<!doctype html>
< html lang = "en" class = "no-js" >
< head >
< meta charset = "utf-8" >
< meta name = "viewport" content = "width=device-width,initial-scale=1" >
< meta http-equiv = "x-ua-compatible" content = "ie=edge" >
< link rel = "canonical" href = "http://containrrr.github.io/watchtower/" >
< meta name = "lang:clipboard.copy" content = "Copy to clipboard" >
< meta name = "lang:clipboard.copied" content = "Copied to clipboard" >
< meta name = "lang:search.language" content = "en" >
< meta name = "lang:search.pipeline.stopwords" content = "True" >
< meta name = "lang:search.pipeline.trimmer" content = "True" >
< meta name = "lang:search.result.none" content = "No matching documents" >
< meta name = "lang:search.result.one" content = "1 matching document" >
< meta name = "lang:search.result.other" content = "# matching documents" >
< meta name = "lang:search.tokenizer" content = "[\s\-]+" >
< link rel = "shortcut icon" href = "assets/images/favicon.png" >
< meta name = "generator" content = "mkdocs-1.0.4, mkdocs-material-4.4.0" >
< title > Watchtower< / title >
< link rel = "stylesheet" href = "assets/stylesheets/application.0284f74d.css" >
< script src = "assets/javascripts/modernizr.74668098.js" > < / script >
< link href = "https://fonts.gstatic.com" rel = "preconnect" crossorigin >
< link rel = "stylesheet" href = "https://fonts.googleapis.com/css?family=Roboto:300,400,400i,700|Roboto+Mono&display=fallback" >
< style > body , input { font-family : "Roboto" , "Helvetica Neue" , Helvetica , Arial , sans-serif } code , kbd , pre { font-family : "Roboto Mono" , "Courier New" , Courier , monospace } < / style >
< link rel = "stylesheet" href = "assets/fonts/material-icons.css" >
< / head >
< body dir = "ltr" >
< svg class = "md-svg" >
< defs >
< svg xmlns = "http://www.w3.org/2000/svg" width = "416" height = "448" viewBox = "0 0 416 448" id = "__github" > < path fill = "currentColor" d = "M160 304q0 10-3.125 20.5t-10.75 19T128 352t-18.125-8.5-10.75-19T96 304t3.125-20.5 10.75-19T128 256t18.125 8.5 10.75 19T160 304zm160 0q0 10-3.125 20.5t-10.75 19T288 352t-18.125-8.5-10.75-19T256 304t3.125-20.5 10.75-19T288 256t18.125 8.5 10.75 19T320 304zm40 0q0-30-17.25-51T296 232q-10.25 0-48.75 5.25Q229.5 240 208 240t-39.25-2.75Q130.75 232 120 232q-29.5 0-46.75 21T56 304q0 22 8 38.375t20.25 25.75 30.5 15 35 7.375 37.25 1.75h42q20.5 0 37.25-1.75t35-7.375 30.5-15 20.25-25.75T360 304zm56-44q0 51.75-15.25 82.75-9.5 19.25-26.375 33.25t-35.25 21.5-42.5 11.875-42.875 5.5T212 416q-19.5 0-35.5-.75t-36.875-3.125-38.125-7.5-34.25-12.875T37 371.5t-21.5-28.75Q0 312 0 260q0-59.25 34-99-6.75-20.5-6.75-42.5 0-29 12.75-54.5 27 0 47.5 9.875t47.25 30.875Q171.5 96 212 96q37 0 70 8 26.25-20.5 46.75-30.25T376 64q12.75 25.5 12.75 54.5 0 21.75-6.75 42 34 40 34 99.5z" / > < / svg >
< / defs >
< / svg >
< input class = "md-toggle" data-md-toggle = "drawer" type = "checkbox" id = "__drawer" autocomplete = "off" >
< input class = "md-toggle" data-md-toggle = "search" type = "checkbox" id = "__search" autocomplete = "off" >
< label class = "md-overlay" data-md-component = "overlay" for = "__drawer" > < / label >
< a href = "#quick_start" tabindex = "1" class = "md-skip" >
Skip to content
< / a >
< header class = "md-header" data-md-component = "header" >
< nav class = "md-header-nav md-grid" >
< div class = "md-flex" >
< div class = "md-flex__cell md-flex__cell--shrink" >
< a href = "http://containrrr.github.io/watchtower/" title = "Watchtower" class = "md-header-nav__button md-logo" >
< i class = "md-icon" > < / i >
< / a >
< / div >
< div class = "md-flex__cell md-flex__cell--shrink" >
< label class = "md-icon md-icon--menu md-header-nav__button" for = "__drawer" > < / label >
< / div >
< div class = "md-flex__cell md-flex__cell--stretch" >
< div class = "md-flex__ellipsis md-header-nav__title" data-md-component = "title" >
< span class = "md-header-nav__topic" >
Watchtower
< / span >
< span class = "md-header-nav__topic" >
Home
< / span >
< / div >
< / div >
< div class = "md-flex__cell md-flex__cell--shrink" >
< label class = "md-icon md-icon--search md-header-nav__button" for = "__search" > < / label >
< div class = "md-search" data-md-component = "search" role = "dialog" >
< label class = "md-search__overlay" for = "__search" > < / label >
< div class = "md-search__inner" role = "search" >
< form class = "md-search__form" name = "search" >
< input type = "text" class = "md-search__input" name = "query" placeholder = "Search" autocapitalize = "off" autocorrect = "off" autocomplete = "off" spellcheck = "false" data-md-component = "query" data-md-state = "active" >
< label class = "md-icon md-search__icon" for = "__search" > < / label >
< button type = "reset" class = "md-icon md-search__icon" data-md-component = "reset" tabindex = "-1" >

