Test code needs to be as clean and as simple as production code. However, when writing tests there is the ever present temptation to not be as disciplined as you should be. As a result, test code quality gradually decays over time and becomes difficult to maintain and brittle. For example, a common problem is bloated and duplicated test fixture logic. Another problem is tests that are written at too low-level, which makes them difficult to understand and change. If you are not careful, you run the risk of your test code falling into disrepair and being ignored, which defeats the purpose of having tests.
In this talk you will learn how to make tests easier to develop and maintain by using a coding style that abstracts away the details and eliminates code duplication. We describe how to simplify test fixtures by designing domain objects with fluent interfaces, and centralizing test object creation in object mothers. You will also learn how to simplify verification logic with custom assertions. We describe how to improve web tests by writing them in terms of test utility methods, instead of calling Selenium RC directly. These utility methods form an internal domain-specific language that hides low-level details, such as mouse and button clicks.
Albendazole Mechanism of Action & Pharmacokinetics ExplainedSUMIT SHARMA
We take albendazole medicine for deworming, get relief and forget. Many people have a curiosity to know the fate of the drug. Albendazole works on the genetic material of parasites.
The principal mechanism of action of albendazole is inhibiting polymerization and the cell division process of parasites.
Here, I have made an easy guide to understanding the albendazole mechanism of action (moa), pharmacokinetics, side effects, and contraindications.
In this post, you will learn how albendazole works and how the body reacts in response to albendazole.
Albendazole Mechanism of Action & Pharmacokinetics ExplainedSUMIT SHARMA
We take albendazole medicine for deworming, get relief and forget. Many people have a curiosity to know the fate of the drug. Albendazole works on the genetic material of parasites.
The principal mechanism of action of albendazole is inhibiting polymerization and the cell division process of parasites.
Here, I have made an easy guide to understanding the albendazole mechanism of action (moa), pharmacokinetics, side effects, and contraindications.
In this post, you will learn how albendazole works and how the body reacts in response to albendazole.
Building microservices with Scala, functional domain models and Spring Boot (...Chris Richardson
In this talk you will learn about a modern way of designing applications that’s very different from the traditional approach of building monolithic applications that persist mutable domain objects in a relational database.We will talk about the microservice architecture, it’s benefits and drawbacks and how Spring Boot can help. You will learn about implementing business logic using functional, immutable domain models written in Scala. We will describe event sourcing and how it’s an extremely useful persistence mechanism for persisting functional domain objects in a microservices architecture.
Developing and deploying applications with Spring Boot and Docker (@oakjug)Chris Richardson
This presentation was given at Oakjug.
Describes why Spring Boot is an excellent choice for building microservices.
Talks about the various ways that Docker can simplify development and deployment.
Discusses how docker-compose makes the life of a developer easier.
#hacksummit 2016 - event-driven microservices – Events on the outside, on the...Chris Richardson
This is my presentation from #hacksummit 2016
This presentation looks at the importance of events and the role that they play in applications. We describe how events are a key application integration mechanism and how they are used by applications to communicate with the outside world. You will learn how the microservices inside a system can use events to maintain data consistency. We discuss how easy it is to implement both of these mechanisms by developing your core business logic using an event-centric approach known as event sourcing.
Events on the outside, on the inside and at the core (jfokus jfokus2016)Chris Richardson
This is the talk I gave at JFokus 2016 on event-driven microservices.
This presentation looks at the importance of events and the role that they play in applications. We describe how events are a key application integration mechanism and how they are used by applications to communicate with the outside world. You will learn how the microservices inside a system can use events to maintain data consistency. We discuss how easy it is to implement both of these mechanisms by developing your core business logic using an event-centric approach known as event sourcing.
Developing event-driven microservices with event sourcing and CQRS (Shanghai)Chris Richardson
This is a talk I gave in Shanghai on July 4th 2016
In a microservices architecture, each service has its own database. While this ensures that services are loosely coupled it creates a problem: how do you maintain consistency across services without using 2PC? In this talk you will learn more about these issues and how to solve them by using an event-driven architecture. We will describe how event sourcing and Command Query Responsibility Separation (CQRS) are a great way to realize an event-driven architecture. You will learn about a simple yet powerful approach for building, modern, scalable applications.
Microservices pattern language (microxchg microxchg2016)Chris Richardson
My talk from http://microxchg.io/2016/index.html.
Here is the video - https://www.youtube.com/watch?v=1mcVQhbkA2U
When architecting an enterprise Java application, you need to choose between the traditional monolithic architecture consisting of a single large WAR file, or the more fashionable microservices architecture consisting of many smaller services. But rather than blindly picking the familiar or the fashionable, it’s important to remember what Fred Books said almost 30 years ago: there are no silver bullets in software. Every architectural decision has both benefits and drawbacks. Whether the benefits of one approach outweigh the drawbacks greatly depends upon the context of your particular project. Moreover, even if you adopt the microservices architecture, you must still make numerous other design decisions, each with their own trade-offs.
