Building and Operating Cloud-Native Applications

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Building and Operating  Cloud-Native Applications Michael Hausenblas @mhausenblas  Developer Advocate, Red Hat  2018-02-16, PHP Conference, London

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Hit me up on Twitter: @mhausenblas 2 • Developer Advocate @ Red Hat (Go, Kubernetes, OpenShift) • Developer Advocate @ Mesosphere • Chief Data Engineer @ MapR • Applied research (IE/AT) • Nowadays mainly Go (Python, Node, PHP, Java, C++) • Dev turned ops $ whois mhausenblas

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Hit me up on Twitter: @mhausenblas 3 admin SRE developer QA architect PM PHB

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https://unsplash.com/photos/m0wptz8vYpw motivation

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Hit me up on Twitter: @mhausenblas 5 https://www.pexels.com/photo/people-running-during-daytime-33703/ out-perform competition

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Hit me up on Twitter: @mhausenblas 6 https://pixabay.com/en/logistics-stock-transport-shipping-852936/ ship around the clock!

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Hit me up on Twitter: @mhausenblas 7 togetherness

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https://unsplash.com/photos/3y1zF4hIPCg tenets

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Hit me up on Twitter: @mhausenblas 9 AIA Automation Immutability APIs

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Hit me up on Twitter: @mhausenblas 10 • Manual == brittle & error-prone • Playbooks? • Agility? • Bus factor? Automation

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Hit me up on Twitter: @mhausenblas 11 Immutable infrastructure

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Hit me up on Twitter: @mhausenblas 12 Immutable infrastructure • Good old pets vs cattle • Idempotence?! • Increased reproducibility

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Hit me up on Twitter: @mhausenblas 13 APIs The API (not the implementation) is important! Examples: • HDFS • GraphQL • Kubernetes API

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Hit me up on Twitter: @mhausenblas 14 APIs • Decoupling • Open, standardized?! • Declarative?

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https://unsplash.com/photos/osSryggkso4 technologies

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Hit me up on Twitter: @mhausenblas 16 • Cloud Native computing • Containers & container orchestration • Service meshes • Data meshes • Observability Technologies

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What is ‘Cloud Native’?

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Hit me up on Twitter: @mhausenblas 18 Cloud Native Computing Foundation (CNCF) cncf.io

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Hit me up on Twitter: @mhausenblas 19

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Hit me up on Twitter: @mhausenblas 20 Maybe not … twitter.com/mhausenblas/status/879752918131519488

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Hit me up on Twitter: @mhausenblas 21 Where did it come from? Dan Kohn, CNCF

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Hit me up on Twitter: @mhausenblas 22 Starting point: twelve factor apps 12factor.net

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Hit me up on Twitter: @mhausenblas 23 … and beyond • portability between environments • appropriate unit of deployment such as a container or a function • typically dealing with distributed systems • elasticity—workload-dependent auto-scaling 301.sh/cloud-native-def-wip

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Hit me up on Twitter: @mhausenblas 24 Portability • Avoid platform lock-in • Enable hybrid cloud deployments • multi-cloud • on-premises and cloud

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Hit me up on Twitter: @mhausenblas 25 Unit of deployment • Physical servers • VMs • Containers • Functions

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Hit me up on Twitter: @mhausenblas 26 Distributed systems • Scale out on commodity hardware • Fallacies of distributed computing  en.wikipedia.org/wiki/Fallacies_of_distributed_computing • Stateful services shard inherently

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Containers & Container Orchestration

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Hit me up on Twitter: @mhausenblas 28 Containers 101 containerz.info … a process group on steroids using namespaces, cgroups, and a copy-on-write ﬁlesystem

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Hit me up on Twitter: @mhausenblas 29 Container orchestration

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Hit me up on Twitter: @mhausenblas 30 Container orchestration kubernetes.io • Container lifecycle management • Declarative, state-driven • Extensible, modular API • Robust, ﬂexible, scalable

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Service Meshes

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Hit me up on Twitter: @mhausenblas 32 Service meshes istio.io • Trafﬁc management • Monitoring & tracing • Policy enforcement • Service identity and security • No app code changes

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Data Meshes

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Hit me up on Twitter: @mhausenblas 34 Data meshes

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Hit me up on Twitter: @mhausenblas 35 Data meshes dotmesh.com • Data state management across microservices • Operating on a ﬁlesystem level • Externalize snapshotting • Troubleshooting, debugging

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Hit me up on Twitter: @mhausenblas 36 Data meshes www.youtube.com/watch?v=eJkns4jBU_0

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Observability

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Hit me up on Twitter: @mhausenblas 38 • Monitoring • Logging • Distributed tracing Observability

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Developing Cloud Native

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Hit me up on Twitter: @mhausenblas 40 Current state build artefacts build tooling runtime conﬁg code creds CI/CD pipeline |||| code repo binary bare metal server/VMs

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Hit me up on Twitter: @mhausenblas 41 The cloud native way build artefacts build tooling runtime CI/CD pipeline |||| code repo container container orchestrator +  service mesh conﬁg code creds container image manifest container runtime manifest service mesh manifest container  registry

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Hit me up on Twitter: @mhausenblas service mesh manifest container runtime manifest container image manifest 42 Cloud native dev & ops maturity model code, conﬁg, creds service mesh container orchestrator container registry repo CI/CD artefacts tooling

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Hit me up on Twitter: @mhausenblas 43 Development setups remote local cluster dev cluster dev cluster dev dev cluster pure off-line proxied live pure on-line

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Hit me up on Twitter: @mhausenblas 44 Development setups www.telepresence.io vapor-ware.github.io/ksync/ www.openshift.org kubed.sh kedgeproject.org ksonnet.io Minikube Minishift Docker Community Edition for Mac and Windows

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Function-as-a-Service

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Hit me up on Twitter: @mhausenblas 46 Serverless is spelled `F` `a` `a` `S` (Function-as-a-Service)

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Hit me up on Twitter: @mhausenblas 47 Landscape

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Demo

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Hit me up on Twitter: @mhausenblas 49 Challenges • Fast-moving ecosystem • Observability • Security • Organizations

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Resources

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Hit me up on Twitter: @mhausenblas 51

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Hit me up on Twitter: @mhausenblas 52 • What is Cloud Native?  http://container-solutions.com/what-is-cloud-native/ • Understanding Cloud Native Infrastructure  https://www.infoq.com/articles/cloud-native-infrastructure • What is a Service Mesh, and Do I Need One When Developing Cloud Native Systems?  https://skillsmatter.com/skillscasts/10668-looking-forward-to-daniel-bryant-talk • CNCF Webinars  https://www.cncf.io/community/recorded-events/ Articles

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Hit me up on Twitter: @mhausenblas 53 For developers … some.ops4devs.info

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