Scaling and Orchestrating Microservices with OSGi - N Bartlett
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This document discusses how OSGi services can be used to implement microservices and enable their orchestration and scaling. It describes how OSGi services have supported capabilities like runtime assembly, software components, and continuous delivery since before the term "microservices" was coined. The document argues that OSGi services align with many characteristics of microservices, like independent deployability, but with OSGi additionally enforcing encapsulation where discipline is needed with other approaches. It also discusses how OSGi remote services and discovery allow services to be scaled horizontally across processes and machines while enabling dynamic availability and pluggability. The document demonstrates these concepts with an OSGi-based microservices orchestration platform.
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Abstract:
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This document provides an overview of Kong, an open-source API gateway. It discusses that Kong is a cloud-native, scalable middleware between clients and APIs, and supports features like authentication, security, traffic control, and analytics. The document also summarizes the Community and Enterprise editions of Kong, including that the Enterprise edition provides additional capabilities like an admin GUI, API analytics, and support. It concludes with an example of using Kong to expose an API and discusses benefits and concerns of Kong.
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The document discusses the evolution of application networking from individual microservices libraries to shared proxies like Envoy and service meshes like Istio. It notes that as applications adopt microservices architectures, many common concerns around distributed systems must be addressed, such as service discovery, load balancing, and fault tolerance. Initially, different frameworks offered individual libraries to handle these issues, but this led to inconsistencies and increased complexity. Envoy proxy and the Istio service mesh aim to provide a standardized and shared way to address these cross-cutting distributed system concerns for all services regardless of language or framework.
Building a Web Frontend with Microservices and NGINX Plus
Watch the webinar on demand at: nginx.com/resources/webinars/web-microservice-controlled-stateless-and-connected
While many articles and books have been written about service design, there is a scarcity of information about how to integrate rich, user-experience-based web development onto a microservice-based application. In many respects the web frontend is the most complex part of the application, but it needs to scale and interface with your system just like any other microservice.
The question is, how will your frontend system access your backend microservices? What will you do to make the frontend as stateless and ephemeral as the rest of your microservices? How will you provide your JavaScript application components with access to your microservices?
Watch this webinar to learn how to:
* Build your frontend using Model-View-Controller frameworks
* Implement session state as a cached component in an attached resource
* Use NGINX Plus routing and load balancing to give JavaScript access to microservices
What's hot (20)
Introduction to micro-services @DevOps pune Meetup
Introduction to micro-services @DevOps pune Meetup
An Open-Source Platform to Connect, Manage, and Secure Microservices
An Open-Source Platform to Connect, Manage, and Secure Microservices
Micro service architecture - building scalable web solutions - George James -...
Micro service architecture - building scalable web solutions - George James -...
Microservices:
The phantom menace
. Istio Service Mesh:
the new hope
Microservices:
The phantom menace
. Istio Service Mesh:
the new hope
Structuring node.js projects - Seven Peaks Software (Node.JS Meetup 18 nov 2021)
Structuring node.js projects - Seven Peaks Software (Node.JS Meetup 18 nov 2021)
Building a Web Frontend with Microservices and NGINX Plus
Building a Web Frontend with Microservices and NGINX Plus
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OSGi ecosystems compared on Apache Karaf - Christian Schneider
OSGi Community Event 2015
A look at three competing OSGi ecosystems (Declarative Services, Blueprint, CDI). Capabilities of each DI framework. Comparison of support for EE technologies like JPA, Security, SOAP and REST services, UIs. Looking into some of the recent advancements like Aries JPA 2 featuring closure based transactions, JAAS Security, JSP and JSF on OSGi. Attendees will get a good overview about the stacks as well as recommendations where each is most applicable.
OSGi Provisioning With Apache ACE
The document discusses OSGi provisioning with Apache ACE. It provides an overview of Apache ACE, which is an OSGi-based software distribution framework. It describes how Apache ACE handles dependency management and mapping of artifacts to targets. It also outlines the deployment process, including deployment repositories, management agents, deployment administrators, and feedback. The presentation concludes with a demo and discussion of opportunities for contributions and commercial support.
The Rise of Microservices - Containers and Orchestration
The document discusses microservices and containers. It defines microservices as small, independent services with well-defined interfaces that allow for decentralized control and independent deployments. Containers are presented as a way to package and run microservices using technologies like Docker. Orchestration with systems like Kubernetes and Mesos is described as a way to automate deployment, linking, and maintenance of multiple containers across infrastructure. MongoDB is discussed as a good fit for microservices due to its flexibility, redundancy, scalability, and simplicity.
Apache Karaf - Building OSGi applications on Apache Karaf - T Frank & A Grzesik
OSGi Community Event 2014
Abstract:
Experience level: Beginner
Apache Karaf is a small OSGi based runtime which provides a lightweight container onto which various components and applications can be deployed.
This session gives an overview over Apache Karaf, how to manage and configure Apache Karaf and how to use the comprehensive command shell that Karaf provides. By the example of a simple pet clinic application we will demonstrate how to build and deploy a web application on Apache Karaf. This talk will introduce the different deployment mechanisms available in Karaf and how to deploy bundles from the file system, command shell or via a maven repository. You will learn how to manage external dependencies via features, use the Karaf maven plugin to create features and build and configure persistence bundles for Apache Karaf. We will further give an overview, how to use Karaf in a cloud environment and how to use the Apache Cellar project to build up an Apache Karaf cluster.
