added conf files for k8s

cluster1/configmap-init-scripts.yaml

@@ -0,0 +1,191 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: cluster1-init-scripts
+  namespace: cluster1
+data:
+  db1-init.sql: |
+    -- from Практика 3/init-scripts/db1-init.sql
+    -- Инициализация БД 1
+    -- Создание пользователей
+
+    -- Пользователь 1: видит только свою БД (database1)
+    CREATE USER user1_local WITH PASSWORD 'user1pass';
+    GRANT CONNECT ON DATABASE database1 TO user1_local;
+    GRANT USAGE ON SCHEMA public TO user1_local;
+    GRANT CREATE ON SCHEMA public TO user1_local;
+
+    -- Пользователь 1: может видеть БД в соседнем контейнере (database2)
+    -- Этот пользователь будет создан также в db2, что позволит ему подключаться к обеим БД
+    CREATE USER user1_cross WITH PASSWORD 'user1pass';
+    GRANT CONNECT ON DATABASE database1 TO user1_cross;
+    GRANT USAGE ON SCHEMA public TO user1_cross;
+    GRANT CREATE ON SCHEMA public TO user1_cross;
+
+    -- Создание таблиц
+    CREATE TABLE IF NOT EXISTS products (
+        id SERIAL PRIMARY KEY,
+        name VARCHAR(100) NOT NULL,
+        price DECIMAL(10, 2) NOT NULL,
+        quantity INTEGER NOT NULL,
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+    );
+
+    CREATE TABLE IF NOT EXISTS orders (
+        id SERIAL PRIMARY KEY,
+        customer_name VARCHAR(100) NOT NULL,
+        total_amount DECIMAL(10, 2) NOT NULL,
+        status VARCHAR(50) NOT NULL,
+        order_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+    );
+
+    -- Выдача прав на таблицы для user1_local
+    GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO user1_local;
+    GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA public TO user1_local;
+
+    -- Выдача прав на таблицы для user1_cross
+    GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO user1_cross;
+    GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA public TO user1_cross;
+
+    -- Настройка прав по умолчанию для будущих таблиц
+    ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL ON TABLES TO user1_local;
+    ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL ON TABLES TO user1_cross;
+    ALTER DEFAULT PRIVИЛЕGES IN SCHEMA public GRANT ALL ON SEQUENCES TO user1_local;
+    ALTER DEFAULT PRIVИЛЕGES IN SCHEMA public GRANT ALL ON SEQUENCES TO user1_cross;
+
+  db1-data.sql: |
+    -- from Практика 3/init-scripts/db1-data.sql
+    -- Заполнение таблиц случайными данными для БД 1
+
+    -- Вставка случайных данных в таблицу products
+    INSERT INTO products (name, price, quantity) VALUES
+        ('Ноутбук Dell XPS', 89999.99, 15),
+        ('Мышь Logitech MX', 3499.50, 42),
+        ('Клавиатура Mechanical', 5999.00, 28),
+        ('Монитор LG 27"', 24999.99, 12),
+        ('Наушники Sony WH-1000XM4', 19999.00, 35),
+        ('Веб-камера Logitech C920', 4999.00, 18),
+        ('Микрофон Blue Yeti', 8999.99, 8),
+        ('Коврик для мыши', 599.00, 100),
+        ('USB-C кабель', 1299.00, 55),
+        ('Внешний SSD 1TB', 8999.99, 22),
+        ('Планшет Samsung Galaxy', 29999.00, 14),
+        ('Смартфон iPhone 15', 79999.99, 9),
+        ('Умные часы Apple Watch', 24999.00, 20),
+        ('Портативная колонка JBL', 4999.00, 30),
+        ('Беспроводные наушники AirPods', 14999.00, 25);
+
+    -- Вставка случайных данных в таблицу orders
+    INSERT INTO orders (customer_name, total_amount, status) VALUES
+        ('Иван Петров', 125999.99, 'completed'),
+        ('Мария Сидорова', 3499.50, 'pending'),
+        ('Алексей Иванов', 5999.00, 'completed'),
+        ('Елена Козлова', 24999.99, 'processing'),
+        ('Дмитрий Смирнов', 19999.00, 'completed'),
+        ('Ольга Волкова', 4999.00, 'pending'),
+        ('Сергей Лебедев', 8999.99, 'completed'),
+        ('Анна Новикова', 599.00, 'completed'),
+        ('Павел Морозов', 1299.00, 'processing'),
+        ('Татьяна Федорова', 8999.99, 'completed'),
+        ('Николай Соколов', 29999.00, 'pending'),
+        ('Юлия Попова', 79999.99, 'completed'),
+        ('Андрей Васильев', 24999.00, 'processing'),
+        ('Наталья Павлова', 4999.00, 'completed'),
+        ('Владимир Семенов', 14999.00, 'pending'),
+        ('Ирина Григорьева', 89999.99, 'completed'),
+        ('Роман Орлов', 3499.50, 'processing'),
+        ('Екатерина Зайцева', 5999.00, 'completed'),
+        ('Максим Егоров', 24999.99, 'pending'),
+        ('Светлана Михайлова', 19999.00, 'completed');
+
+  db2-init.sql: |
+    -- from Практика 3/init-scripts/db2-init.sql
+    -- Инициализация БД 2
+    -- Создание пользователей
+
+    -- Пользователь 2: видит только свою БД (database2)
+    CREATE USER user2_local WITH PASSWORD 'user2pass';
+    GRANT CONNECT ON DATABASE database2 TO user2_local;
