Cloud_Cheat_sheet.pdf

PRIME CODING PRIME CODING PRIME CODING Cloud Cheat sheet Introduction to Cloud Computing Definition: Cloud computing delivers computing services over the internet,...

PRIME CODING PRIME CODING PRIME CODING Cloud Cheat sheet Introduction to Cloud Computing Definition: Cloud computing delivers computing services over the internet, including storage, servers, databases, networking, software, and analytics. Key Characteristics: G On-Demand Self-Service: Users can access computing resources as needed without human interaction with service providers. IN Broad Network Access: Resources are accessible over the network via standard mechanisms, promoting use on various platforms (e.g., mobile phones, laptops). D Resource Pooling: The provider's resources are pooled to serve O multiple customers, with resources dynamically assigned according to demand. C Rapid Elasticity: Resources can be quickly scaled up or down according to demand. E Measured Service: Cloud systems automatically control and optimize resource use by leveraging a metering capability. IM Types of Cloud Computing: Public Cloud: Services are provided over a network that is open for PR public use. (e.g., AWS, Azure) Private Cloud: Services are maintained on a private network. Hybrid Cloud: Combines public and private clouds, allowing data and applications to be shared between them. Cloud Service Models 1. Infrastructure as a Service (IaaS): Provides virtualized computing resources over the internet. Cloud Cheat sheet PRIME CODING PRIME CODING 1  PRIME CODING PRIME CODING PRIME CODING Example: Amazon EC2 (Elastic Compute Cloud) provides scalable computing capacity. Use Case: Hosting websites, big data analysis, storage and backup, and high-performance computing. 2. Platform as a Service (PaaS): Provides a platform allowing customers to develop, run, and manage applications without the complexity of building and maintaining the infrastructure. Example: Google App Engine offers a platform for developing and G hosting web applications. IN Use Case: Application development, web application hosting, and API development. 3. Software as a Service (SaaS): D Delivers software applications over the internet, on a subscription basis. O Example: Microsoft Office 365 provides productivity software through the cloud. C Use Case: Email services, CRM, ERP, and collaboration tools. E Cloud Deployment Models IM Public Cloud: Operated by third-party cloud service providers; services are delivered over the internet. PR Examples: AWS, Google Cloud Platform (GCP), Microsoft Azure. Private Cloud: Cloud infrastructure operated solely for a single organization. It can be managed internally or by a third party. Example: An organization’s own datacenter providing virtualized resources. Hybrid Cloud: Cloud Cheat sheet PRIME CODING PRIME CODING 2  PRIME CODING PRIME CODING PRIME CODING A combination of public and private clouds that allows data and applications to be shared. Example: An organization using on-premises resources for sensitive operations while leveraging the public cloud for less critical tasks. Community Cloud: Shared infrastructure for a specific community, typically from the same industry. Example: Government agencies sharing a cloud for data management. G Key Cloud Providers IN Amazon Web Services (AWS): Services: EC2 (Compute), S3 (Storage), RDS (Database), Lambda (Serverless). D O Example: Netflix uses AWS for global content delivery. Microsoft Azure: C Services: Virtual Machines, Azure Blob Storage, SQL Database, Azure Functions. E Example: LinkedIn uses Azure to improve its services’ performance and scalability. IM Google Cloud Platform (GCP): Services: Compute Engine, Cloud Storage, BigQuery, Cloud Functions. PR Example: Snapchat uses GCP to handle its cloud operations. Cloud Security Security Challenges: Data Breaches: Unauthorized access to data. Data Loss: Data could be lost due to factors like hardware failure, natural disasters, or human error. Cloud Cheat sheet PRIME CODING PRIME CODING 3  PRIME CODING PRIME CODING PRIME CODING Account Hijacking: Malicious actors may gain unauthorized access to accounts. Insecure APIs: Vulnerabilities in cloud APIs can expose systems to attacks. Security Solutions: Encryption: Encrypting data both at rest and in transit. Identity and Access Management (IAM): Controlling who can access what resources. G Multi-Factor Authentication (MFA): Adding an extra layer of security beyond just passwords. IN Regular Audits: Performing regular security audits to ensure compliance with security policies. D Example: AWS provides tools like AWS Identity and Access Management (IAM) and AWS Key Management Service (KMS) for enhanced security. O Cloud Storage C Types of Cloud Storage: Object Storage: Stores data as objects. (e.g., AWS S3, Azure Blob E Storage) IM File Storage: Provides shared file systems. (e.g., Google Cloud Filestore) Block Storage: Stores data in blocks, typically used for databases. PR (e.g., AWS EBS, Azure Disk Storage) Use Cases: Object Storage: Backup and restore, media storage, big data analytics. File Storage: File sharing, content management. Block Storage: Database storage, transactional applications. Example: Dropbox uses Amazon S3 to store and manage its vast amount of user data. Cloud Cheat sheet PRIME CODING PRIME CODING 4  PRIME CODING PRIME CODING PRIME CODING Cloud Networking Virtual Private Cloud (VPC): Allows you to create an isolated network within a public cloud. Example: AWS VPC provides control over the network configuration, including IP address ranges and subnets. Load Balancers: Distribute incoming application traffic across multiple instances. Example: AWS Elastic Load Balancing automatically distributes