BranchesTags

Repository files navigation

Kube Workspaces Controller

LicenseGo VersionReleaseTestsE2E TestsLintDocker Image

Kubernetes controller that manages the lifecycle of Workspace custom resources.

Overview

The controller watches for Workspace CRs and reconciles them into:

  • A StatefulSet (replicas 0 or 1) running the workspace container
  • A ClusterIP Service exposing the workspace on port 80

CRD

  • Group:kubeworkspaces.io
  • Version:v1alpha1
  • Kind:Workspace
  • Scope: Namespaced

The spec wraps a full corev1.PodSpec under spec.template.spec, mirroring the Kubeflow Notebook CRD pattern. This gives full flexibility for container configuration including env vars, args, volume mounts, resource limits, etc.

Status

The controller reports:

  • readyReplicas - Number of ready pods (0 or 1)
  • containerState - Running/waiting/terminated state of the first container
  • conditions - Pod conditions mirrored to the workspace

Start/Stop

  • Stop: Add annotation kubeworkspaces.io/stopped: "true" (sets replicas to 0)
  • Start: Remove the annotation (sets replicas to 1)

The controller watches for annotation changes and updates the StatefulSet replicas accordingly.

Reconciliation Logic

  1. Ensure StatefulSet exists (create or update)
  2. Ensure Service exists (create if missing)
  3. Check for kubeworkspaces.io/stopped annotation -> set replicas to 0 or 1
  4. Update workspace status from pod state (container state, conditions, ready replicas)
  5. Ensure default container port if not specified (default: 8080)

Development

# Generate CRD manifests
make manifests
# Generate deepcopy code
make generate
# Install CRD to cluster
make install
# Run controller locally
make run

Docker

docker build -t kube-workspaces-controller:latest -f Dockerfile .

Sample Resources

kubectl apply --server-side -f config/samples/v1alpha1_workspace.yaml
kubectl apply --server-side -f config/samples/v1alpha1_workspace_desktop.yaml

Note: --server-side is required because the CRD is too large for client-side apply.

RBAC

The controller requires a ClusterRole with permissions for:

  • workspaces.kubeworkspaces.io - all verbs + status subresource
  • apps/statefulsets - create, get, list, watch, update, delete
  • core/services - create, get, list, watch, update, delete
  • core/pods - get, list, watch
  • core/pods/log - get
  • core/events - get, list, watch

Related Repositories

RepositoryDescription
kube-workspaces/apiREST API service
kube-workspaces/proxyWorkspace reverse proxy
kube-workspaces/frontendNext.js web UI
kube-workspaces/deployDeployment manifests and documentation

License

Apache License 2.0

About

Kubernetes controller for kube-workspaces (kubebuilder, CRDs)