+    GRANT USAGE ON SCHEMA public TO user2_local;
+    GRANT CREATE ON SCHEMA public TO user2_local;
+
+    -- Пользователь 1: может видеть БД в соседнем контейнере (database1)
+    -- Этот пользователь создан также в db1, что позволяет ему подключаться к обеим БД
+    CREATE USER user1_cross WITH PASSWORD 'user1pass';
+    GRANT CONNECT ON DATABASE database2 TO user1_cross;
+    GRANT USAGE ON SCHEMA public TO user1_cross;
+    GRANT CREATE ON SCHEMA public TO user1_cross;
+
+    -- Создание таблиц
+    CREATE TABLE IF NOT EXISTS employees (
+        id SERIAL PRIMARY KEY,
+        first_name VARCHAR(50) NOT NULL,
+        last_name VARCHAR(50) NOT NULL,
+        position VARCHAR(100) NOT NULL,
+        salary DECIMAL(10, 2) NOT NULL,
+        hire_date DATE NOT NULL,
+        department VARCHAR(50) NOT NULL
+    );
+
+    CREATE TABLE IF NOT EXISTS departments (
+        id SERIAL PRIMARY KEY,
+        name VARCHAR(100) NOT NULL UNIQUE,
+        budget DECIMAL(12, 2) NOT NULL,
+        manager_id INTEGER,
+        location VARCHAR(100) NOT NULL,
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+    );
+
+    -- Выдача прав на таблицы для user2_local
+    GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO user2_local;
+    GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA public TO user2_local;
+
+    -- Выдача прав на таблицы для user1_cross
+    GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO user1_cross;
+    GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA public TO user1_cross;
+
+    -- Настройка прав по умолчанию для будущих таблиц
+    ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL ON TABLES TO user2_local;
+    ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL ON TABLES TO user1_cross;
+    ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL ON SEQUENCES TO user2_local;
+    ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL ON SEQUENCES TO user1_cross;
+
+  db2-data.sql: |
+    -- from Практика 3/init-scripts/db2-data.sql
+    -- Заполнение таблиц случайными данными для БД 2
+
+    -- Вставка случайных данных в таблицу departments
+    INSERT INTO departments (name, budget, location) VALUES
+        ('Отдел разработки', 5000000.00, 'Москва, офис 1'),
+        ('Отдел продаж', 3000000.00, 'Санкт-Петербург, офис 2'),
+        ('Отдел маркетинга', 2000000.00, 'Москва, офис 1'),
+        ('Отдел HR', 1500000.00, 'Новосибирск, офис 3'),
+        ('Отдел финансов', 4000000.00, 'Москва, офис 1'),
+        ('Отдел поддержки', 1800000.00, 'Екатеринбург, офис 4'),
+        ('Отдел тестирования', 2500000.00, 'Москва, офис 1'),
+        ('Отдел аналитики', 2200000.00, 'Казань, офис 5');
+
+    -- Вставка случайных данных в таблицу employees
+    INSERT INTO employees (first_name, last_name, position, salary, hire_date, department) VALUES
+        ('Александр', 'Иванов', 'Senior Developer', 150000.00, '2020-03-15', 'Отдел разработки'),
+        ('Елена', 'Петрова', 'Product Manager', 120000.00, '2019-06-20', 'Отдел разработки'),
+        ('Дмитрий', 'Сидоров', 'Sales Manager', 80000.00, '2021-01-10', 'Отдел продаж'),
+        ('Мария', 'Козлова', 'Marketing Specialist', 70000.00, '2021-08-05', 'Отдел маркетинга'),
+        ('Сергей', 'Смирнов', 'HR Manager', 90000.00, '2020-11-12', 'Отдел HR'),
+        ('Ольга', 'Волкова', 'Financial Analyst', 110000.00, '2019-09-18', 'Отдел финансов'),
+        ('Андрей', 'Лебедев', 'Support Engineer', 65000.00, '2022-02-22', 'Отдел поддержки'),
+        ('Татьяна', 'Новикова', 'QA Engineer', 75000.00, '2021-04-30', 'Отдел тестирования'),
+        ('Павел', 'Морозов', 'Data Analyst', 85000.00, '2020-07-14', 'Отдел аналитики'),
+        ('Юлия', 'Федорова', 'Junior Developer', 60000.00, '2022-05-08', 'Отдел разработки'),
+        ('Николай', 'Соколов', 'Senior Sales Manager', 95000.00, '2018-12-03', 'Отдел продаж'),
+        ('Анна', 'Попова', 'Marketing Manager', 100000.00, '2020-10-25', 'Отдел маркетинга'),
+        ('Владимир', 'Васильев', 'Lead Developer', 180000.00, '2017-05-11', 'Отдел разработки'),
+        ('Наталья', 'Павлова', 'Recruiter', 55000.00, '2021-11-19', 'Отдел HR'),
+        ('Роман', 'Семенов', 'CFO', 200000.00, '2016-08-07', 'Отдел финансов'),
+        ('Екатерина', 'Григорьева', 'Senior Support Engineer', 80000.00, '2019-03-28', 'Отдел поддержки'),
+        ('Максим', 'Орлов', 'Test Lead', 130000.00, '2018-09-15', 'Отдел тестирования'),
+        ('Светлана', 'Зайцева', 'Senior Data Analyst', 120000.00, '2019-12-01', 'Отдел аналитики'),
+        ('Игорь', 'Егоров', 'DevOps Engineer', 140000.00, '2020-04-16', 'Отдел разработки'),
+        ('Людмила', 'Михайлова', 'Sales Director', 160000.00, '2017-11-23', 'Отдел продаж');
+
+

