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deepseek-kubernetes-sandbox/deploy/k8s/sandbox-template.yaml
SREDevOps.org Agent 6301c21bea Make DSH agents-as-a-service browser-usable; fix probe crash-loop (#3)
* Rewrite DSH gateway for browser sessions, HTTP and WebSocket

- Replace the Flask proxy with a Starlette ASGI app (uvicorn factory),
  keeping the control plane (claims, wake/suspend, idle sweeper).
- Add HttpOnly gateway sessions and a server-side DSH launch-token
  handshake: read the token from pod logs, exchange it for a dsh-auth
  cookie, cache per (user, pod UID, Host), refresh once on 401.
- Proxy HTTP/SSE and WebSocket (/api/remote.mux) under /u/<user>/, with
  header stripping/injection, Location rewriting and wake-on-connect.
- Add a landing/signup/login page, health endpoint, pinned dependencies,
  a read-only-rootfs gateway image, 87 cluster-free tests and docs.

* Fix DSH probe crash-loop and harden gateway manifests

- Probe /favicon.svg instead of /: DSH gates / behind its launch-token
  cookie and returns 401, which made warm-pool pods crash-loop.
- Pass DSH_TRUSTED_HOSTS through the entrypoint as --trusted-host args
  for public/ingress hosts; keep localhost trusted.
- Deploy the published :gateway image, add pods/pods-log RBAC, /healthz
  probes, read-only rootfs with a /tmp emptyDir and non-root security.
- Add optional Traefik Ingress and document the prerequisites.

* Update CI, smoke tests, build tooling and docs

- Run gateway pytest/ruff and build/smoke-test the image in CI.
- Parameterize the DSH build version and pnpm version inputs.
- Exercise cookie signup, HTML proxy, WebSocket auth, suspend/wake and
  delete in run-test-kind.sh.
- Add Makefile/build.sh targets and document the architecture, handshake,
  probes, trusted hosts, troubleshooting and limitations.

---------

Co-authored-by: SREDevOpsAgents <agents@sredevops.org>
2026-10-21 12:10:03 -03:00

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YAML

# Minimal single-tenant SandboxTemplate for DeepSeek Harness Web.
#
# This is the "just one DSH Web" quick-start template. For the full
# multi-tenant platform (warm pool, per-user claims, gateway, idle-suspend),
# see examples/dsh-agents-as-a-service/.
#
# Prerequisites (create these first, or apply 00-prereqs.yaml from the
# examples directory):
# - Namespace dsh-demo.
# - Secret dsh-provider-keys in dsh-demo with key DEEPSEEK_API_KEY
# (injected via envFrom; the pod starts without it, only model calls fail).
# The agent-sandbox controller (v1.0.7, API v1beta1) must be installed.
apiVersion: extensions.agents.x-k8s.io/v1beta1
kind: SandboxTemplate
metadata:
name: dsh-web-template
namespace: dsh-demo
spec:
service: true # headless Service per Sandbox -> stable DNS (status.serviceFQDN)
podTemplate:
spec:
securityContext:
runAsNonRoot: true
runAsUser: 1000 # Matches the UID of the 'node' user
runAsGroup: 1000
fsGroup: 1000
containers:
- name: dsh-web
image: ghcr.io/sredevopsorg/deepseek-kubernetes-sandbox:dsh-v0.2.1-rc.2
imagePullPolicy: IfNotPresent
ports:
- name: web
containerPort: 3080
envFrom:
- secretRef:
name: dsh-provider-keys # Secret with key DEEPSEEK_API_KEY
env:
# Empty => DSH derives links from the request Host. Keep it empty
# when fronting the sandbox with a proxy/gateway.
- name: DSH_PUBLIC_URL
value: ""
# DSH Host/Origin-fences /api. Empty trusts only localhost, which
# is right for `kubectl port-forward`. Set this to the public host
# (e.g. dsh.example.com) if you expose DSH behind an Ingress, so
# requests forwarded with the browser's Host are accepted.
- name: DSH_TRUSTED_HOSTS
value: ""
volumeMounts:
- name: dsh-home
mountPath: /home/node/.dsh # DSH_HOME
# / is behind DSH's launch-token cookie (401 without it); use an
# unauthenticated path for probes.
readinessProbe:
httpGet:
path: /favicon.svg
port: 3080
initialDelaySeconds: 5
periodSeconds: 5
livenessProbe:
httpGet:
path: /favicon.svg
port: 3080
initialDelaySeconds: 15
periodSeconds: 15
securityContext:
allowPrivilegeEscalation: false
capabilities:
drop: ["ALL"]
seccompProfile:
type: RuntimeDefault
volumeClaimTemplates:
- metadata:
name: dsh-home
spec:
accessModes: ["ReadWriteOnce"]
resources:
requests:
storage: 5Gi
# storageClassName omitted => cluster default