example.yaml

gistfile1.txt

# Dev container StatefulSet.
#
# Usage: kubectl exec -it devcontainer-0 -- zsh -l
#
# - runs unprivileged as me:me (1000:1000), readOnlyRootFilesystem
# - /home/me is a PVC (repos, shell history, caches, all mutable state)
# - /tmp is an emptyDir
# - storageClassName is intentionally unset: uses the cluster default
#   (kind: local-path). Set it explicitly for your production cluster.
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: devcontainer
  labels:
    app: devcontainer
spec:
  serviceName: devcontainer
  replicas: 1
  selector:
    matchLabels:
      app: devcontainer
  template:
    metadata:
      labels:
        app: devcontainer
    spec:
      securityContext:
        runAsNonRoot: true
        runAsUser: 1000
        runAsGroup: 1000
        fsGroup: 1000
        fsGroupChangePolicy: OnRootMismatch
        seccompProfile:
          type: RuntimeDefault
      containers:
        - name: devcontainer
          image: devcontainer:dev
          imagePullPolicy: IfNotPresent
          securityContext:
            readOnlyRootFilesystem: true
            allowPrivilegeEscalation: false
            capabilities:
              drop:
                - ALL
          volumeMounts:
            - name: home
              mountPath: /home/me
            - name: tmp
              mountPath: /tmp
          resources:
            requests:
              cpu: 500m
              memory: 1Gi
      volumes:
        - name: tmp
          emptyDir: {}
  volumeClaimTemplates:
    - metadata:
        name: home
      spec:
        accessModes:
          - ReadWriteOnce
        resources:
          requests:
            storage: 20Gi