├── .dockerignore ├── .gitignore ├── Dockerfile ├── LICENSE ├── README.md ├── index.js ├── layout └── grid.js ├── package.json ├── screenshots └── screen.png ├── utils └── index.js └── widgets ├── cpu.js ├── gauges.js ├── index.js └── network.js /.dockerignore: -------------------------------------------------------------------------------- 1 | .git/ 2 | screenshots/ 3 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Docker project generated files to ignore 2 | # if you want to ignore files created by your editor/tools, 3 | # please consider a global .gitignore https://help.github.com/articles/ignoring-files 4 | .vagrant* 5 | bin 6 | docker/docker 7 | *.exe 8 | .*.swp 9 | a.out 10 | *.orig 11 | build_src 12 | .flymake* 13 | .idea 14 | .DS_Store 15 | docs/_build 16 | docs/_static 17 | docs/_templates 18 | .gopath/ 19 | .dotcloud 20 | *.test 21 | bundles/ 22 | .hg/ 23 | .git/ 24 | vendor/pkg/ 25 | pyenv 26 | Vagrantfile 27 | docs/AWS_S3_BUCKET 28 | docs/GIT_BRANCH 29 | docs/VERSION 30 | docs/GITCOMMIT 31 | docs/changed-files 32 | node_modules 33 | -------------------------------------------------------------------------------- /Dockerfile: -------------------------------------------------------------------------------- 1 | FROM iojs 2 | 3 | COPY . /usr/src 4 | WORKDIR /usr/src 5 | RUN npm install && npm link 6 | 7 | CMD [ "docker-mon" ] 8 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright {yyyy} {name of copyright owner} 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | 203 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | Docker-mon 2 | ---------- 3 | 4 | Console Docker monitoring based on [blessed-contrib](https://github.com/yaronn/blessed-contrib). 5 | 6 | ![sample](https://raw.githubusercontent.com/icecrime/docker-mon/master/screenshots/screen.png) 7 | 8 | Please note: 9 | 10 | - It is **work in progress** 11 | - It relies on the yet to be released [`docker stats` feature](https://github.com/docker/docker/pull/9984): you will need either a [master build](https://master.dockerproject.com/) or the upcoming v1.5.0 (see the [announcement for v1.5.0-rc1](https://groups.google.com/d/msg/docker-dev/nzKREJKqxe4/nsc9tkTLkccJ)) 12 | - [I don't know JS](http://i.imgur.com/xVyoSl.jpg), so contributions are welcome (see below for ideas) 13 | 14 | # Usage 15 | 16 | An automated build is set up for the project, so you can run it with: 17 | 18 | $ docker run -ti -v /var/run/docker.sock:/var/run/docker.sock icecrime/docker-mon 19 | 20 | If you feel like building it yourself: 21 | 22 | $ docker build -t docker-mon . 23 | $ docker run -ti -v /var/run/docker.sock:/var/run/docker.sock docker-mon 24 | 25 | - Pick a container from the upper left list and press `enter` to retrieve its information 26 | - The `j` and `k` keys are currently used to scroll the `inspect` output in the upper right box 27 | 28 | # Contributing 29 | 30 | Feel like contributing? Great! Here's a few things that I think would be interesting: 31 | 32 | - Properly close stream when switching monitored container 33 | - Ability to refresh the container list 34 | - Make an awesome colortheme 35 | - ... 36 | -------------------------------------------------------------------------------- /index.js: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env node 2 | 3 | // dependencies 4 | var cli = require('cli'), 5 | request = require('request'), 6 | utils = require('./utils'), 7 | widgets = require('./widgets'), 8 | 9 | blessed = require('blessed'), 10 | contrib = require('blessed-contrib'), 11 | screen = blessed.screen(), 12 | 13 | _ = require('lodash'); 14 | 15 | // enable status 16 | cli.enable('status'); 17 | 18 | // initialize variables 19 | var containers = '', 20 | host = process.env.DOCKER_HOST || 'unix:///var/run/docker.sock', 21 | isUnixSocket = (host.indexOf('unix') > -1); 22 | 23 | // add the trailing `:` if it's a unix socket 24 | if (isUnixSocket) { 25 | host += ":"; 26 | } 27 | // backwards compatibility for unix format 28 | if (isUnixSocket && host.substring(0, 8) == "unix:///") { 29 | host = host.replace("unix://", "http://unix:") 30 | } 31 | 32 | // parse command line arguments 33 | var parse = function (func){ 34 | if (cli.args.length) { 35 | return func(cli.args); 36 | } 37 | 38 | utils.GetAllContainers(host, function (err, containers){ 39 | if (err) { 40 | return cli.error(err); 41 | } 42 | 43 | return func(containers); 44 | }); 45 | }; 46 | 47 | var fetchContainerDetails = function (containerID, detailBox) { 48 | request({ 49 | json: true, 50 | method: 'GET', 51 | uri: host + '/containers/' + containerID + '/json' 52 | }, function(err, resp, body) { 53 | detailBox.setLabel("Container details: " + containerID.substr(0, 8) + " (use j/k to scroll)") 54 | 55 | if (err) { 56 | return detailBox.setText("Error fetching container info: " + err) 57 | } 58 | 59 | if (resp.statusCode != 200) { 60 | return detailBox.setText("Error fetch container info (" + resp.statusCode + "), error: " + body) 61 | } 62 | 63 | detailBox.setText(JSON.stringify(body, undefined, 2)) 64 | screen.render() 65 | }) 66 | } 67 | 68 | // Get the containers 69 | parse(function (containers) { 70 | if (containers.length <= 0){ 71 | return cli.error("No containers.") 72 | } 73 | 74 | var borderColor = "cyan" 75 | var labelStyle = { 76 | fg: "white", 77 | bold: true 78 | } 79 | 80 | // Create upper nested grid 81 | var upperGrid = new contrib.grid({rows: 1, cols: 2}) 82 | upperGrid.set(0, 0, contrib.table, { 83 | columnSpacing: [14, 32, 10], 84 | label: "Running containers (use arrows/enter to select)", 85 | parent: screen, // workaround a blessed bug 86 | style: { 87 | label: labelStyle 88 | } 89 | }) 90 | upperGrid.set(0, 1, blessed.box, { 91 | fg: "default", 92 | label: "Container details", 93 | scrollable: true, 94 | style: { 95 | label: labelStyle 96 | } 97 | }) 98 | 99 | var bottomGrid = new contrib.grid({rows: 1, cols: 2}) 100 | bottomGrid.set(0, 0, contrib.line, { 101 | label: "CPU %", 102 | maxY: 100, 103 | showNthLabel: 10, 104 | style: { 105 | baseline: "white", 106 | label: labelStyle, 107 | line: "yellow", 108 | text: "white" 109 | } 110 | }) 111 | 112 | var gaugesGrid = new contrib.grid({rows: 1, cols: 2}) 113 | gaugesGrid.set(0, 0, contrib.gauge, { 114 | label: "CPU %", 115 | style: { 116 | label: labelStyle 117 | } 118 | }) 119 | gaugesGrid.set(0, 1, contrib.gauge, { 120 | label: "MEM %", 121 | style: { 122 | label: labelStyle 123 | } 124 | }) 125 | 126 | var bottomRightGrid = new contrib.grid({rows: 2, cols: 1}) 127 | bottomRightGrid.set(0, 0, gaugesGrid) 128 | bottomRightGrid.set(1, 0, blessed.box, { 129 | label: "Network", 130 | padding: { 131 | left: 1 132 | }, 133 | style: { 134 | label: labelStyle 135 | } 136 | }) 137 | 138 | bottomGrid.set(0, 1, bottomRightGrid) 139 | 140 | // Create global grid layout 141 | var globalGrid = new contrib.grid({rows: 2, cols: 1}) 142 | globalGrid.set(0, 0, upperGrid) 143 | globalGrid.set(1, 0, bottomGrid) 144 | globalGrid.applyLayout(screen); 145 | 146 | // Name widgets 147 | var cpuLine = bottomGrid.get(0, 0) 148 | var cpuGauge = gaugesGrid.get(0, 0) 149 | var memGauge = gaugesGrid.get(0, 1) 150 | var networkBox = bottomRightGrid.get(1, 0) 151 | 152 | cpuLine.border.style.fg = borderColor 153 | cpuGauge.border.style.fg = borderColor 154 | memGauge.border.style.fg = borderColor 155 | networkBox.border.style.fg = borderColor 156 | cpuLine.canvasSize.width -= 12 // workaround to avoid overflowing the X labels 157 | 158 | // Create container detail view 159 | var containerDetailBox = upperGrid.get(0, 1) 160 | containerDetailBox.border.style.fg = borderColor 161 | 162 | // Create container list 163 | var containersTable = upperGrid.get(0, 0) 164 | 165 | // debounce call to containers endpoint because many events can happen at 166 | // "once" 167 | var updateContainers = _.debounce(function(){ 168 | utils.GetAllContainers(host, function (err, containers){ 169 | if(err) throw err; 170 | containersTable.setData({ 171 | headers: ["ID", "Names", "Image"], 172 | data: containers.map(function (el) { 173 | return [el.Id.substr(0, 8), el.Names.join(", "), el.Image] 174 | }) 175 | }) 176 | // If we don't render, you have to take action in the terminal for the 177 | // screen to re-render the current containers. 