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<li class="md-nav__item">
<a href="../MIGRATION/" class="md-nav__link">
<span class="md-ellipsis">
Migration Guide
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--section md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2_5" >
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<span class="md-ellipsis">
Help
</span>
<span class="md-nav__icon md-icon"></span>
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<span class="md-nav__icon md-icon"></span>
Help
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../COMMON_ISSUES/" class="md-nav__link">
<span class="md-ellipsis">
Common issues
</span>
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</li>
</ul>
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</li>
</ul>
</nav>
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<li class="md-nav__item md-nav__item--nested">
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<span class="md-ellipsis">
Setup
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_3">
<span class="md-nav__icon md-icon"></span>
Setup
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3_1" >
<label class="md-nav__link" for="__nav_3_1" id="__nav_3_1_label" tabindex="0">
<span class="md-ellipsis">
Getting started
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_3_1_label" aria-expanded="false">
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<span class="md-nav__icon md-icon"></span>
Getting started
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../SUBNETS/" class="md-nav__link">
<span class="md-ellipsis">
Subnets
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PLUGINS/" class="md-nav__link">
<span class="md-ellipsis">
Enable Plugins
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PIHOLE_GUIDE/" class="md-nav__link">
<span class="md-ellipsis">
Pi-hole Guide
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../HOME_ASSISTANT/" class="md-nav__link">
<span class="md-ellipsis">
Home Assistant
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../SMTP/" class="md-nav__link">
<span class="md-ellipsis">
Emails
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../BACKUPS/" class="md-nav__link">
<span class="md-ellipsis">
Backups
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../SECURITY_FEATURES/" class="md-nav__link">
<span class="md-ellipsis">
Security Features
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../SECURITY/" class="md-nav__link">
<span class="md-ellipsis">
Security Considerations
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</ul>
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<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3_2" >
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<span class="md-ellipsis">
Advanced guides
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_3_2_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_3_2">
<span class="md-nav__icon md-icon"></span>
Advanced guides
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../REMOTE_NETWORKS/" class="md-nav__link">
<span class="md-ellipsis">
Remote Networks
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../NOTIFICATIONS/" class="md-nav__link">
<span class="md-ellipsis">
Notifications Guide
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../NAME_RESOLUTION/" class="md-nav__link">
<span class="md-ellipsis">
Name Resolution
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../AUTHELIA/" class="md-nav__link">
<span class="md-ellipsis">
Authelia
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PERFORMANCE/" class="md-nav__link">
<span class="md-ellipsis">
Performance
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../REVERSE_DNS/" class="md-nav__link">
<span class="md-ellipsis">
Reverse DNS
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../REVERSE_PROXY/" class="md-nav__link">
<span class="md-ellipsis">
Reverse Proxy
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../WEBHOOK_N8N/" class="md-nav__link">
<span class="md-ellipsis">
Webhooks (n8n)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../WORKFLOWS/" class="md-nav__link">
<span class="md-ellipsis">
Workflows
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../WORKFLOW_EXAMPLES/" class="md-nav__link">
<span class="md-ellipsis">
Workflow Examples
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DOCKER_SWARM/" class="md-nav__link">
<span class="md-ellipsis">
Docker Swarm
</span>
</a>
</li>
</ul>
</nav>
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<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3_3" >
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<span class="md-ellipsis">
Help
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_3_3_label" aria-expanded="false">
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<span class="md-nav__icon md-icon"></span>
Help
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../COMMON_ISSUES/" class="md-nav__link">
<span class="md-ellipsis">
Common issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../RANDOM_MAC/" class="md-nav__link">
<span class="md-ellipsis">
Random MAC
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../FIX_OFFLINE_DETECTION/" class="md-nav__link">
<span class="md-ellipsis">
Incorrect Offline Detection
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</li>
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</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4" >
