero
zone: "23"
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