1 | 'use strict';
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2 |
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13 |
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14 |
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15 |
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16 | const util = require('./util');
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17 | const DockerSocket = require('./dockerSocket');
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18 |
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19 | let _platform = process.platform;
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20 | const _windows = (_platform === 'win32');
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21 |
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22 | let _docker_container_stats = {};
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23 | let _docker_socket;
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24 | let _docker_last_read = 0;
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25 |
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26 |
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27 |
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28 |
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29 |
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30 | function dockerInfo(callback) {
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31 | return new Promise((resolve) => {
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32 | process.nextTick(() => {
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33 | if (!_docker_socket) {
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34 | _docker_socket = new DockerSocket();
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35 | }
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36 | const result = {};
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37 |
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38 | _docker_socket.getInfo(data => {
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39 | result.id = data.ID;
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40 | result.containers = data.Containers;
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41 | result.containersRunning = data.ContainersRunning;
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42 | result.containersPaused = data.ContainersPaused;
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43 | result.containersStopped = data.ContainersStopped;
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44 | result.images = data.Images;
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45 | result.driver = data.Driver;
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46 | result.memoryLimit = data.MemoryLimit;
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47 | result.swapLimit = data.SwapLimit;
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48 | result.kernelMemory = data.KernelMemory;
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49 | result.cpuCfsPeriod = data.CpuCfsPeriod;
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50 | result.cpuCfsQuota = data.CpuCfsQuota;
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51 | result.cpuShares = data.CPUShares;
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52 | result.cpuSet = data.CPUSet;
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53 | result.ipv4Forwarding = data.IPv4Forwarding;
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54 | result.bridgeNfIptables = data.BridgeNfIptables;
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55 | result.bridgeNfIp6tables = data.BridgeNfIp6tables;
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56 | result.debug = data.Debug;
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57 | result.nfd = data.NFd;
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58 | result.oomKillDisable = data.OomKillDisable;
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59 | result.ngoroutines = data.NGoroutines;
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60 | result.systemTime = data.SystemTime;
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61 | result.loggingDriver = data.LoggingDriver;
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62 | result.cgroupDriver = data.CgroupDriver;
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63 | result.nEventsListener = data.NEventsListener;
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64 | result.kernelVersion = data.KernelVersion;
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65 | result.operatingSystem = data.OperatingSystem;
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66 | result.osType = data.OSType;
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67 | result.architecture = data.Architecture;
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68 | result.ncpu = data.NCPU;
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69 | result.memTotal = data.MemTotal;
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70 | result.dockerRootDir = data.DockerRootDir;
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71 | result.httpProxy = data.HttpProxy;
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72 | result.httpsProxy = data.HttpsProxy;
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73 | result.noProxy = data.NoProxy;
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74 | result.name = data.Name;
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75 | result.labels = data.Labels;
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76 | result.experimentalBuild = data.ExperimentalBuild;
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77 | result.serverVersion = data.ServerVersion;
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78 | result.clusterStore = data.ClusterStore;
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79 | result.clusterAdvertise = data.ClusterAdvertise;
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80 | result.defaultRuntime = data.DefaultRuntime;
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81 | result.liveRestoreEnabled = data.LiveRestoreEnabled;
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82 | result.isolation = data.Isolation;
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83 | result.initBinary = data.InitBinary;
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84 | result.productLicense = data.ProductLicense;
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85 | if (callback) { callback(result); }
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86 | resolve(result);
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87 | });
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88 | });
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89 | });
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90 | }
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91 |
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92 | exports.dockerInfo = dockerInfo;
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93 |
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94 | function dockerContainers(all, callback) {
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95 |
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96 | function inContainers(containers, id) {
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97 | let filtered = containers.filter(obj => {
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98 | |
99 |
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100 |
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101 |
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102 | return (obj.Id && (obj.Id === id));
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103 | });
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104 | return (filtered.length > 0);
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105 | }
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106 |
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107 |
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108 | if (util.isFunction(all) && !callback) {
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109 | callback = all;
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110 | all = false;
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111 | }
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112 |
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113 | all = all || false;
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114 | let result = [];
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115 | return new Promise((resolve) => {
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116 | process.nextTick(() => {
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117 | if (!_docker_socket) {
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118 | _docker_socket = new DockerSocket();