cluster1/configmap-replication-scripts.yaml

@@ -0,0 +1,47 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: cluster1-replication-scripts
+  namespace: cluster1
+data:
+  entrypoint-replica.sh: |
+    #!/bin/sh
+    set +e  # Не останавливаться при ошибках в фоновых процессах
+
+    # Запускаем PostgreSQL в фоновом режиме
+    echo "Запуск PostgreSQL..."
+    docker-entrypoint.sh postgres &
+    POSTGRES_PID=$!
+
+    # Ждем запуска PostgreSQL
+    echo "Ожидание запуска PostgreSQL..."
+    sleep 15
+
+    # Проверяем, что PostgreSQL запущен
+    RETRY_COUNT=0
+    MAX_RETRIES=30
+    until PGPASSWORD=postgres123 psql -h localhost -U postgres -c '\q' 2>/dev/null; do
+      RETRY_COUNT=$((RETRY_COUNT + 1))
+      if [ $RETRY_COUNT -ge $MAX_RETRIES ]; then
+        echo "Ошибка: PostgreSQL не запустился за отведенное время"
+        exit 1
+      fi
+      echo "Ожидание PostgreSQL... ($RETRY_COUNT/$MAX_RETRIES)"
+      sleep 2
+    done
+
+    echo "PostgreSQL запущен!"
+
+    # Настраиваем репликацию
+    echo "Настройка репликации..."
+    /replication-scripts/setup-replica.sh
+
+    # Запускаем периодическую репликацию в фоне
+    echo "Запуск службы периодической репликации..."
+    /replication-scripts/replication-cron.sh &
+    REPLICATION_PID=$!
+
+    # Ждем завершения PostgreSQL (главный процесс)
+    wait $POSTGRES_PID
+
+

cluster1/namespace.yaml

@@ -0,0 +1,5 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: cluster1
+

cluster1/pvc-db.yaml

@@ -0,0 +1,37 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: db1-data
+  namespace: cluster1
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: db2-data
+  namespace: cluster1
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: replica-data
+  namespace: cluster1
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+
+

cluster1/secrets-db.yaml

@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: cluster1-postgres-secret
+  namespace: cluster1
+type: Opaque
+stringData:
+  POSTGRES_USER: postgres
+  POSTGRES_PASSWORD: postgres123
+  DB1_NAME: database1
+  DB2_NAME: database2
+
+

