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Continuous Integration and Delivery with Semaphore on GitHub Marketplace

We’re happy to announce that Semaphore’s continuous integration and continuous delivery service is now part of the GitHub Marketplace. GitHub is a key platform for millions of development teams, and it gathers one of the largest communities of developers. We’re proud to be one of the partners featured on their Marketplace.

The Marketplace allows you to sign up for the best-in-class developer tools directly through GitHub.This means that you won’t need to set up and use multiple accounts across your development workflow.

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Continuous Integration with Docker Compose

This is a guest post by Nigel Brown, an independent Docker specialist who writes, teaches, and consults on all things Docker-related. Based in the UK, he travels regularly, and can be found at windsock.io, and on GitHub.

If you take heed of any of the many reports relating to cloud-native computing, then you'd be forgiven for thinking that every organization, large or small, is well on the way to a microservices-oriented application nirvana. The truth is, of course, that a good number of organizations have started the journey, but still maintain traditional monolithic applications, and have some way to go in the journey. Is it possible to take advantage of the new set of cloud-native technologies such as Docker, when you have applications of mixed architectural styles?

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Faster Rails: Eliminating N+1 queries

This article is part of our Faster Rails series. Check out the previous article about index creation on large tables.

Rails does not scale well – this argument is often used to downplay the worth of the language and the framework. Yet, many businesses from small startups to platforms with millions of users use it as the backbone of their operations. A good question to ask ourselves is whether Rails simply can't scale, or if the issue is hidden somewhere deeper.

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Tips on Treating Flakiness in your Rails Test Suite

To say that flaky tests are annoying is to put it mildly. They can decimate both a developer's time and productivity, are notoriously difficult to deal with, and are unfortunately a reality of software development.

Our collegues have written more general posts in the past about dealing with flaky tests and why it is important. I would encourage you to read them. On the other hand, I will be focusing on sharing the experience I have gathered after about a year of dealing with flaky tests while working on a Rails application.

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Visualizing continuous integration, continuous delivery, and continuous deployment View diagram in full screen

Continuous integration, continuous deployment, and continuous delivery are like vectors that have the same direction, but different magnitude. Their goal is the same: make our software development and release process faster and more robust.

The key difference between the three is in the scope of automation applied. What gets people who are new to the field confused is that they are not mutually exclusive, but include each other, like Russian dolls.

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Faster Rails: Indexing Large Database Tables Without Downtime

This article is part of our Faster Rails series. Check out the previous article about proper database indexing.

As the scope and size of a Rails project grows, actions that were blazingly fast can become slow, and even downright unacceptable. The cause behind this issue can be an exponential growth of your database tables that makes lookups and updates much slower. If this is the case, adding missing indexes to your database is a cheap and easy way to drastically improve the performance of your application.

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