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119 | }
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120 | const workload = [];
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121 |
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122 | _docker_socket.listContainers(all, data => {
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123 | let docker_containers = {};
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124 | try {
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125 | docker_containers = data;
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126 | if (docker_containers && Object.prototype.toString.call(docker_containers) === '[object Array]' && docker_containers.length > 0) {
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127 |
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128 | for (let key in _docker_container_stats) {
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129 | if ({}.hasOwnProperty.call(_docker_container_stats, key)) {
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130 | if (!inContainers(docker_containers, key)) delete _docker_container_stats[key];
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131 | }
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132 | }
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133 |
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134 | docker_containers.forEach(function (element) {
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135 |
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136 | if (element.Names && Object.prototype.toString.call(element.Names) === '[object Array]' && element.Names.length > 0) {
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137 | element.Name = element.Names[0].replace(/^\/|\/$/g, '');
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138 | }
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139 | workload.push(dockerContainerInspect(element.Id.trim(), element));
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140 |
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141 |
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142 |
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143 |
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144 |
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145 |
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146 |
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147 |
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148 |
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149 |
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150 |
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151 |
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152 |
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153 | });
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154 | if (workload.length) {
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155 | Promise.all(
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156 | workload
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157 | ).then(data => {
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158 | if (callback) { callback(data); }
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159 | resolve(data);
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160 | });
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161 | } else {
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162 | if (callback) { callback(result); }
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163 | resolve(result);
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164 | }
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165 | }
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166 | } catch (err) {
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167 |
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168 | for (let key in _docker_container_stats) {
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169 | if ({}.hasOwnProperty.call(_docker_container_stats, key)) {
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170 | if (!inContainers(docker_containers, key)) delete _docker_container_stats[key];
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171 | }
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172 | }
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173 | if (callback) { callback(result); }
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174 | resolve(result);
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175 | }
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176 | });
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177 | });
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178 | });
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179 | }
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180 |
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181 |
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182 |
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183 |
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184 | function dockerContainerInspect(containerID, payload) {
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185 | containerID = containerID || '';
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186 | return new Promise((resolve) => {
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187 | process.nextTick(() => {
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188 | if (containerID) {
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189 |
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190 | if (!_docker_socket) {
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191 | _docker_socket = new DockerSocket();
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192 | }
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193 |
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194 | _docker_socket.getInspect(containerID.trim(), data => {
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195 | try {
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196 | resolve({
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197 | id: payload.Id,
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198 | name: payload.Name,
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199 | image: payload.Image,
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200 | imageID: payload.ImageID,
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201 | command: payload.Command,
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202 | created: payload.Created,
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203 | started: data.State && data.State.StartedAt ? Math.round(new Date(data.State.StartedAt).getTime() / 1000) : 0,
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204 | finished: data.State && data.State.FinishedAt && !data.State.FinishedAt.startsWith('0001-01-01') ? Math.round(new Date(data.State.FinishedAt).getTime() / 1000) : 0,
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205 | createdAt: data.Created ? data.Created : '',
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206 | startedAt: data.State && data.State.StartedAt ? data.State.StartedAt : '',
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207 | finishedAt: data.State && data.State.FinishedAt && !data.State.FinishedAt.startsWith('0001-01-01') ? data.State.FinishedAt : '',
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208 | state: payload.State,
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209 | restartCount: data.RestartCount || 0,
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210 | platform: data.Platform || '',
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211 | driver: data.Driver || '',
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212 | ports: payload.Ports,
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213 | mounts: payload.Mounts,
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214 |
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215 |
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216 | });
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217 | } catch (err) {
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218 | resolve();
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219 | }
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220 | });
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221 | } else {
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222 | resolve();
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223 | }
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224 | });
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225 | });
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226 | }
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227 |
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228 | exports.dockerContainers = dockerContainers;
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229 |
