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Ubuntu Base Images

Codacy Badge22.04, jammy24.04, noble25.04, plucky25.10, questing26.04, resoluteSL ScanCodacy Security ScanCodacy Security Scan

About

This repository contains Docker images for multiple Ubuntu versions, maintained by Michael Buluma (Buluma). These images are designed to provide consistent, reliable Ubuntu base images for containerized applications and development environments.

The images follow the official Ubuntu Docker image patterns but include additional configurations to support systemd and Ansible usage within containers, making them particularly useful for testing and development scenarios.

Key Features

  • Multiple Ubuntu versions supported (14.04 through 26.04)
  • Systemd-enabled containers for full service management
  • Ansible-ready environment (with optional Ansible installation)
  • Multi-architecture support (amd64, arm64, ppc64le, s390x, etc.)
  • Regular automated builds and security updates
  • Optimized for containerized environments while maintaining compatibility with traditional Ubuntu packages

Supported tags and respective Dockerfile links

Currently Supported LTS Versions

Currently Supported Non-LTS Versions

Deprecated/EOL LTS Versions

Deprecated/EOL Non-LTS Versions

Rolling/Development Versions

Building and Running

Building Images

To build a specific Ubuntu version:

cd ubuntu2004 # or any version directory
docker build -t ubuntu:20.04 .

Running Containers

The images are designed to run with privileged access for systemd support:

# Run with systemd support
docker run --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro -it ubuntu:20.04
# Run with Ansible support
docker run --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro -it ubuntu:20.04 /lib/systemd/systemd

Development Conventions

Dockerfile Patterns

Each Dockerfile follows a consistent pattern:

  1. Base image from official Ubuntu
  2. Install essential packages including systemd components
  3. Configure initctl faker for older Ubuntu versions
  4. Set up volumes for systemd functionality
  5. Define entrypoint and health checks

Systemd Support

The images are configured to support systemd services by:

  • Mounting /sys/fs/cgroup as a volume
  • Using systemd as the init process (/lib/systemd/systemd or /sbin/init)
  • Disabling problematic services like getty that consume CPU in containerized environments

Ansible Integration

Many images include Ansible support (often commented out by default) with:

  • Python package installations
  • Inventory configuration
  • Service management capabilities

