投稿時間:2023-03-22 03:36:36 RSSフィード2023-03-22 03:00 分まとめ(44件)

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ROBOT	ロボスタ	【NVIDIA Jetson Orin Nanoレビュー(１)】予約販売開始！新時代のAIエッジデバイスを最速で「開封の儀」	https://robotstart.info/2023/03/22/jetson-orin-nano-dev-review-01.html		2023-03-21 17:01:49
AWS	AWS Partner Network (APN) Blog	DXC Technology Enables End-to-End Tracing for Microservice Architecture Using AWS X-Ray	https://aws.amazon.com/blogs/apn/dxc-technology-enables-end-to-end-tracing-for-microservice-architecture-using-aws-x-ray/	DXC Technology Enables End to End Tracing for Microservice Architecture Using AWS X RayWhen a DXC Technology customer wanted a complete view of requests traveling through an application so they could compare trace sets with different conditions DXC deployed distributed tracing using AWS X Ray This helped monitor and debug distributed applications within the workflow to aid in swift identification of performance issues or errors Explore the solution s reference architecture and follow a step by step how to enable AWS X Ray for different AWS products	2023-03-21 17:46:44
AWS	AWS Networking and Content Delivery	Centralized outbound inspection architecture in AWS Cloud WAN	https://aws.amazon.com/blogs/networking-and-content-delivery/centralized-outbound-inspection-architecture-in-aws-cloud-wan/	Centralized outbound inspection architecture in AWS Cloud WANAWS Cloud WAN helps you build a unified network that connects your cloud and on premises environments To help secure these networks organizations use next generation firewalls NGFW and intrusion prevention systems IPS as part of a defense in depth strategy In this post we describe architectural patterns for centrally managing and inspecting outbound network traffic from …	2023-03-21 17:11:53
AWS	AWS Open Source Blog	Create a Managed FFmpeg Workflow for Your Media Jobs Using AWS Batch	https://aws.amazon.com/blogs/opensource/create-a-managed-ffmpeg-workflow-for-your-media-jobs-using-aws-batch/	Create a Managed FFmpeg Workflow for Your Media Jobs Using AWS BatchImprove usability and get relief from managing open source FFmpeg on AWS with our open source solution to deploy FFmpeg packaged in a container and managed by AWS Batch	2023-03-21 17:45:32
AWS	AWS	The VMware on AWS Update Show - March 2023 Edition | Amazon Web Services	https://www.youtube.com/watch?v=PVJQVTqgsRw	The VMware on AWS Update Show March Edition Amazon Web ServicesWelcome to the March Edition of The VMware on AWS Update Show In this show we round up recent updates related to VMware and AWS services including new features region launches blog posts reference architectures and customer case studies We follow the round up by spending time diving a little deeper into a some of each month s key updates In the March edition we round up what s new and discuss VMware Cloud on AWS related updates to Migration Evaluator and Amazon FSx for NetApp ONTAP A roundup of all the updates covered this month can be found on AWS re Post at For more info on Migration Evaluator please visit Learn more at Subscribe More AWS videos More AWS events videos ABOUT AWSAmazon Web Services AWS is the world s most comprehensive and broadly adopted cloud platform offering over fully featured services from data centers globally Millions of customers ーincluding the fastest growing startups largest enterprises and leading government agencies ーare using AWS to lower costs become more agile and innovate faster vmwarecloudonaws vmconaws Migration AWSBackup AmazonFSX MigrationEvaluator AWS AmazonWebServices CloudComputing	2023-03-21 17:41:40
AWS	AWS	Treasury Intelligence Solutions: Managing Data Growth & Scalability with a Secure Data Lake	https://www.youtube.com/watch?v=ec6j-MaOSUc	Treasury Intelligence Solutions Managing Data Growth amp Scalability with a Secure Data LakeTIS is a cloud based platform and service for payments cash management compliance and security They help organizations simplify and streamline their global payments and liquidity management operations Their cloud based platform empowers businesses to optimize critical functions surrounding cross border and domestic payments bank connectivity cash forecasting fraud prevention payment compliance and more Corporations institutions and business vendors leverage TIS to transform how they connect with global banks and financial systems collaborate on payment processes execute outbound payments analyze cash flow compliance data and promote working capital efficiency Ultimately the TIS technology platform helps businesses improve operational efficiency lower risk manage liquidity gain strategic advantage and ultimately achieve enterprise payment optimization Check out more resources for architecting in the AWS​​​cloud AWS AmazonWebServices CloudComputing ThisIsMyArchitecture	2023-03-21 17:35:18
python	Pythonタグが付けられた新着投稿 - Qiita	DjangoをWSGI + EC2 + NGINXでデプロイしてみた	https://qiita.com/AqfKV0Y5Iw5R68W/items/4cf55572d70714c86ff9	macboo	2023-03-22 02:12:54
Linux	Ubuntuタグが付けられた新着投稿 - Qiita	DjangoをWSGI + EC2 + NGINXでデプロイしてみた	https://qiita.com/AqfKV0Y5Iw5R68W/items/4cf55572d70714c86ff9	macboo	2023-03-22 02:12:54
海外TECH	MakeUseOf	3 Reasons Why the U.S. Government Is Locking Crypto Out of Traditional Banking	https://www.makeuseof.com/reasons-why-us-government-locking-crypto-out-of-traditional-banking/	services	2023-03-21 17:55:16
海外TECH	MakeUseOf	8 Ways to Fix the “Download Failed Network Error” on Chrome	https://www.makeuseof.com/ways-to-fix-download-failed-network-error-chrome/	chrome	2023-03-21 17:45:16
海外TECH	MakeUseOf	How to Create and Publish Your Own Templates on Canva	https://www.makeuseof.com/canva-how-to-create-publish-templates/	canva	2023-03-21 17:30:17
海外TECH	MakeUseOf	Are File Thumbnails Not Showing Up in Windows 11? Here's How to Fix It	https://www.makeuseof.com/fix-thumbnails-not-showing-windows-11/	windows	2023-03-21 17:15:16
海外TECH	MakeUseOf	How Many People Can Watch Netflix at One Time Per Account?	https://www.makeuseof.com/tag/how-many-watch-netflix-account/	subscription	2023-03-21 17:15:16
海外TECH	DEV Community	[Desafio] - 10 Desafios Simples de System Design	https://dev.to/zanfranceschi/desafio-10-desafios-simples-de-system-design-c3h	Desafio Desafios Simples de System DesignConteúdo original em Ei dev Quando falamos sobre System Design écomum pensarmos em soluções complexas escalas enormes etc Sóque a maioria das empresas precisa de soluções simples Nessa thread vou propor desafios de System Design mais simples e triviais pra vocêpraticar Segue o fio ↓Disclaimer Não são desafios completos no sentido de apresentarem requisitos detalhados domínios de negócio restrições etc São mais ideias gerais pra vocêelaborar um problema solução são ideias pra talvez te inspirar a criar seu próprio desafio Bora lá Desafio Separar um Banco de Dados em DoisComo vocêsepararia um banco de dados relacional legado em dois de forma que mantivesse apenas registros de até meses num banco e registros mais antigos em outro Considere coisas como paginação busca usabilidade etc Desafio Integração via ArquivosEsse éum clássico Vocêéresponsável por definir como seráfeita a integração via arquivos GB arquivo dia entre duas empresas Qual tecnologia vocêusaria FTP VPN GCS S etc Os arquivos sópodem ser expurgados após anos Desafio Processamento Idempotente de ArquivosDesenhe um solução de processamento idempotente de arquivos grandes GB A idempotência serádo arquivo como um todo ou registro a registro Cabe tudo na memória ou seráum processamento via fluxo streaming Desafio Transformar um Processamento Síncrono de uma API em AssíncronoEsse éum clássico também Como transformar uma API que tem um processamento síncrono