Speaker Bios:
Torsten Frank
Torsten Frank is an entrepreneur and healthcare IT expert with international experience and a strong background in product and business development. He is CEO and founder of medisite, a company that delivers highly specialized healthcare IT solutions to their customers for more than 10 years. medisite is a winner of the Federal Ministry for Economic Affairs and Energy (BMWi) “Trusted Cloud” technology competition, geared toward secure cloud computing for SMEs and the public sector. Torsten Frank holds a medical degree from the Hannover Medical School, where he also has worked for several years as a physician at the Department of Cardiothoracic Surgery after completing his medical studies in Hannover, Germany and Chicago, USA.
Alexander Grzesik
Alexander is the head of development of medisite Systemhaus GmbH and responsible for the development of the the PaaS+ cloud platform the clinical information system m.life and software architect for the TRESOR Project.
He has 15 years of work experience in medical Software development as team leader and software architect.
Expert for Software Architecture, OSGi, Java and Java EE.
Alexander has been a speaker at several conferences including EclipseCon Europe and the OpenShift Community Day.
Microservices OSGi-running-with-apache-karaf
This document discusses microservices and OSGi services running with Apache Karaf. It covers some of the operational overhead and complexity of microservices compared to using OSGi microservices (μServices) with Apache Karaf. Key points include reduced operational overhead and skills requirements, built-in support for versioning and distributed capabilities with OSGi μServices in Apache Karaf. Continuous delivery techniques like using Jolokia for deployment and Apache Karaf Cellar for clustering are also mentioned.
Flossuk2015 opennms1.0;21 03-2015
The document discusses OpenNMS, an open-source network management platform. It provides an overview of OpenNMS capabilities, community, and commercial users. Key features include scalability, data collection from various sources, alarm correlation and notification, and dashboards and reports to support service provider processes.
Modular Java applications with OSGi on Apache Karaf
Java2Days conference presentation - demo code featuring how to develop modular Java applications on Apache Karaf
Containerizing MongoDB with kubernetes
An overview of how to use MongoDB and Kubernetes (k8s) primitives to take advantage of all of the good things both have to offer.
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Presentation that discusses lessons learned from building a large scale OSGi web application over the past few years.
OpenNMS - My Notes
OpenNMS is an open source network management platform that can monitor large, complex networks. It is enterprise-grade, supporting over 60,000 devices on a single instance. OpenNMS uses a modular architecture that allows for integration of other monitoring tools. It is published under the GPL license and all components are open source. OpenNMS focuses on provisioning, event and notification management, service assurance, and performance data collection across networks.
The OSGi Service Platform in Integrated Management Environments - Cristina Di...
Managing OSGi platforms and applications using JMX provides an integrated management environment. JMX can manage OSGi entities that are dynamically mapped and exposed as JMX MBeans. This allows leveraging existing JMX management tools and integrating with network protocols like SNMP. While JMX and OSGi overlap in some areas, they can be seen as complementary for managing OSGi in home gateway environments. Future work includes improving OSGi to JMX mappings and supporting application provisioning and reconfiguration.
WebSockets and Equinox OSGi in a Servlet Container - Nedelcho Delchev
OSGi Community Event 2016 Presentation by Nedelcho Delchev (SAP)
How to use WebSockets, coming as a standard feature with the modern Servlet Containers (e.g. Tomcat 7.x) from within the embedded Equinox OSGi environment deployed as a WAR application archive?
This talk will explain in details how to configure the classloaders and dependencies as well as how to create a websocket bridge for the internal OSGi plugins.
OSGi IoT Demo & Contest 2015
The document describes an OSGi IoT Demo and Contest being held from November 3-5, 2015. Key points include:
- An SDK and contest is being held for developers to create train and track manager bundles using OSGi and IoT. Prizes will be awarded.
- The demo uses LEGO trains on customized hardware and circuits to demonstrate how OSGi enables integration of IoT devices and cloud/edge solutions.
- Software components include a Track Manager running in the cloud that controls switches and signals, and Train Managers on Raspberry Pis that navigate trains along the track. An emulator is provided.
Webinar: Enabling Microservices with Containers, Orchestration, and MongoDB
Want to try out MongoDB on your laptop? Execute a single command and you have a lightweight, self-contained sandbox; another command removes all trace when you're done. Need an identical copy of your application stack in multiple environments? Build your own container image and then your entire development, test, operations, and support teams can launch an identical clone environment.
Containers are revolutionizing the entire software lifecycle: from the earliest technical experiments and proofs of concept through development, test, deployment, and support. Orchestration tools manage how multiple containers are created, upgraded and made highly available. Orchestration also controls how containers are connected to build sophisticated applications from multiple, microservice containers.
This webinar introduces the concepts behind containers and orchestration, then explains the available technologies and how to use them with MongoDB. Finally, you will see a demonstration of exactly how to create a MongoDB replica set on Docker and Kubernetes within the Google Cloud.
OpenNMS - Jeff Gehlbach - ManageIQ Design Summit 2016
The document discusses how OpenNMS and ManageIQ could work together in an integrated network management platform. OpenNMS currently handles network monitoring and fault management, while ManageIQ focuses on cloud and virtual infrastructure management. The presenter proposes ways the two could share provisioning data and integrate their capabilities to provide a more holistic view of both physical and virtual infrastructure management.
Adding Modularity Afterward with Embedded OSGi
Many useful software products are started with tightly coupled “spaghetti” code that just works. As lines of code and complexity increase, teams often struggle to make modifications and add new features without impacting the entire application. As a result, previously successful applications start missing dates and suffering from degrading quality. OSGi can help by introducing a modular design that decouples the architecture, separates concerns, and manages dependencies. Unfortunately it often takes a few missed dates before a team realizes how important modularity is. Don’t let your existing product become a victim of its own success. Learn how to introduce modularity to existing software projects using Apache Felix. Discover how your application can evolve into a pluggable standards driven framework. It’s never too late to reap the benefits of modularity!
