Implementing Cloud-native apps on OCI
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The document provides a comprehensive overview of implementing cloud-native applications using Oracle Cloud Infrastructure (OCI), emphasizing the benefits of cloud-native design, such as scalability, resilience, and efficient innovation practices. It discusses essential components like API design, automated delivery pipelines, and various OCI services like Kubernetes, API gateways, and monitoring tools. Key takeaways highlight the importance of adopting open standards and a devops mindset to enhance application performance and manage multi-cloud environments effectively.
Implementing Cloud-native apps on OCI
- 1. © OPITZ CONSULTING 2021 / Öffentlich Implementing Cloud-native Apps on OCI 1 Cologne, 2021-12-09 Sven Bernhardt IMPLEMENTING CLOUD-NATIVE APPS ON OCI
- 2. © OPITZ CONSULTING 2021 / Öffentlich THAT‘S ME Implementing Cloud-native Apps on OCI 2 Sven Bernhardt Cloud-Native enthusiast, API & integration geek. Always curious how new technologies and concepts can help to make things more valuable and efficient. ¢ Chief Architect / Integration Evangelist@OPITZ CONSULTING Deutschland GmbH ¢ Oracle ACE Director @sbernhardt https://svenbernhardt.wordpress.com/
- 3. © OPITZ CONSULTING 2021 / Öffentlich Implementing Cloud-native Apps on OCI 3 WHY CLOUD-NATIVE? https://opitzcloud.canto.global/b/S97PB
- 4. © OPITZ CONSULTING 2021 / Öffentlich MAIN CHALLENGE: ENSURE THE ABILITY TO INNOVATE Implementing Cloud-native Apps on OCI 4 Source: https://konghq.com/resources/digital-innovation-benchmark-2021/
- 5. © OPITZ CONSULTING 2021 / Öffentlich CLOUD-NATIVE APPS Implementing Cloud-native Apps on OCI 5 ¢ Designed for change with the following characteristics: ¢ Loose coupling ¢ Resilient and fault tolerant ¢ Scalable ¢ Manageable ¢ Observable ¢ Adhere to the 12-factor app methodology ¢ CNCF Cloud-native definition states: Cloud-native Microservices CI / CD DevOps Containers … loosely coupled systems that are resilient, manageable, and observable. Combined with robust automation, they allow engineers to make high-impact changes frequently and predictably with minimal toil.
- 6. © OPITZ CONSULTING 2021 / Öffentlich CLOUD-NATIVE IS NOT JUST ABOUT CLOUD, IT’S ABOUT… Implementing Cloud-native Apps on OCI 6 ¢ Designing apps to run in scalable, dynamic environments ¢ On-premises ¢ Public or private Cloud ¢ Implementing applications that are portable across different platforms ¢ Leveraging the capabilities of the underlying runtime platforms ¢ Focus on business requirements ¢ Faster time-2-market ¢ Increased Developers productivity
- 7. © OPITZ CONSULTING 2021 / Öffentlich TRADITIONAL VS CLOUD-NATIVE SYSTEMS Implementing Cloud-native Apps on OCI 7 ¢ Single Deployment unit ¢ Single execution process ¢ Shared database ¢ Local, app-internal communication only ¢ Multiple Deployment units ¢ Exclusive execution process per service ¢ Database per Service (usually) ¢ Remote, inter-service communication UI Business Logic Persistence
- 8. © OPITZ CONSULTING 2021 / Öffentlich Implementing Cloud-native Apps on OCI 8 WAY TO CLOUD-NATIVE https://opitzcloud.canto.global/b/M0IQC
- 9. © OPITZ CONSULTING 2021 / Öffentlich ACHIEVE LOOSE COUPLING THROUGH API DESIGN-FIRST APPROACH Implementing Cloud-native Apps on OCI 9 ¢ Synchronous APIs ¢ REST (OpenAPI) ¢ GraphQL ¢ gRPC ¢ Asynchronous APIs (preferred) ¢ Async API