em assíncrono Pense em questões de status code de retorno garantia de processamento usabilidade da API etc Desafio Instrumentar Serviços para Métricas de Negócio em Tempo RealPor incrível que pareça me parece que apesar de ferramentas disponíveis muitas empresas não fazem isso ou fazem de maneira muito rudimentar Como vocêresolveria isso Dica não use logs use métricas Desafio Integração com Eventos via WebhookElabore uma solução de uma API que receba notificações de eventos via webhook Pense em tolerância àfalhas rapidez de processamento etc Questione se quem invoca o webhook faz retentativas quais status codes são aceitos etc Desafio Expor Serviços Internos para ParceirosVocêpossui uma API interna mas o negócio decidiu que iráexpô la para outras empresas algumas dezenas Como vocêexporia um serviço que estánuma rede privada para empresas parceiras cont Considere aspectos de infraestrutura de rede disponibilizar numa rede pública e controlar via firewall ACL ou via conexão privada autenticação autorização tokens de acesso limites de requisições throttling etc Desafio Alterar o Hash de Senhas num Banco de DadosVocêtem um banco de dados legado que possui registros de senhas criptografadas com MD Desenhe uma solução de migração de senhas para que sejam armazenadas com outro algoritmo p ex Argon ou Bcrypt Desafio Migração de Banco de Dados para NuvemSua empresa vai migrar pra nuvem Desenhe uma solução para manter os bancos de dados on premise e nuvem sincronizados para que seja possível usar um ambiente ou outro com uma simples configuração e de maneira rápida cont Geralmente a parte mais difícil de migrar para nuvem são os componentes que possuem estado das vezes os bancos de dados Aplicações web stateless ou com estado volátil são mais fáceis de migrar na maioria das vezes Uma estratégia de fallback de bancos pode ser uma boa Desafio Tokens Opacos de AcessoDesenhe um solução de autenticação autorização em que seja possível usar tokens opacos de acesso em mais de um serviço A emissão e invalidação expiração do token precisa ser centralizada São esses os desafios Todos que propus aqui são desafios que jáenfrentei Alguns são um pouco menos triviais mas nenhum écoisa somente de empresas gigantes referência e muitos são bem comuns de encontrarmos por aí Espero que tenha gostado da thread ️	2023-03-21 17:38:16
海外TECH	DEV Community	Encryption: Explained to a 5 Year Old 👶🏻	https://dev.to/acidop/encryption-explained-to-a-5-year-old-fci	Encryption Explained to a Year Old Encryption is a fancy word that means keeping secrets It s like when you have a secret toy that you don t want anyone else to know about You hide it somewhere that nobody can find it so it s safe and secure That s what encryption does but with information like your passwords pictures and messages How Encryption Works Imagine you want to send a secret message to your friend but you don t want anyone else to read it First you take your message and turn it into a secret code that only you and your friend can understand This code is called encrypted data To encrypt your message you can use a special tool called a cipher It s like a secret decoder ring that turns your message into a jumbled mess of letters and numbers ️‍ ️Then you send your encrypted message to your friend They use the same cipher tool to decode the message back into the original message Only your friend can do this so nobody else can read your secret message It s like you and your friend have a secret language that nobody else can speak Why Encryption is Important Encryption is important because it keeps your information safe from people who shouldn t have access to it Just like how you keep your secret toy hidden from your little brother encryption keeps your information hidden from hackers and other bad people on the internet If you have a password for your tablet or phone that s like a secret code that only you know It s a form of encryption that keeps your device secure If someone else tries to guess your password they won t be able to get in Wrap Up So there you have it encryption explained to a year old Encryption is like having a secret language that only you and your friend can speak It keeps your information safe and secure from bad people on the internet Just remember to use strong passwords and keep your secret toys hidden	2023-03-21 17:36:58
海外TECH	DEV Community	Create A Passwordless Authentication System	https://dev.to/kalashin1/create-a-passwordless-authentication-system-ci3	Create A Passwordless Authentication SystemThere is a new way of building an authentication into your backend application This approach eliminates the need for a password giving rise to the term passwordless authentication Passwordless authentication systems are becoming more popular because they offer several benefits over traditional passwords based systems For example they can provide a better user experience reduce the risk of data breaches and lower the cost of password management A passwordless authentication system can be implemented in a number of ways including by employing biometric information one time codes or public private key cryptography The best option will rely on the particular requirements of the system and the users Each method has advantages and disadvantages For this article we would use a one time code which will be sent to the users email First let s spin up our npm project run npm init y then install our dependencies for this app we would use express npm i expresslet s create our app and get our server runing index tsimport express from express const app express app listen gt console log server running on port Next we ll set up our database with Mongoose to do this first we have to install Mongoose npm i mongooseWe have to setup our mongoose schema and models which we will do below user schema jsimport Schema from mongoose export const UserSchema new Schema email type String required true Please provide your email unique true fistName String lastName String otp number timestamps true We have declared a userschema above the user schema defines some basic properties whic a user should have most importantly the email which we set to be required for all users we also ensure that two users cannot have the same emails by ensuring that emails are unique Let s create the user model to handle all of the logic user model jsimport UserSchema from user schema import model from mongoose UserSchema statics createAccount async function email firstName lastName try const user await this create email firstName lastName Generate OTP for user const otp Math floor Math random await user updateOne otp sendEmailSomehow Your otp is otp return user null catch error return null error message The snippet above creates a new user for us we generate an otp which will serve as the one time pass code which we will use to verify the user we use an email service to send the user an email I will assume that you have a third party service that will handle email delivery UserSchema statics login async function email try const user await this findOne email const otp Math floor Math random await user updateOne otp sendEmailSomehow Your otp is otp return user null catch error return null error message This snippet above handles the login process we check to find a user with an email that matches the one provided if there is a user we generate an otp for the user then send it to their email Let s write the function that will validate their otp UserSchema statics verifyOTP async function otp email try const user await this findOne email otp return user null catch error return null error message export const Users await model user UserSchema