First cloud native computing meetup Zürich What is cloud native computing ? Who is the Cloud native computing foundation cncf.io ? What are the projects under the CNCF ?

1. VSHN AG I Neugasse 10 I 8005 Zürich I T 044 545 53 00 www.vshn.ch
Cloud Native Computing Meetup 11.5.2017
Cloud Native
Computing Meetup
Kickoff

2. VSHN AG I Neugasse 10 I 8005 Zürich I T 044 545 53 00 www.vshn.ch
Agenda
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Intro
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What is CNC
●
CNCF
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Projects in the CNCF
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Why?
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Kubernetes
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Fluentd

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Who
Aarno Aukia, CTO & co-founder VSHN
@aarnoaukia, aarno.aukia@vshn.ch
Tobias Brunner, Head of DevOps VSHN
@tobruzh, tobias.brunner@vshn.ch
VSHN AG - the DevOps company
Since 2014, 18 people in Zürich
https://vshn.ch @vshn_ch

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What is Cloud Native Computing 1/2
●
Patterns and best practices how to build
(distributed) software applications
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Containerized: Each part is packaged in its
own container for reproducibility,
transparency and resource isolation
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Dynamically orchestrated: Containers are
actively scheduled and managed to
optimize resource utilization.
●
Microservices oriented: Applications are
segmented into microservices for overall
agility and maintainability of applications.

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What is Cloud Native Computing 2/2
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A set of OSS to implement and/or support
these patterns
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Share experience and code for the
'generic' problems
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Infra independent

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What is Cloud Native Computing Foundation
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http://CNCF.io
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Sub-Foundation of the Linux Foundation
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Established 2015
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Governing body for financial resources
(donations), trademarks, events, etc
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https://www.cncf.io/about/members/
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Cisco, CoreOS, Docker, Google, IBM, RH,
SUSE, Netapp, Dell, Fujitsu, Huawei, Intel,
Samsung, ATT, Canonical, Twitter, ebay,
Zalando, etc

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CNCF project criteria
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Add value to cloud native computing
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Be used >3 production users
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Healthy number of committers & commits
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Best practices, code of conduct,
governance, committer process
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Voted by CNCF board

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https://www.cncf.io/projects/ 1/2
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Kubernetes: container/service
orchestration
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Prometheus: metrics aggregation &
alerting
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OpenTracing: distributed service call
tracing
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Fluentd: log data collector
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Linkerd: service call framework
(discovery, routing, failure handling,
visibility)

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https://www.cncf.io/projects/ 2/2
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gRPC: multi-language service call
framework (data serialization, streaming,
auth)
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CoreDNS: DNS server for service
discovery
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Containerd: container runtime daemon
(OCI runtime (runC), OCI image spec)
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Rkt: container runtime (App Container
(appc) spec)

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Why cloud native computing ?
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Patterns: higher level problem solving
than 'just use tool x'
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Open source and open standards
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Broad support consortium
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Runs on any infrastructure → cloud native
not cloud only
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Application infrastructure as code
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DevOps philosophy

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Containerd / rkt
Lightweight container runtime
Package code, runtime, plugins, libraries
Helps you to use 12-Factor-App pattern
(explicit entrypoint, port, volume
configurations)
Automatically built, quickly started, one-
time use

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From container to production ?

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Kubernetes
Container orchestrator:
How many of a kind should be running ?
On which IP/port/machine are they ?
How do they find each other ?
What happens when a container/machine
disappears ?
Scaling, load balancing, rolling
deployments
https://blog.vshn.ch/2016/08/openshift

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Container orchestration

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OpenShift
How to get the application in the
container ?
Web-GUI, CLI client, REST-API
https://blog.vshn.ch/2016/08/openshift

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OpenShift

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Demo 1/3
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# MiniKube: kubernetes on your laptop:
https://github.com/kubernetes/minikube
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# see README for dependencies
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Minikube start
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kubectl run hello-minikube
--image=gcr.io/google_containers/echose
rver:1.4 --port=8080
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kubectl expose deployment hello-
minikube --type=NodePort
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kubectl get pod # wait until pod is started
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curl $(minikube service hello-minikube
--url)

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Demo 2/3
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# deploy multiple services
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# example kubernetes config:
https://github.com/kubernetes/kubernetes/blob/m
aster/examples/guestbook/all-in-one/guestbook-a
ll-in-one.yaml
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kubectl create -f
https://raw.githubusercontent.com/kubernetes/ku
bernetes/master/examples/guestbook/all-in-one/g
uestbook-all-in-one.yaml
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kubectl delete svc/frontend
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kubectl expose deployment frontend
--type=NodePort
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open $(minikube service frontend --url)

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Demo 3/3
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# cleanup
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kubectl delete -f
https://raw.githubusercontent.com/kubernetes/ku
bernetes/master/examples/guestbook/all-in-one/g
uestbook-all-in-one.yaml
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Minikube stop

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Fluentd
Talk by Tobias Brunner

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Thanks!
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What do you want to talk about at this
meetup ?
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What CNC technologies do you use
already ?
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Questions ?
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Need for discussion ?
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Topics ?