- 10. © OPITZ CONSULTING 2021 / Öffentlich SPEED UP APP DELIVERY BY AUTOMATING THE DELIVERY PIPELINE Implementing Cloud-native Apps on OCI 10 ¢ Assumes no cycles and concentrates on the main process from commit to production Commit Stage Build Stage Automated Verification Stage Deploy to staging environments Manual Acceptance Test Load Test / Performance Test Security Test Deploy to prod environments Release Code Pipeline Deployment Pipeline ¢ Ensure Software is always releasable ¢ Runs less often, only if software is guaranteed to be working ¢ Feedback cycles often days up to 2-4 weeks ¢ Runs often ¢ Feedback cycles 10-15 min Continuous Delivery Continuous Deployment ¢ Automatic deploy and release to prod ¢ Needs to eleminate manual steps in continuous delivery
- 11. © OPITZ CONSULTING 2021 / Öffentlich SHIFT-LEFT: CLOUD-NATIVE REQUIRES CHANGED DEVELOPER MINDSET Implementing Cloud-native Apps on OCI 11 ¢ More responsibility on the developer side ¢ Move tasks from later stages to earlier stages in the pipeline to shorten cycle time ¢ Identifying issues earlier in the pipeline makes it cheaper to address issues ¢ Ensure quality earlier in the pipeline
- 12. © OPITZ CONSULTING 2021 / Öffentlich Implementing Cloud-native Apps on OCI 12 DEVELOPERS NEED TO EMBRACE TECHNOLOGY https://landscape.cncf.io/
- 13. © OPITZ CONSULTING 2021 / Öffentlich CNCF CLOUD-NATIVE TRAIL MAP Implementing Cloud-native Apps on OCI 13 Source: https://github.com/cncf/trailmap
- 14. © OPITZ CONSULTING 2021 / Öffentlich Implementing Cloud-native Apps on OCI 14 OCI CLOUD-NATIVE SERVICES https://opitzcloud.canto.global/b/M0IQC
- 15. © OPITZ CONSULTING 2021 / Öffentlich Implementing Cloud-native Apps on OCI 15 Oracle Cloud Infrastructure (OCI) (Network, Compute, Storage, etc.) Oracle Cloud Native Services Container Engine for Kubernetes (OKE) API Gateway Functions Streaming Application Runtime Container Registry (OCIR) Resource Manager Application Development Artifact Registry DevOps Monitoring Logging Events Application Operations Notifications Application Performance Monitoring
- 16. © OPITZ CONSULTING 2021 / Öffentlich APPLICATION RUNTIME: ORACLE CONTAINER ENGINE FOR KUBERNETES (OKE) Implementing Cloud-native Apps on OCI 16 Based on IaaS Oracle Compute Cloud Service Worker Nodes: VM Master Node: •Managed and maintained by Oracle •Not visible for the end user •Master nodes are free of charge Auto-scaling capabilities using Worker-Node Pools Can be provisioned using OCI Cloud Console OCI Cloud Shell OCI CLI Terraform (OCI Resource Manager)
- 17. © OPITZ CONSULTING 2021 / Öffentlich APPLICATION RUNTIME: API GATEWAY Implementing Cloud-native Apps on OCI 17 ¢ Fully-managed API Gateway ¢ Enables to publish API endpoints that are accessible ¢ Within the Cloud network only ¢ From the public internet ¢ Currently only REST APIs based on Open API are supported ¢ Exposed API endpoints support: API validation, Request/Reponse transformation, CORS, AuthN/Z, Rate limiting ¢ Can be provisioned using: ¢ OCI Cloud Console ¢ OCI Cloud Shell ¢ OCI CLI ¢ Terraform (OCI Ressource Manager)
- 18. © OPITZ CONSULTING 2021 / Öffentlich APPLICATION RUNTIME: FUNCTIONS Implementing Cloud-native Apps on OCI 18 ¢ Build FaaS-style apps ¢ Developers are not required to manage any infrastructure and just need to implement business code ¢ Build upon open standards and based on Fn project ¢ Multi language support through Function Developer Kit (FDK) ¢ FDKs comprise of different building blocks, like ¢ Language-specific Fn libraries ¢ Build-Time Docker images ¢ Minimal runtime Docker images ¢ Fn CLI is used to manage and create Functions
