Kubernetes, Istio e Knative: The new cloud stack

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Kubernetes, Istio e Knative: The new cloud stack Luram Archanjo

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Who am I? ● Software Engineer at Sensedia ● MBA in Java projects ● Java and Microservice enthusiastic

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Agenda ● Serverless ● Knative & Components ● Why Kubernetes & Istio? ● Demo ● Questions

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What is Serverless?

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What is Serverless? Serverless computing, is an execution model where the cloud provider is responsible for executing a piece of code by dynamically allocating the resources. Source: https://serverless-stack.com & https://martinfowler.com/articles/serverless.html Scalability Reduced operational cost Time to market

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What is Knative?

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What is Knative? Kubernetes based open source building blocks for serverless Source: https://knative.dev

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Knative Components

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Knative Components Source: https://knative.dev

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Knative Components Serving How your code receives requests and scales with them: ● Automatic scaling up and down to zero ● Multiple revisions of same function ● Route traffic across revisions Eventing How your code is triggered by events: ● Functions consume and publish events ● Multiple event sources available ● Encourages asynchronous Build How your code is built and packaged as a container: ● Pluggable model to build ● Build in-cloud or on-cluster ● Templates available

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How Build works?

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How Build works? Source: https://knative.dev Code Container Image Registry

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How Serving works?

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How Serving works? Source: https://knative.dev Service Manages the whole lifecycle of your workload. Configuration Maintains the current/desired state for your deployment. Revision A point-in-time snapshot of code and configuration. Route Maps and manage traffics to revisions.

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How Serving works?

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How Serving works?

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How Serving works?

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How Serving works?

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How Eventing works?

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How Eventing works? Source: https://knative.dev

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How Eventing works? Source: https://knative.dev

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Why Kubernetes?

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Kubernetes ● Horizontal scaling ● Auto-scaling ● Service discovery and Load balancing ● Self-healing

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Why Istio?

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Istio ● Traffic management ○ Traffic Routing ● Security ○ East-West ○ North-South ● Observability ○ Metrics ○ Traces ○ Logs

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Demo

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Summary 2º Place 1º Place 3º Place Build on top of Kubernetes and Istio ● Automatic scaling up and down to zero ● Route traffic across revisions ● Load-balancing Flexibility and No Vendor Lock-in ● Cloud ● Premises ● Third-party data center Serverless Experience in a Containerized Environment ● Immutability ● High Scalability ● Pipeline Management

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Thanks a million! Questions? /larchanjo /luram-archanjo