G incoming application traffic. Content Delivery Networks (CDN): IN Distributes content to users globally with minimal latency. Example: Amazon CloudFront, a CDN service, delivers content with low latency. D O Firewalls: Protects cloud resources by controlling incoming and outgoing traffic C based on security rules. Example: Azure Firewall provides network security to protect cloud workloads. E IM Cloud Cost Management Cost Optimization Techniques: PR Right-Sizing: Adjusting resource sizes according to workload requirements. Reserved Instances: Committing to use a service for a longer term at a lower cost. Auto-Scaling: Automatically scaling resources up or down based on demand. Tools: AWS Cost Explorer: Visualizes and manages your AWS costs and usage. Cloud Cheat sheet PRIME CODING PRIME CODING 5  PRIME CODING PRIME CODING PRIME CODING Azure Cost Management and Billing: Helps monitor and control Azure expenditures. GCP Cost Management Tools: Provides insights into GCP spending and helps optimize resources. Example: A company using AWS might reserve instances for predictable workloads and use auto-scaling for unpredictable demand. Cloud Migration G Steps for Cloud Migration: Assessment: Evaluate current infrastructure and applications. IN Planning: Define the migration strategy (e.g., rehosting, replatforming, refactoring). D Execution: Migrate data and applications. O Optimization: Post-migration, optimize cloud resources for performance and cost. C Migration Strategies: Rehosting: “Lift and shift” existing applications to the cloud without changes. E Replatforming: Making a few optimizations without changing the core IM architecture. Refactoring: Rewriting applications to take full advantage of cloud- native features. PR Example: Netflix migrated to AWS to improve scalability and global availability. Cloud Computing Best Practices Security Best Practices: Regularly update and patch systems. Use IAM roles instead of root accounts. Cloud Cheat sheet PRIME CODING PRIME CODING 6  PRIME CODING PRIME CODING PRIME CODING Implement network segmentation. Operational Best Practices: Implement monitoring and logging. Automate where possible (e.g., using Infrastructure as Code). Regularly review cloud architecture for optimization. Cost Management Best Practices: Monitor usage and set budget alerts. G Use cost-effective storage classes. Implement reserved instances and spot instances. IN Example: A financial services company could implement these best practices by using AWS CloudTrail for logging, setting up cost alerts in AWS Budgets, and using reserved instances for steady workloads. D O Real-Life Cloud Computing Situations C 1. A startup is developing a mobile app with fluctuating demand. Solution: Use Public Cloud IaaS for scalable compute resources to handle spikes in traffic. E 2. A healthcare organization needs to securely store and process sensitive IM patient data. Solution: Implement a Private Cloud to ensure data security and compliance with regulatory standards. PR 3. An e-commerce platform experiences high traffic during sales events. Solution: Leverage Hybrid Cloud to scale resources in the public cloud during peak times while keeping critical operations on a private cloud. 4. A company wants to deploy a new web application quickly without managing the underlying infrastructure. Solution: Choose PaaS to streamline application development and deployment. 5. A business needs to provide global access to its content with minimal latency. Cloud Cheat sheet PRIME CODING PRIME CODING 7  PRIME CODING PRIME CODING PRIME CODING Solution: Utilize a Content Delivery Network (CDN) within a public cloud to distribute content efficiently. 6. A research institution needs high-performance computing for complex simulations. Solution: Use IaaS in the public cloud to access powerful compute instances on-demand. 7. A company is moving legacy applications to the cloud but wants to maintain control over the infrastructure. Solution: Opt for Rehosting by using IaaS in a Public Cloud to lift and G shift applications without modification. IN 8. An organization needs to provide temporary resources for a project with a limited duration. Solution: Utilize Spot Instances in the public cloud to reduce costs while maintaining flexibility. D 9. A development team requires a collaborative environment to develop and O test applications. C Solution: Implement PaaS to provide an integrated environment for coding, testing, and deploying applications. 10. A financial services firm needs to perform big data analysis on large E datasets. IM Solution: Use Big Data Processing Services in the public cloud to efficiently analyze and process vast amounts of data. 11. You need to host a scalable web application and handle variable PR workloads without managing the underlying infrastructure. Service Model: Platform as a Service (PaaS) 12. Scenario: You require complete control over the virtual machines and storage resources for a custom application. Service Model: Infrastructure as a Service (IaaS) 13. Scenario: You want to use software applications such as email and collaboration tools without worrying about maintenance or updates. Service Model: Software as a Service (SaaS) Cloud Cheat sheet PRIME CODING PRIME CODING 8  PRIME CODING PRIME CODING PRIME CODING 14. Scenario: You need to develop and test applications with an environment that supports continuous integration and delivery (CI/CD). Service Model: Platform as a Service (PaaS) 15. Scenario: Your team needs to access the latest version of productivity software from any device without managing software installation. Service Model: Software as a Service (SaaS) G IN D O C E IM PR Cloud Cheat sheet PRIME CODING PRIME CODING 9