kubeworkspaces.io

Topics

cloud-nativecontrollercrdgolangkube-workspaceskubebuilderkubernetes

Resources

Readme
Apache-2.0 license

Code of conduct

Code of conduct

Contributing

Contributing

Security policy

Security policy
Activity
Custom properties

Stars

1 star

Watchers

0 watching

Forks

0 forks
Report repository

Releases

Packages

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
Repository files navigation
Kube Workspaces Controller
LicenseGo VersionReleaseTestsE2E TestsLintDocker Image
Kubernetes controller that manages the lifecycle of Workspace custom resources.
Overview
The controller watches for Workspace CRs and reconciles them into:
  • A StatefulSet (replicas 0 or 1) running the workspace container
  • A ClusterIP Service exposing the workspace on port 80
CRD
  • Group:kubeworkspaces.io
  • Version:v1alpha1
  • Kind:Workspace
  • Scope: Namespaced
The spec wraps a full corev1.PodSpec under spec.template.spec, mirroring the Kubeflow Notebook CRD pattern. This gives full flexibility for container configuration including env vars, args, volume mounts, resource limits, etc.
Status
The controller reports:
  • readyReplicas - Number of ready pods (0 or 1)
  • containerState - Running/waiting/terminated state of the first container
  • conditions - Pod conditions mirrored to the workspace
Start/Stop
  • Stop: Add annotation kubeworkspaces.io/stopped: "true" (sets replicas to 0)
  • Start: Remove the annotation (sets replicas to 1)
The controller watches for annotation changes and updates the StatefulSet replicas accordingly.
Reconciliation Logic
  1. Ensure StatefulSet exists (create or update)
  2. Ensure Service exists (create if missing)
  3. Check for kubeworkspaces.io/stopped annotation -> set replicas to 0 or 1
  4. Update workspace status from pod state (container state, conditions, ready replicas)
  5. Ensure default container port if not specified (default: 8080)
Development
# Generate CRD manifests
make manifests
# Generate deepcopy code
make generate
# Install CRD to cluster
make install
# Run controller locally
make run
Docker
docker build -t kube-workspaces-controller:latest -f Dockerfile .
Sample Resources
kubectl apply --server-side -f config/samples/v1alpha1_workspace.yaml
kubectl apply --server-side -f config/samples/v1alpha1_workspace_desktop.yaml
Note: --server-side is required because the CRD is too large for client-side apply.
RBAC
The controller requires a ClusterRole with permissions for:
  • workspaces.kubeworkspaces.io - all verbs + status subresource
  • apps/statefulsets - create, get, list, watch, update, delete
  • core/services - create, get, list, watch, update, delete
  • core/pods - get, list, watch
  • core/pods/log - get
  • core/events - get, list, watch
Related Repositories
RepositoryDescription
kube-workspaces/apiREST API service
kube-workspaces/proxyWorkspace reverse proxy
kube-workspaces/frontendNext.js web UI
kube-workspaces/deployDeployment manifests and documentation
License
Apache License 2.0
About
Kubernetes controller for kube-workspaces (kubebuilder, CRDs)
kubeworkspaces.io
Topics
cloud-nativecontrollercrdgolangkube-workspaceskubebuilderkubernetes
Resources
Readme
Apache-2.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Security policy
Security policy
Activity
Custom properties
Stars
1 star
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
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
Kube Workspaces Controller
LicenseGo VersionReleaseTestsE2E TestsLintDocker Image
Kubernetes controller that manages the lifecycle of Workspace custom resources.
Overview
The controller watches for Workspace CRs and reconciles them into:
  • A StatefulSet (replicas 0 or 1) running the workspace container
  • A ClusterIP Service exposing the workspace on port 80
CRD
  • Group:kubeworkspaces.io
  • Version:v1alpha1
  • Kind:Workspace
  • Scope: Namespaced
The spec wraps a full corev1.PodSpec under spec.template.spec, mirroring the Kubeflow Notebook CRD pattern. This gives full flexibility for container configuration including env vars, args, volume mounts, resource limits, etc.
Status
The controller reports:
  • readyReplicas - Number of ready pods (0 or 1)
  • containerState - Running/waiting/terminated state of the first container
  • conditions - Pod conditions mirrored to the workspace
Start/Stop
  • Stop: Add annotation kubeworkspaces.io/stopped: "true" (sets replicas to 0)
  • Start: Remove the annotation (sets replicas to 1)
The controller watches for annotation changes and updates the StatefulSet replicas accordingly.
Reconciliation Logic
  1. Ensure StatefulSet exists (create or update)
