Thomas Vitale The Golden Path to SpringOne Mar 23rd, 2023 A Paved Path to Production on Kubernetes @vitalethomas

Systematic • Software Engineer and Cloud Architect. • Author of “Cloud Native Spring in Action” (Manning). • OSS contributor (Java, Spring, Cloud Native Technologies) Thomas Vitale thomasvitale.com @vitalethomas

Problem @vitalethomas

Value @vitalethomas

Delivering Value From idea to production Developer Production Idea @vitalethomas ?

Goals 2 Reduced cognitive load 3 Clear and safe path to production 1 Rapid and continuous feedback loop @vitalethomas

Development Workflow @vitalethomas

Cloud Native @vitalethomas

From Traditional to Cloud Native Application Server, Embedded Server Runtime (JVM) Middleware (Application Server) Application (WAR/EAR) Runtime (JVM) Application (JAR) @vitalethomas

Containers @vitalethomas

Moving to Containers Application Server, Embedded Server, Container Runtime (OCI) Application (Container) Runtime (JVM) Middleware (Application Server) Application (WAR/EAR) Runtime (JVM) Application (JAR) @vitalethomas

Cloud Native Buildpacks @vitalethomas

Image pack build Cloud Native Buildpacks From source code to container image @vitalethomas

Kubernetes @vitalethomas

Moving to Kubernetes Application Server, Embedded Server, Container, Kubernetes Runtime (OCI) Middleware (Kubernetes) Application (Container) Runtime (JVM) Middleware (Application Server) Application (WAR/EAR) Runtime (JVM) Application (JAR) Runtime (OCI) Application (Container) @vitalethomas

Tilt @vitalethomas

Tilt Continuous development on Kubernetes @vitalethomas CODE BUILD RUN TEST

Goals 2 Reduced cognitive load 3 Clear and safe path to production 1 Rapid and continuous feedback loop @vitalethomas

CI/CD Pipeline(s) @vitalethomas

CI/CD Pipeline (Imperative) Check out source code Build container image Con fi gure workload Deploy workload Orchestrator Tightly coupled Rigid system No clear separation of concerns Hard to maintain @vitalethomas

Delivering Value From code to production Developer Production Application Operator Security Expert Platform Engineer @vitalethomas

Check out source code Build container image Con fi gure workload Deploy workload @vitalethomas

Check out source code Build container image Con fi gure workload Deploy workload Kubernetes Manifests GitOps @vitalethomas

Check out source code Build container image Con fi gure workload Deploy workload Kubernetes Manifests Container Image

Check out source code Build container image Con fi gure workload Deploy workload Kubernetes Manifests Container Image Source Code CI/CD Pipeline (Reactive) Loosely coupled Separation of concerns Flexible Consistent path to production

Check out source code Build container image Con fi gure workload Deploy workload Kubernetes Manifests Container Image Source Code CI/CD Pipeline (Reactive) Loosely coupled Separation of concerns Flexible Consistent path to production

Cartographer @vitalethomas

Kubernetes Native Choreographer Framework to build paved paths to production @vitalethomas

Workload API Developer-friendly interface @vitalethomas apiVersion: carto.run/v1alpha1 kind: Workload metadata: name: band-service labels: apps.kadras.io/workload-type: web spec: source: git: url: https://github.com/ThomasVitale/band-service ref: branch: main

Watch Source Code Testing Build Con fi guration Deployment

https://landscape.cncf.io

SupplyChain API Describes the path to production @vitalethomas apiVersion: carto.run/v1alpha1 kind: ClusterSupplyChain metadata: name: supply-chain spec: selector: apps.kadras.io/workload-type: web resources: - name: source-provider templateRef: kind: ClusterSourceTemplate name: source - name: image-builder templateRef: kind: ClusterImageTemplate name: image sources: - resource: source-provider name: source - name: deployer templateRef: kind: ClusterTemplate name: app-deploy images: - resource: image-builder name: image

cartographer.sh

Watch Source Code Testing Build Con fi guration Deployment

@vitalethomas apiVersion: source.toolkit.fluxcd.io/v1 kind: GitRepository metadata: name: band-service spec: interval: 1m0s url: https://github.com/ThomasVitale/band-service ref: branch: main

@vitalethomas apiVersion: source.toolkit.fluxcd.io/v1 kind: GitRepository metadata: name: $(workload.metadata.name)$ spec: interval: 1m0s url: $(workload.spec.source.git.url)$ ref: $(workload.spec.source.git.ref)$

@vitalethomas apiVersion: carto.run/v1alpha1 kind: ClusterSourceTemplate metadata: name: source spec: urlPath: .status.artifact.url revisionPath: .status.artifact.revision template: apiVersion: source.toolkit.fluxcd.io/v1 kind: GitRepository metadata: name: $(workload.metadata.name)$ spec: interval: 1m0s url: $(workload.spec.source.git.url)$ ref: $(workload.spec.source.git.ref)$

@vitalethomas apiVersion: carto.run/v1alpha1 kind: ClusterSourceTemplate metadata: name: source spec: urlPath: .status.artifact.url revisionPath: .status.artifact.revision template: apiVersion: source.toolkit.fluxcd.io/v1 kind: GitRepository metadata: name: $(workload.metadata.name)$ spec: interval: 1m0s url: $(workload.spec.source.git.url)$ ref: $(workload.spec.source.git.ref)$ Template API Supply chain activities

Capabilities over responsibilities @vitalethomas

Developer @vitalethomas

Developer Platform @vitalethomas

Developer Platform @vitalethomas

Goals 2 Reduced cognitive load 3 Clear and safe path to production 1 Rapid and continuous feedback loop @vitalethomas

Resources @vitalethomas

Resources Source code • Presentation source code • Kadras: Cloud Native Platforms Toolkit • Cloud Native Buildpacks for ARM64 • Software Supply Chain Choreography • Cartographer • Cartographer CLI • Tanzu Application Platform @vitalethomas

Thomas Vitale The Golden Path to SpringOne Mar 23rd, 2023 A Paved Path to Production on Kubernetes thomasvitale.com @vitalethomas @thomasvitale@mastodon.online