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-rwxr-xr-xmodules/caddyhttp/reverseproxy/module.go34
-rwxr-xr-xmodules/caddyhttp/reverseproxy/upstream.go22
2 files changed, 41 insertions, 15 deletions
diff --git a/modules/caddyhttp/reverseproxy/module.go b/modules/caddyhttp/reverseproxy/module.go
index 2e6a338..21aca1d 100755
--- a/modules/caddyhttp/reverseproxy/module.go
+++ b/modules/caddyhttp/reverseproxy/module.go
@@ -16,12 +16,38 @@ package reverseproxy
import (
"github.com/caddyserver/caddy/v2"
+ "github.com/caddyserver/caddy/v2/caddyconfig/httpcaddyfile"
+ "github.com/caddyserver/caddy/v2/modules/caddyhttp"
)
-// Register caddy module.
func init() {
- caddy.RegisterModule(caddy.Module{
+ caddy.RegisterModule(new(LoadBalanced))
+ httpcaddyfile.RegisterHandlerDirective("reverse_proxy", parseCaddyfile) // TODO: "proxy"?
+}
+
+// CaddyModule returns the Caddy module information.
+func (*LoadBalanced) CaddyModule() caddy.ModuleInfo {
+ return caddy.ModuleInfo{
Name: "http.handlers.reverse_proxy",
- New: func() interface{} { return new(LoadBalanced) },
- })
+ New: func() caddy.Module { return new(LoadBalanced) },
+ }
+}
+
+// parseCaddyfile sets up the handler from Caddyfile tokens. Syntax:
+//
+// proxy [<matcher>] <to>
+//
+// TODO: This needs to be finished. It definitely needs to be able to open a block...
+func parseCaddyfile(h httpcaddyfile.Helper) (caddyhttp.MiddlewareHandler, error) {
+ lb := new(LoadBalanced)
+ for h.Next() {
+ allTo := h.RemainingArgs()
+ if len(allTo) == 0 {
+ return nil, h.ArgErr()
+ }
+ for _, to := range allTo {
+ lb.Upstreams = append(lb.Upstreams, &UpstreamConfig{Host: to})
+ }
+ }
+ return lb, nil
}
diff --git a/modules/caddyhttp/reverseproxy/upstream.go b/modules/caddyhttp/reverseproxy/upstream.go
index 10df80b..1f0693e 100755
--- a/modules/caddyhttp/reverseproxy/upstream.go
+++ b/modules/caddyhttp/reverseproxy/upstream.go
@@ -179,21 +179,21 @@ type LoadBalanced struct {
// The following struct fields are set by caddy configuration.
// TryInterval is the max duration for which request retrys will be performed for a request.
- TryInterval string `json:"try_interval"`
+ TryInterval string `json:"try_interval,omitempty"`
// Upstreams are the configs for upstream hosts
- Upstreams []*UpstreamConfig `json:"upstreams"`
+ Upstreams []*UpstreamConfig `json:"upstreams,omitempty"`
// LoadBalanceType is the string representation of what loadbalancing algorithm to use. i.e. "random" or "round_robin".
- LoadBalanceType string `json:"load_balance_type"`
+ LoadBalanceType string `json:"load_balance_type,omitempty"`
// NoHealthyUpstreamsMessage is returned as a response when there are no healthy upstreams to loadbalance to.
- NoHealthyUpstreamsMessage string `json:"no_healthy_upstreams_message"`
+ NoHealthyUpstreamsMessage string `json:"no_healthy_upstreams_message,omitempty"`
// TODO :- store healthcheckers as package level state where each upstream gets a single healthchecker
// currently a healthchecker is created for each upstream defined, even if a healthchecker was previously created
// for that upstream
- HealthCheckers []*HealthChecker
+ HealthCheckers []*HealthChecker `json:"health_checkers,omitempty"`
}
// Cleanup stops all health checkers on a loadbalanced reverse proxy.
@@ -320,22 +320,22 @@ func (lb *LoadBalanced) random() *upstream {
// UpstreamConfig represents the config of an upstream.
type UpstreamConfig struct {
// Host is the host name of the upstream server.
- Host string `json:"host"`
+ Host string `json:"host,omitempty"`
// FastHealthCheckDuration is the duration for which a health check is performed when a node is considered unhealthy.
- FastHealthCheckDuration string `json:"fast_health_check_duration"`
+ FastHealthCheckDuration string `json:"fast_health_check_duration,omitempty"`
- CircuitBreaker json.RawMessage `json:"circuit_breaker"`
+ CircuitBreaker json.RawMessage `json:"circuit_breaker,omitempty"`
// // CircuitBreakerConfig is the config passed to setup a circuit breaker.
- // CircuitBreakerConfig *circuitbreaker.Config `json:"circuit_breaker"`
+ // CircuitBreakerConfig *circuitbreaker.Config `json:"circuit_breaker,omitempty"`
circuitbreaker CircuitBreaker
// HealthCheckDuration is the default duration for which a health check is performed.
- HealthCheckDuration string `json:"health_check_duration"`
+ HealthCheckDuration string `json:"health_check_duration,omitempty"`
// HealthCheckPath is the path at the upstream host to use for healthchecks.
- HealthCheckPath string `json:"health_check_path"`
+ HealthCheckPath string `json:"health_check_path,omitempty"`
}
// upstream represents an upstream host.