Now we have a basic setup in place we need to import the Users model inside our controllers which we will create below user controller jsimport Users from user model export const createAccount async req res gt const firstName lastName email req body const user err await Users createAccount firstName lastName email if err res status json error err res status json user We have the first controller which handles user registration set up below we set up the other controllers for login in and verifying our user token export const login async req res gt const email req body const user err await Users login email if err res status json error err res status json user export const verifyOTP async req res gt const otp req body const user err await Users verifyOTP otp if err res status json error err res status json user We have created and exported our controller functions what we need to do is to map each controller function to a route this will be done inside a route file router jsimport createAccount login verifyOTP from user controller import Router from express export const router Router router post register createAccount router post login login router post otp verifyOTP Our application is pretty done what we need to do now is to import our router and apply it to our application index js continuedimport router from router app use router Kick start your application and you have a basic setup for a password less authentication system would you like to see how we could do this but with TypeORM and MySQL as our database and fastify as our sever framework See you in the next article	2023-03-21 17:33:51
海外TECH	DEV Community	API with Typescript + Nest + TypeORM + Postgres + Docker	https://dev.to/filbraga/api-with-typescript-nest-typeorm-postgres-docker-1m81	API with Typescript Nest TypeORM Postgres DockerIn this blog post I ll show you how to set up a project using TypeScript Nest Postgres Docker and how to seed your database TypeScript is a statically typed language that is a strict syntactical superset of JavaScript It offers improved type safety and tooling support making it a popular choice for larger scale projects Nest is a framework for building efficient scalable Node js server side applications It provides a structure and a range of features that make it easier to develop and test applications Postgres is a powerful open source relational database management system that is well suited for complex data structures and large scale data processing TypeORM is an open source Object Relational Mapping ORM tool that provides a way to interact with relational databases such as MySQL PostgreSQL and SQLite It helps you to write database related code using object oriented programming in TypeScript or JavaScript instead of writing raw SQL statements TypeORM offers a lot of features such as transaction management database migrations connection pooling etc that makes it easy to work with databases in your applications Docker is a containerization platform that makes it easier to deploy and run applications in different environments We will launch a Postgres database and supporting service in docker Nest First install nest clinpm i g nestjs cliThen create a new project using the nest clinest new project nameChoose npm for package manager Next enter in the project foldercd project namePostgreSQL DatabaseInstall pgnpm install pg saveTypeORMInstall TypeOrmnpm install save nestjs typeorm typeorm postgresOpen your project with your IDEIn the app module ts add the connection to the databese with TypeOrmModule forRoot app module tsimport Module from nestjs common import TypeOrmModule from nestjs typeorm Module imports TypeOrmModule forRoot type postgres host localhost port username root password password database postgres entities dirname typeorm entities js ts synchronize true do not use in prod export class AppModule BTW you can delete app service and app controllerNow we should create our first module with nest cli nest g resource modules userschoose REST API on terminalselect yes to generate CRUD entry pointsWith the module created we should now organize our project like this create some folders called typeorm gt database entities seeds create data source ts main seed ts and user seed ts move the user entity to the entity folders src typeorm├ーdatabase│└ーdata source ts├ーseeds│└ーmain seed ts└ーentities └ーuser entity ts generated by the script insert the code bellow into the files users entity tsimport Column CreateDateColumn DeleteDateColumn Entity PrimaryGeneratedColumn UpdateDateColumn from typeorm Entity users export class User PrimaryGeneratedColumn id number Column name string Column email string Column active boolean Column birthday Date CreateDateColumn createdAt Date UpdateDateColumn updatedAt Date DeleteDateColumn deletedAt Date users service tsimport Injectable from nestjs common import User from src typeorm entities user entity import DataSource from typeorm import CreateUserDto from dto create user dto import UpdateUserDto from dto update user dto Injectable export class UsersService constructor private dataSource DataSource private userRepository this dataSource getRepository User async create createUserDto CreateUserDto return this userRepository save createUserDto async findAll Promise lt User gt return this userRepository find async findOne id number return this userRepository findOneBy id async update id number updateUserDto UpdateUserDto let user await this findOne id user user updateUserDto return await this userRepository save user async remove id number const user await this findOne id return await this userRepository softRemove user data source tsimport DataSource DataSourceOptions from typeorm export const dataSourceOptions DataSourceOptions type postgres host localhost port username root password password database postgres entities src entity js ts export default new DataSource dataSourceOptions main seed tsimport DataSource from typeorm import dataSourceOptions from database data source import User from entities user entity const dataSource new DataSource dataSourceOptions const userRepository dataSource getRepository User async function connect try if dataSource isInitialized await dataSource destroy await dataSource initialize console log Data Source has been initialized catch err console error Error during Data Source connect err async function disconnect try await dataSource destroy console log Data Source disconnected catch err console error Error during Data Source disconnect err async function seed const UserSeed gt name John Doe email john doe com active true birthday name Jane Doe email jane doe com active false birthday name Josh Doe email josh doe com active true birthday await userRepository save UserSeed console log created seeds async function runSeed await connect console log connected await seed console log seed done await disconnect console log disconnected runSeed Now we should create our docker compose yml file in the root folder and then run sudo docker compose up version services db image postgres alpine restart always environment POSTGRES USER root POSTGRES PASSWORD password POSTGRES DB postgres ports Some useful docker commands sudo docker ps to list all containerssudo docker stop my container name to stop a specific containerNow add a script to package json package json seed npx ts node src typeorm seeds main seed ts in a new terminal on the IDE run the code npm start to synchronize the databasekill the application and then run the script npm run seed to populate the databaseIts Done now if you run npm start and send a GET request on localhost users you shold get all the users from the seed	2023-03-21 17:17:42