Building a Scalable Web Crawler with Hadoop
Building a Scalable Web Crawler with Hadoop by Ahad Rana from CommonCrawl
Ahad Rana, engineer at CommonCrawl, will go over CommonCrawl’s extensive use of Hadoop to fulfill their mission of building an open, and accessible Web-Scale crawl. He will discuss their Hadoop data processing pipeline, including their PageRank implementation, describe techniques they use to optimize Hadoop, discuss the design of their URL Metadata service, and conclude with details on how you can leverage the crawl (using Hadoop) today.
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OSGi ecosystems compared on Apache Karaf - Christian Schneider
OSGi ecosystems compared on Apache Karaf - Christian Schneider
The Rise of Microservices - Containers and Orchestration
The Rise of Microservices - Containers and Orchestration
Apache Karaf - Building OSGi applications on Apache Karaf - T Frank & A Grzesik
Apache Karaf - Building OSGi applications on Apache Karaf - T Frank & A Grzesik
Modular Java applications with OSGi on Apache Karaf
Modular Java applications with OSGi on Apache Karaf
The OSGi Service Platform in Integrated Management Environments - Cristina Di...
The OSGi Service Platform in Integrated Management Environments - Cristina Di...
WebSockets and Equinox OSGi in a Servlet Container - Nedelcho Delchev
WebSockets and Equinox OSGi in a Servlet Container - Nedelcho Delchev
Webinar: Enabling Microservices with Containers, Orchestration, and MongoDB
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OpenNMS - Jeff Gehlbach - ManageIQ Design Summit 2016
OpenNMS - Jeff Gehlbach - ManageIQ Design Summit 2016
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Bringing it all together
Melissa McKay is an advocate for unconference events and discusses the simple rules that maximize their value: whoever attends are the right people, timing is flexible, accepting what happens, location doesn't matter, and sessions end naturally. She summarizes an unconference as allowing people who care about a topic to self-organize discussions without traditional meeting controls. The document then provides links to various unconference events organized by McKay.
Distributing OSGi
This document discusses distributing OSGi applications across multiple nodes. It describes how the OSGi architecture provides a collaborative service-oriented architecture model within a single Java virtual machine. It then explains how the Distributed OSGi specification allows OSGi services to publish themselves and discover services outside their own runtime, maintaining the OSGi service programming model. The document provides examples of how services can invoke each other across OSGi runtimes. It also describes responsibilities of the DistributionProvider and Discovery services and how service registry hooks can be used. Finally, it outlines a demo using Terracotta middleware to cluster services across OSGi runtimes.
Stackato v3
My Stackato presentation given to the CopenhagenJS user group. Basic examples were implemented in Node.
More information available at: https://logiclab.jira.com/wiki/display/OPEN/Stackato
Stackato v5
Stackato presentation done at the Nordic Perl Workshop 2012 in Stockholm, Sweden
More information available at: https://logiclab.jira.com/wiki/display/OPEN/Stackato
Stackato
Presentation of ActiveStates micro-cloud solution Stackato at Open Source Days 2012.
Stackato is a cloud solution from renowned ActiveState. It is based on the Open Source CloudFoundry and offers a serious cloud solution for Perl programmers, but also supports Python, Ruby, Node.js, PHP, Clojure and Java.
Stackato is very strong in the private PaaS area, but do also support as public PaaS and deployment onto Amazon's EC2.
The presentation will cover basic use of Stackato and the reason for using a PaaS, public as private. Stackato can also be used as a micro-cloud for developers supporting vSphere, VMware Fusion, Parallels and VirtualBox.
Stackato is currently in public beta, but it is already quite impressive in both features and tools. Stackato is not Open Source, but CloudFoundry is and Stackato offers a magnificent platform for deployment of Open Source projects, sites and services.
ActiveState has committed to keeping the micro-cloud solution free so it offers an exciting capability and extension to the developers toolbox and toolchain.
More information available at: https://logiclab.jira.com/wiki/display/OPEN/Stackato
Stackato v6
Stackato is a PaaS cloud platform from ActiveState that allows developers to easily deploy applications to the cloud. It supports multiple languages including Perl, Ruby, and JavaScript. The presentation demonstrated deploying simple Perl apps to Stackato using the Mojolicious framework. Key benefits of Stackato include minimal differences between development and production environments, one-click deployments, and allowing developers to manage infrastructure. ActiveState is very open and provides documentation, examples, and a community forum to support Stackato users.
Andrea Di Persio
1) The document discusses a presentation about Go and microservices given by Andrea Di Persio, a backend engineer at SoundCloud.
2) It covers an introduction to Go as a programming language, how SoundCloud uses Go and microservices in their infrastructure and applications, and how SoundCloud implements microservices using Go.
3) Some benefits of using Go and microservices at SoundCloud include isolated services that are easier to reason about and deploy independently while still being able to experiment and take ownership of specific domains.
What's new in the OSGi Enterprise Release 5.0
The OSGi R5 Enterprise release is available now from www.osgi.org (at this moment as a draft, final soon). This presentation walks through what's new in this specification, what to use it for and where to get it.
Stackato v2
Presentation of ActiveState Stackato to Copenhagen Ruby Brigade
More information available at: https://logiclab.jira.com/wiki/display/OPEN/Stackato
Stackato v4
Stackato is a Platform as a Service (PaaS) cloud computing product from ActiveState that allows developers to easily deploy applications and services written in languages like Perl, Ruby, and JavaScript to public and private clouds. The presenter evaluates Stackato based on their experience, demonstrating how to deploy a simple "Hello World" Perl application using Mojolicious and exploring Stackato's management console, application updating process, and built-in app store. They conclude that Stackato provides benefits like easy access to platforms and frameworks with minimal differences between development and production.
