Feat: add sharded mongodb

catalog/mongodb/README.md

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+### 1. 简介
+MongoDB 是一种文档数据库，它所具备的可扩展性和灵活性可以满足您对查询和索引的需求
+
+### 2. 产品特性
+
+#### 文档存储
+用类似 JSON 的格式存储数据，灵活多变，适合各种数据结构。
+
+#### 高性能
+读写速度快，支持嵌套文档和数组，减少连接操作，查询更快。
+
+#### 高可用
+通过副本集自动复制数据，一台服务器出问题，其他服务器可以接管，保证不停机。
+
+#### 可扩展
+通过分片技术，数据分布在多台机器上，轻松应对数据增长和流量增加。
+
+#### 强大查询
+提供丰富的查询语言，支持各种复杂查询和实时数据分析。

catalog/mongodb/apps/mongodb.app/README.md

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+### 1. 简介
+
+MongoDB 是一种文档数据库，它所具备的可扩展性和灵活性可以满足您对查询和索引的需求
+
+### 基本概念
+
+1. 文档（Document）
+- MongoDB 存储数据的基本单位，类似于 JSON 对象，包含键值对。
+
+2. 集合（Collection）
+- 文档的容器，类似于关系数据库中的表。
+
+3. 数据库（Database）
+- 集合的物理容器，一个 MongoDB 服务器可以包含多个数据库。
+
+4. 字段（Field）
+- 文档中的键值对，用于存储具体的数据。
+
+5. 索引（Index）
+- 用于提高查询性能，支持多种类型的索引。
+
+6. 查询（Query）
+- 用于从 MongoDB 中检索数据的指令，支持丰富的查询语言。
+
+7. 聚合（Aggregation）
+- 用于处理数据记录并返回计算结果，提供聚合管道和 map-reduce 两种聚合框架。
+
+8. 副本集（Replica Set）
+- 一组 MongoDB 服务器，维护相同的数据副本，提供冗余和高可用性。
+
+9. 分片（Sharding）
+- 将数据分布在多个服务器上的过程，用于处理大量数据和高吞吐量的应用。
+
+
+### 2. 快速开始
+
+
+#### 使用 Python
+```python
+# Connect to MongoDB server
+mongosh "mongodb://localhost:27017" -u "root" -p "root.password" 
+
+# show databases
+show dbs
+
+# Select database
+use mydatabase
+
+# Create (Insert)
+db.mycollection.insertOne({
+    "name": "Alice",
+    "age": 30,
+    "email": "[email protected]"
+})
+
+# Read (Find)
+db.mycollection.find()
+
+# Update
+db.mycollection.updateOne(
+    { "name": "Alice" },
+    { $set: { "age": 31 } }
+)
+
+# Delete
+db.mycollection.deleteOne({ "name": "Alice" })
+
+# Drop collection
+db.mycollection.drop()
+
+# Drop database
+db.dropDatabase()
+
+```
+
+#### 使用命令行
+进入MongoDB Pod 容器
+
+```bash
+# Connect to MongoDB server
+mongosh "mongodb://localhost:27017" -u "root" -p "root.password" 
+
+# show databases
+show dbs
+
+# Select database
+use mydatabase
+
+# Create (Insert)
+db.mycollection.insertOne({
+    "name": "Alice",
+    "age": 30,
+    "email": "[email protected]"
+})
+
+# Read (Find)
+db.mycollection.find()
+
+# Update
+db.mycollection.updateOne(
+    { "name": "Alice" },
+    { $set: { "age": 31 } }
+)
+
+# Delete
+db.mycollection.deleteOne({ "name": "Alice" })
+
+# Drop collection
+db.mycollection.drop()
+
+# Drop database
+db.dropDatabase()
+
+```
+
+
+### 3. FAQ
+
+1. 如何减少 Shard 的数量？
+请参考 https://www.mongodb.com/docs/manual/tutorial/remove-shards-from-cluster/
+由于 shard 是 k8s satefulset 负载， 因此需要移除序号最大的 shard ， 如 mongodb-sharded-shard-<max-number> 
+然后在KDP调整 shard 数量
+
+2. 生产环境中， 如何配置组件数量？
+https://www.mongodb.com/docs/manual/core/sharded-cluster-components/#production-configuration
+
+
+
+https://www.mongodb.com/docs/manual/faq/
+
+

catalog/mongodb/apps/mongodb.app/app.yaml

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+apiVersion: bdc.kdp.io/v1alpha1
+kind: Application
+metadata:
+  annotations:
+    app.core.bdos/catalog: mongodb
+  labels:
+    app: mongodb
+    app.core.bdos/type: system
+spec:
+  name: mongodb
+  type: mongodb
+  properties:
+    shards: 1

