Initial commit

vendor/sigs.k8s.io/controller-runtime/pkg/metrics/doc.go

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+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+/*
+Package metrics contains controller related metrics utilities
+*/
+package metrics

vendor/sigs.k8s.io/controller-runtime/pkg/metrics/listener.go

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+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package metrics
+
+import (
+	"fmt"
+	"net"
+)
+
+// DefaultBindAddress sets the default bind address for the metrics
+// listener
+// The metrics is off by default.
+// TODO: Flip the default by changing DefaultBindAddress back to ":8080" in the v0.2.0.
+var DefaultBindAddress = "0"
+
+// NewListener creates a new TCP listener bound to the given address.
+func NewListener(addr string) (net.Listener, error) {
+	if addr == "" {
+		// If the metrics bind address is empty, default to ":8080"
+		addr = DefaultBindAddress
+	}
+
+	// Add a case to disable metrics altogether
+	if addr == "0" {
+		return nil, nil
+	}
+
+	ln, err := net.Listen("tcp", addr)
+	if err != nil {
+		return nil, fmt.Errorf("error listening on %s: %v", addr, err)
+	}
+	return ln, nil
+}

vendor/sigs.k8s.io/controller-runtime/pkg/metrics/registry.go

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+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package metrics
+
+import "github.com/prometheus/client_golang/prometheus"
+
+// Registry is a prometheus registry for storing metrics within the
+// controller-runtime
+var Registry = prometheus.NewRegistry()