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230 |
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231 |
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232 |
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233 | function docker_calcCPUPercent(cpu_stats, precpu_stats) {
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234 | |
235 |
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236 |
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237 |
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238 |
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239 |
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240 |
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241 |
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242 |
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243 | if (!_windows) {
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244 | let cpuPercent = 0.0;
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245 |
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246 | let cpuDelta = cpu_stats.cpu_usage.total_usage - precpu_stats.cpu_usage.total_usage;
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247 |
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248 | let systemDelta = cpu_stats.system_cpu_usage - precpu_stats.system_cpu_usage;
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249 |
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250 | if (systemDelta > 0.0 && cpuDelta > 0.0) {
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251 |
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252 | cpuPercent = (cpuDelta / systemDelta) * cpu_stats.cpu_usage.percpu_usage.length * 100.0;
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253 | }
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254 |
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255 | return cpuPercent;
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256 | } else {
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257 | let nanoSecNow = util.nanoSeconds();
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258 | let cpuPercent = 0.0;
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259 | if (_docker_last_read > 0) {
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260 | let possIntervals = (nanoSecNow - _docker_last_read);
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261 | let intervalsUsed = cpu_stats.cpu_usage.total_usage - precpu_stats.cpu_usage.total_usage;
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262 | if (possIntervals > 0) {
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263 | cpuPercent = 100.0 * intervalsUsed / possIntervals;
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264 | }
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265 | }
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266 | _docker_last_read = nanoSecNow;
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267 | return cpuPercent;
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268 | }
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269 | }
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270 |
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271 | function docker_calcNetworkIO(networks) {
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272 | let rx;
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273 | let tx;
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274 | for (let key in networks) {
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275 |
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276 | if (!{}.hasOwnProperty.call(networks, key)) continue;
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277 |
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278 | |
279 |
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280 |
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281 |
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282 |
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283 | let obj = networks[key];
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284 | rx = +obj.rx_bytes;
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285 | tx = +obj.tx_bytes;
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286 | }
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287 | return {
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288 | rx: rx,
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289 | tx: tx
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290 | };
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291 | }
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292 |
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293 | function docker_calcBlockIO(blkio_stats) {
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294 | let result = {
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295 | r: 0,
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296 | w: 0
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297 | };
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298 |
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299 | |
300 |
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301 |
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302 |
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303 | if (blkio_stats && blkio_stats.io_service_bytes_recursive && Object.prototype.toString.call(blkio_stats.io_service_bytes_recursive) === '[object Array]' && blkio_stats.io_service_bytes_recursive.length > 0) {
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304 | blkio_stats.io_service_bytes_recursive.forEach(function (element) {
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305 | |
306 |
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307 |
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308 |
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309 |
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310 |
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311 | if (element.op && element.op.toLowerCase() === 'read' && element.value) {
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312 | result.r += element.value;
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313 | }
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314 | if (element.op && element.op.toLowerCase() === 'write' && element.value) {
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315 | result.w += element.value;
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316 | }
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317 | });
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318 | }
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319 | return result;
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320 | }
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321 |
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322 | function dockerContainerStats(containerIDs, callback) {
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323 |
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324 | let containerArray = [];
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325 |
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326 | if (util.isFunction(containerIDs) && !callback) {
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327 | callback = containerIDs;
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328 | containerArray = ['*'];
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329 | } else {
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330 | containerIDs = containerIDs || '*';
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331 | containerIDs = containerIDs.trim().toLowerCase().replace(/,+/g, '|');
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332 | containerArray = containerIDs.split('|');
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333 | }
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334 |
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335 | return new Promise((resolve) => {
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336 | process.nextTick(() => {
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337 |
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338 | const result = [];
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339 |
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340 | const workload = [];
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341 | if (containerArray.length && containerArray[0].trim() === '*') {
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342 | containerArray = [];
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343 | dockerContainers().then(allContainers => {
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344 | for (let container of allContainers) {
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345 | containerArray.push(container.id);
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346 | }
