Dockerizing apps for the Deployment Platform of the Month with OSGi - David Bosschaert & Carsten...

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Dockerizing for the Deployment Platform of the Month - with OSGiCarsten Ziegeler & David Bosschaert | Adobe

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David Bosschaert Adobe R&D Ireland OSGi EEG co-chair Apache member and committer ISO JTC1 SC38 (Cloud Computing) Ireland committee member

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Carsten Ziegeler RnD Adobe Research Switzerland Member of the Apache Software Foundation VP of Apache Felix and Sling OSGi Expert Groups and Board member

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Create...

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Containers to the Rescue Rapid / Simplified application deployment Lightweight, reduced overhead Portability across machines Sharing

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Application Canning

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OSGi app == Java App Various solutions Apache Karaf

Distribution Apache Sling

Launchpad Provisioning Model

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Common Setup

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OSGi Framework Launcher

Initial Bundles / Configuration

Runtime Provisioning

<feature name="my-project" version="1.0.0"> <bundle>mvn:com.mycompany.myproject/myproject-dao</bundle> <bundle>mvn:com.mycompany.myproject/myproject-service</bundle> <config name="com.foo.bar"/> </feature>

[feature name=“my-project“] com.mycompany.myproject/myproject-dao/1.0.0 mvn:com.mycompany.myproject/myproject-service/1.0.0[configurations] com.foo.bar

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OSGi Goodies Modularity Requirements and Capabilities

Explicitly declare and isolate dependencies

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Run...

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Yay dockerize your app!

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docker container 1

App

clientdocker container 2

App

docker container 3

App

?

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You need a load balancer

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docker container 1

App

docker container 2

App

docker container 3

App

client LB

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Example deployment: Sling Containers!

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docker container 1

Sling

docker container 2

Sling

docker container 3

Sling

client LB

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Manage...

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Solutions

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Docker Swarm

Amazon ECS

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Here’s how… Docker Swarm/Compose

docker-compose up –d docker-compose scale mysling 3

DC/OS Marathon curl -i -H 'Content-Type: application/json' -d @<mysling.json>

http://mymarathon:8080/v2/apps Kubernetes

kubectl run mysling-node --image=cziegeler/apacheslingdemo --port:8080kubectl expose deployment mysling.node --type="LoadBalancer"

Amazon ECS aws ecs register-task-definition --family myslingfam --container-definitions

‘[{"name":"mysling”,"image":"cziegeler/apacheslingdemo","cpu":1,"memory":512,"essential":true}]’

aws ecs create-service --service-name myslingsvc --task-definition myslingfam --desired-count 3 16

yaml

json

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Everybody takes Docker containers ... but applications are defined using various proprietary APIs makes it very labour intensive to switch can we have a common API please?

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Or how about a common APIContainerFactory cf = … from service registry …

LoadBalancerConfig lbCfg = LoadBalancerConfig.builder(). port(80). pingLocation("/slingshot.html").build();ContainerGroupConfig config = ContainerGroupConfig.builder("mysling", "cziegeler/apacheslingdemo"). cpu(1). memory(512). instances(3). loadBalancer(lbCfg). port(8080, true).build();

Service svc = cf.getService(config);18

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Demo!

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OSGi RFP 179 – Compute Management Service Accepted OSGi RFP Independent API to manage compute nodes Can work with RFC 183

Cluster Information Specification (previously Cloud Ecosystems) Node discovery, metadata and provisioning

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Discussion

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