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deepseek-kubernetes-sandbox/examples/minimal-single-tenant/manifests/10-sandboxtemplate.yaml
Nicolás Georger 8e9bd478b4 chore: improve package installation and add Python depend… (#42)
* chore(dockerfile): improve package installation and add Python dependencies

* chore(dockerfile): update package installation commands for consistency

* chore: update release version to dsh-v0.2.1-rc.5-r6 across documentation and configuration files
2026-10-31 06:25:39 -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/.
#
# Claims reference this template directly (spec.sandboxTemplateRef): there is
# no warm pool and no per-user platform here. See the README for the full
# quickstart; in short the prerequisites are:
# - 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).
# - Optional: Secret dsh-provider-keys-extra with additional provider keys
# (OPENROUTER_API_KEY, GEMINI_API_KEY, NVIDIA_API_KEY, ...). It is
# referenced with `optional: true`, so it may be absent.
# The agent-sandbox controller (v1.0.8, 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)
# networkPolicyManagement is omitted, so the controller uses its Managed
# secure default (ingress only from the sandbox-router, public egress). This
# quickstart reaches the sandbox through `kubectl port-forward`, which is
# local to the pod. The multi-tenant example documents opt-in policies in
# examples/dsh-agents-as-a-service/docs/optional-hardening.md.
#
# OPTIONAL: recreate a Failed sandbox Pod instead of retaining it
# (agent-sandbox v1.0.8+). Documented with the multi-tenant example.
# failedPodPolicy: Recreate
podTemplate:
spec:
# OPTIONAL: run under gVisor. gVisor breaks `kubectl port-forward`, so
# this quickstart's only access path will not work; use the multi-tenant
# gateway example or a Service/NodePort instead.
# runtimeClassName: gvisor
#
# OPTIONAL: pin to a dedicated node pool. Replace the placeholder with a
# node label; add a matching toleration if the pool is tainted.
# nodeSelector:
# dsh.example.com/node-pool: dsh
securityContext:
runAsNonRoot: true
runAsUser: 1000 # Matches the UID of the 'node' user
runAsGroup: 1000
fsGroup: 1000
# DSH's credentials plugin refuses to start when .credentials.yaml has
# any group/other permission bit (it creates the file 0600). The
# default kubelet fsGroup policy ("Always") rewrites it to 0660 on every
# pod start, so a recreated or resumed sandbox crash-loops; OnRootMismatch
# avoids that walk once the volume root already carries the ownership.
# Rationale in full at
# examples/dsh-agents-as-a-service/manifests/10-sandboxtemplate.yaml.
fsGroupChangePolicy: OnRootMismatch
containers:
- name: dsh-web
image: ghcr.io/sredevopsorg/deepseek-kubernetes-sandbox:dsh-v0.2.1-rc.5-r6
imagePullPolicy: IfNotPresent
ports:
- name: web
containerPort: 3080
envFrom:
- secretRef:
name: dsh-provider-keys # Secret with key DEEPSEEK_API_KEY
# Optional extra provider keys; an absent Secret is safe.
- secretRef:
name: dsh-provider-keys-extra
optional: true
env:
# Point the OS home at the persisted agent workspace. DSH's
# directory picker (the folder explorer used to choose a workspace)
# lists $HOME when it opens and has no start-path setting, so with
# the image default (/home/node, not on a volume) it would open on a
# throwaway directory. /workspace is the PVC-backed WORKDIR, so the
# picker opens on the tree that survives suspend/resume, and `~` in
# agent commands resolves there. Trade-off: tools that keep caches
# or config under $HOME (npm/pnpm, uv, git, gh, DSH's global
# ~/.agents instructions and skills) write dotfiles onto the PVC
# inside the agent workspace. DSH_HOME is explicit
# (/home/node/.dsh), so sessions, config and credentials are
# unaffected. Rationale in full at
# examples/dsh-agents-as-a-service/manifests/10-sandboxtemplate.yaml.
- name: HOME
value: /workspace
# 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 front DSH with a proxy or Ingress,
# so requests forwarded with the browser's Host are accepted. The
# full example documents both exposure variants in
# examples/dsh-agents-as-a-service/manifests/exposure/README.md.
- name: DSH_TRUSTED_HOSTS
value: ""
# DSH's own bash file sandbox (bubblewrap, else Landlock) cannot be
# enforced in this hardened pod - bubblewrap is installed but is
# unsetuid and needs an unprivileged user namespace - and fails
# closed with SANDBOX_UNAVAILABLE. The pod is the boundary here;
# keep the deployment override in sync with the multi-tenant example
# and see its README troubleshooting row to restore a confined mode.
- name: DSH_PERMISSION_MODE
value: danger-full-access
volumeMounts:
- name: dsh-home
mountPath: /home/node/.dsh # DSH_HOME
# The agent workspace (the image's WORKDIR) is the same PVC under
# its own subPath, so DSH state - including .credentials.yaml -
# never shows up as workspace data. Kubelet creates workspace/ on
# first mount with the volume's fsGroup permissions; no init
# container is needed. See the multi-tenant template for details.
- name: dsh-home
mountPath: /workspace
subPath: workspace
# / is behind DSH's launch-token cookie (401 without it); use an
# unauthenticated path for probes. The startup probe gives a cold
# start (plugin activation on a small node, or the first resume of a
# suspended sandbox) up to 120s before liveness can restart it.
startupProbe:
httpGet:
path: /favicon.svg
port: 3080
periodSeconds: 5
failureThreshold: 24
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