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/
dig.go
63 lines (51 loc) · 1.44 KB
/
dig.go
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package proxy
import (
"io"
"github.com/go-kit/kit/log"
"github.com/go-kit/kit/log/level"
"github.com/pkg/errors"
"github.com/replicatedhq/gatekeeper/pkg/config"
"github.com/replicatedhq/gatekeeper/pkg/kubernetes"
"github.com/replicatedhq/gatekeeper/pkg/logger"
"go.uber.org/dig"
)
func buildInjector(c *config.Config, out io.Writer) (*dig.Container, error) {
providers := []interface{}{
func() *config.Config {
return c
},
func() io.Writer {
return out
},
logger.New,
kubernetes.NewClient,
NewProxy,
}
container := dig.New()
for _, provider := range providers {
err := container.Provide(provider)
if err != nil {
return nil, errors.Wrap(err, "register providers")
}
}
return container, nil
}
func Get(c *config.Config, out io.Writer) (*GatekeeperProxy, error) {
debug := log.With(level.Debug(logger.New()), "component", "injector", "phase", "instance.get")
debug.Log("event", "injector.build")
injector, err := buildInjector(c, out)
if err != nil {
debug.Log("event", "injector.build.fail", "error", err)
return nil, errors.Wrap(err, "build injector")
}
var gatekeeperProxy *GatekeeperProxy
debug.Log("event", "injector.invoke")
if err := injector.Invoke(func(g *GatekeeperProxy) {
debug.Log("event", "injector.invoke.resolve")
gatekeeperProxy = g
}); err != nil {
debug.Log("event", "injector.invoke.fail", "err", err)
return nil, errors.Wrap(err, "resolve deps")
}
return gatekeeperProxy, nil
}