cluster1/statefulset-db1.yaml

@@ -0,0 +1,71 @@
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: db1
+  namespace: cluster1
+spec:
+  serviceName: db1
+  replicas: 1
+  selector:
+    matchLabels:
+      app: db1
+  template:
+    metadata:
+      labels:
+        app: db1
+    spec:
+      containers:
+        - name: postgres
+          image: postgres:15-alpine
+          ports:
+            - containerPort: 5432
+          env:
+            - name: POSTGRES_DB
+              valueFrom:
+                secretKeyRef:
+                  name: cluster1-postgres-secret
+                  key: DB1_NAME
+            - name: POSTGRES_USER
+              valueFrom:
+                secretKeyRef:
+                  name: cluster1-postgres-secret
+                  key: POSTGRES_USER
+            - name: POSTGRES_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: cluster1-postgres-secret
+                  key: POSTGRES_PASSWORD
+            - name: PGDATA
+              value: /var/lib/postgresql/data/pgdata
+          volumeMounts:
+            - name: db1-data
+              mountPath: /var/lib/postgresql/data
+            - name: init-scripts
+              mountPath: /docker-entrypoint-initdb.d/01-init.sql
+              subPath: db1-init.sql
+            - name: init-scripts
+              mountPath: /docker-entrypoint-initdb.d/02-data.sql
+              subPath: db1-data.sql
+      volumes:
+        - name: db1-data
+          persistentVolumeClaim:
+            claimName: db1-data
+        - name: init-scripts
+          configMap:
+            name: cluster1-init-scripts
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: db1
+  namespace: cluster1
+spec:
+  type: ClusterIP
+  selector:
+    app: db1
+  ports:
+    - name: postgres
+      port: 5432
+      targetPort: 5432
+
+

cluster1/statefulset-db2.yaml

@@ -0,0 +1,71 @@
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: db2
+  namespace: cluster1
+spec:
+  serviceName: db2
+  replicas: 1
+  selector:
+    matchLabels:
+      app: db2
+  template:
+    metadata:
+      labels:
+        app: db2
+    spec:
+      containers:
+        - name: postgres
+          image: postgres:15-alpine
+          ports:
+            - containerPort: 5432
+          env:
+            - name: POSTGRES_DB
+              valueFrom:
+                secretKeyRef:
+                  name: cluster1-postgres-secret
+                  key: DB2_NAME
+            - name: POSTGRES_USER
+              valueFrom:
+                secretKeyRef:
+                  name: cluster1-postgres-secret
+                  key: POSTGRES_USER
+            - name: POSTGRES_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: cluster1-postgres-secret
+                  key: POSTGRES_PASSWORD
+            - name: PGDATA
+              value: /var/lib/postgresql/data/pgdata
+          volumeMounts:
+            - name: db2-data
+              mountPath: /var/lib/postgresql/data
+            - name: init-scripts
+              mountPath: /docker-entrypoint-initdb.d/01-init.sql
+              subPath: db2-init.sql
+            - name: init-scripts
+              mountPath: /docker-entrypoint-initdb.d/02-data.sql
+              subPath: db2-data.sql
+      volumes:
+        - name: db2-data
+          persistentVolumeClaim:
+            claimName: db2-data
+        - name: init-scripts
+          configMap:
+            name: cluster1-init-scripts
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: db2
+  namespace: cluster1
+spec:
+  type: ClusterIP
+  selector:
+    app: db2
+  ports:
+    - name: postgres
+      port: 5432
+      targetPort: 5432
+
+

cluster1/statefulset-replica.yaml

@@ -0,0 +1,71 @@
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: replica
+  namespace: cluster1
+spec:
+  serviceName: replica
+  replicas: 1
+  selector:
+    matchLabels:
+      app: replica
+  template:
+    metadata:
+      labels:
+        app: replica
+    spec:
+      containers:
+        - name: postgres
+          image: postgres:15-alpine
+          ports:
+            - containerPort: 5432
+          env:
+            - name: POSTGRES_DB
+              value: replica_db
+            - name: POSTGRES_USER
+              valueFrom:
+                secretKeyRef:
+                  name: cluster1-postgres-secret
+                  key: POSTGRES_USER
+            - name: POSTGRES_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: cluster1-postgres-secret
+                  key: POSTGRES_PASSWORD
+            - name: PGDATA
+              value: /var/lib/postgresql/data/pgdata
+          command:
+            - /bin/sh
+            - -c
+            - |
+              chmod +x /replication-scripts/entrypoint-replica.sh
+              exec /replication-scripts/entrypoint-replica.sh
+          volumeMounts:
+            - name: replica-data
+              mountPath: /var/lib/postgresql/data
+            - name: replication-scripts
+              mountPath: /replication-scripts
+      volumes:
+        - name: replica-data
+          persistentVolumeClaim:
+            claimName: replica-data
+        - name: replication-scripts
+          configMap:
+            name: cluster1-replication-scripts
+            defaultMode: 0755
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: replica
+  namespace: cluster1
+spec:
+  type: ClusterIP
+  selector:
+    app: replica
+  ports:
+    - name: postgres
+      port: 5432
+      targetPort: 5432
+
+