178 | screen.render() 179 | }) 180 | }, 200) 181 | 182 | // listen to events api to update "Running Containers" list 183 | request({ 184 | json: true, 185 | method: 'GET', 186 | uri: host + '/events' 187 | }) 188 | .on('data', function(data){ 189 | // we don't care about data, just that something happened 190 | updateContainers(); 191 | }) 192 | 193 | containersTable.setData({ 194 | headers: ["ID", "Names", "Image"], 195 | data: containers.map(function (el) { 196 | return [el.Id.substr(0, 8), el.Names.join(", "), el.Image] 197 | }) 198 | }) 199 | var elements = [ 200 | new widgets.CPUPercentageLine(cpuLine), 201 | new widgets.CPUGauge(cpuGauge), 202 | new widgets.MEMGauge(memGauge), 203 | new widgets.NetworkIO(networkBox) 204 | ] 205 | containersTable.rows.on("select", function (item) { 206 | // Get container data, update detail view 207 | var containerData = containers[containersTable.rows.getItemIndex(item)] 208 | fetchContainerDetails(containerData.Id, containerDetailBox) 209 | 210 | // Clear graphs and start collecting container stats 211 | elements.map(function(e){ 212 | if(typeof e.clear == 'function' || false){ 213 | e.clear() 214 | } 215 | }) 216 | utils.GetStats(host, containerData.Id, function (statItem) { 217 | elements.map(function (el) { el.update(statItem) }) 218 | screen.render() 219 | }) 220 | }) 221 | containersTable.border.style.fg = borderColor // override blessed-contrib border color (cyan) 222 | containersTable.rows.style.item.fg = "default" // override blessed-contrib item color (green) 223 | containersTable.style.fg = "cyan" // override blessed-contrib headers color (fg) 224 | containersTable.style.bold = true // override blessed-contrib headers style 225 | containersTable.focus() 226 | 227 | // Key bindings 228 | screen.key('j', function (ch, key) { 229 | containerDetailBox.setScrollPerc(containerDetailBox.getScrollPerc() + 10) 230 | }); 231 | screen.key('k', function (ch, key) { 232 | containerDetailBox.setScrollPerc(containerDetailBox.getScrollPerc() - 10) 233 | }); 234 | screen.key(['escape', 'q', 'C-c'], function (ch, key) { 235 | return process.exit(0) 236 | }); 237 | 238 | // Render screen 239 | screen.render(); 240 | }); 241 | -------------------------------------------------------------------------------- /layout/grid.js: -------------------------------------------------------------------------------- 1 | function Grid(options) { 2 | this.options = options 3 | this.matrix = [] 4 | 5 | for (var i=0; i 0.0 && cpuDelta > 0.0) { 10 | cpuPercent = (cpuDelta / systemDelta) * statItem.cpu_stats.cpu_usage.percpu_usage.length * 100.0 11 | } 12 | if(cpuPercent < 150){ 13 | return cpuPercent 14 | } else { 15 | return 0; 16 | } 17 | } 18 | 19 | CPUPercentageLine = function (lineWidget) { 20 | // allow use without new operator 21 | if (!