A software pattern is an ideal way of describing a solution to a problem in a given context along with its tradeoffs. In this presentation, we describe a pattern language for microservices. You will learn about patterns that will help you decide when and how to use microservices vs. a monolithic architecture. We will also describe patterns that solve various problems in a microservice architecture including inter-service communication, service registration and service discovery.
Developing microservices with aggregates (SpringOne platform, #s1p)Chris Richardson
The Domain Model pattern is a great way to develop complex business logic. Unfortunately, a typical domain model is a tangled, birds nest of classes. It can’t be decomposed into microservices. Moreover, business logic often relies on ACID transactions to maintain consistency.
Fortunately, there is a solution to this problem: aggregates. An aggregate is an often overlooked modeling concept from the must read book Domain Driven Design. In this talk you will learn how aggregates enable you to develop business logic for the modern world of microservices and NoSQL. We will describe how to use aggregates to design modular business logic that can be partitioned into microservices. You will learn how aggregates enable you to use eventual consistency instead of ACID. We will describe the design of a microservice that is built using aggregates, and Spring Cloud.
Developing microservices with aggregates (devnexus2017)Chris Richardson
he Domain Model pattern is a great way to develop complex business logic. Unfortunately, a typical domain model is a tangled, birds nest of classes. It can’t be decomposed into microservices. Moreover, business logic often relies on ACID transactions to maintain consistency. Fortunately, there is a solution to this problem: aggregates.
An aggregate is an often overlooked modeling concept from the must read book Domain Driven Design. In this talk you will learn how aggregates enable you to develop business logic for the modern world of microservices and NoSQL. We will describe how to use aggregates to design modular business logic that can be partitioned into microservices. You will learn how aggregates enable you to use eventual consistency instead of ACID. We will describe the design of a microservice that is built using aggregates, and Spring Cloud.
Developing event-driven microservices with event sourcing and CQRS (svcc, sv...Chris Richardson
Modern, cloud-native applications typically use a microservices architecture in conjunction with NoSQL and/or sharded relational databases. However, in order to successfully use this approach you need to solve some distributed data management problems including how to maintain consistency between multiple databases without using 2PC.
In this talk you will learn more about these issues and how to solve them by using an event-driven architecture. We will describe how event sourcing and Command Query Responsibility Segregation (CQRS) are a great way to realize an event-driven architecture. You will learn about a simple yet powerful approach for building, modern, scalable applications.
Traditionally, computer hardware was a scarce, expensive resource. Running performance tests often meant scavenging for machines around the office. Today, however, things are different. With Amazon’s EC2, a cluster of servers is now just a web service call away.
In this presentation you will learn about design and implementation of Cloud Tools, which are a Groovy-based framework for deploying and testing Java EE applications on EC2. This framework provides a simple (internal) DSL for configuring a cluster (database + web container + apache), deploying a web application, and running performance tests using JMeter. You will learn about capabilities of EC2 and how to use it for development and deployment. We describe how we use Amazon S3 to work around EC2's lack of a persistent file system and avoid time-consuming uploads of WAR files. You will also learn how Groovy helped and hindered with the development of the Cloud Tools.
What you can learn from an open-source project with 250 million downloadsDennis Doomen
Providing a high quality library like that doesn't come for free. We've been trying to write code that is clean enough for our contributors, write tests that are self-explanatory, ensure breaking changes are strictly controlled and try to make it easy to use. In this talk, I'd like to share the tools and techniques we have been using. I'll talk about the release strategy, documentation, versioning, naming conventions, code structure, the build pipeline, automated testing, code coverage, API change detection, multi-targeting and more.
In this talk, I'd like to share the tools and techniques we have been using, how they've enriched our day jobs, and how they may do that for you too.
I'll talk about the release strategy, documentation, versioning, naming conventions, code structure, the build pipeline, automated testing, code coverage, API change detection, multi-targeting and more.
5 Habits of High-Velocity Teams Using KubernetesCodefresh
Watch the full webinar here: https://codefresh.io/5-habits-lp/
Sign up for a FREE Codefresh account today: https://codefresh.io/codefresh-signup/
Connecting all the pieces to make zero downtime continuous delivery happen at scale is a challenge. In this webinar, you will see real teams bring all the components together to make high-velocity deployment to Kubernetes scale. Get a hands-on view of the critical steps that go into making container management a scalable process that not only allows teams to delivery faster but with more confidence in the final result
Cloud-Native Fundamentals: Accelerating Development with Continuous IntegrationVMware Tanzu
DevOps. Microservices. Containers. These terms have a lot of buzz for their role in cloud-native application development and operations. But, if you haven't automated your tests and builds with continuous integration (CI), none of them matter.
Continuous integration is the automation of building and testing new code. Development teams that use CI can catch bugs early and often; resulting in code that is always production ready. Compared to manual testing, CI eliminates a lot of toil and improves code quality. At the end of the day, it's those code defects that slip into production that slow down teams and cause apps to fall over.
