feat: add edu_master k8s manifests for k0s migration

edu_master/k8s/namespace.yaml

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+apiVersion: v1
+kind: Namespace
+metadata:
+  name: edu-master

edu_master/k8s/playwright.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: playwright-service
+  namespace: edu-master
+  labels:
+    app: edu-master-playwright
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: edu-master-playwright
+  template:
+    metadata:
+      labels:
+        app: edu-master-playwright
+    spec:
+      containers:
+        - name: playwright
+          image: mcr.microsoft.com/playwright:v1.56.0-jammy
+          imagePullPolicy: IfNotPresent
+          command:
+            - npx
+            - -y
+            - playwright@1.56.0
+            - run-server
+            - --port
+            - "3000"
+            - --path
+            - /ws
+          ports:
+            - containerPort: 3000
+          readinessProbe:
+            tcpSocket:
+              port: 3000
+            initialDelaySeconds: 5
+            periodSeconds: 10
+            timeoutSeconds: 3
+          livenessProbe:
+            tcpSocket:
+              port: 3000
+            initialDelaySeconds: 15
+            periodSeconds: 20
+            timeoutSeconds: 3
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: playwright-service
+  namespace: edu-master
+spec:
+  selector:
+    app: edu-master-playwright
+  ports:
+    - name: ws
+      port: 3000
+      targetPort: 3000

edu_master/k8s/redis.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: redis
+  namespace: edu-master
+  labels:
+    app: edu-master-redis
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: edu-master-redis
+  template:
+    metadata:
+      labels:
+        app: edu-master-redis
+    spec:
+      containers:
+        - name: redis
+          image: redis:alpine
+          imagePullPolicy: IfNotPresent
+          ports:
+            - containerPort: 6379
+          volumeMounts:
+            - name: redis-data
+              mountPath: /data
+          resources:
+            requests:
+              cpu: 25m
+              memory: 64Mi
+            limits:
+              cpu: 250m
+              memory: 256Mi
+          readinessProbe:
+            exec:
+              command: ["redis-cli", "ping"]
+            initialDelaySeconds: 5
+            periodSeconds: 5
+            timeoutSeconds: 3
+          livenessProbe:
+            exec:
+              command: ["redis-cli", "ping"]
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            timeoutSeconds: 3
+      volumes:
+        - name: redis-data
+          persistentVolumeClaim:
+            claimName: redis-data-pvc
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: redis-data-pvc
+  namespace: edu-master
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: redis
+  namespace: edu-master
+spec:
+  selector:
+    app: edu-master-redis
+  ports:
+    - name: redis
+      port: 6379
+      targetPort: 6379

edu_master/k8s/restore-seed-job.yaml.example

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+# Разовый Job для переноса состояния redis из docker compose в k8s (maintenance window).
+# Файл .example -> deploy-пайплайн его не применяет (маска *.example.yaml).
+#
+# Runbook:
+#   1. docker compose -f <repo>/edu_master/compose.yaml stop        # SIGTERM -> redis сбросит dump.rdb
+#   2. docker run --rm -v edu_master_redis-data:/data \
+#        -v /tmp/edu-master-backup:/backup \
+#        redis:alpine sh -c "cp /data/dump.rdb /backup/ && ls -la /backup"
+#   3. kubectl apply -f edu_master/k8s/namespace.yaml
+#   4. kubectl apply -f <только PVC из redis.yaml>                  # seed строго ДО старта redis-пода
+#   5. kubectl apply -f edu_master/k8s/restore-seed-job.yaml.example
+#      kubectl wait --for=condition=complete job/redis-restore-seed -n edu-master --timeout=120s
+#   6. kubectl delete job redis-restore-seed -n edu-master
+#   7. kubectl apply -f edu_master/k8s/ -R                           # остальные манифесты
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: redis-restore-seed
+  namespace: edu-master
+spec:
+  backoffLimit: 2
+  ttlSecondsAfterFinished: 3600
+  template:
+    spec:
+      restartPolicy: Never
+      containers:
+        - name: seed
+          image: redis:alpine
+          command:
+            - /bin/sh
+            - -ec
+            - |
+              ls -la /backup
+              cp /backup/dump.rdb /data/dump.rdb
+              chmod 644 /data/dump.rdb
+              ls -la /data
+          volumeMounts:
+            - name: redis-data
+              mountPath: /data
+            - name: backup
+              mountPath: /backup
+              readOnly: true
+      volumes:
+        - name: redis-data
+          persistentVolumeClaim:
+            claimName: redis-data-pvc
+        - name: backup
+          hostPath:
+            path: /tmp/edu-master-backup
+            type: DirectoryOrCreate