cluster2/configmap-init-scripts.yaml

@@ -0,0 +1,58 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: cluster2-init-scripts
+  namespace: cluster2
+data:
+  mongo1-init.js: |
+    db = db.getSiblingDB('db1');
+
+    db.documents.insertMany([
+      { name: "Документ 1 бд 1", value: Math.random() * 100, timestamp: new Date() },
+      { name: "Документ 2 бд 1", value: Math.random() * 100, timestamp: new Date() }
+    ]);
+
+    db = db.getSiblingDB('admin');
+
+    db.createUser({
+      user: "user1",
+      pwd: "user1pass",
+      roles: [{ role: "readWrite", db: "db1" }]
+    });
+
+    db.createUser({
+      user: "user-shared", 
+      pwd: "user2pass",
+      roles: [
+        { role: "readWrite", db: "db1" },
+        { role: "readWrite", db: "db2" }
+      ]
+    });
+
+  mongo2-init.js: |
+    db = db.getSiblingDB('db2');
+
+    db.documents.insertMany([
+      { name: "Документ A бд 2", value: Math.random() * 100, timestamp: new Date() },
+      { name: "Документ B бд 2", value: Math.random() * 100, timestamp: new Date() }
+    ]);
+
+    db = db.getSiblingDB('admin');
+
+    db.createUser({
+      user: "user2",
+      pwd: "user1pass",
+      roles: [{ role: "readWrite", db: "db2" }]
+    });
+
+    db.createUser({
+      user: "user-shared",
+      pwd: "user2pass",
+      roles: [
+        { role: "readWrite", db: "db1" },
+        { role: "readWrite", db: "db2" }
+      ]
+    });
+
+
+

cluster2/deployment-mongo-rs.yaml

@@ -0,0 +1,171 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mongo-rs1
+  namespace: cluster2
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: mongo-rs1
+  template:
+    metadata:
+      labels:
+        app: mongo-rs1
+    spec:
+      containers:
+        - name: mongo
+          image: mongo:7
+          command: ["mongod", "--replSet", "rs0", "--bind_ip_all"]
+          ports:
+            - containerPort: 27017
+          volumeMounts:
+            - name: data
+              mountPath: /data/db
+      volumes:
+        - name: data
+          persistentVolumeClaim:
+            claimName: mongo-rs1-data
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: mongo-rs1
+  namespace: cluster2
+spec:
+  type: ClusterIP
+  selector:
+    app: mongo-rs1
+  ports:
+    - name: mongo
+      port: 27017
+      targetPort: 27017
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mongo-rs2
+  namespace: cluster2
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: mongo-rs2
+  template:
+    metadata:
+      labels:
+        app: mongo-rs2
+    spec:
+      containers:
+        - name: mongo
+          image: mongo:7
+          command: ["mongod", "--replSet", "rs0", "--bind_ip_all"]
+          ports:
+            - containerPort: 27017
+          volumeMounts:
+            - name: data
+              mountPath: /data/db
+      volumes:
+        - name: data
+          persistentVolumeClaim:
+            claimName: mongo-rs2-data
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: mongo-rs2
+  namespace: cluster2
+spec:
+  type: ClusterIP
+  selector:
+    app: mongo-rs2
+  ports:
+    - name: mongo
+      port: 27017
+      targetPort: 27017
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mongo-rs3
+  namespace: cluster2
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: mongo-rs3
+  template:
+    metadata:
+      labels:
+        app: mongo-rs3
+    spec:
+      containers:
+        - name: mongo
+          image: mongo:7
+          command: ["mongod", "--replSet", "rs0", "--bind_ip_all"]
+          ports:
+            - containerPort: 27017
+          volumeMounts:
+            - name: data
+              mountPath: /data/db
+      volumes:
+        - name: data
+          persistentVolumeClaim:
+            claimName: mongo-rs3-data
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: mongo-rs3
+  namespace: cluster2
+spec:
+  type: ClusterIP
+  selector:
+    app: mongo-rs3
+  ports:
+    - name: mongo
+      port: 27017
+      targetPort: 27017
+---
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: mongo-rs-init
+  namespace: cluster2
+spec:
+  template:
+    spec:
+      restartPolicy: OnFailure
+      containers:
+        - name: mongo-rs-init
+          image: mongo:7
+          command:
+            - bash
+            - -c
+            - |
+              echo "Waiting for MongoDB replica set members..."
+              sleep 30
+              until mongosh --host mongo-rs1:27017 --eval "db.adminCommand({ping:1})" --quiet; do
+                echo "Waiting for mongo-rs1..."
+                sleep 5
+              done
+              until mongosh --host mongo-rs2:27017 --eval "db.adminCommand({ping:1})" --quiet; do
+                echo "Waiting for mongo-rs2..."
+                sleep 5
+              done
+              until mongosh --host mongo-rs3:27017 --eval "db.adminCommand({ping:1})" --quiet; do
+                echo "Waiting for mongo-rs3..."
+                sleep 5
+              done
+              echo "All nodes ready, initializing replica set..."
+              mongosh --host mongo-rs1:27017 --eval 'rs.initiate({
+                _id: "rs0",
+                members: [
+                  { _id: 0, host: "mongo-rs1:27017" },
+                  { _id: 1, host: "mongo-rs2:27017" },
+                  { _id: 2, host: "mongo-rs3:27017" }
+                ]
+              })'
+
+
+

