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[Modify/Add] Add EC2 Notes

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Kanani Nirav
2024-10-09 22:00:14 +09:00
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sections/cloud_computing.md
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@@ -34,12 +34,12 @@ Cloud computing is the on-demand delivery of compute power, database storage, ap
### The Deployment Models of the Cloud
| **Private Cloud** | **Public Cloud** | **Hybrid Cloud** |
|----------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------|
| Cloud services used by a single organization, not exposed to the public. | Cloud resources owned and operated by a third-party cloud service provider, delivered over the Internet. | Keep some servers on-premises and extend some capabilities to the cloud. |
| Complete control over data, security, and compliance. | Cost-effective as infrastructure is shared among multiple users. | Allows data and applications to be shared between private and public clouds. |
| Security for sensitive applications, ideal for critical workloads. | Suitable for less sensitive workloads that require high scalability and availability. | Offers flexibility, security, and scalability for different use cases. |
| Meet specific business needs and compliance requirements. | No maintenance required as the cloud provider manages the infrastructure. | Provides business continuity, disaster recovery, and data backup solutions. |
| **Private Cloud** | **Public Cloud** | **Hybrid Cloud** |
| ------------------------------------------------------------------------ | -------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------- |
| Cloud services used by a single organization, not exposed to the public. | Cloud resources owned and operated by a third-party cloud service provider, delivered over the Internet. | Keep some servers on-premises and extend some capabilities to the cloud. |
| Complete control over data, security, and compliance. | Cost-effective as infrastructure is shared among multiple users. | Allows data and applications to be shared between private and public clouds. |
| Security for sensitive applications, ideal for critical workloads. | Suitable for less sensitive workloads that require high scalability and availability. | Offers flexibility, security, and scalability for different use cases. |
| Meet specific business needs and compliance requirements. | No maintenance required as the cloud provider manages the infrastructure. | Provides business continuity, disaster recovery, and data backup solutions. |
### The Five Characteristics of Cloud Computing
@@ -66,11 +66,11 @@ Cloud computing is the on-demand delivery of compute power, database storage, ap
### Types of Cloud Computing
| **Infrastructure as a Service (IaaS)** | **Platform as a Service (PaaS)** | **Software as a Service (SaaS)** |
|-------------------------------------------------------------------------------------|--------------------------------------------------------------------------------|------------------------------------------------------------------------|
| Provides virtualized computing resources over the internet (e.g., AWS EC2). | Provides a platform allowing customers to develop, run, and manage applications (e.g., AWS Elastic Beanstalk). | Provides software applications over the internet on a subscription basis (e.g., AWS Chime). |
| Offers maximum control over the infrastructure. | Focus on deploying applications without managing underlying infrastructure. | Accessible over the internet, usually via a web browser. |
| Suitable for developers needing control over OS, middleware, and runtime. | Ideal for developers who want to focus on application development. | Suitable for users needing access to software without infrastructure management. |
| **Infrastructure as a Service (IaaS)** | **Platform as a Service (PaaS)** | **Software as a Service (SaaS)** |
| --------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------- |
| Provides virtualized computing resources over the internet (e.g., AWS EC2). | Provides a platform allowing customers to develop, run, and manage applications (e.g., AWS Elastic Beanstalk). | Provides software applications over the internet on a subscription basis (e.g., AWS Chime). |
| Offers maximum control over the infrastructure. | Focus on deploying applications without managing underlying infrastructure. | Accessible over the internet, usually via a web browser. |
| Suitable for developers needing control over OS, middleware, and runtime. | Ideal for developers who want to focus on application development. | Suitable for users needing access to software without infrastructure management. |
### Example of Cloud Computing Types
@@ -85,10 +85,10 @@ Cloud computing is the on-demand delivery of compute power, database storage, ap
AWS follows three fundamental pricing principles based on the pay-as-you-go pricing model:
| **Fundamental** | **Description** |
|---------------------|-------------------------------------------------------------------------------------------------|
| **Compute** | Pay for the compute time you consume. Examples include EC2 instance hours or Lambda invocation duration. |
| **Storage** | Pay for the amount of data stored in the cloud. Examples include S3 storage space and EBS volume usage. |
| **Fundamental** | **Description** |
| --------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Compute** | Pay for the compute time you consume. Examples include EC2 instance hours or Lambda invocation duration. |
| **Storage** | Pay for the amount of data stored in the cloud. Examples include S3 storage space and EBS volume usage. |
| **Data Transfer OUT** | Pay for data transfer out of the cloud. Data transfer IN is free. This pricing structure solves the issue of expensive data transfer fees in traditional IT systems. |
### How Cloud Pricing Solves Traditional IT Cost Issues
@@ -160,11 +160,11 @@ AWS follows three fundamental pricing principles based on the pay-as-you-go pric
### Example Responsibilities for Different AWS Services
| **Service Type** | **AWS Responsibility** | **Customer Responsibility** |
|--------------------------|----------------------------------------------------------|---------------------------------------------------------------------|
| **IaaS (e.g., EC2)** | Securing physical infrastructure, hypervisor, and network. | Configure and secure OS, patch management, data, and network settings. |
| **PaaS (e.g., RDS)** | Managing the database engine, backups, and patching. | Secure data at rest and in transit, manage DB access, and IAM roles. |
| **SaaS (e.g., S3)** | Protecting the service's underlying infrastructure. | Manage permissions, bucket policies, and data lifecycle rules. |
| **Service Type** | **AWS Responsibility** | **Customer Responsibility** |
| -------------------- | ---------------------------------------------------------- | ---------------------------------------------------------------------- |
| **IaaS (e.g., EC2)** | Securing physical infrastructure, hypervisor, and network. | Configure and secure OS, patch management, data, and network settings. |
| **PaaS (e.g., RDS)** | Managing the database engine, backups, and patching. | Secure data at rest and in transit, manage DB access, and IAM roles. |
| **SaaS (e.g., S3)** | Protecting the service's underlying infrastructure. | Manage permissions, bucket policies, and data lifecycle rules. |
### Summary