<label class="md-nav__link" for="__nav_4" id="__nav_4_label" tabindex="0">
<span class="md-ellipsis">
Device guides
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_4_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_4">
<span class="md-nav__icon md-icon"></span>
Device guides
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4_1" >
<label class="md-nav__link" for="__nav_4_1" id="__nav_4_1_label" tabindex="0">
<span class="md-ellipsis">
Editing Devices
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_4_1_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_4_1">
<span class="md-nav__icon md-icon"></span>
Editing Devices
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../DEVICE_MANAGEMENT/" class="md-nav__link">
<span class="md-ellipsis">
Management
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEVICES_BULK_EDITING/" class="md-nav__link">
<span class="md-ellipsis">
Bulk Editing
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../CUSTOM_PROPERTIES/" class="md-nav__link">
<span class="md-ellipsis">
Custom Properties
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEVICE_DISPLAY_SETTINGS/" class="md-nav__link">
<span class="md-ellipsis">
Device Display Settings
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../SESSION_INFO/" class="md-nav__link">
<span class="md-ellipsis">
Session Info
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4_2" >
<label class="md-nav__link" for="__nav_4_2" id="__nav_4_2_label" tabindex="0">
<span class="md-ellipsis">
Icons and Topology
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_4_2_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_4_2">
<span class="md-nav__icon md-icon"></span>
Icons and Topology
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../ICONS/" class="md-nav__link">
<span class="md-ellipsis">
Icons
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../NETWORK_TREE/" class="md-nav__link">
<span class="md-ellipsis">
Network Topology
</span>
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5" >
<label class="md-nav__link" for="__nav_5" id="__nav_5_label" tabindex="0">
<span class="md-ellipsis">
Troubleshooting
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_5_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_5">
<span class="md-nav__icon md-icon"></span>
Troubleshooting
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../DEBUG_TIPS/" class="md-nav__link">
<span class="md-ellipsis">
General Tips
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../COMMON_ISSUES/" class="md-nav__link">
<span class="md-ellipsis">
Common issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../LOGGING/" class="md-nav__link">
<span class="md-ellipsis">
Inspecting Logs
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEBUG_API_SERVER/" class="md-nav__link">
<span class="md-ellipsis">
API Server Issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEBUG_INVALID_JSON/" class="md-nav__link">
<span class="md-ellipsis">
Invalid JSON Issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEBUG_PHP/" class="md-nav__link">
<span class="md-ellipsis">
PHP Issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEBUG_PLUGINS/" class="md-nav__link">
<span class="md-ellipsis">
Plugin Issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../WEB_UI_PORT_DEBUG/" class="md-nav__link">
<span class="md-ellipsis">
Web UI Port Issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../WORKFLOWS_DEBUGGING/" class="md-nav__link">
<span class="md-ellipsis">
Workflows Issues
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</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_6" >
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<span class="md-ellipsis">
Development
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_6_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_6">
<span class="md-nav__icon md-icon"></span>
Development
</label>
<ul class="md-nav__list" data-md-scrollfix>
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_6_1" >
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<span class="md-ellipsis">
Plugin and app development
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_6_1_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_6_1">
<span class="md-nav__icon md-icon"></span>
Plugin and app development
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../DEV_ENV_SETUP/" class="md-nav__link">
<span class="md-ellipsis">
Environment Setup
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../BUILDS/" class="md-nav__link">
<span class="md-ellipsis">
Builds
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEV_DEVCONTAINER/" class="md-nav__link">
<span class="md-ellipsis">
Devcontainer
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PLUGINS_DEV/" class="md-nav__link">
<span class="md-ellipsis">
Custom Plugins
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PLUGINS_DEV_CONFIG/" class="md-nav__link">
<span class="md-ellipsis">
Plugin Config
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../FRONTEND_DEVELOPMENT/" class="md-nav__link">
<span class="md-ellipsis">
Frontend Development
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DATABASE/" class="md-nav__link">
<span class="md-ellipsis">
Database
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../SETTINGS_SYSTEM/" class="md-nav__link">
<span class="md-ellipsis">
Settings
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../VERSIONS/" class="md-nav__link">