MVP & Startup, with OpenSource Software and Microsoft Azure
Test a startup's business model quickly is very important, as doing it minimizing risks and investments. In this talk I will discuss some experiments we did (that used open source tools, Microsoft Azure and Lean Startup methodologies) to validate our business hypothesis.
Integration in the age of DevOps
In an increasingly competitive marketplace, speed and business agility are paramount. And integration between customer-facing systems and back-end applications is more crucial than ever.
At this event, you'll learn how open source software built by communities, like Apache Camel, Docker, Kubernetes, OpenShift Origin, and Fabric8, can help organizations integrate services and establish effective continuous integration and delivery (CI/CD) pipelines.
.Net Microservices with Event Sourcing, CQRS, Docker and... Windows Server 20...
Good technical practices you can follow with (micro)services but can be applied to almost anything: discovery (microphone/consul), security, resilience (polly), composition, ssecurity (jwt/oauth2)... And then an example with a CQRS application, and how docker can be used in Windows 2016. Lastly a brief summary of what Service Fabric is and its programming models.
JAX 2014 - The PaaS to a better IT architecture.
This presentation gives an overview on how Platform as a Service technology can help you to become an IT manufacturer with highly integrated and greatly automated processes that drive your business forward.
This presentation was held at (W-) JAX 2014 by Jürgen Hoffmann (Red Hat) and Sebastian Faulhaber (Red Hat).
Kuby, ActiveDeployment for Rails Apps
Cameron Dutro introduces Kuby, which is an ActiveDeployment tool for Rails applications that packages and deploys apps into a Kubernetes cluster. Kuby aims to make deployment easy with minimal configuration, while also supporting major cloud providers and being native to Rails. It handles tasks like provisioning databases and acquiring SSL certificates automatically. The talk outlines the history of deployment methods and why Kubernetes provides an extensible platform. Kuby builds on concepts from tools like Capistrano but abstracts more details by treating servers collectively in a Kubernetes cluster.
Devops continuousintegration and deployment onaws puttingmoneybackintoyourmis...
Devops continuousintegration and deployment onaws puttingmoneybackintoyourmis...Emerson Eduardo Rodrigues Von Staffen
DevOps, Continuous Integration & Deployment on AWS discusses practices for software development on AWS including DevOps, continuous integration, continuous delivery, and continuous deployment. It provides an overview of AWS services that can be used at different stages of the software development lifecycle such as CodeCommit for source control, CodePipeline for release automation, and CodeDeploy for deployment. National Novel Writing Month (NaNoWriMo) maintains its websites and services on AWS to support its annual writing challenge. It migrated to AWS to improve uptime and scalability. Its future goals include porting older sites to Rails, using Amazon SES for email, load balancing with ELB, implementing auto scaling, and using services like CodeDeploy, SNSDevOps, Continuous Integration and Deployment on AWS: Putting Money Back into...
Organizations around the globe are leveraging the cloud to accomplish world-changing missions. This session will address how AWS can help organizations put more money toward their mission and scale outreach and operations to achieve more with less. Hear some of AWS’s most advanced customers on how their organizations handle DevOps, continuous integration and deployment. Learn how these practices allow them to rapidly develop, iterate, test and deploy highly-scalable web applications and core operational systems on AWS. The discussion will focus on best practices, lessons learned, and the specific technologies and services they use.
OSGi DevCon 2009 Review
This document summarizes the OSGi DevCon 2009 conference. The key themes discussed were: increased ubiquity and adoption of OSGi, the use of OSGi for enterprise applications and services, distributed OSGi capabilities, tooling updates, and modernizing OSGi APIs. Distributed OSGi allows services to be published and accessed remotely in a transparent manner between JVMs. The Enterprise Profile and tools like Blueprint provide integration with Java EE. There was also discussion of JSR 294 to add module support to Java and the relationship with OSGi and Jigsaw.
Building Cloud Native Software
To really take advantage of cloud, software must be optimized to run in the cloud. This presentation explores what it means to be "Cloud Native" and looks at a real open source project that has built a complete Cloud Native platform. Cloud is not just a better way to run existing software, there are core enhancements that need to be made to software to enable it to run really effectively in a cloud environment. Often the first thought is about massive scalability, but actually there are other key enablers: multi-tenancy, metering, dynamic distribution, self-service and incremental deployment and testability. This presentation explores these enablers and looks at how an Open Source project (Carbon) built on Apache technology was re-built to be cloud native. The presentation will cover not just the concepts but dive into the practical issues in making a cloud native system and also explore which Apache technologies can help along the way.
Similar to Scaling and Orchestrating Microservices with OSGi - N Bartlett (20)
MVP & Startup, with OpenSource Software and Microsoft Azure
MVP & Startup, with OpenSource Software and Microsoft Azure
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.Net Microservices with Event Sourcing, CQRS, Docker and... Windows Server 20...
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Devops continuousintegration and deployment onaws puttingmoneybackintoyourmis...
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DevOps, Continuous Integration and Deployment on AWS: Putting Money Back into...
More from mfrancis
Eclipse Modeling Framework and plain OSGi the easy way - Mark Hoffman (Data I...