< / button >
< / form >
< div class = "md-search__output" >
< div class = "md-search__scrollwrap" data-md-scrollfix >
< div class = "md-search-result" data-md-component = "result" >
< div class = "md-search-result__meta" >
Type to start searching
< / div >
< ol class = "md-search-result__list" > < / ol >
< / div >
< / div >
< / div >
< / div >
< / div >
< / div >
< div class = "md-flex__cell md-flex__cell--shrink" >
< div class = "md-header-nav__source" >
< a href = "https://github.com/containrrr/watchtower/" title = "Go to repository" class = "md-source" data-md-source = "github" >
< div class = "md-source__icon" >
< svg viewBox = "0 0 24 24" width = "24" height = "24" >
< use xlink:href = "#__github" width = "24" height = "24" > < / use >
< / svg >
< / div >
< div class = "md-source__repository" >
GitHub
< / div >
< / a >
< / div >
< / div >
< / div >
< / nav >
< / header >
< div class = "md-container" >
< main class = "md-main" >
< div class = "md-main__inner md-grid" data-md-component = "container" >
< div class = "md-sidebar md-sidebar--primary" data-md-component = "navigation" >
< div class = "md-sidebar__scrollwrap" >
< div class = "md-sidebar__inner" >
< nav class = "md-nav md-nav--primary" data-md-level = "0" >
< label class = "md-nav__title md-nav__title--site" for = "__drawer" >
< a href = "http://containrrr.github.io/watchtower/" title = "Watchtower" class = "md-nav__button md-logo" >
< i class = "md-icon" > < / i >
< / a >
Watchtower
< / label >
< div class = "md-nav__source" >
< a href = "https://github.com/containrrr/watchtower/" title = "Go to repository" class = "md-source" data-md-source = "github" >
< div class = "md-source__icon" >
< svg viewBox = "0 0 24 24" width = "24" height = "24" >
< use xlink:href = "#__github" width = "24" height = "24" > < / use >
< / svg >
< / div >
< div class = "md-source__repository" >
GitHub
< / div >
< / a >
< / div >
< ul class = "md-nav__list" data-md-scrollfix >
< li class = "md-nav__item md-nav__item--active" >
< input class = "md-toggle md-nav__toggle" data-md-toggle = "toc" type = "checkbox" id = "__toc" >
< label class = "md-nav__link md-nav__link--active" for = "__toc" >
Home
< / label >
< a href = "." title = "Home" class = "md-nav__link md-nav__link--active" >
Home
< / a >
< nav class = "md-nav md-nav--secondary" >
< label class = "md-nav__title" for = "__toc" > Table of contents< / label >
< ul class = "md-nav__list" data-md-scrollfix >
< li class = "md-nav__item" >
< a href = "#quick_start" title = "Quick Start" class = "md-nav__link" >
Quick Start
< / a >
< / li >
< / ul >
< / nav >
< / li >
< li class = "md-nav__item" >
< a href = "introduction/" title = "Introduction" class = "md-nav__link" >
Introduction
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "usage-overview/" title = "Usage overview" class = "md-nav__link" >
Usage overview
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "arguments/" title = "Arguments" class = "md-nav__link" >
Arguments
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "notifications/" title = "Notifications" class = "md-nav__link" >
Notifications
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "container-selection/" title = "Container selection" class = "md-nav__link" >
Container selection
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "linked-containers/" title = "Linked containers" class = "md-nav__link" >
Linked containers
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "remote-hosts/" title = "Remote hosts" class = "md-nav__link" >
Remote hosts
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "secure-connections/" title = "Secure connections" class = "md-nav__link" >
Secure connections
< / a >
< / li >
< li class = "md-nav__item" >
< a href = "stop-signals/" title = "Stop signals" class = "md-nav__link" >
Stop signals
< / a >
< / li >
< / ul >
< / nav >
< / div >
< / div >
< / div >
< div class = "md-sidebar md-sidebar--secondary" data-md-component = "toc" >
< div class = "md-sidebar__scrollwrap" >
< div class = "md-sidebar__inner" >
< nav class = "md-nav md-nav--secondary" >
< label class = "md-nav__title" for = "__toc" > Table of contents< / label >
< ul class = "md-nav__list" data-md-scrollfix >
< li class = "md-nav__item" >
< a href = "#quick_start" title = "Quick Start" class = "md-nav__link" >
Quick Start
< / a >
< / li >
< / ul >
< / nav >
< / div >
< / div >
< / div >
< div class = "md-content" >
< article class = "md-content__inner md-typeset" >
< a href = "https://github.com/containrrr/watchtower/edit/master/docs/index.md" title = "Edit this page" class = "md-icon md-content__icon" >  < / a >
< h1 align = "center" >
Watchtower
< / h1 >
< p align = "center" >
A container-based solution for automating Docker container base image updates.