- 19. © OPITZ CONSULTING 2021 / Öffentlich APPLICATION RUNTIME: STREAMING Implementing Cloud-native Apps on OCI 19 ¢ Real-time, serverless, Apache Kafka-compatible event streaming platform ¢ Elastic and scalable platform managed by Oracle ¢ Deploy streaming apps at scale, capable to serve hundreds of consumers ¢ Open, standards-based ¢ Open source Apache Kafka-compatible ¢ Alternatively use native Streaming APIs (Python, Java, Typescript, Go) ¢ Security by design with built-in encryption and privacy
- 20. © OPITZ CONSULTING 2021 / Öffentlich APPLICATION DEVELOPMENT: CONTAINER REGISTRY Implementing Cloud-native Apps on OCI 20 ¢ Open standards-based, Oracle-managed Docker registry service for securely storing and sharing container images (Docker v2 compliant) ¢ Data protection through integration with OCI object storage ¢ Automatic clean up old docker images (Retention policies) ¢ Integrates with different OCI services and 3rd party DevOps and dev tools (Jenkins, Gitlab) ¢ Container Engine for Kubernetes (OKE) ¢ Identity and Access Management (IAM) ¢ Visual Builder Studio ¢ Docker containers can be pushed/pulled by Docker CLI and API
- 21. © OPITZ CONSULTING 2021 / Öffentlich APPLICATION DEVELOPMENT: ARTIFACT REGISTRY Implementing Cloud-native Apps on OCI 21 ¢ Repository service for storing, sharing, and managing software development packages (non- container) ¢ Kubernetes manifests ¢ JAR-Files created from Build pipelines ¢ API specifications ¢ … ¢ Option to store artifacts ¢ Immutable ¢ Versioned ¢ Identifiable (by Hash)
- 22. © OPITZ CONSULTING 2021 / Öffentlich APPLICATION DEVELOPMENT: DEVOPS Implementing Cloud-native Apps on OCI 22 ¢ End-to-end, continuous integration and continuous delivery (CI/CD) platform ¢ Service provides: ¢ Private Git repositories (allows connections to external code repos) ¢ Build pipelines ¢ Deployment pipelines Code Repository External Connection Trigger Build Pipeline Container Registry Artifact Registry Artifact Deployment Pipeline OKE Functions Compute
- 23. © OPITZ CONSULTING 2021 / Öffentlich APPLICATION DEVELOPMENT: RESOURCE MANAGER Implementing Cloud-native Apps on OCI 23 ¢ Automate the process of provisioning Oracle Cloud Infrastructure resources ¢ Infrastructure as Code (IaC) with HashiCorp Terraform using specific OCI Terraform provider ¢ Managing OCI resources in a declarative way ¢ Ensure consistent infrastructure management by supporting ¢ Immutable infrastructure approach ¢ GitOps
- 24. © OPITZ CONSULTING 2021 / Öffentlich APPLICATION OPERATIONS: MONITORING Implementing Cloud-native Apps on OCI 24 ¢ Provides insights on Cloud infrastructure and workloads with out-of-the-box metrics for health and performance ¢ Custom metrics for custom application can be sent using the Monitoring API ¢ Custom query support (MQL) to analyze metrics for a collection of resources ¢ Alarms for informing operations team team; can trigger OCI Notifications ¢ Supports metrics access using ¢ CLI, ¢ SDK, ¢ Console ¢ Grafana plugins
- 25. © OPITZ CONSULTING 2021 / Öffentlich APPLICATION OPERATIONS: LOGGING Implementing Cloud-native Apps on OCI 25 ¢ Centralized platform for all types of logs, such as audit, infrastructure, database and applications ¢ Build on open CNCF standards ¢ FluentD for log ingestion ¢ CloudEvents for log events ¢ Collects OOTB OCI infrastructure logs as well as custom application logs ¢ Notifications can be triggered based on rules ¢ Can be integrated with 3rd party provides (e.g. Splunk) by using OCI Streaming ¢ Logs can be analyzed using OCI Console