Maintainer

About

Ubuntu Base Images

hub.docker.com/r/buluma/ubuntu

Resources

Readme
GPL-3.0 license
Activity

Stars

0 stars

Watchers

1 watching

Forks

1 fork
Report repository

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
BranchesTags
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Ubuntu Base Images
Codacy Badge22.04, jammy24.04, noble25.04, plucky25.10, questing26.04, resoluteSL ScanCodacy Security ScanCodacy Security Scan
About
This repository contains Docker images for multiple Ubuntu versions, maintained by Michael Buluma (Buluma). These images are designed to provide consistent, reliable Ubuntu base images for containerized applications and development environments.
The images follow the official Ubuntu Docker image patterns but include additional configurations to support systemd and Ansible usage within containers, making them particularly useful for testing and development scenarios.
Key Features
  • Multiple Ubuntu versions supported (14.04 through 26.04)
  • Systemd-enabled containers for full service management
  • Ansible-ready environment (with optional Ansible installation)
  • Multi-architecture support (amd64, arm64, ppc64le, s390x, etc.)
  • Regular automated builds and security updates
  • Optimized for containerized environments while maintaining compatibility with traditional Ubuntu packages
Supported tags and respective Dockerfile links
Currently Supported LTS Versions
Currently Supported Non-LTS Versions
Deprecated/EOL LTS Versions
Deprecated/EOL Non-LTS Versions
Rolling/Development Versions
Building and Running
Building Images
To build a specific Ubuntu version:
cd ubuntu2004 # or any version directory
docker build -t ubuntu:20.04 .
Running Containers
The images are designed to run with privileged access for systemd support:
# Run with systemd support
docker run --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro -it ubuntu:20.04
# Run with Ansible support
docker run --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro -it ubuntu:20.04 /lib/systemd/systemd
Development Conventions
Dockerfile Patterns
Each Dockerfile follows a consistent pattern:
  1. Base image from official Ubuntu
  2. Install essential packages including systemd components
  3. Configure initctl faker for older Ubuntu versions
  4. Set up volumes for systemd functionality
  5. Define entrypoint and health checks
Systemd Support
The images are configured to support systemd services by:
  • Mounting /sys/fs/cgroup as a volume
  • Using systemd as the init process (/lib/systemd/systemd or /sbin/init)
  • Disabling problematic services like getty that consume CPU in containerized environments
Ansible Integration
Many images include Ansible support (often commented out by default) with:
  • Python package installations
  • Inventory configuration
  • Service management capabilities
Maintainer
About
Ubuntu Base Images
hub.docker.com/r/buluma/ubuntu
Resources
Readme
GPL-3.0 license
Activity
Stars
0 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Ubuntu Base Images
Codacy Badge22.04, jammy24.04, noble25.04, plucky25.10, questing26.04, resoluteSL ScanCodacy Security ScanCodacy Security Scan
About
This repository contains Docker images for multiple Ubuntu versions, maintained by Michael Buluma (Buluma). These images are designed to provide consistent, reliable Ubuntu base images for containerized applications and development environments.
The images follow the official Ubuntu Docker image patterns but include additional configurations to support systemd and Ansible usage within containers, making them particularly useful for testing and development scenarios.
Key Features
  • Multiple Ubuntu versions supported (14.04 through 26.04)
  • Systemd-enabled containers for full service management
  • Ansible-ready environment (with optional Ansible installation)
  • Multi-architecture support (amd64, arm64, ppc64le, s390x, etc.)
  • Regular automated builds and security updates
  • Optimized for containerized environments while maintaining compatibility with traditional Ubuntu packages
Supported tags and respective Dockerfile links
Currently Supported LTS Versions
Currently Supported Non-LTS Versions
Deprecated/EOL LTS Versions
Deprecated/EOL Non-LTS Versions
Rolling/Development Versions
Building and Running
Building Images
To build a specific Ubuntu version:
cd ubuntu2004 # or any version directory
docker build -t ubuntu:20.04 .
Running Containers
The images are designed to run with privileged access for systemd support:
# Run with systemd support
docker run --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro -it ubuntu:20.04
# Run with Ansible support
docker run --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro -it ubuntu:20.04 /lib/systemd/systemd
Development Conventions
Dockerfile Patterns
Each Dockerfile follows a consistent pattern:
  1. Base image from official Ubuntu
  2. Install essential packages including systemd components
  3. Configure initctl faker for older Ubuntu versions
  4. Set up volumes for systemd functionality
  5. Define entrypoint and health checks
Systemd Support
The images are configured to support systemd services by:
  • Mounting /sys/fs/cgroup as a volume
  • Using systemd as the init process (/lib/systemd/systemd or /sbin/init)
  • Disabling problematic services like getty that consume CPU in containerized environments
Ansible Integration
Many images include Ansible support (often commented out by default) with:
  • Python package installations
  • Inventory configuration
  • Service management capabilities
Maintainer
About
Ubuntu Base Images
hub.docker.com/r/buluma/ubuntu
Resources
Readme
GPL-3.0 license
Activity
Stars
0 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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Ubuntu Base Images
Codacy Badge22.04, jammy24.04, noble25.04, plucky25.10, questing26.04, resoluteSL ScanCodacy Security ScanCodacy Security Scan
About
This repository contains Docker images for multiple Ubuntu versions, maintained by Michael Buluma (Buluma). These images are designed to provide consistent, reliable Ubuntu base images for containerized applications and development environments.
The images follow the official Ubuntu Docker image patterns but include additional configurations to support systemd and Ansible usage within containers, making them particularly useful for testing and development scenarios.
Key Features
  • Multiple Ubuntu versions supported (14.04 through 26.04)