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347 | dockerContainerStats(containerArray.join(',')).then(result => {
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348 | if (callback) { callback(result); }
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349 | resolve(result);
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350 | });
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351 | });
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352 | } else {
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353 | for (let containerID of containerArray) {
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354 | workload.push(dockerContainerStatsSingle(containerID.trim()));
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355 | }
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356 | if (workload.length) {
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357 | Promise.all(
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358 | workload
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359 | ).then(data => {
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360 | if (callback) { callback(data); }
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361 | resolve(data);
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362 | });
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363 | } else {
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364 | if (callback) { callback(result); }
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365 | resolve(result);
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366 | }
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367 | }
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368 | });
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369 | });
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370 | }
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371 |
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372 |
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373 |
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374 |
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375 | function dockerContainerStatsSingle(containerID) {
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376 | containerID = containerID || '';
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377 | let result = {
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378 | id: containerID,
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379 | mem_usage: 0,
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380 | mem_limit: 0,
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381 | mem_percent: 0,
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382 | cpu_percent: 0,
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383 | pids: 0,
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384 | netIO: {
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385 | rx: 0,
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386 | wx: 0
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387 | },
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388 | blockIO: {
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389 | r: 0,
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390 | w: 0
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391 | }
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392 | };
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393 | return new Promise((resolve) => {
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394 | process.nextTick(() => {
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395 | if (containerID) {
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396 |
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397 | if (!_docker_socket) {
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398 | _docker_socket = new DockerSocket();
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399 | }
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400 |
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401 | _docker_socket.getInspect(containerID, dataInspect => {
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402 | try {
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403 | _docker_socket.getStats(containerID, data => {
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404 | try {
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405 | let stats = data;
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406 | |
407 |
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408 |
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409 |
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410 |
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411 |
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412 |
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413 |
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414 |
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415 |
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416 |
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417 |
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418 | if (!stats.message) {
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419 | result.mem_usage = (stats.memory_stats && stats.memory_stats.usage ? stats.memory_stats.usage : 0);
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420 | result.mem_limit = (stats.memory_stats && stats.memory_stats.limit ? stats.memory_stats.limit : 0);
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421 | result.mem_percent = (stats.memory_stats && stats.memory_stats.usage && stats.memory_stats.limit ? stats.memory_stats.usage / stats.memory_stats.limit * 100.0 : 0);
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422 | result.cpu_percent = (stats.cpu_stats && stats.precpu_stats ? docker_calcCPUPercent(stats.cpu_stats, stats.precpu_stats) : 0);
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423 | result.pids = (stats.pids_stats && stats.pids_stats.current ? stats.pids_stats.current : 0);
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424 | result.restartCount = (dataInspect.RestartCount ? dataInspect.RestartCount : 0);
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425 | if (stats.networks) result.netIO = docker_calcNetworkIO(stats.networks);
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426 | if (stats.blkio_stats) result.blockIO = docker_calcBlockIO(stats.blkio_stats);
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427 | result.cpu_stats = (stats.cpu_stats ? stats.cpu_stats : {});
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428 | result.precpu_stats = (stats.precpu_stats ? stats.precpu_stats : {});
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429 | result.memory_stats = (stats.memory_stats ? stats.memory_stats : {});
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430 | result.networks = (stats.networks ? stats.networks : {});
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431 | }
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432 | } catch (err) {
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433 | util.noop();
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434 | }
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435 |
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436 | resolve(result);
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437 | });
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438 | } catch (err) {
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439 | util.noop();
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440 | }
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441 | });
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442 | } else {
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443 | resolve(result);
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444 | }
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445 | });
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446 | });
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447 | }
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448 |
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449 | exports.dockerContainerStats = dockerContainerStats;
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450 |
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451 |
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452 |
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453 |
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454 | function dockerContainerProcesses(containerID, callback) {
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455 | containerID = containerID || '';
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456 | let result = [];
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457 | return new Promise((resolve) => {
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458 | process.nextTick(() => {
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459 | if (containerID) {