OSGi Community Event 2018 Presentation by Mark Hoffmann (Data In Motion)
Abstract: This talk will show you how the EMF framework can be used in pure OSGi environments other than Equinox. We will introduce you into free configurable ResourceSets and the principle of a ResourceSetFactory. This enables your application to have multiple tenants with different model visibillity. The profit of OSGi services provides a behavior where even models can come and go all the time.
We will also give you look inside, how easy it is to extend the default code generation process of EMF to generate OSGi service component that handle the model registration in an OSGi way.
OSGi and Java 9+ - BJ Hargrave (IBM)
OSGi Community Event 2018 Presentation by BJ Hargrave (IBM)
Abstract: Java 9 introduced the Java Platform Module System (JPMS) as a way to modularize the Java platform and it can be also be used by developers to modularize their own applications, although JPMS lack a number of important features for software running on the Java platform.
As people look to support the latest versions of the Java platform, changes introduced in Java 9 related to JPMS led to the needs for some features in the OSGi Core specification. OSGi framework implementations like Eclipse Equinox and Apache Felix and tools like Bnd were updated to support these new features.
This session will explore the Java 9+ support added to OSGi Core R7 and Bnd and help you learn how to navigate the world of Java 9+ and OSGi.
Simplify Web UX Coding using OSGi Modularity Magic - Paul Fraser (A2Z Living)
This document discusses simplifying web UX using OSGi modularity. It mentions coding tasks becoming quicker and easier using OSGi and controlling OSGi DS component instances. It provides links to GitHub pages for the Open Security Controller project and a blog post about controlling OSGi components. It concludes by thanking the audience and reminding them they are being watched.
OSGi for the data centre - Connecting OSGi to Kubernetes - Frank Lyaruu
This document discusses connecting the OSGi framework to Kubernetes for managing applications in container-based environments. It raises questions about building systems that can update while running and whether years spent on this have been wasted. It also briefly mentions a demo of OSGi and Kubernetes integration and asks why a load balancer wouldn't work instead. The document calls for feedback on sessions and ideas about OSGi, Kubernetes, immutable vs mutable systems, and J2EE versus OSGi.
Remote Management and Monitoring of Distributed OSGi Applications - Tim Verbe...
OSGi Community Event 2018 Presentation by Tim Verbelen (imec) & Jan S. Rellermeyer (TU Delft)
Abstract: With the proliferation of cloud computing and more recently mobile and edge computing, there is a increasing demand to build flexible and robust distributed applications. The OSGi service and module technology is a key enabler for such deployment. Recent additions to the OSGi standards provide a set of services that provide interfaces for managing distributed instances of OSGi frameworks. The REST Service (added in R6 compendium) offers an easy and language-independent way to manage bundes and introspect services from outside the network. The Cluster Information specifications (added in R7 compendium) provide means for applications to manage and monitor the deployment intrinsically, building on top of the Remote Service specifications. In the Eclipse Concierge project, we have provided the reference implementations of both specifications. In this talk, we will show how the services can be used to build distributed applications that benefit from the OSGi modularity.
OSGi with Docker - a powerful way to develop Java systems - Udo Hafermann (So...
OSGi Community Event 2018 Presentation by Udo Hafermann (Software AG)
Abstract: In this talk we will share our experiences in developing a tool chain from classes, to bundles, to containers, to systems.
OSGi and Docker come together in a compelling way where the former provides modularity "in the small" and the latter "modularity in the large". We discover how the unique characteristics of OSGi enable a smooth transition from small to large.
The resulting environment enables developers to grow distributed systems on their local machine and test them with plain JUnit at all levels of granularity - classes to systems. During development OSGi enables the tool chain to update the system without container rebuilds.
While an increase in productivity is one benefit of such an environment, an arguably more important benefit is the way it empowers developers to gain new insights.
A real world use case with OSGi R7 - Jurgen Albert (Data In Motion Consulting...
OSGi Community Event 2018 Presentation by Jurgen Albert (Data In Motion Consulting GmbH)
Abstract: OSGi is often conceived as a tool to write efficient Java Applications for resource limited Devices or If resources are a real issue in complex applications. On the other hand Microservices became the buzzword of the cloud and is often implemented using Spring or other Programming languages. OSGi carries the concept of microservices in its core and is therefore much better suited to the task then most other approaches. This talk will show you how a service can be built with a real-worldish use case, leveraging the power of OSGi R7. It will show the combined usage of PushsStreams, the JaxRS Whiteboard, the configurator, remote deployment and a lot of the other cool things OSGi has to offer.
OSGi Feature Model - Where Art Thou - David Bosschaert (Adobe)
OSGi Community Event 2018 Presentation by David Bosschaert (Adobe)
Abstract: OSGi lends itself well to develop extensible applications assembled from reusable modules, where a set of bundles together with a set of configurations deployed to a provisioned OSGi framework is the application.
While this works very well for the originally intended use-cases, maintaining and building large applications developed by multiple teams often requires to assemble multiple larger components for which there is limited support in OSGi as of today. This is especially true in cases where multiple groups of bundles, configuration, metadata, and other artifacts need to be combined.
In this talk we will introduce you to OSGi RFP-188, named OSGi Features, which defines the requirements on providing a solution. We'll establish a shared understanding of the problem space and how it relates to already available mechanisms in OSGi (like e.g. subsystems, deploymentadmin, startlevels, etc.) and will subsequently, review it in the context of some of the current (open source) solutions like Apache Karaf Features and Apache Sling Features and Bnd.
Migrating from PDE to Bndtools in Practice - Amit Kumar Mondal (Deutsche Tele...
OSGi Community Event 2018 Presentation by Amit Kumar Mondal (Deutsche Telekom AG) & Jochen Hiller (Deutsche Telekom AG)
Abstract: QIVICON is an Eclipse SmartHome based solution from Deutsche Telekom AG. It utilises OSGi to provide a modular Java runtime.