  • Systemd-enabled containers for full service management
  • Ansible-ready environment (with optional Ansible installation)
  • Multi-architecture support (amd64, arm64, ppc64le, s390x, etc.)
  • Regular automated builds and security updates
  • Optimized for containerized environments while maintaining compatibility with traditional Ubuntu packages
Supported tags and respective Dockerfile links
Currently Supported LTS Versions
Currently Supported Non-LTS Versions
Deprecated/EOL LTS Versions
Deprecated/EOL Non-LTS Versions
Rolling/Development Versions
Building and Running
Building Images
To build a specific Ubuntu version:
cd ubuntu2004 # or any version directory
docker build -t ubuntu:20.04 .
Running Containers
The images are designed to run with privileged access for systemd support:
# Run with systemd support
docker run --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro -it ubuntu:20.04
# Run with Ansible support
docker run --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro -it ubuntu:20.04 /lib/systemd/systemd
Development Conventions
Dockerfile Patterns
Each Dockerfile follows a consistent pattern:
  1. Base image from official Ubuntu
  2. Install essential packages including systemd components
  3. Configure initctl faker for older Ubuntu versions
  4. Set up volumes for systemd functionality
  5. Define entrypoint and health checks
Systemd Support
The images are configured to support systemd services by:
  • Mounting /sys/fs/cgroup as a volume
  • Using systemd as the init process (/lib/systemd/systemd or /sbin/init)
  • Disabling problematic services like getty that consume CPU in containerized environments
Ansible Integration
Many images include Ansible support (often commented out by default) with:
  • Python package installations
  • Inventory configuration
  • Service management capabilities
Maintainer
About
Ubuntu Base Images
hub.docker.com/r/buluma/ubuntu
Resources
Readme
GPL-3.0 license
Activity
Stars
0 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
Repository files navigation
Ubuntu Base Images
Codacy Badge22.04, jammy24.04, noble25.04, plucky25.10, questing26.04, resoluteSL ScanCodacy Security ScanCodacy Security Scan
About
This repository contains Docker images for multiple Ubuntu versions, maintained by Michael Buluma (Buluma). These images are designed to provide consistent, reliable Ubuntu base images for containerized applications and development environments.
The images follow the official Ubuntu Docker image patterns but include additional configurations to support systemd and Ansible usage within containers, making them particularly useful for testing and development scenarios.
Key Features
  • Multiple Ubuntu versions supported (14.04 through 26.04)
  • Systemd-enabled containers for full service management
  • Ansible-ready environment (with optional Ansible installation)
  • Multi-architecture support (amd64, arm64, ppc64le, s390x, etc.)
  • Regular automated builds and security updates
  • Optimized for containerized environments while maintaining compatibility with traditional Ubuntu packages
Supported tags and respective Dockerfile links
Currently Supported LTS Versions
Currently Supported Non-LTS Versions
Deprecated/EOL LTS Versions
Deprecated/EOL Non-LTS Versions
Rolling/Development Versions
Building and Running
Building Images
To build a specific Ubuntu version:
cd ubuntu2004 # or any version directory
docker build -t ubuntu:20.04 .
Running Containers
The images are designed to run with privileged access for systemd support:
# Run with systemd support
docker run --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro -it ubuntu:20.04
# Run with Ansible support
docker run --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro -it ubuntu:20.04 /lib/systemd/systemd
Development Conventions
Dockerfile Patterns
Each Dockerfile follows a consistent pattern:
  1. Base image from official Ubuntu
  2. Install essential packages including systemd components
  3. Configure initctl faker for older Ubuntu versions
  4. Set up volumes for systemd functionality
  5. Define entrypoint and health checks
Systemd Support
The images are configured to support systemd services by:
  • Mounting /sys/fs/cgroup as a volume
  • Using systemd as the init process (/lib/systemd/systemd or /sbin/init)
  • Disabling problematic services like getty that consume CPU in containerized environments
Ansible Integration
Many images include Ansible support (often commented out by default) with:
  • Python package installations
  • Inventory configuration
  • Service management capabilities
Maintainer
About
Ubuntu Base Images
hub.docker.com/r/buluma/ubuntu
Resources
Readme
GPL-3.0 license
Activity
Stars
0 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Ubuntu Base Images
Codacy Badge22.04, jammy24.04, noble25.04, plucky25.10, questing26.04, resoluteSL ScanCodacy Security ScanCodacy Security Scan
About
This repository contains Docker images for multiple Ubuntu versions, maintained by Michael Buluma (Buluma). These images are designed to provide consistent, reliable Ubuntu base images for containerized applications and development environments.
The images follow the official Ubuntu Docker image patterns but include additional configurations to support systemd and Ansible usage within containers, making them particularly useful for testing and development scenarios.
Key Features
  • Multiple Ubuntu versions supported (14.04 through 26.04)
  • Systemd-enabled containers for full service management
  • Ansible-ready environment (with optional Ansible installation)
  • Multi-architecture support (amd64, arm64, ppc64le, s390x, etc.)
  • Regular automated builds and security updates
  • Optimized for containerized environments while maintaining compatibility with traditional Ubuntu packages
Supported tags and respective Dockerfile links
Currently Supported LTS Versions
Currently Supported Non-LTS Versions
Deprecated/EOL LTS Versions
Deprecated/EOL Non-LTS Versions
Rolling/Development Versions
Building and Running
Building Images
To build a specific Ubuntu version:
cd ubuntu2004 # or any version directory
docker build -t ubuntu:20.04 .
Running Containers
The images are designed to run with privileged access for systemd support:
# Run with systemd support
docker run --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro -it ubuntu:20.04
# Run with Ansible support
docker run --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro -it ubuntu:20.04 /lib/systemd/systemd
Development Conventions
Dockerfile Patterns
Each Dockerfile follows a consistent pattern:
  1. Base image from official Ubuntu
  2. Install essential packages including systemd components
  3. Configure initctl faker for older Ubuntu versions
  4. Set up volumes for systemd functionality
  5. Define entrypoint and health checks
Systemd Support
The images are configured to support systemd services by:
  • Mounting /sys/fs/cgroup as a volume
  • Using systemd as the init process (/lib/systemd/systemd or /sbin/init)
  • Disabling problematic services like getty that consume CPU in containerized environments
Ansible Integration
Many images include Ansible support (often commented out by default) with:
  • Python package installations
  • Inventory configuration
  • Service management capabilities
Maintainer
About
Ubuntu Base Images
hub.docker.com/r/buluma/ubuntu
Resources
Readme
GPL-3.0 license
Activity
Stars
0 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Ubuntu Base Images
Codacy Badge22.04, jammy24.04, noble25.04, plucky25.10, questing26.04, resoluteSL ScanCodacy Security ScanCodacy Security Scan
About
This repository contains Docker images for multiple Ubuntu versions, maintained by Michael Buluma (Buluma). These images are designed to provide consistent, reliable Ubuntu base images for containerized applications and development environments.
The images follow the official Ubuntu Docker image patterns but include additional configurations to support systemd and Ansible usage within containers, making them particularly useful for testing and development scenarios.
Key Features
  • Multiple Ubuntu versions supported (14.04 through 26.04)
  • Systemd-enabled containers for full service management
  • Ansible-ready environment (with optional Ansible installation)
  • Multi-architecture support (amd64, arm64, ppc64le, s390x, etc.)
  • Regular automated builds and security updates
  • Optimized for containerized environments while maintaining compatibility with traditional Ubuntu packages
Supported tags and respective Dockerfile links
Currently Supported LTS Versions
Currently Supported Non-LTS Versions
Deprecated/EOL LTS Versions
Deprecated/EOL Non-LTS Versions
Rolling/Development Versions
Building and Running
Building Images
To build a specific Ubuntu version:
cd ubuntu2004 # or any version directory
docker build -t ubuntu:20.04 .
Running Containers
The images are designed to run with privileged access for systemd support:
# Run with systemd support
docker run --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro -it ubuntu:20.04
# Run with Ansible support
docker run --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro -it ubuntu:20.04 /lib/systemd/systemd
Development Conventions
Dockerfile Patterns
Each Dockerfile follows a consistent pattern:
  1. Base image from official Ubuntu
  2. Install essential packages including systemd components
  3. Configure initctl faker for older Ubuntu versions
  4. Set up volumes for systemd functionality
  5. Define entrypoint and health checks
Systemd Support
The images are configured to support systemd services by:
  • Mounting /sys/fs/cgroup as a volume
  • Using systemd as the init process (/lib/systemd/systemd or /sbin/init)
  • Disabling problematic services like getty that consume CPU in containerized environments
Ansible Integration
Many images include Ansible support (often commented out by default) with:
  • Python package installations
  • Inventory configuration
  • Service management capabilities
Maintainer
About
Ubuntu Base Images
hub.docker.com/r/buluma/ubuntu
Resources
Readme
GPL-3.0 license
Activity
Stars
0 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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Ubuntu Base Images
Codacy Badge22.04, jammy24.04, noble25.04, plucky25.10, questing26.04, resoluteSL ScanCodacy Security ScanCodacy Security Scan
About
This repository contains Docker images for multiple Ubuntu versions, maintained by Michael Buluma (Buluma). These images are designed to provide consistent, reliable Ubuntu base images for containerized applications and development environments.
The images follow the official Ubuntu Docker image patterns but include additional configurations to support systemd and Ansible usage within containers, making them particularly useful for testing and development scenarios.
Key Features
  • Multiple Ubuntu versions supported (14.04 through 26.04)
  • Systemd-enabled containers for full service management
  • Ansible-ready environment (with optional Ansible installation)
  • Multi-architecture support (amd64, arm64, ppc64le, s390x, etc.)
  • Regular automated builds and security updates
  • Optimized for containerized environments while maintaining compatibility with traditional Ubuntu packages
Supported tags and respective Dockerfile links
Currently Supported LTS Versions
Currently Supported Non-LTS Versions
Deprecated/EOL LTS Versions
Deprecated/EOL Non-LTS Versions
Rolling/Development Versions
Building and Running
Building Images
To build a specific Ubuntu version:
cd ubuntu2004 # or any version directory
docker build -t ubuntu:20.04 .
Running Containers
The images are designed to run with privileged access for systemd support:
# Run with systemd support
docker run --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro -it ubuntu:20.04
# Run with Ansible support
docker run --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro -it ubuntu:20.04 /lib/systemd/systemd
Development Conventions
Dockerfile Patterns
Each Dockerfile follows a consistent pattern:
  1. Base image from official Ubuntu
  2. Install essential packages including systemd components
  3. Configure initctl faker for older Ubuntu versions
  4. Set up volumes for systemd functionality
  5. Define entrypoint and health checks
Systemd Support
The images are configured to support systemd services by:
  • Mounting /sys/fs/cgroup as a volume
  • Using systemd as the init process (/lib/systemd/systemd or /sbin/init)
  • Disabling problematic services like getty that consume CPU in containerized environments
Ansible Integration
Many images include Ansible support (often commented out by default) with:
  • Python package installations
  • Inventory configuration
  • Service management capabilities
Maintainer
About
Ubuntu Base Images
hub.docker.com/r/buluma/ubuntu
Resources
Readme
GPL-3.0 license
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