<span class="md-ellipsis">
Versions
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEVICE_HEURISTICS/" class="md-nav__link">
<span class="md-ellipsis">
Icon and Type guessing
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_6_2" >
<label class="md-nav__link" for="__nav_6_2" id="__nav_6_2_label" tabindex="0">
<span class="md-ellipsis">
API
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_6_2_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_6_2">
<span class="md-nav__icon md-icon"></span>
API
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../API/" class="md-nav__link">
<span class="md-ellipsis">
Overview
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../API_DEVICES/" class="md-nav__link">
<span class="md-ellipsis">
Devices Collection
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../API_DEVICE/" class="md-nav__link">
<span class="md-ellipsis">
Device
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../API_SESSIONS/" class="md-nav__link">
<span class="md-ellipsis">
Sessions
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../API_SETTINGS/" class="md-nav__link">
<span class="md-ellipsis">
Settings
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../API_EVENTS/" class="md-nav__link">
<span class="md-ellipsis">
Events
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../API_MESSAGING_IN_APP/" class="md-nav__link">
<span class="md-ellipsis">
Messaging in-app
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../API_METRICS/" class="md-nav__link">
<span class="md-ellipsis">
Metrics
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../API_NETTOOLS/" class="md-nav__link">
<span class="md-ellipsis">
Net Tools
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../API_ONLINEHISTORY/" class="md-nav__link">
<span class="md-ellipsis">
Online History
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../API_SYNC/" class="md-nav__link">
<span class="md-ellipsis">
Sync
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../API_GRAPHQL/" class="md-nav__link">
<span class="md-ellipsis">
GraphQL
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../API_DBQUERY/" class="md-nav__link">
<span class="md-ellipsis">
DB query
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../API_TESTS/" class="md-nav__link">
<span class="md-ellipsis">
Tests
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../API_OLD/" class="md-nav__link">
<span class="md-ellipsis">
SUPERSEDED OLD API Overview
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</a>
</li>
</ul>
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</li>
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_6_3" >
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<span class="md-ellipsis">
Integrations
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_6_3_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_6_3">
<span class="md-nav__icon md-icon"></span>
Integrations
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../WEBHOOK_SECRET/" class="md-nav__link">
<span class="md-ellipsis">
Webhook Secret
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../HELPER_SCRIPTS/" class="md-nav__link">
<span class="md-ellipsis">
Helper scripts
</span>
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</li>
</ul>
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</li>
</ul>
</nav>
</li>
</ul>
</nav>
</div>
</div>
</div>
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<div class="md-sidebar__scrollwrap">
<div class="md-sidebar__inner">
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
<label class="md-nav__title" for="__toc">
<span class="md-nav__icon md-icon"></span>
Table of contents
</label>
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
<li class="md-nav__item">
<a href="#1-manual-updates" class="md-nav__link">
<span class="md-ellipsis">
1. Manual Updates
</span>
</a>
<nav class="md-nav" aria-label="1. Manual Updates">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#alternative-force-pull-with-docker-compose" class="md-nav__link">
<span class="md-ellipsis">
Alternative: Force Pull with Docker Compose
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#2-dockcheck-for-bulk-container-updates" class="md-nav__link">
<span class="md-ellipsis">
2. Dockcheck for Bulk Container Updates
</span>
</a>
<nav class="md-nav" aria-label="2. Dockcheck for Bulk Container Updates">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#example-workflow-with-dockcheck" class="md-nav__link">
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Example Workflow with Dockcheck
</span>
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</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#3-automated-updates-with-watchtower" class="md-nav__link">
<span class="md-ellipsis">
3. Automated Updates with Watchtower
</span>
</a>
<nav class="md-nav" aria-label="3. Automated Updates with Watchtower">
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<h1 id="docker-update-strategies-to-upgrade-netalertx">Docker Update Strategies to upgrade NetAlertX</h1>
<div class="admonition warning">
<p class="admonition-title">Warning</p>
<p>For versions prior to <code>v25.6.7</code> upgrade to version <code>v25.5.24</code> first (<code>docker pull ghcr.io/jokob-sk/netalertx:25.5.24</code>) as later versions don't support a full upgrade. Alternatively, devices and settings can be migrated manually, e.g. via <a href="../DEVICES_BULK_EDITING/">CSV import</a>.