Since the beginning, QIVICON leveraged Eclipse PDE with Maven & Eclipse Tycho as its build technology but over the time, the complexity increased. It became hard to get an overview and manage the runtime and build dependencies. Especially maintaining target configurations for IDE and CI/CD build, having different embedded gateways for installation increased complexity significantly.
Bndtools is the 'swiss army knife' in the context of OSGi development since it takes the nitty-gritty pains and loads off the developer's chest. And that's why we decided to avail the benefits of Bndtools.
But, many other OSGi-based projects still cannot avail the benefits as they are very tightly coupled with Eclipse PDE. Want to make a switch from your existing PDE source base to Bndtools? This talk would give you an overview to proceed towards this.
We would like to further demonstrate in this talk how to set up a Bndtools workspace from an existing PDE workspace, convert all current projects to Bnd projects and embrace the OSGi-way of developing bundles.
Since QIVICON containing more than 350 projects utilised this solution to move to a higher modularity maturity level, this talk would, therefore, outline the pros, cons and the learnings using Bndtools in such a big OSGi project for embedded development.
OSGi CDI Integration Specification - Ray Augé (Liferay)
OSGi Community Event 2018 Presentation by Ray Augé (Liferay)
Abstract: This talk discusses the upcoming OSGi CDI Integration Specification and demonstrates common usage patterns and its component model that brings OSGi dynamics; like services and configuration, to CDI and provides for an ecosystem of CDI portable extentions.
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SMA is an energy equipment supplier that was seeking a solution for cross-sector energy management. They evaluated OSGi and decided to develop their own framework based on OSGi. They encountered several problems initially but overcame them by improving API design, avoiding dependencies, and using helper classes. They have now successfully applied OSGi in their products and find that it defines clean module deployment and versioning while supporting dynamic updates.
Improved developer productivity thanks to Maven and OSGi - Lukasz Dywicki (Co...
OSGi Community Event 2018 Presentation by Lukasz Dywicki (Code-House)
Abstract: During this short presentation I will revisit existing mechanisms and approach towards OSGi and JEE development. I will show how many manual steps can be avoided and how to maintain project in effective manner. I will try to find a balance between execution environment requirements and programmer happines at same time.
I believe that OSGi and Eclipse ecosystem experience troubles gaining people from outside for few reasons. Beside overall impression of OSGi complexity there is equally old and invalid complain about quaility of developer tooling. Since invention of BND development experience can be really pleasant and independent of text editor/IDE preferences. Sadly lots of people still rely on former experiences spreading black/bad PR. I would like to clarify their point.
After this presentation attendees will learn:
How to use Maven to build OSGi projects (without Tycho).
How to automate manual tasks.
How to build custom software distributions with Maven artifacts and run it with Apache Karaf.
That OSGi development doesn't differ much from regular day-to-day usage of application servers or microservice runtimes.
This talk is intended for people who know basics of OSGi as it will show few basic technics towards better developer productivity.
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OSGi Community Event 2018 Presentation by Christer Larsson (Makewave)
Abstract: OSGi was originally designed for Smart Homes and Residential Gateways almost 20 years ago.
This talk will present how the OSGi specifications have evolved over the years, and how you today, in 2018, design an OSGi based Smart Home System.
A real world use case of a Swedish Smart Home start-up company will be used to illustrate different design principles and how OSGi remains as relevant today as it was when it started.
Popular patterns revisited on OSGi - Christian Schneider (Adobe)
This document discusses how various software design patterns can be applied within the OSGi runtime environment. It describes patterns like Observer/Listener, OSGi Whiteboard, Dependency Injection, Circuit Breaker, and Domain-Driven Design and how they differ or are adapted when used with OSGi. For example, the OSGi Whiteboard pattern allows services and listeners to be loosely coupled without direct dependencies, and OSGi's declarative services specification provides a way to perform dependency injection and manage component lifecycles. The document argues that applying patterns like having microservices per bounded context can help match the original ideas of microservices while minimizing remote communication when using OSGi.
Integrating SLF4J and the new OSGi LogService 1.4 - BJ Hargrave (IBM)
OSGi Community Event 2018 Presentation by BJ Hargrave (IBM)
Abstract: OSGi Compendium R7 provides a major update to the OSGi LogService specification. A new logging API is added which supports logging levels and dynamic logging administration. A new Push Stream-based means of receiving log entries is also added. But it is quite often the case you need to use other code such as open source projects which are using slf4j for their logging API. This session will explore the new OSGi LogService changes and how you can integrate code using both slf4j logging and OSGi LogService logging.
OSG(a)i: because AI needs a runtime - Tim Verbelen (imec)
OSGi Community Event 2018 Presentation by Tim Verbelen (imec)
Abstract: Nowadays AI is reaching new heights on the hype cycle, especially due to recent advances in deep learning techniques. A lot of deep learning frameworks exist for creating and training deep neural networks, the most popular ones being PyTorch and TensorFlow. However, how to integrate, deploy and manage these neural networks in complex software systems is often overlooked. In this talk we show how OSGi can be used as a modular runtime for deep learning models. We embed those models inside OSGi bundles, and use the extender pattern to make these available as OSGi services. You can then use your favorite OSGi specs such as DS and PushStreams to integrate these into your application.
Flying to Jupiter with OSGi - Tony Walsh (ESA) & Hristo Indzhov (Telespazio V...
