/
main.go
58 lines (45 loc) · 1.18 KB
/
main.go
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package main
import (
"os"
pkgerrors "github.com/pkg/errors"
"knative.dev/pkg/injection/sharedmain"
"knative.dev/pkg/metrics"
"knative.dev/pkg/system"
utilerrors "k8s.io/apimachinery/pkg/util/errors"
// allow client authentication against GKE clusters
_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
"github.com/kyma-project/kyma/components/event-sources/reconciler/httpsource"
)
const (
defaultSystemNamespace = "kyma-system"
defaultMetricsDomain = "kyma-project.io/event-sources"
)
func init() {
if err := ensureEnvVars(); err != nil {
panic(pkgerrors.Wrap(err, "setting environment variables"))
}
}
func main() {
sharedmain.Main("event_sources_controller",
httpsource.NewController,
)
}
func ensureEnvVars() error {
envVarDefaults := map[string]string{
system.NamespaceEnvKey: defaultSystemNamespace,
metrics.DomainEnv: defaultMetricsDomain,
}
var errs []error
for ev, def := range envVarDefaults {
if err := ensureEnvVar(ev, def); err != nil {
errs = append(errs, err)
}
}
return utilerrors.NewAggregate(errs)
}
func ensureEnvVar(key, defaultVal string) error {
if ns := os.Getenv(key); ns == "" {
return os.Setenv(key, defaultVal)
}
return nil
}