(this instanceof CPUPercentageLine)) { 22 | return new CPUPercentageLine(lineWidget) 23 | } 24 | 25 | this.x = [] 26 | this.y = [] 27 | this.line = lineWidget 28 | this.previousCpu = 0.0 29 | this.previousSystem = 0.0 30 | } 31 | 32 | CPUPercentageLine.prototype.clear = function(){ 33 | this.x = [] 34 | this.y = [] 35 | // this.previousCpu = 0.0 36 | // this.previousSystem = 0.0 37 | } 38 | 39 | CPUPercentageLine.prototype.update = function (statItem) { 40 | var maxDataPoints = 60 41 | if (this.x.length > maxDataPoints) { 42 | this.x.shift(); 43 | } 44 | if (this.y.length > maxDataPoints) { 45 | this.y.shift(); 46 | } 47 | 48 | var cpuPercent = calculateCPUPercent(statItem, this.previousCpu, this.previousSystem) 49 | //this.x.push(moment(statItem.read).format("HH:mm:ss")) 50 | this.y.push(cpuPercent) 51 | this.x = []; 52 | for (var i = 0; i <= this.y.length; i++) { 53 | this.x.push(i-1); 54 | } 55 | this.x = this.x.reverse().map(function(n){return n.toString()}) 56 | this.previousCpu = statItem.cpu_stats.cpu_usage.total_usage 57 | this.previousSystem = statItem.cpu_stats.system_cpu_usage 58 | 59 | this.line.setData(this.x, this.y); 60 | } 61 | 62 | exports.CPUPercentageLine = CPUPercentageLine 63 | exports.calculateCPUPercent = calculateCPUPercent 64 | -------------------------------------------------------------------------------- /widgets/gauges.js: -------------------------------------------------------------------------------- 1 | // dependencies 2 | var cpu = require('./cpu.js') 3 | 4 | CPUGauge = function (gaugeWidget) { 5 | // allow use without new operator 6 | if (!(this instanceof CPUGauge)) { 7 | return new CPUGauge(gaugeWidget) 8 | } 9 | 10 | this.gauge = gaugeWidget 11 | this.previousCpu = 0.0 12 | this.previousSystem = 0.0 13 | } 14 | 15 | CPUGauge.prototype.clear = function(){ 16 | this.previousCpu = 0.0 17 | this.previousSystem = 0.0 18 | } 19 | 20 | CPUGauge.prototype.update = function (statItem) { 21 | var cpuPercent = cpu.calculateCPUPercent(statItem, this.previousCpu, this.previousSystem) 22 | this.gauge.setPercent(Math.round(cpuPercent)) 23 | this.previousCpu = statItem.cpu_stats.cpu_usage.total_usage 24 | this.previousSystem = statItem.cpu_stats.system_cpu_usage 25 | } 26 | 27 | MEMGauge = function (gaugeWidget) { 28 | // allow use without new operator 29 | if (!(this instanceof MEMGauge)) { 30 | return new MEMGauge(gaugeWidget) 31 | } 32 | 33 | this.gauge = gaugeWidget 34 | } 35 | 36 | MEMGauge.prototype.update = function (statItem) { 37 | var memPercent = statItem.memory_stats.usage / statItem.memory_stats.limit 38 | this.gauge.setPercent(Math.round(memPercent)) 39 | } 40 | 41 | exports.CPUGauge = CPUGauge 42 | exports.MEMGauge = MEMGauge 43 | -------------------------------------------------------------------------------- /widgets/index.js: -------------------------------------------------------------------------------- 1 | // Dependencies 2 | var cpu = require('./cpu.js'), 3 | gauges = require('./gauges.js'), 4 | network = require('./network.js') 5 | 6 | exports.CPUPercentageLine = cpu.CPUPercentageLine 7 | exports.CPUGauge = gauges.CPUGauge 8 | exports.MEMGauge = gauges.MEMGauge 9 | exports.NetworkIO = network.NetworkIO 10 | -------------------------------------------------------------------------------- /widgets/network.js: -------------------------------------------------------------------------------- 1 | // dependencies 2 | var humanize = require('humanize'), 3 | util = require('util') 4 | 5 | NetworkIO = function (boxWidget) { 6 | // allow use without new operator 7 | if (!(this instanceof NetworkIO)) { 8 | return new NetworkIO(boxWidget) 9 | } 10 | 11 | this.box = boxWidget 12 | } 13 | 14 | NetworkIO.prototype.update = function (statItem) { 15 | var boxContent = util.format( 16 | "rx_bytes = %s\n" + 17 | "rx_dropped = %d\n" + 18 | "rx_errors = %d\n" + 19 | "rx_packets = %d\n" + 20 | "tx_bytes = %s\n" + 21 | "tx_dropped = %d\n" + 22 | "tx_errors = %d\n" + 23 | "tx_packets = %d\n", 24 | humanize.filesize(statItem.network.rx_bytes), 25 | statItem.network.rx_dropped, 26 | statItem.network.rx_errors, 27 | statItem.network.rx_packets, 28 | humanize.filesize(statItem.network.tx_bytes), 29 | statItem.network.tx_dropped, 30 | statItem.network.tx_errors, 31 | statItem.network.tx_packets 32 | ) 33 | this.box.setText(boxContent) 34 | } 35 | 36 | exports.NetworkIO = NetworkIO 37 | --------------------------------------------------------------------------------