OSGi Community Event 2018 Presentation by Tony Walsh (ESA) & Hristo Indzhov (Telespazio Vega)
Abstract: The European Space Operations Centre (ESOC) is the main operations center for the European Space Agency (ESA), operating a number of earth observation and scientific missions. Monitoring and control functions needed by spacecraft operators are provided by software systems which are reused across missions, but tailored and extended for mission specific needs. The current generation of monitoring and control systems are becoming obsolete and a European wide initiative called the European Ground Systems Common Core (EGS-CC) (http://www.egscc.esa.int) has been started to develop the next generation.
This talk will explain why OSGi was chosen and how it is used in the development of next generation of monitoring and control software. It will describe how OSGi provides the necessary framework that enables the software to be extended for the different space systems it is expected to support. The overall software architecture will be discussed, some of the challenges faced and the benefits gained by using OSGi. The first target mission for the system is JUICE (http://sci.esa.int/juice) which will explore the moons of Jupiter and which is scheduled for launch in 2022.
MicroProfile, OSGi was meant for this - Ray Auge (Liferay)
OSGi Community Event 2018 Presentation by Ray Augé (Liferay)
Abstract: The craze is fully on. The past couple of years have seem micro services grow from next _flava_ to fully consuming of the software industry. The Eclipse micorprofile.io project is tackling the issue putting common usage patterns together over a foundation of CDI. What better assembly driver is there than OSGi to put it all together. This talk will demonstrate building your own MicroProfile using OSGi and the OSGi enRoute packaging model.
Prototyping IoT systems with a hybrid OSGi & Node-RED platform - Bruce Jackso...
OSGi Community Event 2018 Presentation by Bruce Jackson (Myriad)
Abstract: Node-RED is often used as a protyping tool for IoT systems. However, there are also a large number of OSGi components that have already been built to interface to devices, sensors and systems. In this talk I will show how two completely different runtime environments (OSGi and Node-RED) can be combined into a single platform for prototyping (and more) combining the strengths of both languages and systems.
Being able to quickly and simply prototype IoT application is extremely useful, and to this end many people have adopted Node-Red, a Node.js based runtime with extensive support for plugins to interface to various IoT hardware and protocols. However, this requires these services/protocols to be developed in Javascript, and there is already a significant body of code developed in Java/OSGi that it would be desirable to re-use.
The talk will explain how it is possible to:
Create and manage a Node-Red runtime from within an OSGi bundle
Share OSGi components and object into the Node-Red runtime
Interact and build Node-Red flows that exchange data and call methods between Node.js and OSGi
This is obviously useful for the original purpose: prototyping IoT systems, but also demonstrates some interesting techniques for bridging between different languages and runtimes.
How to connect your OSGi application - Dirk Fauth (Bosch)
OSGi Community Event 2018 Presentation by Dirk Fauth (Bosch)
Abstract: In todays connected world the requirement to connect applications across network boundaries has become a common requirement. With OSGi there are several ways to accomplish this, as there are different specifications to achieve this. In this talk we will look at some of these specifications to show what options there are and which might fit your requirements. Starting from an architecture that makes use of the HTTP Whiteboard pattern, over Remote Services to finally showing the usage of the JAX-RS Whiteboard specification introduced with R7. We will show the general usage of these specifications and explaining the advantages and disadvantages of each solution.
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Eclipse Modeling Framework and plain OSGi the easy way - Mark Hoffman (Data I...
Eclipse Modeling Framework and plain OSGi the easy way - Mark Hoffman (Data I...
Simplify Web UX Coding using OSGi Modularity Magic - Paul Fraser (A2Z Living)
Simplify Web UX Coding using OSGi Modularity Magic - Paul Fraser (A2Z Living)
OSGi for the data centre - Connecting OSGi to Kubernetes - Frank Lyaruu
OSGi for the data centre - Connecting OSGi to Kubernetes - Frank Lyaruu
Remote Management and Monitoring of Distributed OSGi Applications - Tim Verbe...
Remote Management and Monitoring of Distributed OSGi Applications - Tim Verbe...
OSGi with Docker - a powerful way to develop Java systems - Udo Hafermann (So...
OSGi with Docker - a powerful way to develop Java systems - Udo Hafermann (So...
A real world use case with OSGi R7 - Jurgen Albert (Data In Motion Consulting...
A real world use case with OSGi R7 - Jurgen Albert (Data In Motion Consulting...
OSGi Feature Model - Where Art Thou - David Bosschaert (Adobe)
OSGi Feature Model - Where Art Thou - David Bosschaert (Adobe)
Migrating from PDE to Bndtools in Practice - Amit Kumar Mondal (Deutsche Tele...
Migrating from PDE to Bndtools in Practice - Amit Kumar Mondal (Deutsche Tele...
OSGi CDI Integration Specification - Ray Augé (Liferay)
OSGi CDI Integration Specification - Ray Augé (Liferay)
How OSGi drives cross-sector energy management - Jörn Tümmler (SMA Solar Tech...
How OSGi drives cross-sector energy management - Jörn Tümmler (SMA Solar Tech...
Improved developer productivity thanks to Maven and OSGi - Lukasz Dywicki (Co...
Improved developer productivity thanks to Maven and OSGi - Lukasz Dywicki (Co...
It Was Twenty Years Ago Today - Building an OSGi based Smart Home System - Ch...
It Was Twenty Years Ago Today - Building an OSGi based Smart Home System - Ch...
Popular patterns revisited on OSGi - Christian Schneider (Adobe)
Popular patterns revisited on OSGi - Christian Schneider (Adobe)
Integrating SLF4J and the new OSGi LogService 1.4 - BJ Hargrave (IBM)
Integrating SLF4J and the new OSGi LogService 1.4 - BJ Hargrave (IBM)
OSG(a)i: because AI needs a runtime - Tim Verbelen (imec)
OSG(a)i: because AI needs a runtime - Tim Verbelen (imec)
Flying to Jupiter with OSGi - Tony Walsh (ESA) & Hristo Indzhov (Telespazio V...