The journey to continuous integration maturity has some requirements. Join Pivotal's James Ma, product manager for Concourse, and Dormain Drewitz, product marketing to learn about:
- How Test-Driven Development feeds the CI process
- What is different about CI in a cloud-native context
- How to measure progress and success in adopting CI
Dormain is a Senior Director of Product and Customer Marketing with Pivotal. She has published extensively on cloud computing topics for ten years, demystifying the changing requirements of the infrastructure software stack. She’s presented at the Gartner Application Architecture, Development, and Integration Summit; Open Source Summit; Cloud Foundry Summit, and numerous software user events.
James Ma is a product manager at Pivotal and is based out of their office in Toronto, Canada. As a consultant for the Pivotal Labs team, James worked with Fortune 500 companies to hone their agile software development practices and adopt a user-centered approach to product development. He has worked with companies across multiple industries including: mobile e-commerce, finance, heath and hospitality. James is currently a part of the Pivotal Cloud Foundry R&D group and is the product manager for Concourse CI, the continuous "thing do-er".
Presenters : Dormain Drewitz & James Ma, Pivotal
CI/CD Pipelines for Your Infrastructure...as Code!Harvey Bendaña
Continuous Integration and Continuous Delivery helps developers rapidly and reliably release updates for their applications in a standardized and safe manner. The faster you can release new features and fix bugs, the quicker you can innovate and respond to customer needs.
Infrastructure as Code is a practice by where traditional infrastructure management techniques are supplemented and often replaced by using code based tools and software development techniques.
Amazon Web Services provides developer tools that help you define your infrastructure as code as well as continuously iterate on and develop said infrastructure. In this session, we’ll discuss how to build multi-stage pipelines that let you build and test your software defined infrastructure in an automated way using AWS CodeCommit, AWS CodePipeline, AWS CodeBuild, and AWS Cloudformation. We’ll look at how to orchestrate pipelines across multiple AWS accounts in a secure and scalable fashion.
"Different software evolutions from Start till Release in PHP product" Oleksa...Fwdays
Ця розповідь розкриє підходи для вирішення багатьох проблем в PHP проєктах через: None-Breaking change development підхід, cross-stack контракти, Trunk Based development, еволюція з Polyrepo до Monorepo з компонентами на різних технологіях, Boilerplat’и компонентів, різні Architecture View, Continuous Testing & Quality, Infrastructure View, Infrastructure as a code як основний інструмент.
PHPFrameworkDay 2020 - Different software evolutions from Start till Release ...Alexandr Savchenko
https://fwdays.com/en/event/php-fwdays-2020
All of us think about many questions when we start a project, when we already have a product and when we release it. Here are some of them: which architecture and infrastructure to choose? what should be the repository structure? how to make the right evolution from one application to 100 microservices with success product release? how to distribute cross-stack commands as a whole? what development practices to use?
This story will expose approaches to solving these and many other problems in PHP projects through: None-Breaking change development approach, Cross-stack contacts, Trunk Based development, evolution from Polyrepo to Monorepo with components on different technologies, Boilerplates for components, different Architecture Views, Continuous Testing & Quality, Infrastructure View, Infrastructure as a code as the main tool.
This topic will appeal to everyone - from Software Developer to Architect, as many Tips & Tricks will be revealed.
Developing and Deploying Java applications on the Amazon Elastic Compute Clou...Chris Richardson
Traditionally, computer hardware was a scarce, expensive resource. Running performance tests often meant scavenging for machines around the office. Today, however, things are different. With Amazon's EC2, a cluster of servers is now just a web service call away. In this presentation you will learn about design and implementation of Cloud Tools, which is a Groovy-based framework for deploying and testing Java EE applications on EC2. This framework provides a simple (internal) DSL for configuring a cluster (database + web container + apache), deploying a web application, and running performance tests using JMeter. You will learn about capabilities of EC2 and how to use it for development and deployment. We describe how we use Amazon S3 to work around EC2's lack of a persistent file system and avoid time-consuming uploads of WAR files.
Building microservices with Scala, functional domain models and Spring Boot (...Chris Richardson
In this talk you will learn about a modern way of designing applications that’s very different from the traditional approach of building monolithic applications that persist mutable domain objects in a relational database.We will talk about the microservice architecture, it’s benefits and drawbacks and how Spring Boot can help. You will learn about implementing business logic using functional, immutable domain models written in Scala. We will describe event sourcing and how it’s an extremely useful persistence mechanism for persisting functional domain objects in a microservices architecture.
Developing and deploying applications with Spring Boot and Docker (@oakjug)Chris Richardson
This presentation was given at Oakjug.
Describes why Spring Boot is an excellent choice for building microservices.
Talks about the various ways that Docker can simplify development and deployment.
Discusses how docker-compose makes the life of a developer easier.