海外TECH	DEV Community	DevOps For Developers: Continuous Integration, GitHub Actions & Sonar Cloud	https://dev.to/codenameone/devops-for-developers-continuous-integration-github-actions-sonar-cloud-ob0	DevOps For Developers Continuous Integration GitHub Actions amp Sonar CloudI first ran into the concept of Continuous Integration CI when the Mozilla project launched It included a rudimentary build server as part of the process and this was revolutionary at the time I was maintaining a C project that took hours to build and link We rarely went through a clean build which created compounding problems as bad code was committed into the project A lot has changed since those old days CI products are all over the place and as Java developers we enjoy a richness of capabilities like never before But I m getting ahead of myself…Let s start with the basics Continuous Integration is a software development practice in which code changes are automatically built and tested in a frequent and consistent manner The goal of CI is to catch and resolve integration issues as soon as possible reducing the risk of bugs and other problems slipping into production CI often goes hand in hand with Continuous Delivery CD which aims to automate the entire software delivery process from code integration to deployment in production The goal of CD is to reduce the time and effort required to deploy new releases and hotfixes enabling teams to deliver value to customers faster and more frequently With CD every code change that passes the CI tests is considered ready for deployment allowing teams to deploy new releases at any time with confidence I won t discuss continuous delivery in this post but I will go back to it as there s a lot to discuss I m a big fan of the concept but there are some things we need to monitor Continuous Integration ToolsThere are many powerful continuous integration tools Here are some commonly used tools Jenkins Jenkins is one of the most popular CI tools offering a wide range of plugins and integrations to support various programming languages and build tools It is open source and offers a user friendly interface for setting up and managing build pipelines It s written in Java and was often my “go to tool However it s a pain to manage and set up There are some “Jenkins as a service solutions that also clean up its user experience which is somewhat lacking Travis CI Travis CI is a cloud based CI tool that integrates well with GitHub making it an excellent choice for GitHub based projects Since it predated GitHub Actions it became the default for many open source projects on GitHub CircleCI CircleCI is a cloud based CI tool that supports a wide range of programming languages and build tools It offers a user friendly interface but it s big selling point is the speed of the builds and delivery GitLab CI CD GitLab is a popular source code management tool that includes built in CI CD capabilities The GitLab solution is flexible yet simple it has gained some industry traction even outside of the GitLab sphere Bitbucket Pipelines Bitbucket Pipelines is a cloud based CI tool from Atlassian that integrates seamlessly with Bitbucket their source code management tool Since it s an Atlassian product it provides seamless JIRA integration and very fluid enterprise oriented functionality Notice I didn t mention GitHub Actions which we will get to shortly There are several factors to consider when comparing CI tools Ease of Use Some CI tools have a simple setup process and user friendly interface making it easier for developers to get started and manage their build pipelines Integration with Source Code Management SCM Tools such as GitHub GitLab and Bitbucket This makes it easier for teams to automate their build test and deployment processes Support for Different Programming Languages and Build Tools Different CI tools support different programming languages and build tools so it s important to choose a tool that is compatible with your development stack Scalability Some CI tools are better suited to larger organizations with complex build pipelines while others are better suited to smaller teams with simpler needs Cost CI tools range in cost from free and open source to commercial tools that can be expensive so it s important to choose a tool that fits your budget Features Different CI tools offer distinct features such as real time build and test results support for parallel builds and built in deployment capabilities In general Jenkins is known for its versatility and extensive plugin library making it a popular choice for teams with complex build pipelines Travis CI and CircleCI are known for their ease of use and integration with popular SCM tools making them a good choice for small to medium sized teams GitLab CI CD is a popular choice for teams using GitLab for their source code management as it offers integrated CI CD capabilities Bitbucket Pipelines is a good choice for teams using Bitbucket for their source code management as it integrates seamlessly with the platform Cloud vs On PremiseThe hosting of agents is an important factor to consider when choosing a CI solution There are two main options for agent hosting cloud based and on premise Cloud based Cloud based CI solutions such as Travis CI CircleCI GitHub Actions and Bitbucket Pipelines host the agents on their own servers in the cloud This means that you don t have to worry about managing the underlying infrastructure and you can take advantage of the scalability and reliability of the cloud On premise On premise CI solutions such as Jenkins allow you to host the agents on your own servers This gives you more control over the underlying infrastructure but also requires more effort to manage and maintain the servers When choosing a CI solution it s important to consider your team s specific needs and requirements For example if you have a large and complex build pipeline an on premise solution such as Jenkins may be a better choice as it gives you more control over the underlying infrastructure On the other hand if you have a small team with simple needs a cloud based solution such as Travis CI may be a better choice as it is easy to set up and manage Agent StatefulnessStatefulness determines whether the agents retain their data and configurations between builds Stateful Agents Some CI solutions such as Jenkins allow for stateful agents which means that the agents retain their data and configurations between builds This is useful for situations where you need to persist data between builds such as when you re using a database or running long running tests Stateless Agents Other CI solutions such as Travis CI use stateless agents which means that the agents are recreated from scratch for each build This provides a clean slate for each build but it also means that you need to manage any persisted data and configurations externally such as in a database or cloud storage There s a lively debate among CI proponents regarding the best approach Stateless agents provide a clean and easy to reproduce environment I choose them for most cases and think they are the better approach Stateless agents can be more expensive too as they are slower to set up Since we pay for cloud resources that cost can add up But the main reason some developers prefer the stateful agents is the ability to investigate With a stateless agent when a CI process fails you are usually left with no means of investigation other than the logs With a stateful agent we can log into the machine and try to run the process manually on the given machine We might reproduce an issue that failed and gain insight thanks to that A company