feat: add more services

src/cassandra/Makefile

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+HELM_RELEASE_NAME ?= cassandra
+HELM_APPLICATION_NAME ?= cassandra
+HELM_NAMESPACE ?= cassandra
+HELM_DIR ?= ./helm
+HELM_CHART_VERSION ?=
+HELM_VALUES_FILE ?= ./values.yaml
+HELM_OCI_REGISTRY ?=
+HELM_OCI_NAMESPACE ?=
+HELM_OCI_USERNAME ?=
+HELM_OCI_PASSWORD ?=
+HELM_REPO_NAME ?= k8ssandra
+HELM_REPO_URL ?= https://helm.k8ssandra.io/stable
+HELM_CHART_REPO ?= $(HELM_REPO_NAME)/k8ssandra-operator
+
+include ../_template/base.mk

src/cassandra/README.md

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+# Apache Cassandra (K8ssandra)
+
+## Introduction
+
+Apache Cassandra is an open-source distributed NoSQL database management system designed to handle large amounts of data across many commodity servers. This deployment uses K8ssandra Operator, which provides a Kubernetes-native way to manage Cassandra clusters.
+
+K8ssandra is a cloud-native distribution of Apache Cassandra that runs on Kubernetes. It includes automation for operational tasks such as repairs, backups, and monitoring.
+
+## Installation
+
+To install Cassandra, run:
+
+```bash
+make install
+```
+
+## Usage
+
+After installation, you can create a Cassandra cluster:
+
+```bash
+# Check if operator is running
+kubectl get pods -n cassandra
+
+# Create a Cassandra cluster
+kubectl apply -f - <<EOF
+apiVersion: k8ssandra.io/v1alpha1
+kind: K8ssandraCluster
+metadata:
+  name: demo
+  namespace: cassandra
+spec:
+  cassandra:
+    serverVersion: "4.0.1"
+    datacenters:
+      - metadata:
+          name: dc1
+        size: 3
+        storageConfig:
+          cassandraDataVolumeClaimSpec:
+            storageClassName: standard
+            accessModes: ["ReadWriteOnce"]
+            resources:
+              requests:
+                storage: 10Gi
+        config:
+          jvmOptions:
+            heapSize: 1Gi
+EOF
+```
+
+## Configuration
+
+The default configuration includes:
+
+- K8ssandra Operator for managing Cassandra clusters
+- Support for Cassandra 4.x
+- Medusa for backup management
+- Reaper for repair scheduling
+- Metrics collection via Prometheus
+
+## Features
+
+- **Automated Repairs**: Reaper handles repair scheduling
+- **Backup/Restore**: Medusa provides backup and restore capabilities
+- **Monitoring**: Integrated Prometheus metrics
+- **Multi-DC Support**: Deploy across multiple data centers
+
+## Connecting to Cassandra
+
+```bash
+# Get CQLSH access
+kubectl exec -it demo-dc1-default-sts-0 -n cassandra -c cassandra -- cqlsh
+```
+
+## Uninstall
+
+To uninstall:
+
+```bash
+make uninstall
+```

src/cassandra/README.zh.md

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+# Apache Cassandra (K8ssandra)
+
+## 简介
+
+Apache Cassandra 是一个开源的分布式 NoSQL 数据库管理系统，设计用于在大量商用服务器上处理大量数据。此部署使用 K8ssandra Operator，它提供了一种 Kubernetes 原生的方式来管理 Cassandra 集群。
+
+K8ssandra 是 Apache Cassandra 的云原生发行版，可在 Kubernetes 上运行。它包括修复、备份和监控等运维任务的自动化。
+
+## 安装
+
+安装 Cassandra：
+
+```bash
+make install
+```
+
+## 使用
+
+安装完成后，您可以创建 Cassandra 集群：
+
+```bash
+# 检查 operator 是否运行
+kubectl get pods -n cassandra
+
+# 创建 Cassandra 集群
+kubectl apply -f - <<EOF
+apiVersion: k8ssandra.io/v1alpha1
+kind: K8ssandraCluster
+metadata:
+  name: demo
+  namespace: cassandra
+spec:
+  cassandra:
+    serverVersion: "4.0.1"
+    datacenters:
+      - metadata:
+          name: dc1
+        size: 3
+        storageConfig:
+          cassandraDataVolumeClaimSpec:
+            storageClassName: standard
+            accessModes: ["ReadWriteOnce"]
+            resources:
+              requests:
+                storage: 10Gi
+        config:
+          jvmOptions:
+            heapSize: 1Gi
+EOF
+```
+
+## 配置
+
+默认配置包括：
+
+- 用于管理 Cassandra 集群的 K8ssandra Operator
+- 支持 Cassandra 4.x
+- Medusa 用于备份管理
+- Reaper 用于修复调度
+- 通过 Prometheus 收集指标
+
+## 功能
+
+- **自动修复**: Reaper 处理修复调度
+- **备份/恢复**: Medusa 提供备份和恢复功能
+- **监控**: 集成的 Prometheus 指标
+- **多 DC 支持**: 跨多个数据中心部署
+
+## 连接 Cassandra
+
+```bash
+# 获取 CQLSH 访问
+kubectl exec -it demo-dc1-default-sts-0 -n cassandra -c cassandra -- cqlsh
+```
+
+## 卸载
+
+卸载：
+
+```bash
+make uninstall
+```

src/cassandra/values.yaml

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+# K8ssandra Operator Configuration
+# https://github.com/k8ssandra/k8ssandra-operator
+
+# Operator configuration
+replicaCount: 1
+
+resources:
+  requests:
+    cpu: 100m
+    memory: 256Mi
+  limits:
+    cpu: 500m
+    memory: 512Mi
+
+# Medusa backup configuration
+medusa:
+  enabled: false
+
+# Prometheus monitoring
+monitoring:
+  enabled: false
+
+# Cluster-wide configuration
+clusterScoped: false
+
+# Webhook configuration
+webhook:
+  enabled: false