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460 |
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461 | if (!_docker_socket) {
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462 | _docker_socket = new DockerSocket();
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463 | }
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464 |
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465 | _docker_socket.getProcesses(containerID, data => {
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466 | |
467 |
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468 |
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469 |
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470 |
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471 | try {
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472 | if (data && data.Titles && data.Processes) {
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473 | let titles = data.Titles.map(function (value) {
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474 | return value.toUpperCase();
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475 | });
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476 | let pos_pid = titles.indexOf('PID');
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477 | let pos_ppid = titles.indexOf('PPID');
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478 | let pos_pgid = titles.indexOf('PGID');
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479 | let pos_vsz = titles.indexOf('VSZ');
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480 | let pos_time = titles.indexOf('TIME');
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481 | let pos_elapsed = titles.indexOf('ELAPSED');
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482 | let pos_ni = titles.indexOf('NI');
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483 | let pos_ruser = titles.indexOf('RUSER');
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484 | let pos_user = titles.indexOf('USER');
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485 | let pos_rgroup = titles.indexOf('RGROUP');
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486 | let pos_group = titles.indexOf('GROUP');
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487 | let pos_stat = titles.indexOf('STAT');
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488 | let pos_rss = titles.indexOf('RSS');
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489 | let pos_command = titles.indexOf('COMMAND');
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490 |
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491 | data.Processes.forEach(process => {
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492 | result.push({
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493 | pid_host: (pos_pid >= 0 ? process[pos_pid] : ''),
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494 | ppid: (pos_ppid >= 0 ? process[pos_ppid] : ''),
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495 | pgid: (pos_pgid >= 0 ? process[pos_pgid] : ''),
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496 | user: (pos_user >= 0 ? process[pos_user] : ''),
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497 | ruser: (pos_ruser >= 0 ? process[pos_ruser] : ''),
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498 | group: (pos_group >= 0 ? process[pos_group] : ''),
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499 | rgroup: (pos_rgroup >= 0 ? process[pos_rgroup] : ''),
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500 | stat: (pos_stat >= 0 ? process[pos_stat] : ''),
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501 | time: (pos_time >= 0 ? process[pos_time] : ''),
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502 | elapsed: (pos_elapsed >= 0 ? process[pos_elapsed] : ''),
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503 | nice: (pos_ni >= 0 ? process[pos_ni] : ''),
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504 | rss: (pos_rss >= 0 ? process[pos_rss] : ''),
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505 | vsz: (pos_vsz >= 0 ? process[pos_vsz] : ''),
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506 | command: (pos_command >= 0 ? process[pos_command] : '')
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507 | });
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508 | });
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509 | }
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510 | } catch (err) {
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511 | util.noop();
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512 | }
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513 | if (callback) { callback(result); }
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514 | resolve(result);
|
515 | });
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516 | } else {
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517 | if (callback) { callback(result); }
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518 | resolve(result);
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519 | }
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520 | });
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521 | });
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522 | }
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523 |
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524 | exports.dockerContainerProcesses = dockerContainerProcesses;
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525 |
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526 | function dockerAll(callback) {
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527 | return new Promise((resolve) => {
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528 | process.nextTick(() => {
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529 | dockerContainers(true).then(result => {
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530 | if (result && Object.prototype.toString.call(result) === '[object Array]' && result.length > 0) {
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531 | let l = result.length;
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532 | result.forEach(function (element) {
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533 | dockerContainerStats(element.id).then(res => {
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534 |
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535 | element.mem_usage = res[0].mem_usage;
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536 | element.mem_limit = res[0].mem_limit;
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537 | element.mem_percent = res[0].mem_percent;
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538 | element.cpu_percent = res[0].cpu_percent;
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539 | element.pids = res[0].pids;
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540 | element.netIO = res[0].netIO;
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541 | element.blockIO = res[0].blockIO;
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542 | element.cpu_stats = res[0].cpu_stats;
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543 | element.precpu_stats = res[0].precpu_stats;
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544 | element.memory_stats = res[0].memory_stats;
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545 | element.networks = res[0].networks;
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546 |
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547 | dockerContainerProcesses(element.id).then(processes => {
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548 | element.processes = processes;
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549 |
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550 | l -= 1;
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551 | if (l === 0) {
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552 | if (callback) { callback(result); }
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553 | resolve(result);
|
554 | }
|
555 | });
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556 |
|
557 | });
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558 | });
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559 | } else {
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560 | if (callback) { callback(result); }
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561 | resolve(result);
|
562 | }
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563 | });
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564 | });
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565 | });
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566 | }
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567 |
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568 | exports.dockerAll = dockerAll;
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