I worked with chose Azure over GitHub Actions because Azure allowed for stateful agents This was important to them when debugging a failed CI process I disagree with that but that s a personal opinion I feel I spent more time troubleshooting bad agent cleanup than I benefited from investigating a bug But that s a personal experience and some smart friends of mine disagree Repeatable BuildsRepeatable builds refer to the ability to produce the same exact software artifacts every time a build is performed regardless of the environment or the time the build is performed From a DevOps perspective having repeatable builds is essential to ensuring that software deployments are consistent and reliable Intermittent failures are the bane of DevOps everywhere and they are painful to track Unfortunately there s no easy fix As much as we d like it some flakiness finds its way into projects with reasonable complexity It is our job to minimize this as much as possible There are two blockers to repeatable builds Dependencies if we don t use specific versions for dependencies even a small change can break our build Flaky Tests tests that fail occasionally for no obvious reasons are the absolute worst When defining dependencies we need to focus on specific versions There are many versioning schemes but over the past decade the standard three number semantic versioning took over the industry This scheme is immensely important for CI as its usage can significantly impact the repeatability of a build e g with maven we can do lt dependency gt lt groupId gt group lt groupId gt lt artifactId gt artifact lt artifactId gt lt version gt lt version gt lt dependency gt This is very specific and great for repeatability However this might become out of date quickly We can replace the version number with LATEST or RELEASE which will automatically get the current version This is bad as the builds will no longer be repeatable However the hard coded three number approach is also problematic It s often the case that a patch version represents a security fix for a bug In that case we would want to update all the way to the latest minor update but not newer versions E g For that previous case I would want to use version implicitly and not This trades off some repeatability for minor security updates and bugs But a better way would be to use the Maven Versions Plugin and periodically invoke the mvn versions use latest releases command This updates the versions to the latest to keep our project up to date This is the straightforward part of repeatable builds The difficulty is in the flaky tests This is such a common pain that some projects define a “reasonable amount of failed tests and some projects re run the build multiple times before acknowledging failure A major cause of test flakiness is state leakage Tests might fail because of subtle side effects left over from a previous test Ideally a test should clean up after itself so each test will run in isolation In a perfect world we would run every test in a completely isolated fresh environment but this isn t practical It would mean tests would take too long to run and we would need to wait a great deal of time for the CI process We can write tests with various isolation levels sometimes we need complete isolation and might need to spin up a container for a test But most times we don t and the difference in speed is significant Cleaning up after tests is very challenging Sometimes state leaks from external tools such as the database can cause a flaky test failure To ensure repeatability of failure it is a common practice to sort the test cases consistently this ensures future runs of the build will execute in the same order This is a hotly debated topic Some engineers believe that this encourages buggy tests and hides problems we can only discover with a random order of tests From my experience this did indeed find bugs in the tests but not in the code My goal isn t to build perfect tests and so I prefer running the tests in a consistent order such as alphabetic ordering It is important to keep statistics of test failures and never simply press retry By tracking the problematic tests and the order of execution for a failure we can often find the source of the problem Most times the root cause of the failure happens because of faulty cleanup in a prior test which is why the order matters and its consistency is also important Developer Experience and CI PerformanceWe re here to develop a software product not a CI tool The CI tool is here to make the process better Unfortunately many times the experience with the CI tool is so frustrating that we end up spending more time on logistics than actually writing code Often I spent days trying to pass a CI check so I could merge my changes Every time I get close another developer would merge their change first and would break my build This contributes to a less than stellar developer experience especially as a team scales and we spend more time in the CI queue than merging our changes There are many things we can do to alleviate these problems Reduce duplication in tests over testing is a common symptom that we can detect with coverage tools Flaky test elimination I know deleting or disabling tests is problematic Don t do that lightly But if you spend more time debugging the test than debugging your code it s value is debatable Allocate additional or faster machines for the CI process Parallelize the CI process We can parallelize some build types and some tests Split the project into smaller projects notice that this doesn t necessarily mean microservices Ultimately this connects directly to the productivity of the developers But we don t have profilers for these sorts of optimizations We have to measure each time this can be painstaking GitHub ActionsGitHub Actions is a continuous integration continuous delivery CI CD platform built into GitHub It is stateless although it allows the self hosting of agents to some degree I m focusing on it since it s free for open source projects and has a decent free quota for closed source projects This product is a relatively new contender in the field it is not as flexible as most other CI tools mentioned before However it is very convenient for developers thanks to its deep integration with GitHub and stateless agents To test GitHub Actions we need a new project which in this case I generated using JHipster with the configuration seen here I created a separate project that demonstrates the use of GitHub Actions here Notice you can follow this with any project although we include maven instructions in this case the concept is very simple Once the project is created we can open the project page on GitHub and move to the actions tab We will see something like this In the bottom right corner we can see the Java with Maven project type Once we pick this type we move to the creation of a maven yml file as shown here Unfortunately the default maven yml suggested by GitHub includes a problem This is the code we see in this image name Java CI with Mavenon push branches master pull request branches master jobs build runs on ubuntu latest steps uses actions checkout v name Set up JDK uses actions setup java v with java version distribution temurin cache maven name Build with Maven run mvn B package file pom xml Optional Uploads the full dependency graph to GitHub to improve the quality of Dependabot alerts this repository can receive name Update dependency graph uses advanced security maven dependency submission action eaabceaebdedbdThe last three lines update the dependency graph But this feature fails or at least it failed for me Removing them solved