cluster2/deployment-mongo1.yaml

@@ -0,0 +1,61 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mongo1
+  namespace: cluster2
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: mongo1
+  template:
+    metadata:
+      labels:
+        app: mongo1
+    spec:
+      containers:
+        - name: mongo
+          image: mongo:7
+          ports:
+            - containerPort: 27017
+          env:
+            - name: MONGO_INITDB_ROOT_USERNAME
+              valueFrom:
+                secretKeyRef:
+                  name: cluster2-mongo-secret
+                  key: MONGO_INITDB_ROOT_USERNAME
+            - name: MONGO_INITDB_ROOT_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: cluster2-mongo-secret
+                  key: MONGO_INITDB_ROOT_PASSWORD
+          volumeMounts:
+            - name: data
+              mountPath: /data/db
+            - name: init-scripts
+              mountPath: /docker-entrypoint-initdb.d/init.js
+              subPath: mongo1-init.js
+      volumes:
+        - name: data
+          persistentVolumeClaim:
+            claimName: mongo1-data
+        - name: init-scripts
+          configMap:
+            name: cluster2-init-scripts
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: mongo1
+  namespace: cluster2
+spec:
+  type: ClusterIP
+  selector:
+    app: mongo1
+  ports:
+    - name: mongo
+      port: 27017
+      targetPort: 27017
+
+
+

cluster2/deployment-mongo2.yaml

@@ -0,0 +1,61 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mongo2
+  namespace: cluster2
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: mongo2
+  template:
+    metadata:
+      labels:
+        app: mongo2
+    spec:
+      containers:
+        - name: mongo
+          image: mongo:7
+          ports:
+            - containerPort: 27017
+          env:
+            - name: MONGO_INITDB_ROOT_USERNAME
+              valueFrom:
+                secretKeyRef:
+                  name: cluster2-mongo-secret
+                  key: MONGO_INITDB_ROOT_USERNAME
+            - name: MONGO_INITDB_ROOT_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: cluster2-mongo-secret
+                  key: MONGO_INITDB_ROOT_PASSWORD
+          volumeMounts:
+            - name: data
+              mountPath: /data/db
+            - name: init-scripts
+              mountPath: /docker-entrypoint-initdb.d/init.js
+              subPath: mongo2-init.js
+      volumes:
+        - name: data
+          persistentVolumeClaim:
+            claimName: mongo2-data
+        - name: init-scripts
+          configMap:
+            name: cluster2-init-scripts
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: mongo2
+  namespace: cluster2
+spec:
+  type: ClusterIP
+  selector:
+    app: mongo2
+  ports:
+    - name: mongo
+      port: 27017
+      targetPort: 27017
+
+
+

cluster2/namespace.yaml

@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: cluster2
+
+

cluster2/pvc-mongo.yaml

@@ -0,0 +1,62 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mongo1-data
+  namespace: cluster2
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mongo2-data
+  namespace: cluster2
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mongo-rs1-data
+  namespace: cluster2
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mongo-rs2-data
+  namespace: cluster2
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mongo-rs3-data
+  namespace: cluster2
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+
+
+

cluster2/secrets-mongo.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: cluster2-mongo-secret
+  namespace: cluster2
+type: Opaque
+stringData:
+  MONGO_INITDB_ROOT_USERNAME: admin
+  MONGO_INITDB_ROOT_PASSWORD: adminpass
+
+
+

elk-stack/configmap-elasticsearch.yaml

@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: elasticsearch-config
+  namespace: elk-stack
+data:
+  elasticsearch.yml: |
+    cluster.name: "elk-cluster"
+    network.host: 0.0.0.0
+    xpack.security.enabled: false
+    xpack.security.enrollment.enabled: false
+    xpack.security.http.ssl.enabled: false
+    xpack.security.transport.ssl.enabled: false
+    discovery.type: single-node
+
+