  2. Ensure Service exists (create if missing)
  3. Check for kubeworkspaces.io/stopped annotation -> set replicas to 0 or 1
  4. Update workspace status from pod state (container state, conditions, ready replicas)
  5. Ensure default container port if not specified (default: 8080)
Development
# Generate CRD manifests
make manifests
# Generate deepcopy code
make generate
# Install CRD to cluster
make install
# Run controller locally
make run
Docker
docker build -t kube-workspaces-controller:latest -f Dockerfile .
Sample Resources
kubectl apply --server-side -f config/samples/v1alpha1_workspace.yaml
kubectl apply --server-side -f config/samples/v1alpha1_workspace_desktop.yaml
Note: --server-side is required because the CRD is too large for client-side apply.
RBAC
The controller requires a ClusterRole with permissions for:
  • workspaces.kubeworkspaces.io - all verbs + status subresource
  • apps/statefulsets - create, get, list, watch, update, delete
  • core/services - create, get, list, watch, update, delete
  • core/pods - get, list, watch
  • core/pods/log - get
  • core/events - get, list, watch
Related Repositories
RepositoryDescription
kube-workspaces/apiREST API service
kube-workspaces/proxyWorkspace reverse proxy
kube-workspaces/frontendNext.js web UI
kube-workspaces/deployDeployment manifests and documentation
License
Apache License 2.0
About
Kubernetes controller for kube-workspaces (kubebuilder, CRDs)
kubeworkspaces.io
Topics
cloud-nativecontrollercrdgolangkube-workspaceskubebuilderkubernetes
Resources
Readme
Apache-2.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Security policy
Security policy
Activity
Custom properties
Stars
1 star
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
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
Repository files navigation
Kube Workspaces Controller
LicenseGo VersionReleaseTestsE2E TestsLintDocker Image
Kubernetes controller that manages the lifecycle of Workspace custom resources.
Overview
The controller watches for Workspace CRs and reconciles them into:
  • A StatefulSet (replicas 0 or 1) running the workspace container
  • A ClusterIP Service exposing the workspace on port 80
CRD
  • Group:kubeworkspaces.io
  • Version:v1alpha1
  • Kind:Workspace
  • Scope: Namespaced
The spec wraps a full corev1.PodSpec under spec.template.spec, mirroring the Kubeflow Notebook CRD pattern. This gives full flexibility for container configuration including env vars, args, volume mounts, resource limits, etc.
Status
The controller reports:
  • readyReplicas - Number of ready pods (0 or 1)
  • containerState - Running/waiting/terminated state of the first container
  • conditions - Pod conditions mirrored to the workspace
Start/Stop
  • Stop: Add annotation kubeworkspaces.io/stopped: "true" (sets replicas to 0)
  • Start: Remove the annotation (sets replicas to 1)
The controller watches for annotation changes and updates the StatefulSet replicas accordingly.
Reconciliation Logic
  1. Ensure StatefulSet exists (create or update)
  2. Ensure Service exists (create if missing)
  3. Check for kubeworkspaces.io/stopped annotation -> set replicas to 0 or 1
  4. Update workspace status from pod state (container state, conditions, ready replicas)
  5. Ensure default container port if not specified (default: 8080)
Development
# Generate CRD manifests
make manifests
# Generate deepcopy code
make generate
# Install CRD to cluster
make install
# Run controller locally
make run
Docker
docker build -t kube-workspaces-controller:latest -f Dockerfile .
Sample Resources
kubectl apply --server-side -f config/samples/v1alpha1_workspace.yaml
kubectl apply --server-side -f config/samples/v1alpha1_workspace_desktop.yaml
Note: --server-side is required because the CRD is too large for client-side apply.
RBAC
The controller requires a ClusterRole with permissions for:
  • workspaces.kubeworkspaces.io - all verbs + status subresource
  • apps/statefulsets - create, get, list, watch, update, delete
  • core/services - create, get, list, watch, update, delete
  • core/pods - get, list, watch
  • core/pods/log - get
  • core/events - get, list, watch
Related Repositories
RepositoryDescription
kube-workspaces/apiREST API service
kube-workspaces/proxyWorkspace reverse proxy
kube-workspaces/frontendNext.js web UI
kube-workspaces/deployDeployment manifests and documentation
License
Apache License 2.0
About
Kubernetes controller for kube-workspaces (kubebuilder, CRDs)
kubeworkspaces.io
Topics
cloud-nativecontrollercrdgolangkube-workspaceskubebuilderkubernetes
Resources
Readme