#hacksummit 2016 - event-driven microservices – Events on the outside, on the...Chris Richardson
This is my presentation from #hacksummit 2016
This presentation looks at the importance of events and the role that they play in applications. We describe how events are a key application integration mechanism and how they are used by applications to communicate with the outside world. You will learn how the microservices inside a system can use events to maintain data consistency. We discuss how easy it is to implement both of these mechanisms by developing your core business logic using an event-centric approach known as event sourcing.
Events on the outside, on the inside and at the core (jfokus jfokus2016)Chris Richardson
This is the talk I gave at JFokus 2016 on event-driven microservices.
This presentation looks at the importance of events and the role that they play in applications. We describe how events are a key application integration mechanism and how they are used by applications to communicate with the outside world. You will learn how the microservices inside a system can use events to maintain data consistency. We discuss how easy it is to implement both of these mechanisms by developing your core business logic using an event-centric approach known as event sourcing.
Developing event-driven microservices with event sourcing and CQRS (Shanghai)Chris Richardson
This is a talk I gave in Shanghai on July 4th 2016
In a microservices architecture, each service has its own database. While this ensures that services are loosely coupled it creates a problem: how do you maintain consistency across services without using 2PC? In this talk you will learn more about these issues and how to solve them by using an event-driven architecture. We will describe how event sourcing and Command Query Responsibility Separation (CQRS) are a great way to realize an event-driven architecture. You will learn about a simple yet powerful approach for building, modern, scalable applications.
Microservices pattern language (microxchg microxchg2016)Chris Richardson
My talk from http://microxchg.io/2016/index.html.
Here is the video - https://www.youtube.com/watch?v=1mcVQhbkA2U
When architecting an enterprise Java application, you need to choose between the traditional monolithic architecture consisting of a single large WAR file, or the more fashionable microservices architecture consisting of many smaller services. But rather than blindly picking the familiar or the fashionable, it’s important to remember what Fred Books said almost 30 years ago: there are no silver bullets in software. Every architectural decision has both benefits and drawbacks. Whether the benefits of one approach outweigh the drawbacks greatly depends upon the context of your particular project. Moreover, even if you adopt the microservices architecture, you must still make numerous other design decisions, each with their own trade-offs.
A software pattern is an ideal way of describing a solution to a problem in a given context along with its tradeoffs. In this presentation, we describe a pattern language for microservices. You will learn about patterns that will help you decide when and how to use microservices vs. a monolithic architecture. We will also describe patterns that solve various problems in a microservice architecture including inter-service communication, service registration and service discovery.
Developing microservices with aggregates (SpringOne platform, #s1p)Chris Richardson
The Domain Model pattern is a great way to develop complex business logic. Unfortunately, a typical domain model is a tangled, birds nest of classes. It can’t be decomposed into microservices. Moreover, business logic often relies on ACID transactions to maintain consistency.
Fortunately, there is a solution to this problem: aggregates. An aggregate is an often overlooked modeling concept from the must read book Domain Driven Design. In this talk you will learn how aggregates enable you to develop business logic for the modern world of microservices and NoSQL. We will describe how to use aggregates to design modular business logic that can be partitioned into microservices. You will learn how aggregates enable you to use eventual consistency instead of ACID. We will describe the design of a microservice that is built using aggregates, and Spring Cloud.
Developing microservices with aggregates (devnexus2017)Chris Richardson
he Domain Model pattern is a great way to develop complex business logic. Unfortunately, a typical domain model is a tangled, birds nest of classes. It can’t be decomposed into microservices. Moreover, business logic often relies on ACID transactions to maintain consistency. Fortunately, there is a solution to this problem: aggregates.
An aggregate is an often overlooked modeling concept from the must read book Domain Driven Design. In this talk you will learn how aggregates enable you to develop business logic for the modern world of microservices and NoSQL. We will describe how to use aggregates to design modular business logic that can be partitioned into microservices. You will learn how aggregates enable you to use eventual consistency instead of ACID. We will describe the design of a microservice that is built using aggregates, and Spring Cloud.
Developing event-driven microservices with event sourcing and CQRS (svcc, sv...Chris Richardson
Modern, cloud-native applications typically use a microservices architecture in conjunction with NoSQL and/or sharded relational databases. However, in order to successfully use this approach you need to solve some distributed data management problems including how to maintain consistency between multiple databases without using 2PC.
In this talk you will learn more about these issues and how to solve them by using an event-driven architecture. We will describe how event sourcing and Command Query Responsibility Segregation (CQRS) are a great way to realize an event-driven architecture. You will learn about a simple yet powerful approach for building, modern, scalable applications.
Traditionally, computer hardware was a scarce, expensive resource. Running performance tests often meant scavenging for machines around the office. Today, however, things are different. With Amazon’s EC2, a cluster of servers is now just a web service call away.
In this presentation you will learn about design and implementation of Cloud Tools, which are a Groovy-based framework for deploying and testing Java EE applications on EC2. This framework provides a simple (internal) DSL for configuring a cluster (database + web container + apache), deploying a web application, and running performance tests using JMeter. You will learn about capabilities of EC2 and how to use it for development and deployment. We describe how we use Amazon S3 to work around EC2's lack of a persistent file system and avoid time-consuming uploads of WAR files. You will also learn how Groovy helped and hindered with the development of the Cloud Tools.
What you can learn from an open-source project with 250 million downloadsDennis Doomen
Providing a high quality library like that doesn't come for free. We've been trying to write code that is clean enough for our contributors, write tests that are self-explanatory, ensure breaking changes are strictly controlled and try to make it easy to use. In this talk, I'd like to share the tools and techniques we have been using. I'll talk about the release strategy, documentation, versioning, naming conventions, code structure, the build pipeline, automated testing, code coverage, API change detection, multi-targeting and more.
In this talk, I'd like to share the tools and techniques we have been using, how they've enriched our day jobs, and how they may do that for you too.
I'll talk about the release strategy, documentation, versioning, naming conventions, code structure, the build pipeline, automated testing, code coverage, API change detection, multi-targeting and more.
5 Habits of High-Velocity Teams Using KubernetesCodefresh
Watch the full webinar here: https://codefresh.io/5-habits-lp/
Sign up for a FREE Codefresh account today: https://codefresh.io/codefresh-signup/
Connecting all the pieces to make zero downtime continuous delivery happen at scale is a challenge. In this webinar, you will see real teams bring all the components together to make high-velocity deployment to Kubernetes scale. Get a hands-on view of the critical steps that go into making container management a scalable process that not only allows teams to delivery faster but with more confidence in the final result
Cloud-Native Fundamentals: Accelerating Development with Continuous IntegrationVMware Tanzu
DevOps. Microservices. Containers. These terms have a lot of buzz for their role in cloud-native application development and operations. But, if you haven't automated your tests and builds with continuous integration (CI), none of them matter.
Continuous integration is the automation of building and testing new code. Development teams that use CI can catch bugs early and often; resulting in code that is always production ready. Compared to manual testing, CI eliminates a lot of toil and improves code quality. At the end of the day, it's those code defects that slip into production that slow down teams and cause apps to fall over.
The journey to continuous integration maturity has some requirements. Join Pivotal's James Ma, product manager for Concourse, and Dormain Drewitz, product marketing to learn about:
- How Test-Driven Development feeds the CI process
- What is different about CI in a cloud-native context
- How to measure progress and success in adopting CI
Dormain is a Senior Director of Product and Customer Marketing with Pivotal. She has published extensively on cloud computing topics for ten years, demystifying the changing requirements of the infrastructure software stack. She’s presented at the Gartner Application Architecture, Development, and Integration Summit; Open Source Summit; Cloud Foundry Summit, and numerous software user events.
James Ma is a product manager at Pivotal and is based out of their office in Toronto, Canada. As a consultant for the Pivotal Labs team, James worked with Fortune 500 companies to hone their agile software development practices and adopt a user-centered approach to product development. He has worked with companies across multiple industries including: mobile e-commerce, finance, heath and hospitality. James is currently a part of the Pivotal Cloud Foundry R&D group and is the product manager for Concourse CI, the continuous "thing do-er".
Presenters : Dormain Drewitz & James Ma, Pivotal
CI/CD Pipelines for Your Infrastructure...as Code!Harvey Bendaña
Continuous Integration and Continuous Delivery helps developers rapidly and reliably release updates for their applications in a standardized and safe manner. The faster you can release new features and fix bugs, the quicker you can innovate and respond to customer needs.
Infrastructure as Code is a practice by where traditional infrastructure management techniques are supplemented and often replaced by using code based tools and software development techniques.
Amazon Web Services provides developer tools that help you define your infrastructure as code as well as continuously iterate on and develop said infrastructure. In this session, we’ll discuss how to build multi-stage pipelines that let you build and test your software defined infrastructure in an automated way using AWS CodeCommit, AWS CodePipeline, AWS CodeBuild, and AWS Cloudformation. We’ll look at how to orchestrate pipelines across multiple AWS accounts in a secure and scalable fashion.
"Different software evolutions from Start till Release in PHP product" Oleksa...Fwdays
Ця розповідь розкриє підходи для вирішення багатьох проблем в PHP проєктах через: None-Breaking change development підхід, cross-stack контракти, Trunk Based development, еволюція з Polyrepo до Monorepo з компонентами на різних технологіях, Boilerplat’и компонентів, різні Architecture View, Continuous Testing & Quality, Infrastructure View, Infrastructure as a code як основний інструмент.
PHPFrameworkDay 2020 - Different software evolutions from Start till Release ...Alexandr Savchenko
https://fwdays.com/en/event/php-fwdays-2020
All of us think about many questions when we start a project, when we already have a product and when we release it. Here are some of them: which architecture and infrastructure to choose? what should be the repository structure? how to make the right evolution from one application to 100 microservices with success product release? how to distribute cross-stack commands as a whole? what development practices to use?
This story will expose approaches to solving these and many other problems in PHP projects through: None-Breaking change development approach, Cross-stack contacts, Trunk Based development, evolution from Polyrepo to Monorepo with components on different technologies, Boilerplates for components, different Architecture Views, Continuous Testing & Quality, Infrastructure View, Infrastructure as a code as the main tool.
This topic will appeal to everyone - from Software Developer to Architect, as many Tips & Tricks will be revealed.
Developing and Deploying Java applications on the Amazon Elastic Compute Clou...Chris Richardson
Traditionally, computer hardware was a scarce, expensive resource. Running performance tests often meant scavenging for machines around the office. Today, however, things are different. With Amazon's EC2, a cluster of servers is now just a web service call away. In this presentation you will learn about design and implementation of Cloud Tools, which is a Groovy-based framework for deploying and testing Java EE applications on EC2. This framework provides a simple (internal) DSL for configuring a cluster (database + web container + apache), deploying a web application, and running performance tests using JMeter. You will learn about capabilities of EC2 and how to use it for development and deployment. We describe how we use Amazon S3 to work around EC2's lack of a persistent file system and avoid time-consuming uploads of WAR files.
Comprehensive overview of using Test Driven Development (TDD), Behavior Driven Development (BDD), Continuous Integration (CI), Continuous Delivery (CD), Development Operations (DevOps), and Development Operations Security (DevOpsSec). Describes the current global environment, basic lean and agile principles, and the evolution of Microservices. From there, a detailed deep-dive of TDD, BDD, CI, CD, DevOps, and DevOpsSec principles and practices ensues. Closes by identifying key DevOps tool automation ecosystems/pipelines, metrics, case studies, return on investment (ROI)/business cases, implementation roadmaps, adoption statistics, leadership insights, and a summary. Contains a lot of helpful data for constructing DevOps strategic business cases as well as tactical implementation strategies (while not ignoring essential elements such as microservices, containerization, and application security).
ROI & Business Value of CI, CD, DevOps, DevSecOps, & MicroservicesDavid Rico
Comprehensive overview of CI, CD, DevOps, DevSecOps, and Microservices, along with costs, benefits, facts, figures, statistics, models, tools, DevOps ecosystems and pipelines, case studies, and edge cases ...
Performance testing DataHelix | Scott LogicPaul Dykes
Presentation by Scott Logic's Frances Bromley and Ciara Gardiner at the South West Test meetup on 9 July 2019, summarising their learnings from a project to develop a tool which performance tests DataHelix.
DataHelix is an open source product to automate the creation of usable and representative sample data for testing and development purposes. Find out more and contribute to its development at https://github.com/finos/datahelix
From Monolith to Microservices (And All the Bumps along the Way) (CON360-R1) ...Amazon Web Services
Applications built on a microservices-based architecture and packaged as containers bring several benefits to your organization. In this session, Duolingo, a popular language-learning platform and an Amazon ECS customer, describes its journey from a monolith to a microservices architecture. We highlight the hurdles you may encounter, discuss how to plan your migration to microservices, and explain how you can use Amazon ECS to manage this journey.
A common microservice architecture anti-pattern is more the merrier. It occurs when an organization team builds an excessively fine-grained architecture, e.g. one service-per-developer. In this talk, you will learn about the criteria that you should consider when deciding service granularity. I'll discuss the downsides of a fine-grained microservice architecture. You will learn how sometimes the solution to a design problem is simply a JAR file.
YOW London - Considering Migrating a Monolith to Microservices? A Dark Energy...Chris Richardson
This is a talk I gave at YOW! London 2022.
Let's imagine that you are responsible for an aging monolithic application that's critical to your business. Sadly, getting changes into production is a painful ordeal that regularly causes outages. And to make matters worse, the application's technology stack is growing increasingly obsolete. Neither the business nor the developers are happy. You need to modernize your application and have read about the benefits of microservices. But is the microservice architecture a good choice for your application?
In this presentation, I describe the dark energy and dark matter forces (a.k.a. concerns) that you must consider when deciding between the monolithic and microservice architectural styles. You will learn about how well each architectural style resolves each of these forces. I describe how to evaluate the relative importance of each of these forces to your application. You will learn how to use the results of this evaluation to decide whether to migrate to the microservice architecture.
Dark Energy, Dark Matter and the Microservices Patterns?!Chris Richardson
Dark matter and dark energy are mysterious concepts from astrophysics that are used to explain observations of distant stars and galaxies. The Microservices pattern language - a collection of patterns that solve architecture, design, development, and operational problems — enables software developers to use the microservice architecture effectively. But how could there possibly be a connection between microservices and these esoteric concepts from astrophysics?
In this presentation, I describe how dark energy and dark matter are excellent metaphors for the competing forces (a.k.a. concerns) that must be resolved by the microservices pattern language. You will learn that dark energy, which is an anti-gravity, is a metaphor for the repulsive forces that encourage decomposition into services. I describe how dark matter, which is an invisible matter that has a gravitational effect, is a metaphor for the attractive forces that resist decomposition and encourage the use of a monolithic architecture. You will learn how to use the dark energy and dark matter forces as guide when designing services and operations.
Dark energy, dark matter and microservice architecture collaboration patternsChris Richardson
Dark energy and dark matter are useful metaphors for the repulsive forces, which encourage decomposition into services, and the attractive forces, which resist decomposition. You must balance these conflicting forces when defining a microservice architecture including when designing system operations (a.k.a. requests) that span services.
In this talk, I describe the dark energy and dark matter forces. You will learn how to design system operations that span services using microservice architecture collaboration patterns: Saga, Command-side replica, API composition, and CQRS patterns. I describe how each of these patterns resolve the dark energy and dark matter forces differently.
It sounds dull but good architecture documentation is essential. Especially when you are actively trying to improve your architecture.
For example, I spend a lot time helping clients modernize their software architecture. More often than I like, I’m presented with a vague and lifeless collection of boxes and lines. As a result, it’s sometimes difficult to discuss the architecture in a meaningful and productive way. In this presentation, I’ll describe techniques for creating minimal yet effective documentation for your application’s microservice architecture. In particular, you will learn how documenting scenarios can bring your architecture to life.
Using patterns and pattern languages to make better architectural decisions Chris Richardson
This is a presentation that gave at the O'Reilly Software Architecture Superstream: Software Architecture Patterns.
The talk's focus is the microservices pattern language.
However, it also shows how thinking with the pattern mindset - context/problem/forces/solution/consequences - leads to better technically decisions.
The microservices architecture offers tremendous benefits, but it’s not a silver bullet. It also has some significant drawbacks. The microservices pattern language—a collection of patterns that solve architecture, design, development, and operational problems—enables software developers to apply the microservices architecture effectively. I provide an overview of the microservices architecture and examines the motivations for the pattern language, then takes you through the key patterns in the pattern language.
Rapid, reliable, frequent and sustainable software development requires an architecture that is loosely coupled and modular.
Teams need to be able complete their work with minimal coordination and communication with other teams.
They also need to be able keep the software’s technology stack up to date.
However, the microservice architecture isn’t always the only way to satisfy these requirements.
Yet, neither is the monolithic architecture.
In this talk, I describe loose coupling and modularity and why they are is essential.
You will learn about three architectural patterns: traditional monolith, modular monolith and microservices.
I describe the benefits, drawbacks and issues of each pattern and how well it supports rapid, reliable, frequent and sustainable development.
You will learn some heuristics for selecting the appropriate pattern for your application.
Events to the rescue: solving distributed data problems in a microservice arc...Chris Richardson
To deliver a large complex application rapidly, frequently and reliably, you often must use the microservice architecture.
The microservice architecture is an architectural style that structures the application as a collection of loosely coupled services.
One challenge with using microservices is that in order to be loosely coupled each service has its own private database.
As a result, implementing transactions and queries that span services is no longer straightforward.
In this presentation, you will learn how event-driven microservices address this challenge.
I describe how to use sagas, which is an asynchronous messaging-based pattern, to implement transactions that span services.
You will learn how to implement queries that span services using the CQRS pattern, which maintain easily queryable replicas using events.
A pattern language for microservices - June 2021 Chris Richardson
The microservice architecture is growing in popularity. It is an architectural style that structures an application as a set of loosely coupled services that are organized around business capabilities. Its goal is to enable the continuous delivery of large, complex applications. However, the microservice architecture is not a silver bullet and it has some significant drawbacks.
The goal of the microservices pattern language is to enable software developers to apply the microservice architecture effectively. It is a collection of patterns that solve architecture, design, development and operational problems. In this talk, I’ll provide an overview of the microservice architecture and describe the motivations for the pattern language. You will learn about the key patterns in the pattern language.
QConPlus 2021: Minimizing Design Time Coupling in a Microservice ArchitectureChris Richardson
Delivering large, complex software rapidly, frequently and reliably requires a loosely coupled organization. DevOps teams should rarely need to communicate and coordinate in order to get work done. Conway's law states that an organization and the architecture that it develops mirror one another. Hence, a loosely coupled organization requires a loosely coupled architecture.
In this presentation, you will learn about design-time coupling in a microservice architecture and why it's essential to minimize it. I describe how to design service APIs to reduce coupling. You will learn how to minimize design-time coupling by applying a version of the DRY principle. I describe how key microservices patterns potentially result in tight design time coupling and how to avoid it.
Mucon 2021 - Dark energy, dark matter: imperfect metaphors for designing micr...Chris Richardson
In order to explain certain astronomical observations, physicists created the mysterious concepts of dark energy and dark matter.
Dark energy is a repulsive force.
It’s an anti-gravity that is forcing matter apart and accelerating the expansion of the universe.
Dark matter has the opposite attraction effect.
Although it’s invisible, dark matter has a gravitational effect on stars and galaxies.
In this presentation, you will learn how these metaphors apply to the microservice architecture.
I describe how there are multiple repulsive forces that drive the decomposition of your application into services.
You will learn, however, that there are also multiple attractive forces that resist decomposition and bind software elements together.
I describe how as an architect you must find a way to balance these opposing forces.
Skillsmatter CloudNative eXchange 2020
The microservice architecture is a key part of cloud native.
An essential principle of the microservice architecture is loose coupling.
If you ignore this principle and develop tightly coupled services the result will mostly likely be yet another "microservices failure story”.
Your application will be brittle and have all of disadvantages of both the monolithic and microservice architectures.
In this talk you will learn about the different kinds of coupling and how to design loosely coupled microservices.
I describe how to minimize design time and increase the productivity of your DevOps teams.
You will learn how how to reduce runtime coupling and improve availability.
I describe how to improve availability by minimizing the coupling caused by your infrastructure.
DDD SoCal: Decompose your monolith: Ten principles for refactoring a monolith...Chris Richardson
This is a talk I gave at DDD SoCal.
1. Make the most of your monolith
2. Adopt microservices for the right reasons
3. It’s not just architecture
4. Get the support of the business
5. Migrate incrementally
6. Know your starting point
7. Begin with the end in mind
8. Migrate high-value modules first
9. Success is improved velocity and reliability
10. If it hurts, don’t do it
Decompose your monolith: Six principles for refactoring a monolith to microse...Chris Richardson
This was a talk I gave at the CTO virtual summit on July 28th. It describes 6 principles for refactoring to a microservice architecture.
1. Make the most of your monolith
2. Adopt microservices for the right reasons
3. Migrate incrementally
4. Begin with the end in mind
5. Migrate high-value modules first
6. Success is improved velocity and reliability
The microservice architecture is becoming increasingly important. But what is it exactly? Why should you care about microservices? And, what do you need to do to ensure that your organization uses the microservice architecture successfully? In this talk, I’ll answer these and other questions. You will learn about the motivations for the microservice architecture and why simply adopting microservices is insufficient. I describe essential characteristics of microservices, You will learn how a successful microservice architecture consists of loosely coupled services with stable APIs that communicate asynchronously.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
zkStudyClub - Reef: Fast Succinct Non-Interactive Zero-Knowledge Regex ProofsAlex Pruden
This paper presents Reef, a system for generating publicly verifiable succinct non-interactive zero-knowledge proofs that a committed document matches or does not match a regular expression. We describe applications such as proving the strength of passwords, the provenance of email despite redactions, the validity of oblivious DNS queries, and the existence of mutations in DNA. Reef supports the Perl Compatible Regular Expression syntax, including wildcards, alternation, ranges, capture groups, Kleene star, negations, and lookarounds. Reef introduces a new type of automata, Skipping Alternating Finite Automata (SAFA), that skips irrelevant parts of a document when producing proofs without undermining soundness, and instantiates SAFA with a lookup argument. Our experimental evaluation confirms that Reef can generate proofs for documents with 32M characters; the proofs are small and cheap to verify (under a second).
Paper: https://eprint.iacr.org/2023/1886
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Generative AI Deep Dive: Advancing from Proof of Concept to ProductionAggregage
Join Maher Hanafi, VP of Engineering at Betterworks, in this new session where he'll share a practical framework to transform Gen AI prototypes into impactful products! He'll delve into the complexities of data collection and management, model selection and optimization, and ensuring security, scalability, and responsible use.
Dr. Sean Tan, Head of Data Science, Changi Airport Group
Discover how Changi Airport Group (CAG) leverages graph technologies and generative AI to revolutionize their search capabilities. This session delves into the unique search needs of CAG’s diverse passengers and customers, showcasing how graph data structures enhance the accuracy and relevance of AI-generated search results, mitigating the risk of “hallucinations” and improving the overall customer journey.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
How to Get CNIC Information System with Paksim Ga.pptxdanishmna97
Pakdata Cf is a groundbreaking system designed to streamline and facilitate access to CNIC information. This innovative platform leverages advanced technology to provide users with efficient and secure access to their CNIC details.
Communications Mining Series - Zero to Hero - Session 1DianaGray10
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Pushing the limits of ePRTC: 100ns holdover for 100 daysAdtran
At WSTS 2024, Alon Stern explored the topic of parametric holdover and explained how recent research findings can be implemented in real-world PNT networks to achieve 100 nanoseconds of accuracy for up to 100 days.
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!SOFTTECHHUB
As the digital landscape continually evolves, operating systems play a critical role in shaping user experiences and productivity. The launch of Nitrux Linux 3.5.0 marks a significant milestone, offering a robust alternative to traditional systems such as Windows 11. This article delves into the essence of Nitrux Linux 3.5.0, exploring its unique features, advantages, and how it stands as a compelling choice for both casual users and tech enthusiasts.