catalog/mongodb/apps/mongodb.app/i18n/en/README.md

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+### 1. Introduction
+MongoDB is a document database with the scalability and flexibility that you want with the querying and indexing that you need.
+
+### Basic Concepts
+
+1. Document
+- The fundamental unit of data storage in MongoDB, similar to a JSON object, consisting of key-value pairs.
+
+1. Collection
+- A container for documents, analogous to a table in relational databases.
+
+1. Database
+- A physical container for collections, with a MongoDB server capable of hosting multiple databases.
+
+1. Field
+- A key-value pair within a document, used to store specific data.
+
+1. Index
+- Used to enhance query performance, supporting various types of indexes.
+
+1. Query
+- Instructions for retrieving data from MongoDB, featuring a rich query language.
+
+1. Aggregation
+- Operations for processing data records and returning computed results, offering both aggregation pipelines and map-reduce frameworks.
+
+1. Replica Set
+- A group of MongoDB servers that maintain identical data copies, providing redundancy and high availability.
+
+1. Sharding
+- The process of distributing data across multiple servers, designed to handle large volumes of data and high throughput applications.
+
+### 2. Quick Start
+
+#### Using Python
+```python
+# Connect to MongoDB server
+mongosh "mongodb://localhost:27017" -u "root" -p "root.password" 
+
+# show databases
+show dbs
+
+# Select database
+use mydatabase
+
+# Create (Insert)
+db.mycollection.insertOne({
+    "name": "Alice",
+    "age": 30,
+    "email": "[email protected]"
+})
+
+# Read (Find)
+db.mycollection.find()
+
+# Update
+db.mycollection.updateOne(
+    { "name": "Alice" },
+    { $set: { "age": 31 } }
+)
+
+# Delete
+db.mycollection.deleteOne({ "name": "Alice" })
+
+# Drop collection
+db.mycollection.drop()
+
+# Drop database
+db.dropDatabase()
+
+```
+
+#### Using Command Line
+Execute the following commands in the MongoDB Pod:
+
+```bash
+# Connect to MongoDB server
+mongosh "mongodb://localhost:27017" -u "root" -p "root.password" 
+
+# show databases
+show dbs
+
+# Select database
+use mydatabase
+
+# Create (Insert)
+db.mycollection.insertOne({
+    "name": "Alice",
+    "age": 30,
+    "email": "[email protected]"
+})
+
+# Read (Find)
+db.mycollection.find()
+
+# Update
+db.mycollection.updateOne(
+    { "name": "Alice" },
+    { $set: { "age": 31 } }
+)
+
+# Delete
+db.mycollection.deleteOne({ "name": "Alice" })
+
+# Drop collection
+db.mycollection.drop()
+
+# Drop database
+db.dropDatabase()
+
+```
+
+
+### 3. FAQ
+
+1. **How to Reduce the Number of Shards?**
+   - Refer to the official MongoDB documentation on [removing shards from a cluster](https://www.mongodb.com/docs/manual/tutorial/remove-shards-from-cluster/).
+   - Since shards are Kubernetes StatefulSet workloads, you need to remove the shard with the highest number, such as `mongodb-sharded-shard-<max-number>`.
+   - Then adjust the number of shards in KDP (Kubernetes Deployment Platform).
+
+2. **How to Configure Component Numbers in a Production Environment?**
+   - Consult the MongoDB documentation on [production configuration for sharded cluster components](https://www.mongodb.com/docs/manual/core/sharded-cluster-components/#production-configuration).
+
+Additional FAQs can be found at the [MongoDB FAQ](https://www.mongodb.com/docs/manual/faq/).

catalog/mongodb/apps/mongodb.app/metadata.yaml

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+version: 7.0.12
+alias: MongoDB
+description: MongoDB 是一种文档数据库，它所具备的可扩展性和灵活性可以满足您对查询和索引的需求
+isGlobal: false
+i18n:
+  en:
+    description: >-
+      MongoDB is a document database with the scalability and flexibility that you want with the querying and indexing that you need.
+dashboard:
+  - id: mongodb
+    name: MongoDB 监控面板
+    i18n:
+      en: MongoDB Dashboard

catalog/mongodb/i18n/en/README.md

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+### 1. Introduction
+MongoDB is a document database with the scalability and flexibility that you want with the querying and indexing that you need.
+
+### 2. Product Features
+
+#### Document Storage
+Stores data in a JSON-like format, offering flexibility and adaptability for various data structures.
+
+#### High Performance
+Fast read and write speeds, supports nested documents and arrays, reducing join operations and speeding up queries.
+
+#### High Availability
+Automatically replicates data through replica sets; if one server fails, others can take over, ensuring continuous operation without downtime.
+
+#### Scalability
+Distributes data across multiple machines using sharding technology, easily handling data growth and increased traffic.
+
+#### Powerful Querying
+Offers a rich query language, supporting various complex queries and real-time data analysis.

catalog/mongodb/metadata.yaml

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+name: MongoDB
+category: 系统/存储系统
+description: MongoDB 是一种文档数据库，它所具备的可扩展性和灵活性可以满足您对查询和索引的需求
+i18n:
+  en:
+    category: system.storage
+    description: >-
+      MongoDB is a document database with the scalability and flexibility that you want with the querying and indexing that you need.