Apache-2.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Security policy
Security policy
Activity
Custom properties
Stars
1 star
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
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
Kube Workspaces Controller
LicenseGo VersionReleaseTestsE2E TestsLintDocker Image
Kubernetes controller that manages the lifecycle of Workspace custom resources.
Overview
The controller watches for Workspace CRs and reconciles them into:
  • A StatefulSet (replicas 0 or 1) running the workspace container
  • A ClusterIP Service exposing the workspace on port 80
CRD
  • Group:kubeworkspaces.io
  • Version:v1alpha1
  • Kind:Workspace
  • Scope: Namespaced
The spec wraps a full corev1.PodSpec under spec.template.spec, mirroring the Kubeflow Notebook CRD pattern. This gives full flexibility for container configuration including env vars, args, volume mounts, resource limits, etc.
Status
The controller reports:
  • readyReplicas - Number of ready pods (0 or 1)
  • containerState - Running/waiting/terminated state of the first container
  • conditions - Pod conditions mirrored to the workspace
Start/Stop
  • Stop: Add annotation kubeworkspaces.io/stopped: "true" (sets replicas to 0)
  • Start: Remove the annotation (sets replicas to 1)
The controller watches for annotation changes and updates the StatefulSet replicas accordingly.
Reconciliation Logic
  1. Ensure StatefulSet exists (create or update)
  2. Ensure Service exists (create if missing)
  3. Check for kubeworkspaces.io/stopped annotation -> set replicas to 0 or 1
  4. Update workspace status from pod state (container state, conditions, ready replicas)
  5. Ensure default container port if not specified (default: 8080)
Development
# Generate CRD manifests
make manifests
# Generate deepcopy code
make generate
# Install CRD to cluster
make install
# Run controller locally
make run
Docker
docker build -t kube-workspaces-controller:latest -f Dockerfile .
Sample Resources
kubectl apply --server-side -f config/samples/v1alpha1_workspace.yaml
kubectl apply --server-side -f config/samples/v1alpha1_workspace_desktop.yaml
Note: --server-side is required because the CRD is too large for client-side apply.
RBAC
The controller requires a ClusterRole with permissions for:
  • workspaces.kubeworkspaces.io - all verbs + status subresource
  • apps/statefulsets - create, get, list, watch, update, delete
  • core/services - create, get, list, watch, update, delete
  • core/pods - get, list, watch
  • core/pods/log - get
  • core/events - get, list, watch
Related Repositories
RepositoryDescription
kube-workspaces/apiREST API service
kube-workspaces/proxyWorkspace reverse proxy
kube-workspaces/frontendNext.js web UI
kube-workspaces/deployDeployment manifests and documentation
License
Apache License 2.0
About
Kubernetes controller for kube-workspaces (kubebuilder, CRDs)
kubeworkspaces.io
Topics
cloud-nativecontrollercrdgolangkube-workspaceskubebuilderkubernetes
Resources
Readme
Apache-2.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Security policy
Security policy
Activity
Custom properties
Stars
1 star
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
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
Kube Workspaces Controller
LicenseGo VersionReleaseTestsE2E TestsLintDocker Image
Kubernetes controller that manages the lifecycle of Workspace custom resources.
Overview
The controller watches for Workspace CRs and reconciles them into:
  • A StatefulSet (replicas 0 or 1) running the workspace container
  • A ClusterIP Service exposing the workspace on port 80
CRD
  • Group:kubeworkspaces.io
  • Version:v1alpha1
  • Kind:Workspace
  • Scope: Namespaced
The spec wraps a full corev1.PodSpec under spec.template.spec, mirroring the Kubeflow Notebook CRD pattern. This gives full flexibility for container configuration including env vars, args, volume mounts, resource limits, etc.
Status
The controller reports:
  • readyReplicas - Number of ready pods (0 or 1)
  • containerState - Running/waiting/terminated state of the first container
  • conditions - Pod conditions mirrored to the workspace
Start/Stop
  • Stop: Add annotation kubeworkspaces.io/stopped: "true" (sets replicas to 0)
  • Start: Remove the annotation (sets replicas to 1)
The controller watches for annotation changes and updates the StatefulSet replicas accordingly.
Reconciliation Logic
  1. Ensure StatefulSet exists (create or update)
  2. Ensure Service exists (create if missing)
  3. Check for kubeworkspaces.io/stopped annotation -> set replicas to 0 or 1
  4. Update workspace status from pod state (container state, conditions, ready replicas)