See the <a href="../MIGRATION/">Migration guide</a> for details.</p>
</div>
<p>This guide outlines approaches for updating Docker containers, usually when upgrading to a newer version of NetAlertX. Each method offers different benefits depending on the situation. Here are the methods:</p>
<ul>
<li>Manual: Direct commands to stop, remove, and rebuild containers.</li>
<li>Dockcheck: Semi-automated with more control, suited for bulk updates.</li>
<li>Watchtower: Fully automated, runs continuously to check and update containers.</li>
<li>Portainer: Manual with UI.</li>
</ul>
<p>You can choose any approach that fits your workflow.</p>
<blockquote>
<p>In the examples I assume that the container name is <code>netalertx</code> and the image name is <code>netalertx</code> as well.</p>
</blockquote>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>See also <a href="../BACKUPS/">Backup strategies</a> to be on the safe side.</p>
</div>
<h2 id="1-manual-updates">1. Manual Updates</h2>
<p>Use this method when you need precise control over a single container or when dealing with a broken container that needs immediate attention.
Example Commands</p>
<p>To manually update the <code>netalertx</code> container, stop it, delete it, remove the old image, and start a fresh one with <code>docker-compose</code>.</p>
<pre><code class="language-bash"># Stop the container
sudo docker container stop netalertx
# Remove the container
sudo docker container rm netalertx
# Remove the old image
sudo docker image rm netalertx
# Pull and start a new container
sudo docker-compose up -d
</code></pre>
<h3 id="alternative-force-pull-with-docker-compose">Alternative: Force Pull with Docker Compose</h3>
<p>You can also use <code>--pull always</code> to ensure Docker pulls the latest image before starting the container:</p>
<pre><code class="language-bash">sudo docker-compose up --pull always -d
</code></pre>
<h2 id="2-dockcheck-for-bulk-container-updates">2. Dockcheck for Bulk Container Updates</h2>
<p>Always check the <a href="https://github.com/mag37/dockcheck">Dockcheck</a> docs if encountering issues with the guide below.</p>
<p>Dockcheck is a useful tool if you have multiple containers to update and some flexibility for handling potential issues that might arise during mass updates. Dockcheck allows you to inspect each container and decide when to update.</p>
<h3 id="example-workflow-with-dockcheck">Example Workflow with Dockcheck</h3>
<p>You might use Dockcheck to:</p>
<ul>
<li>Inspect container versions.</li>
<li>Pull the latest images in bulk.</li>
<li>Apply updates selectively.</li>
</ul>
<p>Dockcheck can help streamline bulk updates, especially if you’re managing multiple containers.</p>
<p>Below is a script I use to run an update of the Dockcheck script and start a check for new containers:</p>
<pre><code class="language-bash">cd /path/to/Docker &amp;&amp;
rm dockcheck.sh &amp;&amp;
wget https://raw.githubusercontent.com/mag37/dockcheck/main/dockcheck.sh &amp;&amp;
sudo chmod +x dockcheck.sh &amp;&amp;
sudo ./dockcheck.sh
</code></pre>
<h2 id="3-automated-updates-with-watchtower">3. Automated Updates with Watchtower</h2>
<p>Always check the <a href="https://github.com/containrrr/watchtower">watchtower</a> docs if encountering issues with the guide below.</p>
<p>Watchtower monitors your Docker containers and automatically updates them when new images are available. This is ideal for ongoing updates without manual intervention.</p>
<h3 id="setting-up-watchtower">Setting Up Watchtower</h3>
<h4 id="1-pull-the-watchtower-image">1. Pull the Watchtower Image:</h4>