Flying to Jupiter with OSGi - Tony Walsh (ESA) & Hristo Indzhov (Telespazio V...
MicroProfile, OSGi was meant for this - Ray Auge (Liferay)
MicroProfile, OSGi was meant for this - Ray Auge (Liferay)
Prototyping IoT systems with a hybrid OSGi & Node-RED platform - Bruce Jackso...
Prototyping IoT systems with a hybrid OSGi & Node-RED platform - Bruce Jackso...
How to connect your OSGi application - Dirk Fauth (Bosch)
How to connect your OSGi application - Dirk Fauth (Bosch)
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Scaling and Orchestrating Microservices with OSGi - N Bartlett
- 1. Scaling and Orchestrating Microservices with OSGi … OR: How to Write a Session Title That Will Get Your Talk Accepted at Any Conference Neil Bartlett — Paremus Ltd
- 2. OSGi is From the Future • Runtime resolve/assemble since 2005 • Software component repositories since 2003 • Continuous delivery since 1999 • Microservices since 1998 image credit: Sam Howzit (flickr.com/photos/aloha75/)
- 3. “The term ‘microservice’ was discussed at a workshop of software architects near Venice in May, 2011 to describe what the participants saw as a common architectural style that many of them had been recently exploring.” — Martin Fowler, March 2014 http://martinfowler.com/articles/microservices.html
- 4. “MICROSERVICES” YOU KEEP USING THAT WORD. I DO NOT THINK IT MEANS WHAT YOU THINK IT MEANS.
- 5. “What I am promoting is the idea of μServices, the concepts of an OSGi service as a design primitive.” — Peter Kriens, March 2010 http://blog.osgi.org/2010/03/services.html
- 6. API api api api Service Consumer Provider
- 7. “Fowler” Microservices OSGi Services “an approach to developing a single application as a suite of small services" ✔ “each running in its own process” ✘ “communicating with lightweight mechanisms” ✔ “built around business capabilities” ✔ “independently deployable by fully automated deployment machinery” ✔ “bare mininum of centralized management of these services” ✔ “may be written in different programming languages” ✔* “use different data storage technologies” ✔ * JVM languages only, for now
- 8. Why Separate Processes? • “One main reason … is that services are independently deployable.” … like OSGi Bundles • “you can expect many single service changes to only require that service to be redeployed.” … like OSGi Bundles • “Another consequence of using services as components is a more explicit component interface.” … like OSGi Services • “Often it's only documentation and discipline that prevents clients breaking a component's encapsulation.” … whereas OSGi enforces encapsulation
- 9. Isolation is a Continuum COST Java Classpath OSGi Services OS Process Docker VM Physical Box Data Centre local minima (sweet spots) ← Weaker ISOLATION Stronger →
- 10. Java OSGi Process Docker VM Physical Box Data Centre Services and Reuse Crash Isolation, Alternate Langs CPU/Mem Quotas Alternate OS Power Fail, Whole OS Crash Disaster Resilience
- 11. Scaling
- 12. Horizontal Process Process Process
- 13. Horizontal Process Process Process
- 14. When to Scale? • Q: “Should I expose this as a service for scaleability?” • Agilist Answer: “No… YAGNI*” *You Aren’t Gonna Need It
- 15. When to Scale (OSGi Style) Provider Consumer Config Switch Provider Consumer
- 16. OSGi Remote Services • Services can be selected for remoting post facto. • Small code change or pure config change. • Respond to rapidly changing demand. • TGTBT? In practice, devs should at least factor in the possibility of remoting.
- 17. Demo
- 18. Orchestrating
- 19. What Should I Run?? Where Should I Run It?? Where Is Everybody??
- 20. Local Discovery (Easy) Process Process Process
- 21. Remote Discovery (Hrrrmm) Process Process ?
- 22. State of the Art • Install X on this box, install Y on that box, etc… • Tell X where Y is (static config) • Tell Y where X is (static config)
- 23. OSGi RSA Discovery • Advertise / Discover using Pluggable Impls • E.g.: Bonjour, SLP, DDS, Gossip, ZooKeeper… • Dynamic Availability / Presence • Plug and Play!
- 24. Even for Non-Services… REST Provider Consumer Endpoint uri=http://<host>:<port>/<alias> HTTP Comunication
- 25. Even for Non-Java Services Mosquitto Packager Consumer Endpoint uri=mqtt://<host>:<port> MQTT Mosquitto (MQTT) Process
- 26. … and Non-Java Consumers REST Provider REST Provider NGinx Packager uri=http://<host>:<port>/<alias> NGinx Process REST Provider
- 27. Oh, and Docker Mosquitto Packager Consumer uri=mqtt://<host>:<port> MQTT Mosquitto (MQTT) Container Prosyst mPRM See: OSGi Alliance IoT Demo and Hackathon Packager Prosyst mPRM Container uri=mprm://<host>:<port> version=5.3.0 mPRM (custom HTTP)
- 28. What, Where, How Many? • OSGi Capabilities and Requirements — a generic software pattern. • Use to describe native executables, Docker images… • Machine capabilities define “where” • Policy defines “how many”.
- 29. Demo
- 30. Technology Used • Paremus RSA — implementation of OSGi Remote Services Admin specification • Paremus Packager — open source API • Paremus Service Fabric — secret sauce ;-)
- 31. Questions?