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1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesTo deploy an Angular Progressive Web App to Kubernetes, build its production files, serve them from a containerized web server configured for Angular route fallback, and run that image behind a Kubernetes Service and an external HTTP entry point. The Angular service worker handles browser-side caching and updates; Kubernetes runs and routes traffic to the web server. You must also decide how browser requests reach the API: through a same-origin path such as /api, or through a separate API origin.
1. Enable the Angular service worker and review its cache rules
Add PWA support
In an Angular CLI workspace, run ng add @angular/pwa. The schematic adds the service-worker package and build integration, registers the worker, updates index.html with the manifest link and theme color, installs icon assets, and creates ngsw-config.json. See Angular’s service-worker setup guide.
Choose what the browser caches
Review ngsw-config.json before release. It defines which build files and data URLs the worker caches and how those resources update; Angular processes it during ng build, and configured paths are relative to the deployment directory. Cache app assets deliberately. Caching mutable API responses too aggressively can leave users looking at stale data, while precaching more resources can increase the first download.
Angular identifies a build as a versioned collection of resources, using ngsw.json and content hashes to detect changes. Its documented update behavior keeps an already-running app on its current resource version while a new version downloads and installs; a later open can receive the fully cached newer version. Validate this behavior during releases rather than assuming every open immediately switches versions. See service-worker configuration and service-worker deployment and operations.
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Provide HTTPS at the public origin
Service-worker registration requires HTTPS, except on localhost. The browser must see HTTPS at the public origin; TLS can terminate at an ingress or gateway rather than inside the application Pod. Test registration and update behavior through that public HTTPS URL, not only through an internal cluster address. Angular’s getting-started guide documents the HTTPS requirement.
2. Build the app and serve it as a single-page application
Run ng build to produce the frontend artifacts. Angular uses the production configuration by default unless the workspace has customized its build settings; production compilation includes optimizations such as AOT compilation, bundling, minification, and dead-code elimination. The output path and directory layout depend on the workspace and builder. Inspect the build output and copy the browser files—not server-side output, if present—to the web server. Angular explains the build and deployment behavior in its deployment documentation.
The web server must serve index.html when a requested path is an Angular client-side route rather than a real file. Without that fallback, visiting or refreshing a URL such as /account/settings can produce a server 404 before Angular starts. Static assets should still be served as files when they exist.
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For example, an Nginx server can use this fallback inside its site configuration:
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location / {
try_files $uri $uri/ /index.html;
}Do not assume a universal output directory such as dist/app: current workspaces can produce a browser subdirectory such as dist/app/browser. Use the path actually generated by your build.
3. Package the static files and web server into an image
A container image gives Kubernetes both the Angular files and the server that delivers them. The example below uses Nginx as the static server. Replace the builder image, project directory, and output path with values matching your workspace; keep the Nginx configuration alongside the application source.
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FROM node:22-alpine AS build
WORKDIR /workspace
COPY package*.json ./
RUN npm ci
COPY . .
RUN npx ng build
FROM nginx:alpine
COPY nginx.conf /etc/nginx/conf.d/default.conf
COPY --from=build /workspace/dist/your-app/browser/ /usr/share/nginx/html/This assumes the build emits browser files in dist/your-app/browser. If it emits elsewhere, change the copy source. Pin and update base-image versions according to your release process, and make sure the final image contains no build-only files or private credentials. Frontend JavaScript and configuration are delivered to browsers, so secrets placed in the bundle are not secret. Kubernetes describes the image and registry workflow in its container image documentation.
Build and push the image to a registry your cluster can access, then use that published image in the Deployment. For example, replace the names and registry with your own:
docker build -t registry.example.com/team/angular-pwa:1.0.0 .
docker push registry.example.com/team/angular-pwa:1.0.04. Run the image with a Kubernetes Deployment and Service
A Deployment declares the desired frontend replicas and image; it manages the Pods and supports declarative updates. A Service provides a stable network address for the matching Pods even as individual Pod addresses change. The following manifest is a starting point for a stateless frontend. Replace the image and namespace as needed.