<pre><code class="language-bash">docker pull containrrr/watchtower
</code></pre>
<h4 id="2-run-watchtower-to-update-all-images">2. Run Watchtower to update all images:</h4>
<pre><code class="language-bash">docker run -d \
--name watchtower \
-v /var/run/docker.sock:/var/run/docker.sock \
containrrr/watchtower \
--interval 300 # Check for updates every 5 minutes
</code></pre>
<h4 id="3-run-watchtower-to-update-only-netalertx">3. Run Watchtower to update only NetAlertX:</h4>
<p>You can specify which containers to monitor by listing them. For example, to monitor netalertx only:</p>
<pre><code class="language-bash">docker run -d \
--name watchtower \
-v /var/run/docker.sock:/var/run/docker.sock \
containrrr/watchtower netalertx
</code></pre>
<h2 id="4-portainer-controlled-image">4. Portainer controlled image</h2>
<p>This assumes you're using Portainer to manage Docker (or Docker Swarm) and want to pull the latest version of an image and redeploy the container.</p>
<div class="admonition note">
<p class="admonition-title">Note</p>
<ul>
<li>Portainer does <strong>not auto-update</strong> containers. For automation, use <strong>Watchtower</strong> or similar tools.</li>
<li>Make sure you have the <a href="../BACKUPS/">persistent volumes mounted or backups ready</a> before recreating.</li>
</ul>
</div>
<h3 id="41-steps-to-update-an-image-in-portainer-standalone-docker">4.1 Steps to Update an Image in Portainer (Standalone Docker)</h3>
<ol>
<li><strong>Login to Portainer.</strong></li>
<li>Go to <strong>"Containers"</strong> in the left sidebar.</li>
<li>Find the container you want to update, click its name.</li>
<li>Click <strong>"Recreate"</strong> (top right).</li>
<li><strong>Tick</strong>: <em>Pull latest image</em> (this ensures Portainer fetches the newest version from Docker Hub or your registry).</li>
<li>Click <strong>"Recreate"</strong> again.</li>
<li>Wait for the container to be stopped, removed, and recreated with the updated image.</li>
</ol>
<h3 id="42-for-docker-swarm-services">4.2 For Docker Swarm Services</h3>
<p>If you're using Docker Swarm (under <strong>"Stacks"</strong> or <strong>"Services"</strong>):</p>
<ol>
<li>Go to <strong>"Stacks"</strong>.</li>
<li>Select the stack managing the container.</li>
<li>Click <strong>"Editor"</strong> (or "Update the Stack").</li>
<li>Add a version tag or use <code>:latest</code> if your image tag is <code>latest</code> (not recommended for production).</li>
<li>Click <strong>"Update the Stack"</strong>. ⚠ Portainer will not pull the new image unless the tag changes OR the stack is forced to recreate.</li>
<li>If image tag hasn't changed, go to <strong>"Services"</strong>, find the service, and click <strong>"Force Update"</strong>.</li>
</ol>
<h2 id="summary">Summary</h2>
<table>
<thead>
<tr>
<th>Method</th>
<th>Type</th>
<th>Pros</th>
<th>Cons</th>
</tr>
</thead>
<tbody>
<tr>
<td>Manual</td>
<td>CLI</td>
<td>Full control, no dependencies</td>
<td>Tedious for many containers</td>
</tr>
<tr>
<td>Dockcheck</td>
<td>CLI Script</td>
<td>Great for batch updates</td>
<td>Needs setup, semi-automated</td>
</tr>
<tr>
<td>Watchtower</td>
<td>Daemonized</td>
<td>Fully automated updates</td>
<td>Less control, version drift</td>
</tr>
<tr>
<td>Portainer</td>
<td>UI</td>
<td>Easy via web interface</td>
<td>No auto-updates</td>
</tr>
</tbody>
</table>
<p>These approaches allow you to maintain flexibility in how you update Docker containers, depending on the urgency and scale of the update.</p>
</article>
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