elk-stack/configmap-kibana.yaml

@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: kibana-config
+  namespace: elk-stack
+data:
+  kibana.yml: |
+    server.host: "0.0.0.0"
+    server.name: "kibana"
+    elasticsearch.hosts: ["http://elasticsearch:9200"]
+    xpack.security.enabled: false
+
+

elk-stack/configmap-logstash.yaml

@@ -0,0 +1,37 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: logstash-config
+  namespace: elk-stack
+data:
+  logstash.yml: |
+    http.host: "0.0.0.0"
+    xpack.monitoring.elasticsearch.hosts: ["http://elasticsearch:9200"]
+  pipeline.conf: |
+    input {
+      beats {
+        port => 5044
+      }
+      tcp {
+        port => 5000
+        codec => json
+      }
+    }
+
+    filter {
+      if [message] =~ /^\s*$/ {
+        drop { }
+      }
+    }
+
+    output {
+      elasticsearch {
+        hosts => ["http://elasticsearch:9200"]
+        index => "%{[source_type]}-%{+YYYY.MM.dd}"
+      }
+      stdout {
+        codec => rubydebug
+      }
+    }
+
+

elk-stack/deployment-kibana.yaml

@@ -0,0 +1,45 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: kibana
+  namespace: elk-stack
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: kibana
+  template:
+    metadata:
+      labels:
+        app: kibana
+    spec:
+      containers:
+        - name: kibana
+          image: docker.elastic.co/kibana/kibana:8.11.0
+          ports:
+            - containerPort: 5601
+          volumeMounts:
+            - name: kibana-config
+              mountPath: /usr/share/kibana/config/kibana.yml
+              subPath: kibana.yml
+      volumes:
+        - name: kibana-config
+          configMap:
+            name: kibana-config
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: kibana
+  namespace: elk-stack
+spec:
+  type: NodePort
+  selector:
+    app: kibana
+  ports:
+    - name: http
+      port: 5601
+      targetPort: 5601
+      nodePort: 30001
+
+

elk-stack/deployment-logstash.yaml

@@ -0,0 +1,61 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: logstash
+  namespace: elk-stack
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: logstash
+  template:
+    metadata:
+      labels:
+        app: logstash
+    spec:
+      containers:
+        - name: logstash
+          image: docker.elastic.co/logstash/logstash:8.11.0
+          ports:
+            - containerPort: 5044
+            - containerPort: 5000
+            - containerPort: 9600
+          env:
+            - name: LS_JAVA_OPTS
+              value: "-Xms256m -Xmx256m"
+          volumeMounts:
+            - name: logstash-config
+              mountPath: /usr/share/logstash/config/logstash.yml
+              subPath: logstash.yml
+            - name: logstash-pipeline
+              mountPath: /usr/share/logstash/pipeline/pipeline.conf
+              subPath: pipeline.conf
+      volumes:
+        - name: logstash-config
+          configMap:
+            name: logstash-config
+        - name: logstash-pipeline
+          configMap:
+            name: logstash-config
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: logstash
+  namespace: elk-stack
+spec:
+  type: ClusterIP
+  selector:
+    app: logstash
+  ports:
+    - name: beats
+      port: 5044
+      targetPort: 5044
+    - name: tcp
+      port: 5000
+      targetPort: 5000
+    - name: monitoring
+      port: 9600
+      targetPort: 9600
+
+

elk-stack/namespace.yaml

@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: elk-stack
+
+

elk-stack/pvc-elasticsearch.yaml

@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: elasticsearch-data
+  namespace: elk-stack
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 5Gi
+
+

elk-stack/statefulset-elasticsearch.yaml

@@ -0,0 +1,61 @@
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: elasticsearch
+  namespace: elk-stack
+spec:
+  serviceName: elasticsearch
+  replicas: 1
+  selector:
+    matchLabels:
+      app: elasticsearch
+  template:
+    metadata:
+      labels:
+        app: elasticsearch
+    spec:
+      containers:
+        - name: elasticsearch
+          image: docker.elastic.co/elasticsearch/elasticsearch:8.11.0
+          ports:
+            - containerPort: 9200
+            - containerPort: 9300
+          env:
+            - name: discovery.type
+              value: single-node
+            - name: xpack.security.enabled
+              value: "false"
+            - name: ES_JAVA_OPTS
+              value: "-Xms512m -Xmx512m"
+          volumeMounts:
+            - name: elasticsearch-data
+              mountPath: /usr/share/elasticsearch/data
+            - name: elasticsearch-config
+              mountPath: /usr/share/elasticsearch/config/elasticsearch.yml
+              subPath: elasticsearch.yml
+      volumes:
+        - name: elasticsearch-data
+          persistentVolumeClaim:
+            claimName: elasticsearch-data
+        - name: elasticsearch-config
+          configMap:
+            name: elasticsearch-config
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: elasticsearch
+  namespace: elk-stack
+spec:
+  type: ClusterIP
+  selector:
+    app: elasticsearch
+  ports:
+    - name: http
+      port: 9200
+      targetPort: 9200
+    - name: transport
+      port: 9300
+      targetPort: 9300
+
+