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apiVersion: apps/v1
kind: Deployment
metadata:
name: angular-pwa
spec:
replicas: 2
selector:
matchLabels:
app: angular-pwa
template:
metadata:
labels:
app: angular-pwa
spec:
containers:
- name: web
image: registry.example.com/team/angular-pwa:1.0.0
ports:
- name: http
containerPort: 80
readinessProbe:
httpGet:
path: /healthz
port: http
livenessProbe:
httpGet:
path: /healthz
port: http
---
apiVersion: v1
kind: Service
metadata:
name: angular-pwa
spec:
selector:
app: angular-pwa
ports:
- name: http
port: 80
targetPort: httpFor these probes to succeed, configure the web server to respond successfully at /healthz; for Nginx, one simple location is:
location = /healthz {
access_log off;
return 200 "ok";
}Readiness controls whether a Pod is eligible for Service traffic. Liveness can cause a container restart after repeated failures. A startup probe is useful when an application needs time to start because it delays readiness and liveness checks until startup succeeds. A static server usually needs a cheap local response check; do not make liveness depend on a remote API unless an API outage should restart every frontend Pod. Kubernetes warns that poorly designed liveness checks can contribute to cascading failures. See the probe documentation.
Learn more about Deployments and Services.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.5. Choose how external traffic reaches the frontend and API
A Service is an in-cluster abstraction; exposing the site publicly also requires an HTTP entry point and a controller that implements it. Kubernetes Ingress can route host and path rules to Services and support TLS termination, but it requires an Ingress controller. Kubernetes now describes Ingress as frozen and recommends Gateway for new development. Gateway support and behavior depend on the cluster and its installed controller, so select an implementation your platform actually provides. See the Kubernetes Ingress documentation.
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Choose the frontend/API arrangement before configuring routes or Angular’s API base URL:
| Choice | How it works | Main implications |
|---|---|---|
| One public origin | Route /api to the backend Service and other paths to the frontend Service. |
Keeps browser requests on one origin and avoids cross-origin API configuration. The routing resource must send the API prefix to the backend and preserve the frontend route fallback for app paths. |
| Separate frontend and API origins | Serve the app and API on different hostnames or origins. | Configure backend CORS for the frontend origin and set Angular’s API base URL for the target environment. Ensure the public frontend origin uses HTTPS for the service worker. |
The title does not specify a backend framework or cluster controller, so there is no universal routing manifest. In either design, route requests to Kubernetes Services rather than directly to changing Pod IP addresses. Ingress or Gateway configuration is the platform-specific layer that connects the public host and paths to those Services.
6. Decide when environment settings enter the image
Build-time configuration is straightforward when each environment receives its own frontend build. Runtime configuration lets the same image move between environments, but requires a deliberate mechanism for exposing the appropriate public settings to the browser. Runtime settings delivered to a client remain public even if their source was a Kubernetes Secret.
| Approach | Use it when | Trade-off |
|---|---|---|
| Build-time | Each environment can build or receive its own artifact with the correct public API URL. | The artifact is environment-specific, so promoting one unchanged image between environments is not the model. |
| Runtime public configuration | You need one image to be promoted across environments and can serve a generated public configuration file or equivalent. | Adds startup or deployment wiring and requires the frontend to load that configuration. It must contain no confidential values. |
Kubernetes ConfigMaps are for non-confidential configuration; Secrets are intended for confidential values. Neither makes a value safe to expose in browser-delivered files. Use them according to their purpose and keep credentials on the server side. See Kubernetes configuration documentation.
7. Roll out and validate a release
Build and push a new image tag, update the Deployment image, and observe the rollout status using your normal Kubernetes workflow. Deployment updates replace Pods declaratively; browser service workers may continue serving an older app version while the new version installs. Keep the server able to serve the relevant immutable assets and ensure API changes remain compatible with clients that may not update immediately.
- Open a nested Angular route directly and refresh it; the server should return the app rather than a 404.
- Confirm scripts, styles, icons, and manifest load from the deployed paths.
- Use the public HTTPS origin to verify service-worker registration.
- Test first installation, offline behavior supported by the cache rules, and update activation between releases.
- Call the API from the browser and verify the chosen same-origin route or cross-origin CORS policy.
- Check that the readiness endpoint responds and that a frontend Pod becomes ready; verify probe failures do not create unnecessary restart loops.
Angular’s documented service-worker version behavior is described in its DevOps guide; Kubernetes documents declarative updates in its Deployment guide.
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