the problem The rest of the code is standard YAML configuration The pull request and push lines near the top of the code declare that builds will run on both a pull request and a push to the master This means we can run our tests on a pull request before committing If the test fails we will not commit We can disallow committing with failed tests in the project settings Once we commit the YAML file we can create a pull request and the system will run the build process for us This includes running the tests since the “package target in maven runs tests by default The code that invokes the tests is in the line starting with “run near the end This is effectively a standard unix command line Sometimes it makes sense to create a shell script and just run it from the CI process It s sometimes easier to write a good shell script than deal with all the YAML files and configuration settings of various CI stacks It s also more portable if we choose to switch the CI tool in the future Here we don t need it though since maven is enough for our current needs We can see the successful pull request here To test this out we can add a bug to the code by changing the “ api endpoint to “ myapi This produces the failure shown below It also triggers an error email sent to the author of the commit When such a failure occurs we can click the “Details link on the right side This takes us directly to the error message you see here Unfortunately this is typically a useless message that does not provide help in the issue resolution However scrolling up will show the actual failure which is usually conveniently highlighted for us as seen here Note that there are often multiple failures so it would be prudent to scroll up further In this error we can see the failure was an assertion in line of AccountResourceIT which you can see here note that the line numbers do not match In this case line is the last line of the method Test Transactionalvoid testActivateAccount throws Exception final String activationKey some activation key User user new User user setLogin activate account user setEmail activate account example com user setPassword RandomStringUtils randomAlphanumeric user setActivated false user setActivationKey activationKey userRepository saveAndFlush user restAccountMockMvc perform get api activate key activationKey activationKey andExpect status isOk user userRepository findOneByLogin user getLogin orElse null assertThat user isActivated isTrue This means the assert call failed isActivated returned false and failed the test This should help a developer narrow down the issue and understand the root cause Going BeyondAs we mentioned before CI is about developer productivity We can go much further than merely compiling and testing We can enforce coding standards lint the code detect security vulnerabilities and much more In this example let s integrate Sonar Cloud which is a powerful code analysis tool linter It finds potential bugs in your project and helps you improve code quality SonarCloud is a cloud based version of SonarQube that allows developers to continuously inspect and analyze their code to find and fix issues related to code quality security and maintainability It supports various programming languages such as Java C JavaScript Python and more SonarCloud integrates with popular development tools such as GitHub GitLab Bitbucket Azure DevOps and more Developers can use SonarCloud to get real time feedback on the quality of their code and improve the overall code quality On the other hand SonarQube is an open source platform that provides static code analysis tools for software developers It provides a dashboard that shows a summary of the code quality and helps developers to identify and fix issues related to code quality security and maintainability Both SonarCloud and SonarQube provide similar functionalities but SonarCloud is a cloud based service and requires a subscription while SonarQube is an open source platform that can be installed on premise or on a cloud server For simplicity s sake we will use SonarCloud but SonarQube should work just fine To get started we go to sonarcloud io and sign up Ideally with our GitHub account We are then presented with an option to add a repository for monitoring by Sonar Cloud as shown here When we select the Analyze new page option we need to authorize access to our GitHub repository The next step is selecting the projects we wish to add to Sonar Cloud as shown here Once we select and proceed to the setup process we need to pick the analysis method Since we use GitHub Actions we need to pick that option in the following stage as seen here Once this is set we enter the final stage within the Sonar Cloud wizard as seen in the following image We receive a token that we can copy entry that is blurred in the image we will use that shortly Notice there are also default instructions to use with maven that appear once you click the button labeled “Maven Going back to the project in GitHub we can move to the project settings tab not to be confused with the account settings in the top menu Here we select “Secrets and variables as shown here In this section we can add a new repository secret specifically the SONAR TOKEN key and value we copied from the SonarCloud as you can see here GitHub Repository Secrets are a feature that allows developers to securely store sensitive information associated with a GitHub repository such as API keys tokens and passwords which are required to authenticate and authorize access to various third party services or platforms used by the repository The concept behind GitHub Repository Secrets is to provide a secure and convenient way to manage and share confidential information without having to expose the information publicly in code or configuration files By using secrets developers can keep sensitive information separate from the codebase and protect it from being exposed or compromised in case of a security breach or unauthorized access GitHub Repository Secrets are stored securely and can only be accessed by authorized users who have been granted access to the repository Secrets can be used in workflows actions and other scripts associated with the repository They can be passed as environment variables to the code so that it can access and use the secrets in a secure reliable way Overall GitHub Repository Secrets provide a simple and effective way for developers to manage and protect confidential information associated with a repository helping to ensure the security and integrity of the project and the data it processes We now need to integrate this into the project First we need to add these two lines to the pom xml file Notice that you need to update the organization name to match your own These should go into the section in the XML lt sonar organization gt shai almog lt sonar organization gt lt sonar host url gt lt sonar host url gt Notice that the JHipster project we created already has SonarQube support which should be removed from the pom file before this code will work After this we can replace the “Build with Maven portion of the maven yml file with the following version name Build with Maven env GITHUB TOKEN secrets GITHUB TOKEN Needed to get PR information if any SONAR TOKEN secrets SONAR TOKEN run mvn B verify org sonarsource scanner maven sonar maven plugin sonar Dsonar projectKey shai almog HelloJHipster packageOnce we do that SonarCloud will provide reports for every pull request merged into the system as shown here We can see a report that includes the list of bugs vulnerabilities smells and security issues Clicking every one of those issues leads us to something