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caddy/caddytest/integration/caddyfile_adapt/reverse_proxy_dynamic_upstreams.txt
Matt Holt ab0455922a
reverseproxy: Dynamic upstreams (with SRV and A/AAAA support) (#4470)
* reverseproxy: Begin refactor to enable dynamic upstreams

Streamed here: https://www.youtube.com/watch?v=hj7yzXb11jU

* Implement SRV and A/AAA upstream sources

Also get upstreams at every retry loop iteration instead of just once
before the loop. See #4442.

* Minor tweaks from review

* Limit size of upstreams caches

* Add doc notes deprecating LookupSRV

* Provision dynamic upstreams

Still WIP, preparing to preserve health checker functionality

* Rejigger health checks

Move active health check results into handler-specific Upstreams.

Improve documentation regarding health checks and upstreams.

* Deprecation notice

* Add Caddyfile support, use `caddy.Duration`

* Interface guards

* Implement custom resolvers, add resolvers to http transport Caddyfile

* SRV: fix Caddyfile `name` inline arg, remove proto condition

* Use pointer receiver

* Add debug logs

Co-authored-by: Francis Lavoie <lavofr@gmail.com>
2022-03-06 17:43:39 -07:00

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:8884 {
reverse_proxy {
dynamic a foo 9000
}
reverse_proxy {
dynamic a {
name foo
port 9000
refresh 5m
resolvers 8.8.8.8 8.8.4.4
dial_timeout 2s
dial_fallback_delay 300ms
}
}
}
:8885 {
reverse_proxy {
dynamic srv _api._tcp.example.com
}
reverse_proxy {
dynamic srv {
service api
proto tcp
name example.com
refresh 5m
resolvers 8.8.8.8 8.8.4.4
dial_timeout 1s
dial_fallback_delay -1s
}
}
}
----------
{
"apps": {
"http": {
"servers": {
"srv0": {
"listen": [
":8884"
],
"routes": [
{
"handle": [
{
"dynamic_upstreams": {
"name": "foo",
"port": "9000",
"source": "a"
},
"handler": "reverse_proxy"
},
{
"dynamic_upstreams": {
"dial_fallback_delay": 300000000,
"dial_timeout": 2000000000,
"name": "foo",
"port": "9000",
"refresh": 300000000000,
"resolver": {
"addresses": [
"8.8.8.8",
"8.8.4.4"
]
},
"source": "a"
},
"handler": "reverse_proxy"
}
]
}
]
},
"srv1": {
"listen": [
":8885"
],
"routes": [
{
"handle": [
{
"dynamic_upstreams": {
"name": "_api._tcp.example.com",
"source": "srv"
},
"handler": "reverse_proxy"
},
{
"dynamic_upstreams": {
"dial_fallback_delay": -1000000000,
"dial_timeout": 1000000000,
"name": "example.com",
"proto": "tcp",
"refresh": 300000000000,
"resolver": {
"addresses": [
"8.8.8.8",
"8.8.4.4"
]
},
"service": "api",
"source": "srv"
},
"handler": "reverse_proxy"
}
]
}
]
}
}
}
}
}