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ingress.go
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ingress.go
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// Copyright 2022 Namespace Labs Inc; All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
package kubernetes
import (
"context"
"fmt"
"io"
"namespacelabs.dev/foundation/framework/kubernetes/kubedef"
"namespacelabs.dev/foundation/internal/console"
"namespacelabs.dev/foundation/internal/planning"
"namespacelabs.dev/foundation/internal/planning/constants"
"namespacelabs.dev/foundation/internal/runtime"
"namespacelabs.dev/foundation/internal/runtime/kubernetes/kubeobserver"
"namespacelabs.dev/foundation/internal/runtime/kubernetes/networking/ingress"
fnschema "namespacelabs.dev/foundation/schema"
)
func planIngress(ctx context.Context, ingressPlanner kubedef.IngressClass, r clusterTarget, stack *fnschema.Stack, allFragments []*fnschema.IngressFragment) (*runtime.DeploymentPlan, error) {
var state runtime.DeploymentPlan
for _, srv := range stack.Entry {
frags := planning.IngressOwnedBy(allFragments, srv.GetPackageName())
if len(frags) == 0 {
continue
}
defs, err := ingress.PlanIngress(ctx, ingressPlanner, r.namespace, r.env, srv.Server, frags)
if err != nil {
return nil, err
}
for _, apply := range defs {
def, err := apply.ToDefinition(srv.GetPackageName())
if err != nil {
return nil, err
}
state.Definitions = append(state.Definitions, def)
}
}
return &state, nil
}
func (r *Cluster) ForwardIngress(ctx context.Context, localAddrs []string, localPort int, notify runtime.PortForwardedFunc) (io.Closer, error) {
if r.Ingress() == nil {
return nil, nil
}
svc := r.Ingress().Service()
ctxWithCancel, cancel := context.WithCancel(ctx)
obs := kubeobserver.NewPodObserver(ctxWithCancel, r.cli, svc.Namespace, svc.PodSelector)
go func() {
if err := r.StartAndBlockPortFwd(ctxWithCancel, StartAndBlockPortFwdArgs{
Namespace: svc.Namespace,
Identifier: "ingress",
LocalAddrs: localAddrs,
LocalPort: localPort,
ContainerPort: svc.ContainerPort,
PodResolver: obs,
ReportPorts: func(p runtime.ForwardedPort) {
notify(runtime.ForwardedPortEvent{
Added: []runtime.ForwardedPort{{
LocalPort: p.LocalPort,
ContainerPort: p.ContainerPort,
}},
Endpoint: &fnschema.Endpoint{
ServiceName: constants.IngressServiceName,
ServiceMetadata: []*fnschema.ServiceMetadata{{
Protocol: "http",
Kind: constants.IngressServiceKind,
}},
},
})
},
}); err != nil {
fmt.Fprintf(console.Errors(ctx), "ingress forwarding failed: %v\n", err)
}
}()
return closerCallback(cancel), nil
}
type closerCallback func()
func (c closerCallback) Close() error {
c()
return nil
}