  5. Ensure default container port if not specified (default: 8080)
Development
# Generate CRD manifests
make manifests
# Generate deepcopy code
make generate
# Install CRD to cluster
make install
# Run controller locally
make run
Docker
docker build -t kube-workspaces-controller:latest -f Dockerfile .
Sample Resources
kubectl apply --server-side -f config/samples/v1alpha1_workspace.yaml
kubectl apply --server-side -f config/samples/v1alpha1_workspace_desktop.yaml
Note: --server-side is required because the CRD is too large for client-side apply.
RBAC
The controller requires a ClusterRole with permissions for:
  • workspaces.kubeworkspaces.io - all verbs + status subresource
  • apps/statefulsets - create, get, list, watch, update, delete
  • core/services - create, get, list, watch, update, delete
  • core/pods - get, list, watch
  • core/pods/log - get
  • core/events - get, list, watch
Related Repositories
RepositoryDescription
kube-workspaces/apiREST API service
kube-workspaces/proxyWorkspace reverse proxy
kube-workspaces/frontendNext.js web UI
kube-workspaces/deployDeployment manifests and documentation
License
Apache License 2.0
About
Kubernetes controller for kube-workspaces (kubebuilder, CRDs)
kubeworkspaces.io
Topics
cloud-nativecontrollercrdgolangkube-workspaceskubebuilderkubernetes
Resources
Readme
Apache-2.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Security policy
Security policy
Activity
Custom properties
Stars
1 star
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
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
Kube Workspaces Controller
LicenseGo VersionReleaseTestsE2E TestsLintDocker Image
Kubernetes controller that manages the lifecycle of Workspace custom resources.
Overview
The controller watches for Workspace CRs and reconciles them into:
  • A StatefulSet (replicas 0 or 1) running the workspace container
  • A ClusterIP Service exposing the workspace on port 80
CRD
  • Group:kubeworkspaces.io
  • Version:v1alpha1
  • Kind:Workspace
  • Scope: Namespaced
The spec wraps a full corev1.PodSpec under spec.template.spec, mirroring the Kubeflow Notebook CRD pattern. This gives full flexibility for container configuration including env vars, args, volume mounts, resource limits, etc.
Status
The controller reports:
  • readyReplicas - Number of ready pods (0 or 1)
  • containerState - Running/waiting/terminated state of the first container
  • conditions - Pod conditions mirrored to the workspace
Start/Stop
  • Stop: Add annotation kubeworkspaces.io/stopped: "true" (sets replicas to 0)
  • Start: Remove the annotation (sets replicas to 1)
The controller watches for annotation changes and updates the StatefulSet replicas accordingly.
Reconciliation Logic
  1. Ensure StatefulSet exists (create or update)
  2. Ensure Service exists (create if missing)
  3. Check for kubeworkspaces.io/stopped annotation -> set replicas to 0 or 1
  4. Update workspace status from pod state (container state, conditions, ready replicas)
  5. Ensure default container port if not specified (default: 8080)
Development
# Generate CRD manifests
make manifests
# Generate deepcopy code
make generate
# Install CRD to cluster
make install
# Run controller locally
make run
Docker
docker build -t kube-workspaces-controller:latest -f Dockerfile .
Sample Resources
kubectl apply --server-side -f config/samples/v1alpha1_workspace.yaml
kubectl apply --server-side -f config/samples/v1alpha1_workspace_desktop.yaml
Note: --server-side is required because the CRD is too large for client-side apply.
RBAC
The controller requires a ClusterRole with permissions for:
  • workspaces.kubeworkspaces.io - all verbs + status subresource
  • apps/statefulsets - create, get, list, watch, update, delete
  • core/services - create, get, list, watch, update, delete
  • core/pods - get, list, watch
  • core/pods/log - get
  • core/events - get, list, watch
Related Repositories
RepositoryDescription
kube-workspaces/apiREST API service
kube-workspaces/proxyWorkspace reverse proxy
kube-workspaces/frontendNext.js web UI
kube-workspaces/deployDeployment manifests and documentation
License
Apache License 2.0
About
Kubernetes controller for kube-workspaces (kubebuilder, CRDs)
kubeworkspaces.io
Topics
cloud-nativecontrollercrdgolangkube-workspaceskubebuilderkubernetes
Resources
Readme
Apache-2.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Security policy
Security policy
Activity
Custom properties
Stars
1 star
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
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); }
})();
})();

