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https://github.com/zigzagak/ngx_http_upsync_upstream

Nginx dynamic upstream synced by http request
https://github.com/zigzagak/ngx_http_upsync_upstream

dynamic-upstream nginx service-discovery upstream

Last synced: 2 months ago
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Nginx dynamic upstream synced by http request

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ngx_http_upsync_upstream - Upstream synced by http request.

# Quick Start

## Nginx config

```nginx
http {
healthcheck_buffer_size 128k;

upstream app1 {
zone shm_app1 128k;

upsync localhost:8888/registry/nodes?service=app1;
upsync_header Accept text/plain;

upsync_interval 10s;
upsync_timeout 10s;

upsync_defaults max_conns=10 max_fails=1 fail_timeout=30s;
upsync_file app1.peers;

dns_update 60s;
dns_add_down on;

check passive type=http rise=2 fall=2 timeout=5000 interval=10;
check_request_uri GET /health;
check_response_codes 200;
check_response_body alive;
}

upstream app2 {
zone shm_app2 128k;

upsync localhost:8888/registry/nodes?service=app2;
# Admin:1111
upsync_header Authorization "Basic QWRtaW46MTExMQ==";
upsync_header Accept text/plain;

upsync_interval 10s;
upsync_timeout 10s;

upsync_defaults max_conns=10 max_fails=1 fail_timeout=30s;
upsync_file app2.peers;

dns_update 60s;
dns_add_down on;

check passive type=http rise=2 fall=2 timeout=5000 interval=10;
check_request_uri GET /health;
check_response_codes 200;
check_response_body alive;
}

upstream app3 {
zone shm_app3 128k;

upsync localhost:8888/registry/app3;
# Admin:1111
upsync_header Accept text/plain;

upsync_interval 10s;
upsync_timeout 10s;

upsync_defaults max_conns=10 max_fails=1 fail_timeout=30s;
upsync_file app3.peers;

dns_update 60s;
dns_add_down on;

check passive type=http rise=2 fall=2 timeout=5000 interval=10;
check_request_uri GET /health;
check_response_codes 200;
check_response_body alive;
}

server {
listen 6000;

location /dynamic {
dynamic_upstream;
}
}

server {
# app1
listen 8001;
listen 8002;
listen 8003;

#app2
listen 9001;
listen 9002;
listen 9003;

location = /health {
return 200 'alive';
}

location / {
access_log off;
return 200 'hello';
}
}

server {
listen 10000;

access_log off;

location /app1 {
proxy_pass http://app1;
}

location /app2 {
proxy_pass http://app2;
}
}

server {
listen 8888;

location = /registry/nodes {
if ($arg_service = app1) {
echo "localhost:8001 weight=1 max_conns=10 max_fails=2 fail_timeout=10s";
echo "localhost:8002 weight=2 max_conns=20 max_fails=2 fail_timeout=5s";
echo "localhost:8003 max_conns=50 max_fails=2 fail_timeout=10s backup";
}
if ($arg_service = app2) {
echo "localhost:9001";
echo "localhost:9002";
echo "localhost:9002 backup";
}
}

location = /registry/app3 {
alias conf/app3.txt;
}

location /dynamic {
dynamic_upstream;
}

location /healthcheck/get {
healthcheck_get;
}

location /healthcheck/status {
healthcheck_status;
}
}
}
````