genearator-stack/configmap-generators.yaml

@@ -0,0 +1,10 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: generators-config
+  namespace: genearator-stack
+data:
+  GENERATE_INTERVAL: "5"
+  EXPORT_INTERVAL: "60"
+
+

genearator-stack/deployment-mongo-generator.yaml

@@ -0,0 +1,81 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mongo-generator
+  namespace: genearator-stack
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: mongo-generator
+  template:
+    metadata:
+      labels:
+        app: mongo-generator
+    spec:
+      containers:
+        - name: mongo-generator
+          image: vadzik/mongo-generator:latest
+          env:
+            - name: LOGSTASH_HOST
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: LOGSTASH_HOST
+            - name: LOGSTASH_PORT
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: LOGSTASH_PORT
+            - name: GENERATE_INTERVAL
+              valueFrom:
+                configMapKeyRef:
+                  name: generators-config
+                  key: GENERATE_INTERVAL
+            - name: EXPORT_INTERVAL
+              valueFrom:
+                configMapKeyRef:
+                  name: generators-config
+                  key: EXPORT_INTERVAL
+            - name: MONGO1_HOST
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: MONGO1_HOST
+            - name: MONGO1_PORT
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: MONGO1_PORT
+            - name: MONGO1_USER
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: MONGO1_USER
+            - name: MONGO1_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: MONGO1_PASSWORD
+            - name: MONGO2_HOST
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: MONGO2_HOST
+            - name: MONGO2_PORT
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: MONGO2_PORT
+            - name: MONGO2_USER
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: MONGO2_USER
+            - name: MONGO2_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: MONGO2_PASSWORD
+
+

genearator-stack/deployment-pg-generator.yaml

@@ -0,0 +1,91 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: pg-generator
+  namespace: genearator-stack
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: pg-generator
+  template:
+    metadata:
+      labels:
+        app: pg-generator
+    spec:
+      containers:
+        - name: pg-generator
+          image: vadzik/pg-generator:latest
+          env:
+            - name: LOGSTASH_HOST
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: LOGSTASH_HOST
+            - name: LOGSTASH_PORT
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: LOGSTASH_PORT
+            - name: GENERATE_INTERVAL
+              valueFrom:
+                configMapKeyRef:
+                  name: generators-config
+                  key: GENERATE_INTERVAL
+            - name: EXPORT_INTERVAL
+              valueFrom:
+                configMapKeyRef:
+                  name: generators-config
+                  key: EXPORT_INTERVAL
+            - name: DB1_HOST
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: DB1_HOST
+            - name: DB1_PORT
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: DB1_PORT
+            - name: DB1_NAME
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: DB1_NAME
+            - name: DB1_USER
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: DB1_USER
+            - name: DB1_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: DB1_PASSWORD
+            - name: DB2_HOST
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: DB2_HOST
+            - name: DB2_PORT
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: DB2_PORT
+            - name: DB2_NAME
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: DB2_NAME
+            - name: DB2_USER
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: DB2_USER
+            - name: DB2_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: generators-secret
+                  key: DB2_PASSWORD
+
+

genearator-stack/namespace.yaml

@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: genearator-stack
+
+

genearator-stack/secrets-generators.yaml

@@ -0,0 +1,29 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: generators-secret
+  namespace: genearator-stack
+type: Opaque
+stringData:
+  LOGSTASH_HOST: logstash.elk-stack.svc.cluster.local
+  LOGSTASH_PORT: "5000"
+  DB1_HOST: db1.cluster1.svc.cluster.local
+  DB1_PORT: "5432"
+  DB1_NAME: database1
+  DB1_USER: postgres
+  DB1_PASSWORD: postgres123
+  DB2_HOST: db2.cluster1.svc.cluster.local
+  DB2_PORT: "5432"
+  DB2_NAME: database2
+  DB2_USER: postgres
+  DB2_PASSWORD: postgres123
+  MONGO1_HOST: mongo1.cluster2.svc.cluster.local
+  MONGO1_PORT: "27017"
+  MONGO1_USER: admin
+  MONGO1_PASSWORD: adminpass
+  MONGO2_HOST: mongo2.cluster2.svc.cluster.local
+  MONGO2_PORT: "27017"
+  MONGO2_USER: admin
+  MONGO2_PASSWORD: adminpass
+
+