Skip to content
BranchesTags
Repository files navigation
Kube Workspaces Controller
LicenseGo VersionReleaseTestsE2E TestsLintDocker Image
Kubernetes controller that manages the lifecycle of Workspace custom resources.
Overview
The controller watches for Workspace CRs and reconciles them into:
  • A StatefulSet (replicas 0 or 1) running the workspace container
  • A ClusterIP Service exposing the workspace on port 80
CRD
  • Group:kubeworkspaces.io
  • Version:v1alpha1
  • Kind:Workspace
  • Scope: Namespaced
The spec wraps a full corev1.PodSpec under spec.template.spec, mirroring the Kubeflow Notebook CRD pattern. This gives full flexibility for container configuration including env vars, args, volume mounts, resource limits, etc.
Status
The controller reports:
  • readyReplicas - Number of ready pods (0 or 1)
  • containerState - Running/waiting/terminated state of the first container
  • conditions - Pod conditions mirrored to the workspace
Start/Stop
  • Stop: Add annotation kubeworkspaces.io/stopped: "true" (sets replicas to 0)
  • Start: Remove the annotation (sets replicas to 1)
The controller watches for annotation changes and updates the StatefulSet replicas accordingly.
Reconciliation Logic
  1. Ensure StatefulSet exists (create or update)
  2. Ensure Service exists (create if missing)
  3. Check for kubeworkspaces.io/stopped annotation -> set replicas to 0 or 1
  4. Update workspace status from pod state (container state, conditions, ready replicas)
  5. Ensure default container port if not specified (default: 8080)
Development
# Generate CRD manifests
make manifests
# Generate deepcopy code
make generate
# Install CRD to cluster
make install
# Run controller locally
make run
Docker
docker build -t kube-workspaces-controller:latest -f Dockerfile .
Sample Resources
kubectl apply --server-side -f config/samples/v1alpha1_workspace.yaml
kubectl apply --server-side -f config/samples/v1alpha1_workspace_desktop.yaml
Note: --server-side is required because the CRD is too large for client-side apply.
RBAC
The controller requires a ClusterRole with permissions for:
  • workspaces.kubeworkspaces.io - all verbs + status subresource
  • apps/statefulsets - create, get, list, watch, update, delete
  • core/services - create, get, list, watch, update, delete
  • core/pods - get, list, watch
  • core/pods/log - get
  • core/events - get, list, watch
Related Repositories
RepositoryDescription
kube-workspaces/apiREST API service
kube-workspaces/proxyWorkspace reverse proxy
kube-workspaces/frontendNext.js web UI
kube-workspaces/deployDeployment manifests and documentation
License
Apache License 2.0
About
Kubernetes controller for kube-workspaces (kubebuilder, CRDs)
kubeworkspaces.io
Topics
cloud-nativecontrollercrdgolangkube-workspaceskubebuilderkubernetes
Resources
Readme
Apache-2.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Security policy
Security policy
Activity
Custom properties
Stars
1 star
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages