Building Immutable Machine Images with Packer and AnsibleJason Harley
Slides from a talk given at DevOps Toronto's monthly meetup held on Nov. 7, 2017 at Indigo Digital.
Abstract:
Immutable Infrastructure promises stability and repeatability for your environment and is considered by many to be the "enlightened stage" of an Infrastructure as Code practice. The benefits of immutability in infrastructure seem obvious: if you know a system has been created via automation that you trust, and hasn't been changed since creation, then making changes quickly seems far less risky. In a cloud-based environment, Immutable Infrastructure starts with trusted, immutable machine images. Building these images can quickly outgrow bespoke scripts, and this bespoke tooling quickly begins to feel you're duplicating effort if you already have configuration management in house.
In this talk, HashiCorp's Packer will be paired with Ansible to iteratively build and test an immutable AWS AMI. The techniques and workflow should be transferrable to other configuration management tools (Chef, Puppet, Salt, et cetera) or cloud platforms (GCP, Azure, OpenStack, et cetera).
Microservice With Spring Boot and Spring CloudEberhard Wolff
Spring Boot and Spring Cloud are an ideal foundation for creating Microservices based on Java. This presentation explains basic concepts of these libraries.
Folding Unfolded - Polyglot FP for Fun and Profit - Haskell and Scala - with ...Philip Schwarz
(download for perfect quality) - See how recursive functions and structural induction relate to recursive datatypes.
Follow along as the fold abstraction is introduced and explained.
Watch as folding is used to simplify the definition of recursive functions over recursive datatypes
Part 1 - through the work of Richard Bird and Graham Hutton.
This version corrects the following issues:
slide 7, 11 fib(0) is 0,rather than 1
slide 23: was supposed to be followed by 2-3 slides recapitulating definitions of factorial and fibonacci with and without foldr, plus translation to scala
slide 36: concat not invoked in concat example
slides 48 and 49: unwanted 'm' in definition of sum
throughout: a couple of typographical errors
throughout: several aesthetic imperfections (wrong font, wrong font colour)
Microservices Tutorial for Beginners | Microservices Architecture | Microserv...Edureka!
( Microservices Architecture Training: https://www.edureka.co/microservices-architecture-training )
This Edureka's tutorial will help you understand what are microservices and their practical implementation using Spring Boot. In this video, you will learn the following:
1. Monolithic Architecture
2. Challenges Of Monolithic Architecture
3. What are Microservices
4. Microservice Architecture Components
5. Hands-On Using Spring Boot
Rest-assured is a 100% java-based, BDD style, test library that you can use for testing REST api's in java projects. These are the slides from the presentation and demo I give at the 2017 #JBCNConf Java conference in Barcelona.
Qlik Senseのビジュアライゼーション拡張機能について概要から詳細な実装方法まで解説いたします。Extension(エクステンション)と呼ばれる機能は、標準的なWeb技術を利用してQlik Senseの可視化機能を拡張することを可能にします。Extensionを用いれば、開発者はQlik Sense APIのパワーとWeb技術を組み合わせることができるプラグインを開発可能です。
Building Immutable Machine Images with Packer and AnsibleJason Harley
Slides from a talk given at DevOps Toronto's monthly meetup held on Nov. 7, 2017 at Indigo Digital.
Abstract:
Immutable Infrastructure promises stability and repeatability for your environment and is considered by many to be the "enlightened stage" of an Infrastructure as Code practice. The benefits of immutability in infrastructure seem obvious: if you know a system has been created via automation that you trust, and hasn't been changed since creation, then making changes quickly seems far less risky. In a cloud-based environment, Immutable Infrastructure starts with trusted, immutable machine images. Building these images can quickly outgrow bespoke scripts, and this bespoke tooling quickly begins to feel you're duplicating effort if you already have configuration management in house.
In this talk, HashiCorp's Packer will be paired with Ansible to iteratively build and test an immutable AWS AMI. The techniques and workflow should be transferrable to other configuration management tools (Chef, Puppet, Salt, et cetera) or cloud platforms (GCP, Azure, OpenStack, et cetera).
Microservice With Spring Boot and Spring CloudEberhard Wolff
Spring Boot and Spring Cloud are an ideal foundation for creating Microservices based on Java. This presentation explains basic concepts of these libraries.
Folding Unfolded - Polyglot FP for Fun and Profit - Haskell and Scala - with ...Philip Schwarz
(download for perfect quality) - See how recursive functions and structural induction relate to recursive datatypes.
Follow along as the fold abstraction is introduced and explained.
Watch as folding is used to simplify the definition of recursive functions over recursive datatypes
Part 1 - through the work of Richard Bird and Graham Hutton.
This version corrects the following issues:
slide 7, 11 fib(0) is 0,rather than 1
slide 23: was supposed to be followed by 2-3 slides recapitulating definitions of factorial and fibonacci with and without foldr, plus translation to scala
slide 36: concat not invoked in concat example
slides 48 and 49: unwanted 'm' in definition of sum
throughout: a couple of typographical errors
throughout: several aesthetic imperfections (wrong font, wrong font colour)
Microservices Tutorial for Beginners | Microservices Architecture | Microserv...Edureka!
( Microservices Architecture Training: https://www.edureka.co/microservices-architecture-training )
This Edureka's tutorial will help you understand what are microservices and their practical implementation using Spring Boot. In this video, you will learn the following:
1. Monolithic Architecture
2. Challenges Of Monolithic Architecture
3. What are Microservices
4. Microservice Architecture Components
5. Hands-On Using Spring Boot
Rest-assured is a 100% java-based, BDD style, test library that you can use for testing REST api's in java projects. These are the slides from the presentation and demo I give at the 2017 #JBCNConf Java conference in Barcelona.
Qlik Senseのビジュアライゼーション拡張機能について概要から詳細な実装方法まで解説いたします。Extension(エクステンション)と呼ばれる機能は、標準的なWeb技術を利用してQlik Senseの可視化機能を拡張することを可能にします。Extensionを用いれば、開発者はQlik Sense APIのパワーとWeb技術を組み合わせることができるプラグインを開発可能です。
Modern Java web applications with Spring Boot and ThymeleafLAY Leangsros
If you’re using Java in an enterprise environment, you’ve most likely been using Spring Framework with JSP which does the job pretty well.But I will provide the sampling of how Spring Boot helps you accelerate and facilitate application development better. I will show a templating technology, Thymleaf which can be used much more modern features;
This presentation is conducted on 14th Sept in Limerick DotNet User Group.
(https://www.meetup.com/preview/Limerick-DotNet/events/xskpdnywmbsb)
SlideShare Url: https://www.slideshare.net/lalitkale/introduction-to-microservices-80583928
In this presentation, new architectural style - Microservices and it's emergence is discussed. We will also briefly touch base on what are not microservices, Conway's law and organization design, Principles of microservices and service discovery mechanism and why it is necessary for microservices implementation.
About Speaker:
Lalit is a senior developer, software architect and consultant with more than 12 yrsof .NET experience. He loves to work with C# .NET and Azure platform services like App Services, Virtual Machines, Cortana, and Container Services. He is also the author of 'Building Microservices with .NET Core' (https://www.packtpub.com/web-development/building-microservices-net-core) book.
To know more and connect with Lalit, you can visit his LinkedIn profile below. https://www.linkedin.com/in/lalitkale/
This presentation will be useful for software architects/Managers, senior developers.
Do share your feedback in comments.
API Management Part 1 - An Introduction to Azure API ManagementBizTalk360
Building APIs is not just about technology. APIs enable many new business opportunities, but only if done correctly. Enter API Management platforms to provide the building blocks behind a successful API program. As a result of lucrative opportunities, many Software vendors have emerged or pivoted from their SOA management roots to provide API Management capabilities.
In this session, Kent will introduce you to Microsoft’s Azure API Management platform by providing an overview that highlights its capabilities and the opportunities that emerge for organizations. As part of this presentation, Kent will demonstrate how developers can create their first API and discuss strategies for transforming existing services to leverage Azure API Management.
This presentation will consist of general guidance on API Management, an Azure API Management portal walk-through and demos that re-enforce the concepts that were introduced.
Builder Design Pattern (Generic Construction -Different Representation)Sameer Rathoud
Generic Construction -Different Representation
This presentation provide information to understand builder design pattern, it’s structure, it’s implementation.
API Security Teodor Cotruta discusses API security and provides an overview of key concepts. The document discusses how API security involves protecting APIs against unauthorized access, use, disclosure, disruption, modification, perusal, inspection, recording or destruction. It also outlines methods for implementing API security such as HTTP authentication, TLS, identity delegation, OAuth 1.0, OAuth 2.0, Federation, SAML, JWT, OpenID Connect, JWToken, JWSignature and JWEncryption.
Learn all about microservices from Product Marketing Manager Dan Giordano. We'll cover how to get started, the benefits, potential challenges, and how SmartBear can help.
Mastering Java Bytecode With ASM - 33rd degree, 2012Anton Arhipov
The document discusses bytecode and the ASM library for manipulating Java bytecode. It provides an overview of bytecode structure and instructions. ASM is introduced as a low-level API for working with bytecode using visitors and nodes. Examples are given for generating bytecode using ASM, such as creating a ClassWriter, visiting classes, fields and methods, and generating instructions.
Understanding REST APIs in 5 Simple StepsTessa Mero
This document summarizes the 5 steps to understanding REST APIs: 1) Understanding the purpose of APIs and their importance and growth, 2) Learning that REST defines functions to communicate via HTTP verbs and nouns, 3) Knowing that APIs use requests and responses, 4) Relying on documentation as the reference, and 5) Using debugging and testing tools to prevent issues. It provides examples of requests, responses, API documentation, and tools like Postman for working with REST APIs.
This document discusses data access with JDBC using the Spring Framework. It covers Spring's DAO support, exception handling, and approaches for database access including JdbcTemplate, NamedParameterJdbcTemplate, and controlling connections through a DataSource. The core classes provided by Spring simplify JDBC usage and handle common database tasks like opening/closing connections and transactions.
This document discusses Spring Boot and how it provides automatic configuration for common web application functionalities like JPA, security, and Spring MVC. It also covers how Spring Boot uses starter dependencies to select libraries automatically and provides tools like the CLI and Spring Initializr. The document then demonstrates creating a basic Spring Boot application and discusses testing Spring Boot applications using techniques like mocking Spring MVC and integrating tests.
This presentation covers deploy Azure DevOps projects, repositories, pipelines, variable groups, etc. using the newly released Azure DevOps Terraform provider.
A recording of this presentation is available on my YouTube channel here: https://www.youtube.com/c/adinermie
A blog article about this topic is also available here: https://adinermie.com/deploying-azure-devops-ado-using-terraform/
This document contains 50 interview questions related to Git for beginner, intermediate, and advanced levels. It covers topics such as basic Git commands, branching strategies, resolving conflicts, rebasing vs merging, and integrating Git with Jenkins. For each question, it lists the question text and brief explanation or code snippets for the answer. The full document acts as a reference guide for learning and preparing for Git related technical interviews.
Onion Architecture, the concept introduced by the Jeffery Palermo in 2008 with a aim to make the application loosely coupled and with proper separation between the folders and the different areas of concern in the application. This makes the development easier, the testing of the application easier, the maintenance becomes easier.
What is REST API? REST API Concepts and Examples | EdurekaEdureka!
YouTube Link: https://youtu.be/rtWH70_MMHM
** Node.js Certification Training: https://www.edureka.co/nodejs-certification-training **
This Edureka PPT on 'What is REST API?' will help you understand the concept of RESTful APIs and show you the implementation of REST APIs'. Following topics are covered in this REST API tutorial for beginners:
Need for REST API
What is REST API?
Features of REST API
Principles of REST API
Methods of REST API
How to implement REST API?
Follow us to never miss an update in the future.
YouTube: https://www.youtube.com/user/edurekaIN
Instagram: https://www.instagram.com/edureka_learning/
Facebook: https://www.facebook.com/edurekaIN/
Twitter: https://twitter.com/edurekain
LinkedIn: https://www.linkedin.com/company/edureka
Castbox: https://castbox.fm/networks/505?country=in
A proper Microservice is designed for fast failure.
Like other architectural style, microservices bring costs and benefits. Some development teams have found microservices architectural style to be a superior approach to a monolithic architecture. Other teams have found them to be a productivity-sapping burden.
This material start with the basic what and why microservice, follow with the Felix example and the the successful strategies to develop microservice application.
An overview of Azure API Management, common use cases, and how it helps organizations to govern, publish, secure, analyze, and manage APIs for internal and external consumption whether their running in the cloud or on-prem.
Modern Java web applications with Spring Boot and ThymeleafLAY Leangsros
If you’re using Java in an enterprise environment, you’ve most likely been using Spring Framework with JSP which does the job pretty well.But I will provide the sampling of how Spring Boot helps you accelerate and facilitate application development better. I will show a templating technology, Thymleaf which can be used much more modern features;
This presentation is conducted on 14th Sept in Limerick DotNet User Group.
(https://www.meetup.com/preview/Limerick-DotNet/events/xskpdnywmbsb)
SlideShare Url: https://www.slideshare.net/lalitkale/introduction-to-microservices-80583928
In this presentation, new architectural style - Microservices and it's emergence is discussed. We will also briefly touch base on what are not microservices, Conway's law and organization design, Principles of microservices and service discovery mechanism and why it is necessary for microservices implementation.
About Speaker:
Lalit is a senior developer, software architect and consultant with more than 12 yrsof .NET experience. He loves to work with C# .NET and Azure platform services like App Services, Virtual Machines, Cortana, and Container Services. He is also the author of 'Building Microservices with .NET Core' (https://www.packtpub.com/web-development/building-microservices-net-core) book.
To know more and connect with Lalit, you can visit his LinkedIn profile below. https://www.linkedin.com/in/lalitkale/
This presentation will be useful for software architects/Managers, senior developers.
Do share your feedback in comments.
API Management Part 1 - An Introduction to Azure API ManagementBizTalk360
Building APIs is not just about technology. APIs enable many new business opportunities, but only if done correctly. Enter API Management platforms to provide the building blocks behind a successful API program. As a result of lucrative opportunities, many Software vendors have emerged or pivoted from their SOA management roots to provide API Management capabilities.
In this session, Kent will introduce you to Microsoft’s Azure API Management platform by providing an overview that highlights its capabilities and the opportunities that emerge for organizations. As part of this presentation, Kent will demonstrate how developers can create their first API and discuss strategies for transforming existing services to leverage Azure API Management.
This presentation will consist of general guidance on API Management, an Azure API Management portal walk-through and demos that re-enforce the concepts that were introduced.
Builder Design Pattern (Generic Construction -Different Representation)Sameer Rathoud
Generic Construction -Different Representation
This presentation provide information to understand builder design pattern, it’s structure, it’s implementation.
API Security Teodor Cotruta discusses API security and provides an overview of key concepts. The document discusses how API security involves protecting APIs against unauthorized access, use, disclosure, disruption, modification, perusal, inspection, recording or destruction. It also outlines methods for implementing API security such as HTTP authentication, TLS, identity delegation, OAuth 1.0, OAuth 2.0, Federation, SAML, JWT, OpenID Connect, JWToken, JWSignature and JWEncryption.
Learn all about microservices from Product Marketing Manager Dan Giordano. We'll cover how to get started, the benefits, potential challenges, and how SmartBear can help.
Mastering Java Bytecode With ASM - 33rd degree, 2012Anton Arhipov
The document discusses bytecode and the ASM library for manipulating Java bytecode. It provides an overview of bytecode structure and instructions. ASM is introduced as a low-level API for working with bytecode using visitors and nodes. Examples are given for generating bytecode using ASM, such as creating a ClassWriter, visiting classes, fields and methods, and generating instructions.
Understanding REST APIs in 5 Simple StepsTessa Mero
This document summarizes the 5 steps to understanding REST APIs: 1) Understanding the purpose of APIs and their importance and growth, 2) Learning that REST defines functions to communicate via HTTP verbs and nouns, 3) Knowing that APIs use requests and responses, 4) Relying on documentation as the reference, and 5) Using debugging and testing tools to prevent issues. It provides examples of requests, responses, API documentation, and tools like Postman for working with REST APIs.
This document discusses data access with JDBC using the Spring Framework. It covers Spring's DAO support, exception handling, and approaches for database access including JdbcTemplate, NamedParameterJdbcTemplate, and controlling connections through a DataSource. The core classes provided by Spring simplify JDBC usage and handle common database tasks like opening/closing connections and transactions.
This document discusses Spring Boot and how it provides automatic configuration for common web application functionalities like JPA, security, and Spring MVC. It also covers how Spring Boot uses starter dependencies to select libraries automatically and provides tools like the CLI and Spring Initializr. The document then demonstrates creating a basic Spring Boot application and discusses testing Spring Boot applications using techniques like mocking Spring MVC and integrating tests.
This presentation covers deploy Azure DevOps projects, repositories, pipelines, variable groups, etc. using the newly released Azure DevOps Terraform provider.
A recording of this presentation is available on my YouTube channel here: https://www.youtube.com/c/adinermie
A blog article about this topic is also available here: https://adinermie.com/deploying-azure-devops-ado-using-terraform/
This document contains 50 interview questions related to Git for beginner, intermediate, and advanced levels. It covers topics such as basic Git commands, branching strategies, resolving conflicts, rebasing vs merging, and integrating Git with Jenkins. For each question, it lists the question text and brief explanation or code snippets for the answer. The full document acts as a reference guide for learning and preparing for Git related technical interviews.
Onion Architecture, the concept introduced by the Jeffery Palermo in 2008 with a aim to make the application loosely coupled and with proper separation between the folders and the different areas of concern in the application. This makes the development easier, the testing of the application easier, the maintenance becomes easier.
What is REST API? REST API Concepts and Examples | EdurekaEdureka!
YouTube Link: https://youtu.be/rtWH70_MMHM
** Node.js Certification Training: https://www.edureka.co/nodejs-certification-training **
This Edureka PPT on 'What is REST API?' will help you understand the concept of RESTful APIs and show you the implementation of REST APIs'. Following topics are covered in this REST API tutorial for beginners:
Need for REST API
What is REST API?
Features of REST API
Principles of REST API
Methods of REST API
How to implement REST API?
Follow us to never miss an update in the future.
YouTube: https://www.youtube.com/user/edurekaIN
Instagram: https://www.instagram.com/edureka_learning/
Facebook: https://www.facebook.com/edurekaIN/
Twitter: https://twitter.com/edurekain
LinkedIn: https://www.linkedin.com/company/edureka
Castbox: https://castbox.fm/networks/505?country=in
A proper Microservice is designed for fast failure.
Like other architectural style, microservices bring costs and benefits. Some development teams have found microservices architectural style to be a superior approach to a monolithic architecture. Other teams have found them to be a productivity-sapping burden.
This material start with the basic what and why microservice, follow with the Felix example and the the successful strategies to develop microservice application.
An overview of Azure API Management, common use cases, and how it helps organizations to govern, publish, secure, analyze, and manage APIs for internal and external consumption whether their running in the cloud or on-prem.
19. 비교대상 #1 - Code Snippet Library
- 외부에 미리 만들어 둔 텍스트를 그대로 에디터에 붙여줍니다
- 코드 플레이스 홀더 작성 가능
- 라이브러리 패널 / 단축키로 빠르게 호출 가능
20. 비교대상 #1 - Code Snippet Library
- 외부에 미리 만들어 둔 텍스트를 그대로 에디터에 붙여줍니다
- 코드 플레이스 홀더 작성 가능
- 라이브러리 패널 / 단축키로 빠르게 호출 가능
- 개발자가 직접 불러서 사용해야함. (백날 만들어 놔도…)
- 팀 내부에서 공유하기 번거로움
- 특정 위치에 스니펫 파일들을 설치하는 형식, 설치 스크립트 돌려야 해요
- 한번 설치된 파일 업데이트는 더 번거로움
34. 비교대상 #2 - C Macro
- 프로젝트 내부에 정의한 텍스트를 전처리기가 그대로 붙여 넣어줍니다
- 텍스트 취급이라서 호출도 마음대로 사용 가능
35. 비교대상 #2 - C Macro
- 프로젝트 내부에 정의한 텍스트를 전처리기가 그대로 붙여 넣어줍니다
- 텍스트 취급이라서 호출도 마음대로 사용 가능
- 멀티라인 정의
- 소스 파악할 때 위 아래로 오르락 내리락
- 다른 프로젝트에 공유할때 소스카피
- 텍스트 취급, 로직 실수 발생이 너무 쉬움
36. 스위프트 매크로가 하는 일
이미지 출처: https://docs.swift.org/swift-book/documentation/the-swift-programming-language/macros/
37. 매크로가 작성된 곳에 코드를 붙여넣어 줍니다
스위프트 매크로가 하는 일
이미지 출처: https://docs.swift.org/swift-book/documentation/the-swift-programming-language/macros/
38. 차이점 #1
이미지 출처: https://docs.swift.org/swift-book/documentation/the-swift-programming-language/macros/
매크로가 작성된 곳에 코드를 붙여넣어 줍니다
39. 매크로가 작성된 곳에 컴파일러가 코드를 만들어서 붙여넣어 줍니다
차이점 #1
이미지 출처: https://docs.swift.org/swift-book/documentation/the-swift-programming-language/macros/
40. 차이점 #2
이미지 출처: https://www.timc.dev/posts/understanding-swift-packages/
41. 차이점 #2
Swift Package Manager
이미지 출처: https://www.timc.dev/posts/understanding-swift-packages/
42. 차이점 #2
Swift Package Manager
팀 내부에서 공유, 버전관리, 다른 프로젝트에서 재사용
이미지 출처: https://www.timc.dev/posts/understanding-swift-packages/
47. 스위프트 매크로는
- 컴파일러가 원하는 위치에 코드를 생성해서 붙여줍니다
- 스위프트 패키지를 이용하여 배포
- 만들어진 코드 미리보기, 복사 붙여넣기 가능
- 타입 추론 돌아감
48. 스위프트 매크로는
- 컴파일러가 원하는 위치에 코드를 생성해서 붙여줍니다
- 스위프트 패키지를 이용하여 배포
- 만들어진 코드 미리보기, 복사 붙여넣기 가능
- 타입 추론 돌아감
- 배경지식이 필요함
- 사용할 때: 7가지 역할을 이해해야 함
- 작성할 때: Swift Syntax Tree가 생소함
138. 요구사항 소개
Decodable을 채택한 자료형을 사용하기 불편한 경우
혹은 Codable 이전에 구현 된 프로젝트들
WKScriptMessage.body: Any -> JSONString -> Instance
XMLParser -> [String: Any] -> Instance
😿
😹
139. 요구사항 소개
Decodable을 채택한 자료형을 사용하기 불편한 경우
혹은 Codable 이전에 구현 된 프로젝트들
WKScriptMessage.body: Any -> JSONString -> Instance
XMLParser -> [String: Any] -> Instance
Legacy Initializers
😿
😹
140. Heritage Initializers
요구사항 소개
Decodable을 채택한 자료형을 사용하기 불편한 경우
혹은 Codable 이전에 구현 된 프로젝트들
WKScriptMessage.body: Any -> JSONString -> Instance
XMLParser -> [String: Any] -> Instance
😿
😹