- 26. © OPITZ CONSULTING 2021 / Öffentlich APPLICATION OPERATIONS: EVENTS AND NOTIFICATIONS Implementing Cloud-native Apps on OCI 26 ¢ Tracks OCI resource changes using Events ¢ Events comply with the Cloud Native Computing Foundation (CNCF) CloudEvents standard ¢ Ensures interoperability ¢ Ability to build Multi-Cloud apps ¢ Developers / Operators can respond to those changes by using ¢ Oracle Functions ¢ Events published to OCI Streaming ¢ Sending alerts using notifications ¢ Highly available, low-latency publish/subscribe (pub/sub) service ¢ Sends alerts and messages to Oracle Functions, email, SMS, and message delivery partners, including Slack, PagerDuty, and ServiceNow ¢ Tight integration with OCI Monitoring to being able to send alerts in case of metric breaches
- 27. © OPITZ CONSULTING 2021 / Öffentlich APPLICATION OPERATIONS: APPLICATION PERFORMANCE MONITORING Implementing Cloud-native Apps on OCI 27 ¢ Provides a Distributed Tracing System as a Service ¢ Builds upon open standard like OpenTracing and OpenTelemetry ¢ Allows integration with modern microservice-based apps as well as legacy applications ¢ Tracing data be combined with log data and other collected data (metrics) ¢ View tracing data together with log and metrics data ¢ Ability to provide a 360-degree view on the application and infrastructure state ¢ Provides OOTB functionalities for end-user monitoring
- 28. © OPITZ CONSULTING 2021 / Öffentlich DEMO CASE: CLOUD-NATIVE MICRONAUT APP DEVELOPMENT WITH OCI Implementing Cloud-native Apps on OCI 28 OKE Resource Manager OCI API Gateway DevOps Container Registry Artifact Registry Developer Push code change Publish Build artifacts Push Container images Trigger Deployment Pull Container image Trigger infrastructure provisioning Deploy OKE cluster (and related resources) Consumer Events Notifications Publish events Consume events Send notification Call API service
- 29. © OPITZ CONSULTING 2021 / Öffentlich Implementing Cloud-native Apps on OCI 29 CONCLUSION https://opitzcloud.canto.global/b/SPU2S
- 30. © OPITZ CONSULTING 2021 / Öffentlich OCI CLOUD-NATIVE EMBRACES OPEN SOURCE AND OPEN STANDARDS Implementing Cloud-native Apps on OCI 30 ¢ Oracle is a CNCF member and actively contributes to the Open source community ¢ Helidon ¢ Micronaut ¢ GraalVM ¢ Kubernetes (Weblogic Operator, Database Operator) ¢ OCI Services supports, integrated with and is build upon open standards and tools provided by CNCF ¢ Open API ¢ Open Telemetry ¢ Open Tracing ¢ CloudEvents ¢ FluentD ¢ Prometheus ¢ Grafana ¢ Kafka ¢ …
- 31. © OPITZ CONSULTING 2021 / Öffentlich CLOUD-NATIVE MULTI-CLOUD APPS WITH ORACLE VERRAZZANO Implementing Cloud-native Apps on OCI 31 ¢ Modernization of existing application workloads by lifting application worlkloads to the Cloud ¢ Capable of handling polyglot workloads: ¢ Cloud-native and Kubernetes workloads (e.g. Helidon) ¢ Java EE (Weblogic) ¢ Non-Java apps ¢ Manage Multi-Cloud and Multi-Cluster workloads easily ¢ Network ¢ Security ¢ Observability Source: https://www.oracle.com/cloud-native/
- 32. © OPITZ CONSULTING 2021 / Öffentlich KEY TAKEAWAYS Implementing Cloud-native Apps on OCI 32 ¢ Apps should be built in a Cloud-native fashion ¢ Containers, DevOps and APIs are basic building blocks ¢ API design-first is important for consistent, intuitive API design ¢ Why implementing Cloud-native on OCI? ¢ Based on open source and standards ¢ Built-in management capabilities ¢ Designed for multi-cloud environments
- 33. © OPITZ CONSULTING 2021 / Öffentlich Implementing Cloud-native Apps on OCI 33 Q & A https://opitzcloud.canto.global/b/H0EMG
- 34. © OPITZ CONSULTING 2021 / Öffentlich IN CASE OF ANY QUESTIONS… Implementing Cloud-native Apps on OCI 34 Sven Bernhardt Chief Architect / Integration Evangelist | Oracle ACE Director OPITZ CONSULTING Deutschland GmbH Kirchstrasse 6, 51647 Gummersbach, Germany Phone: +49 172 2193529 Mail: [email protected] Twitter: @sbernhardt Blog: https://svenbernhardt.wordpress.com