like this Notice that we have tabs that explain exactly why the issue is a problem how to fix it and more This is a remarkably powerful tool that serves as one of the most valuable code reviewers in the team Two additional interesting elements we saw before are the coverage and duplication reports SonarCloud expects that tests will have code coverage trigger of the code in a pull request this is high and can be configured in the settings It also points out duplicate code which might indicate a violation of the Don t Repeat Yourself DRY principle FinallyCI is a huge subject with many opportunities to improve the flow of your project We can automate the detection of bugs Streamline artifact generation automated delivery and so much more But in my humble opinion the core principle behind CI is developer experience It s here to make our lives easier When it is done badly the CI process can turn this amazing tool into a nightmare Passing the tests becomes an exercise in futility We retry again and again until we can finally merge We wait for hours to merge because of slow crowded queues This tool that was supposed to help becomes our nemesis This shouldn t be the case CI should make our lives easier not the other way around	2023-03-21 17:13:11
海外TECH	DEV Community	APIRank.dev - we crawled and ranked all public APIs on the internet 🔭	https://dev.to/tristankalos/apirankdev-we-crawled-and-ranked-all-public-apis-on-the-internet-1iho	APIRank dev we crawled and ranked all public APIs on the internet tl dr we Escape scanned public APIs on the internet with our in house feedback driven exploration tech and ranked them using security performance reliability and design criteria The results are public on APIrank dev You can also request to index your own API for free and see how it compares to others Why APIrank During a YC meetup I spoke with a fellow founder that told me how hard it was to pick the right external APIs to use within your own projects It s true that as developers and hackers we rely more on external services for building our products We interact with those vendors services through their public APIs which often become a central part of our stacks Yet no good resource existed to compare the quality of similar vendors public APIs to help engineering product teams pick the right provider What if there was a website that would help you compare the performance reliability security and design of different vendors public APIs Well say hello to apirank dev Why is ranking public APIs hard Automating the audit of public APIs is a very hard problem First we needed to find all the public APIs and their specifications mostly OpenAPI files We used several different strategies to fetch OpenAPI specifications Crawl API repositories like apis guruCrawl github for openapi json and openapi yaml filesA cool google dork Those strategies enabled us to gather around OpenAPIs specs Then lies the hard part of the problem We want to dynamically evaluate the security performance and reliability of those APIs But APIs take parameters that are tightly coupled to the underlying business logic A naive automated would also not work putting random data in parameters would likely not pass the API s validation layer thus giving us little insight into the real API behavior Manually creating tests for each API is also not sustainable it would take years for our people team We needed to do it in an automated way Fortunately our main R amp D efforts at Escape aimed to generate legitimate traffic against any API efficiently That s how we developed Feedback Driven API Exploration a new technique that quickly asses the underlying business logic of an API by analyzing responses and dependencies between requests We did a more in depth blog post about it We originally developed this technology for advanced API security testing But from there it was super easy also to test the performance and the reliability of APIs How we ranked APIs ️⃣️⃣️⃣Now that we have a scalable way to gather exciting data from public APIs we need to find a way to rank them And this ranking should be meaningful to developers when choosing their APIs We decided to rank APIs using the following five criteria Security PerformanceReliabilityDesignPopularityAn API s security score is computed as the combination of two sub scores the number of OWASP top vulnerabilities and the number of personally identifiable information PII leaks detected by our scanner The performance score is derived from the median response time of the API sometimes referred to as p The reliability score is derived from the number of inconsistent server responses either server errors or non conforming return values The design score reflects the quality of the specification file Having a high quality specification file with up to date types and examples helps developers understand the API and tools to produce relevant documentation The popularity score is computed from the number of references to the API found online If you are curious about your API s performance you can ask us to index your API on APIrank dev Our ask Ranking all public APIs on the internet is a massive project and we would gladly welcome help from the community You can help us by Giving your feedback on our ranking criteria and proposing new onesSending us Public APIs to add to our indexSharing your favorite API s score on social media	2023-03-21 17:07:57
Apple	AppleInsider - Frontpage News	Apple seeds developer release candidate for iOS and iPadOS 16.4	https://appleinsider.com/articles/23/03/21/apple-seeds-fifth-developer-beta-for-ios-and-ipados-164?utm_medium=rss	Apple seeds developer release candidate for iOS and iPadOS Developers can now download the release candidate fifth beta version of the iOS and iPadOS operating systems for new emojis and more Apple updates beta softwareDevelopers taking part in the beta can get the most recent builds either by updating gear that is already running the beta operating systems or by visiting the Apple Developer Center Public beta versions are often made available via the Apple Beta Software Program shortly after their developer counterparts Read more	2023-03-21 17:38:57
Apple	AppleInsider - Frontpage News	Apple issues release candidate developer beta for macOS Ventura 13.3	https://appleinsider.com/articles/23/03/21/apple-issues-release-candidate-developer-beta-for-macos-ventura-133?utm_medium=rss	Apple issues release candidate developer beta for macOS Ventura On Tuesday Apple seeded the fifth and possibly final beta of macOS Ventura for developers to test macOS Ventura beta is outBy visiting the Apple Development Center or updating Macs that are currently running beta software developers who have signed up for the beta program can download the release candidate build The Apple Beta Software Program provides access to public beta versions which quickly follow developer versions Read more	2023-03-21 17:38:04
Apple	AppleInsider - Frontpage News	Developer release candidates for tvOS 16.4 & watchOS 9.4 are out	https://appleinsider.com/articles/23/03/21/fifth-developer-betas-for-tvos-164-watchos-94-are-out?utm_medium=rss	Developer release candidates for tvOS amp watchOS are outApple has released the release candidates for watchOS and tvOS as it winds down testing the new updates with developers Round of betasDevelopers can download the release candidate builds from the Apple Developer Center webpage or update hardware that is already running a beta operating system Beta software for the public will soon follow the developer version which people can access via the Apple Beta Software Program or by updating their beta devices Read more	2023-03-21 17:36:42