< br / > < br / >
< a href = "https://circleci.com/gh/containrrr/watchtower" >
< img alt = "Circle CI" src = "https://circleci.com/gh/containrrr/watchtower.svg?style=shield" / >
< / a >
< a href = "https://godoc.org/github.com/containrrr/watchtower" >
< img alt = "GoDoc" src = "https://godoc.org/github.com/containrrr/watchtower?status.svg" / >
< / a >
< a href = "https://microbadger.com/images/containrrr/watchtower" >
< img alt = "Microbadger" src = "https://images.microbadger.com/badges/image/containrrr/watchtower.svg" / >
< / a >
< a href = "https://goreportcard.com/report/github.com/containrrr/watchtower" >
< img alt = "Go Report Card" src = "https://goreportcard.com/badge/github.com/containrrr/watchtower" / >
< / a >
< a href = "https://github.com/containrrr/watchtower/releases" >
< img alt = "latest version" src = "https://img.shields.io/github/tag/containrrr/watchtower.svg" / >
< / a >
< a href = "https://www.apache.org/licenses/LICENSE-2.0" >
< img alt = "Apache-2.0 License" src = "https://img.shields.io/github/license/containrrr/watchtower.svg" / >
< / a >
< a href = "https://www.codacy.com/app/simskij/watchtower" >
< img alt = "Codacy Badge" src = "https://api.codacy.com/project/badge/Grade/3a4d0fcfd26d45b09b1d7ea3c8c13744" / >
< / a >
< a href = "https://www.codacy.com/app/simskij/watchtower?utm_source=github.com&utm_medium=referral&utm_content=containrrr/watchtower&utm_campaign=Badge_Coverage" >
< img alt = "Codacy Badge" src = "https://api.codacy.com/project/badge/Coverage/3a4d0fcfd26d45b09b1d7ea3c8c13744" / >
< / a >
< a href = "https://gitter.im/containrrr/watchtower?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge" >
< img alt = "Join the chat at https://gitter.im/containrrr/watchtower" src = "https://badges.gitter.im/containrrr/watchtower.svg" / >
< / a >
< a href = "#contributors" >
< img alt = "All Contributors" src = "https://img.shields.io/badge/all_contributors-30-orange.svg?style=flat-square" / >
< / a >
< / p >
< h2 id = "quick_start" > Quick Start< a class = "headerlink" href = "#quick_start" title = "Permanent link" > ¶ < / a > < / h2 >
< p > With watchtower you can update the running version of your containerized app simply by pushing a new image to the Docker Hub or your own image registry. Watchtower will pull down your new image, gracefully shut down your existing container and restart it with the same options that were used when it was deployed initially. Run the watchtower container with the following command:< / p >
< pre > < code > $ docker run -d \
--name watchtower \
-v /var/run/docker.sock:/var/run/docker.sock \
containrrr/watchtower
< / code > < / pre >
< / article >
< / div >
< / div >
< / main >
< footer class = "md-footer" >
< div class = "md-footer-nav" >
< nav class = "md-footer-nav__inner md-grid" >
< a href = "introduction/" title = "Introduction" class = "md-flex md-footer-nav__link md-footer-nav__link--next" rel = "next" >
< div class = "md-flex__cell md-flex__cell--stretch md-footer-nav__title" >
< span class = "md-flex__ellipsis" >
< span class = "md-footer-nav__direction" >
Next
< / span >
Introduction
< / span >
< / div >
< div class = "md-flex__cell md-flex__cell--shrink" >
< i class = "md-icon md-icon--arrow-forward md-footer-nav__button" > < / i >
< / div >
< / a >
< / nav >
< / div >
< div class = "md-footer-meta md-typeset" >
< div class = "md-footer-meta__inner md-grid" >
< div class = "md-footer-copyright" >
powered by
< a href = "https://www.mkdocs.org" > MkDocs< / a >
and
< a href = "https://squidfunk.github.io/mkdocs-material/" >
Material for MkDocs< / a >
< / div >
< / div >
< / div >
< / footer >
< / div >
< script src = "assets/javascripts/application.245445c6.js" > < / script >
< script > app . initialize ( { version : "1.0.4" , url : { base : "." } } ) < / script >
< / body >
< / html >
