62 lines
1.9 KiB
Go
62 lines
1.9 KiB
Go
// Copyright 2014 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Unmarshal's a Containers description json file. The json file contains
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// an array of ContainerHint structs, each with a container's id and networkInterface
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// This allows collecting stats about network interfaces configured outside docker
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// and lxc
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package raw
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import (
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"encoding/json"
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"flag"
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"io/ioutil"
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"os"
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)
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var argContainerHints = flag.String("container_hints", "/etc/cadvisor/container_hints.json", "container hints file")
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type containerHints struct {
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AllHosts []containerHint `json:"all_hosts,omitempty"`
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}
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type containerHint struct {
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FullName string `json:"full_path,omitempty"`
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NetworkInterface *networkInterface `json:"network_interface,omitempty"`
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Mounts []mount `json:"mounts,omitempty"`
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}
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type mount struct {
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HostDir string `json:"host_dir,omitempty"`
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ContainerDir string `json:"container_dir,omitempty"`
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}
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type networkInterface struct {
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VethHost string `json:"veth_host,omitempty"`
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VethChild string `json:"veth_child,omitempty"`
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}
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func getContainerHintsFromFile(containerHintsFile string) (containerHints, error) {
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dat, err := ioutil.ReadFile(containerHintsFile)
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if os.IsNotExist(err) {
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return containerHints{}, nil
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}
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var cHints containerHints
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if err == nil {
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err = json.Unmarshal(dat, &cHints)
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}
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return cHints, err
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}
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