running rancher and docker on dev machines - rancher online meetup - may 2016

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Running Docker and Rancher Locally on Dev MachinesMay 26, 2016

#ranchermeetup

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Shannon WilliamsCo-Founder/VP Marketing @smw355

Darren ShepherdCo-Founder/Chief Architect @ibuildthecloudFreenode: darren0

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Chris UrwinDevOps Lead - UKRancher Labs @containerschris

Mark MatthewsPrincipalARKM Enterprisehttps://uk.linkedin.com/in/mark-matthews-2965501

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First things first…

This is a not a !

#ranchermeetup

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There are rules for a meetup!• We won’t be done on time• Questions are always welcome• There are no bad questions• Demo, then demo some more• Things will break, be patient

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Join the conversation on Twitter #ranchermeetup

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Agenda• From Dev to DevOps to Dev - Shannon• Running Docker and Rancher Locally on Dev Machines – Chris• Demo: Building a Micro DC - Chris• User Story: Rancher for our Dev Team – Mark• Latest Rancher Update – Darren

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Rancher Labs

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Building a Container Service

Container Service

Linux Linux Linux Linux Linux Linux

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How to deploy a container service

Container Service

Linux Linux Linux Linux Linux Linux

App Catalog

Orchestration

Scheduling

Monitoring

Access Control

Network

Storage

Distributed DB

Registry

Engine

Security

Helm, …

Compose, Kubernetes, Marathon,

Swarm, Kubernetes, Mesos, …

cAdvisor, Sysdig, Datadog, …

LDAP, AD, GitHub, …

DockerHub, Quay.io, …

Docker, Rkt, …

Notary, Vault, …

VXLAN, IPSEC, HAProxy, …

Ceph, Gluster, Swift, …

Etcd, Consul, MongoDB, …

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Rancher OverviewMicroservice Catalog

AD/LDAP

Leverage existing tools:- CI/CD- Code

Repository- Monitoring

Environment 1 Environment N…Network Services Storage Services

Container Orchestration and SchedulingUser Mgmt Ops Mgmt

Environment 2

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Running Docker and Rancher Locally on Dev Machines

My other data center is this laptop

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Problem Statement

“I want my developers and testers to be able to build and test quality code independently; using the same toolset as production uses.”

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Some of the problems….• Multiple developers all trying to update

applications at the same time• Scheduling conflicts• No SSL or proxy server• Data quality/consistency issues• Network contention• Environment consistency

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A potential solution• Running Docker in the datacentre…run it

locally• Running Rancher in the datacentre…run it

locally• On a local hypervisor (or natively)• Have a common data set • Useful for Developers and testers

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What does it look like

MirrorRancher Server

Rancher Agent

Jenkins

DesktopVirtualisation Layer

App Stack

Development VMShared Folders

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Demo

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How can Rancher help?• Gives visibility of application stack• Can be utilised by less technical resources• Consistency• API and GUI• Load Balancing• Catalog

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Demo App

Voting App

Redis queue

Java Worker

DatabaseResults App

Voting App

Voting AppLoad Balancer

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Demo

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The flow

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Benefits of local dev• More representative of production• Distributed build system• Independent development• Moves Developers more to Devopers• Familiarity with tools• Consistency

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Limitations• Physical• The more memory the better• The fastest disks you can get• Your imagination…

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Rancher Dev In A Box

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Don't Bash it out, Compose it We all start with bash script building and

running docker containers We nearly all then use docker-compose instead The iced cake is using Rancher Compose for

scaling and interdependent service stack management

More composition means more reliable scripting How to take full advantage of this?

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Mirror Mirror on the Laptop Reduces network contention Pull in the background today for your build

tomorrow A great enabler for fast dev builds Faster dev builds for quicker feedback cycles Low overhead

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CI fingers in all the pies Gives a UI for testers - because most teams still

have these Can talk to the host file system, dev box,

rancher box Make sure you sidekick a data volume, thus

direct code refresh from local git Easily switch between projects (stacks off,

stacks on, no need to delete) Easy re-deploy from latest code

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Rancher++ Managing containers is a pain, rancher solves

that, so give it to everyone Rancher lets everyone easily see memory, io,

network traffic - early diagnosis More easily test multi-stack systems - don't

leave that to PTL or Prod, solve the pain early Especially for less surprises on your [sticky] session

handling Internal registry trick "localhost:5000/" Same deployment and management tools as

PTL & Prod Low overhead

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Thanks! Enquiries to

Mark Matthews markmatthews@arkmEnterprises.co.uk

Chris Urwin chris@rancher.com

Hand drawn images and the ARKM logo (c) ARKM Enterprises 2016.

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Latest Rancher Enhancements

31

1.0.1• Rancher Multi-node Simplification

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1.1-dev2 • Experimental Mesos support• F5 Load balancer integration• Customizable Docker Machine UI

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Getting StartedRancher and RancherOS are in GitHub – Get Involved!

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http://github.com/rancher

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New eBook: Building a CI/CD Pipeline with Docker & Rancher

http://info.rancher.com/cicd-with-docker-ebook

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Thank yourancher.com

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