# T3: automatic leader-failover gate (m11p4/p5 election under quorum write load).
# Gate: kill the leader pod → election completes automatically, writes resume
# with < 10s p99 gap, zero operator action, zero acked loss; 10 kill trials.
#
# Cluster: tidaldb-cluster ns — one StatefulSet, pod-DNS peer addressing.
# Targets: all 3 pod DNS names (so status-poll reaches survivors during kill window).
# leader-url: the client Service VIP (routes to any ready pod; survivors forward
#   writes to the elected leader, so the gap is election-time + one RTT, not
#   election-time + readiness-probe-period).
#
# Run:   kubectl apply -f tidal-stress/k8s/stress-job-t3.yaml
# Watch: kubectl logs -f job/tidal-stress-t3 -n tidaldb-cluster
# Kill:  kubectl delete pod tidaldb-<N> -n tidaldb-cluster --grace-period=0
# Rearm: kubectl delete job tidal-stress-t3 -n tidaldb-cluster
apiVersion: batch/v1
kind: Job
metadata:
  name: tidal-stress-t3
  namespace: tidaldb-cluster
  labels:
    app.kubernetes.io/name: tidal-stress
    app.kubernetes.io/part-of: tidaldb
spec:
  backoffLimit: 0
  ttlSecondsAfterFinished: 7200
  template:
    metadata:
      labels:
        app.kubernetes.io/name: tidal-stress
        app.kubernetes.io/part-of: tidaldb
    spec:
      restartPolicy: Never
      automountServiceAccountToken: false
      securityContext:
        runAsNonRoot: true
        runAsUser: 1000
        runAsGroup: 1000
        seccompProfile:
          type: RuntimeDefault
      containers:
        - name: stress
          image: registry.threesix.ai/tidal/stress@sha256:3a75c311e53f8eb7caf6441bfb40bc9c0611ab739ee33909ca700c7d5c29db16  # :m11p3
          imagePullPolicy: IfNotPresent
          args:
            - --target
            - http://tidaldb-0.tidaldb-peers.tidaldb-cluster.svc.cluster.local:9500
            - --target
            - http://tidaldb-1.tidaldb-peers.tidaldb-cluster.svc.cluster.local:9500
            - --target
            - http://tidaldb-2.tidaldb-peers.tidaldb-cluster.svc.cluster.local:9500
            - --leader-url
            - http://tidaldb.tidaldb-cluster.svc.cluster.local:9500  # service VIP — routes to any ready pod
            - --ack
            - quorum
            - --ramp
            - 1500:900               # 1500 rps sustained for 15 min (10 kills)
            - --mix
            - writes
            - --write-path
            - leader
            - --corpus
            - "20000"
            - --users
            - "100000"
            - --poll-status          # re-discovers new leader after each election
          env:
            - name: TIDAL_API_KEY
              valueFrom:
                secretKeyRef:
                  name: tidaldb-credentials
                  key: TIDAL_API_KEY
            - name: TIDAL_STRESS_LOG
              value: warn
          resources:
            requests:
              cpu: 250m
              memory: 256Mi
            limits:
              cpu: "3"
              memory: 1Gi
          securityContext:
            allowPrivilegeEscalation: false
            readOnlyRootFilesystem: true
            capabilities:
              drop: ["ALL"]