Apple	AppleInsider - Frontpage News	NewQ dock adds up to three displays on any M1 & M2 Mac	https://appleinsider.com/articles/23/03/21/newq-dock-adds-up-to-three-displays-on-any-m1-m2-mac?utm_medium=rss	NewQ dock adds up to three displays on any M amp M MacThe newest product from NewQ is a in USB C docking station that can connect up to three K monitors even on an M Mac The docking station has portsWith W of power delivery the dock includes nearly any port users might need for their workspace For example it can provide up to W of power to charge a MacBook and the W port can power an iPhone Read more	2023-03-21 17:34:26
海外TECH	Engadget	Google Bard AI hands-on: A work in progress with plenty of caveats	https://www.engadget.com/google-bard-ai-hands-on-a-work-in-progress-with-plenty-of-caveats-170956025.html?src=rss	Google Bard AI hands on A work in progress with plenty of caveatsGoogle has made Bard more widely available to users in the US and the UK today and I have been spending some time with the company s chatbot to see how its generative AI compares to ChatGPT and Bing AI nbsp Like we saw in the screenshots Google provided with today s announcement the interface here is very similar to Bing AI in that there is a wide text input at the bottom of the screen and a dialogue based layout But there are a few key differences between Google s and Microsoft s offerings nbsp With Bing AI you ll have to either hit Chat or scroll up from search results to get to the conversation page whereas you don t have to do that for the Bard website Microsoft has a broom icon to the left of the input bar to clear the slate and start a new topic while Google has a column on the left with options for quot Reset chat quot quot Bard Activity quot quot FAQ and quot Help amp Support quot nbsp It s also worth noting the language Google painstakingly uses here Once I navigated to the website I was greeted with an alert reminding me that quot Bard is an experiment quot It asks users to remember two things quot Bard will not always get it right quot and that quot Bard will get better with your feedback quot Even after you click quot Got it quot and that reminder goes away there s a line of fine print below the input field that states quot Bard may display inaccurate or offensive information that doesn t represent Google s views quot After the embarrassing blunders Bard has already made so far it s understandable and mildly funny to see all these disclaimers nbsp ScreenshotThat s all fairly unobtrusive though and doesn t really affect my experience with Bard There are however a few functional differences here compared to Bing AI For one thing Bing AI on desktop doesn t offer speech to text in its input bar though the app does while Bard can tap your laptop s microphone for you to dictate your queries I have a tendency to ramble when speaking so I prefer to type but I did use this tool to read out some questions to Bard and can verify it worked Probably the biggest difference between Bard and Bing AI so far is the fact that Google includes an easy way to see alternative responses within the conversation You can click the dropdown arrow next to quot View other drafts quot at the top left of each chat bubble and see some other suggestions I asked Bard to create a minute workout plan for the core and abs that excludes sit ups which is something I had asked Bing AI at Microsoft s suggestion before I appreciate that Bard was able to give me a somewhat sound routine to do that did target those areas and leave out sit ups but was more impressed by the two other options I could look at nbsp Draft suggested three sets of to reps of plank side plank Russian twists and mountain climbers along with light instructions on how to do each But its guidance for the planks and side planks was too simplistic For both of those it gave tips on form followed by quot Hold this position for as long as you can quot That is very different from person to person and can really affect the duration of the supposed minute workout It s also unclear if Bard is saying you should hold planks for as long as you can for to times for three sets either Unlike Bing Google s chatbot doesn t always cite its sources so it wasn t easy for me to get clarification on these suggestions Draft for example did list two sources though it didn t have inline references for specific parts of the proposed workout The second option did have some better instructions though It came up with four exercises to be performed in a circuit i e one after another instead of finishing three sets of each exercise before moving on to the next one These were plank Russian twists side plank bicycle crunches and hip raises ScreenshotThe instructions for plank were still as simplistic but at least for side plank this time Bard said to hold your body in place for seconds before switching sides Finally the third draft was given in a very different manner Instead of telling you to do four or five specific exercises for a few sets of a number of reps this time Bard offered a list of quot plank variations quot followed by guidance on how to do quot crunches and leg raises quot and some cooldown stretches At the top of this plan after minutes of warmup activities the chatbot simply said quot do minutes of plank variations minutes of crunches and leg raises then minutes of cooldown stretches quot nbsp This story is developing please refresh for updates This article originally appeared on Engadget at	2023-03-21 17:09:56
海外科学	NYT > Science	Yellowstone’s Obsidian Cliff: Humanity’s Tool Shed for the Last 11,500 Years	https://www.nytimes.com/2023/03/20/science/yellowstone-indigenous-people-obsidian.html	Yellowstone s Obsidian Cliff Humanity s Tool Shed for the Last YearsX ray technology has allowed researchers a glimpse at the reaches of the Yellowstone landmark s prized stone and its importance to Indigenous people	2023-03-21 17:44:32
海外科学	NYT > Science	The Clues Floating in a Volcano’s Smoke Rings	https://www.nytimes.com/2023/03/21/science/volcanoes-smoke-rings-vapor.html	ringsthe	2023-03-21 17:25:43
ニュース	BBC News - Home	Partygate: I misled MPs but not intentionally, says Boris Johnson	https://www.bbc.co.uk/news/uk-politics-65012965?at_medium=RSS&at_campaign=KARANGA	boris	2023-03-21 17:35:02
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ニュース	BBC News - Home	Olivia Pratt-Korbel murder-accused was 'high-level' drug dealer	https://www.bbc.co.uk/news/uk-england-merseyside-65025221?at_medium=RSS&at_campaign=KARANGA	cashman	2023-03-21 17:27:13
ニュース	BBC News - Home	Ed Sheeran 'didn't want to live' after his friends Jamal Edwards and Shane Warne died	https://www.bbc.co.uk/news/entertainment-arts-65031622?at_medium=RSS&at_campaign=KARANGA	shane	2023-03-21 17:30:58
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ニュース	BBC News - Home	Manchester United sale: Revised bids for club due on Wednesday evening	https://www.bbc.co.uk/sport/football/65024583?at_medium=RSS&at_campaign=KARANGA	Manchester United sale Revised bids for club due on Wednesday eveningProspective owners of Manchester United are told they have until GMT on Wednesday to submit second revised bids for the club as the takeover saga accelerates	2023-03-21 17:28:17
ニュース	BBC News - Home	Women's Premier League: Delhi Capitals beat UP Warriorz to progress straight to final	https://www.bbc.co.uk/sport/cricket/65025600?at_medium=RSS&at_campaign=KARANGA	warriorz	2023-03-21 17:31:38
ビジネス	ダイヤモンド・オンライン - 新着記事	「終わりよければ、すべてよし」。最後にハッピーエンドであることが幸福感には重要 - シンプルで合理的な人生設計	https://diamond.jp/articles/-/319546	人生設計	2023-03-22 02:50:00
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