edu_master/k8s/secrets.yaml.example

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+apiVersion: v1
+kind: Secret
+metadata:
+  name: edu-master-secrets
+  namespace: edu-master
+type: Opaque
+stringData:
+  # PHPSESSID keeper
+  KEEPER_LOGIN: ""
+  KEEPER_PASSWORD: ""
+  KEEPER_INTERVAL: "10"
+  # EDU links
+  EDU_URL_BASE: "https://edu.edu.vn.ua"
+  EDU_URL_LOGIN: "/user/login"
+  EDU_URL_COURSES: "/course/userlist"
+  EDU_URL_WEBINAR: "/webinar/useractive"
+  # Playwright
+  USER_AGENT: ""
+  PLAYWRIGHT_WS: "ws://playwright-service:3000/ws"
+  # Webinar-checker
+  WEBINAR_TELEGRAM_TOKEN: ""
+  WEBINAR_ADMIN_ID: ""
+  WEBINAR_CHECK_INTERVAL: "60"
+  # Database
+  REDIS_HOST: "redis"
+  REDIS_PORT: "6379"

edu_master/k8s/session-keeper.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: session-keeper
+  namespace: edu-master
+  labels:
+    app: edu-master-session-keeper
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: edu-master-session-keeper
+  template:
+    metadata:
+      labels:
+        app: edu-master-session-keeper
+    spec:
+      initContainers:
+        - name: wait-redis
+          image: redis:alpine
+          command:
+            - /bin/sh
+            - -ec
+            - |
+              i=0
+              until redis-cli -h redis ping | grep -q PONG; do
+                i=$((i+1))
+                [ "$i" -ge 300 ] && echo "TIMEOUT: redis not ready" && exit 1
+                sleep 2
+              done
+              echo "redis is ready"
+      containers:
+        - name: session-keeper
+          image: gcr.forust.xyz/forust/session-keeper:latest
+          imagePullPolicy: Always
+          envFrom:
+            - secretRef:
+                name: edu-master-secrets
+          resources:
+            requests:
+              cpu: 25m
+              memory: 96Mi
+            limits:
+              cpu: 250m
+              memory: 256Mi
+          readinessProbe:
+            exec:
+              command: ["/bin/sh", "-ec", "redis-cli -h redis EXISTS EDU_PHPSESSID | grep -q 1"]
+            initialDelaySeconds: 15
+            periodSeconds: 30
+            timeoutSeconds: 5
+            failureThreshold: 10

edu_master/k8s/webinar-checker.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: webinar-checker
+  namespace: edu-master
+  labels:
+    app: edu-master-webinar-checker
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: edu-master-webinar-checker
+  template:
+    metadata:
+      labels:
+        app: edu-master-webinar-checker
+    spec:
+      initContainers:
+        # Держит порядок зависимостей как в compose depends_on:
+        # redis healthy -> session-keeper healthy (EXISTS EDU_PHPSESSID) -> playwright started
+        - name: wait-deps
+          image: redis:alpine
+          command:
+            - /bin/sh
+            - -ec
+            - |
+              i=0
+              until redis-cli -h redis ping | grep -q PONG; do
+                i=$((i+1))
+                [ "$i" -ge 300 ] && echo "TIMEOUT: redis not ready" && exit 1
+                sleep 2
+              done
+              echo "redis ok"
+              until [ "$(redis-cli -h redis EXISTS EDU_PHPSESSID)" = "1" ]; do
+                i=$((i+1))
+                [ "$i" -ge 300 ] && echo "TIMEOUT: no PHPSESSID (session-keeper down?)" && exit 1
+                sleep 2
+              done
+              echo "PHPSESSID ok"
+              until nc -z playwright-service 3000; do
+                i=$((i+1))
+                [ "$i" -ge 300 ] && echo "TIMEOUT: playwright-service not reachable" && exit 1
+                sleep 2
+              done
+              echo "playwright ok"
+      containers:
+        - name: webinar-checker
+          image: gcr.forust.xyz/forust/webinar-checker:latest
+          imagePullPolicy: Always
+          envFrom:
+            - secretRef:
+                name: edu-master-secrets
+          resources:
+            requests:
+              cpu: 25m
+              memory: 128Mi
+            limits:
+              cpu: 300m
+              memory: 384Mi