• Continuous Drupal: Maintaining a Drupal Website With Docker, Git & Composer

    Many moons ago, I use to host a Drupal website on GoDaddy Shared Hosting, managing files with FTP and duplicating the MySQL database every once in awhile as “backups”. How many things wrong can you find in that sentence? In 2017, there are many tools and best practices that allow us to maintain a Drupal site efficiently and scale across team members as well as infrastructure. Starting a Drupal website today using these tools and practices allows developing with Drupal to happen with increased velocity. Furthermore, if you decide to implement CI into your Drupal site later on, having your site set up with this stack will make that possible.

    In this first post of a three-part series, we’re going to cover how we can use Docker, Git, Composer, and Drush to maintain a Drupal 8 website intelligently and efficiently.

    Continue reading “Continuous Drupal: Maintaining a Drupal Website With Docker, Git & Composer”


  • Dev Horror Stories, Part II

    Last year for Halloween, we put the call out for tales from the developer crypts that have kept haunting you, lo these many years.

    We had so much fun we decided to do it again, and the timing proved eerie…

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    Continue reading “Dev Horror Stories, Part II”


  • Manual Job Approval and Scheduled Workflow Runs

    In CircleCI 2.0, teams now have more flexibility than ever in how they choose to run Workflows. Your jobs can be complex (or as simple as you’d like) and jobs don’t necessarily run sequentially.

    When we delivered Workflows, we wanted to offer you a way to break up your jobs and choose when and how you’d like to orchestrate your configurations. BUT you were still stuck– it was still up to you to figure out a way to run your jobs in a way that doesn’t break anything, or that you’re not wasting time waiting for them to run. You were forced to make many separate decisions about how and when to run jobs, even jobs you ran daily.

    Continue reading “Manual Job Approval and Scheduled Workflow Runs”


  • How to Continuously Deploy a Chrome Extension

    Google Chrome is the most-used browser on the Internet. And people are creating Chrome Extensions for all kinds of use-cases. Within 24 hours of Twitter announcing their 280 character tweets test, a new Chrome Extension collapsing tweets back to 140 characters was born. Within days of the hurricane in Puerto Rico, a $0.99 extension called Donate to Puerto Rico was created, showcasing beautiful images of the island, with all proceeds going towards charities helping rehabilitate the island.

    In a space that moves this quickly, we can automate the delivery of features, bug fixes, and security patches with Continuous Deployment. Google’s Chrome Developer Docs has a lot of information but doesn’t include anything on Continuous Integration or provide examples for automated deployment. We’ll cover one example in this post along with how we can tackle development environment challenges and versioning.

    Continue reading “How to Continuously Deploy a Chrome Extension”


  • A Letter to Future CircleCI Employees

    What follows is a letter to potential CircleCI employees, from our Head of Human Resources, David Mann.

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    Dear CircleCI Candidates,

    I wanted to share our philosophy and standards around the hiring process to give you more clarity about what you should expect from us, and what we’ll look for from you.

    Overall, know this: we respect you. And we’re honored you’re interested in joining our team.

    To make the interview flow go smoothly, we have some standards we live by. We’re not perfect, but we do our best to make the getting-to-know-each-other process as enjoyable as possible. And as you consider joining our team, I want to share with you the thinking behind our methodology.

    Continue reading “A Letter to Future CircleCI Employees”


  • Reducing Microservice Overhead with Shared Libraries

    The importance of maintaining version dependencies for your microservice architecture

    Scaling a microservice architecture has a number of challenges. You’ll hear people talk about having “thousands of services” where they get to “have the right tools for the job” all the way down to their languages. This is all well and good, but thousands of things are not always great.

    For instance, things I would rather not have thousands of:

    • Log formats
    • Spider-man reboots
    • Database access patterns
    • Metrics dashboards I need to maintain
    • Stats publishing formats
    • Recipes including the words “Jello” and “Salad” (no, this was not okay, 1950s. You gave us the birth of NASA, but this almost cancels it out)
    • Measurement standards
    • Health check endpoints
    • RabbitMQ access patterns

    And at the top of the list: Java Maven Dependencies

    Continue reading “Reducing Microservice Overhead with Shared Libraries”


  • Getting the Most out of Docker and Workflows, Part 2: All About Workflows

    In the previous installment, we saw how Docker images add power and customization to the build process. In this installment we’ll show you how to amplify that power by using the CircleCI 2.0 Workflows feature.

    Workflows in detail

    Simply stated, Workflows adds a simple coordination layer between jobs. Let’s start by visualizing a simple workflow:

    Workflows DAG Workflows DAG

    Continue reading “Getting the Most out of Docker and Workflows, Part 2: All About Workflows”


  • Bringing Digital Transformation to the Enterprise: Why It’s Important that Big Organizations are Now Paying Attention to CI

    This week, leading research firm Forrester released their first-ever Forrester Wave for Continuous Integration. Our team at CircleCI spent a considerable amount of time working with the research team at Forrester, and we’re proud to be named a leader in the space. You can go read the report here, but there’s a larger point we think is worth exploring: why is there so much attention on continuous integration right now? Why are Forrester’s clients asking them to provide research and analysis on which CI tools and companies are worth paying attention to?

    Continue reading “Bringing Digital Transformation to the Enterprise: Why It’s Important that Big Organizations are Now Paying Attention to CI”


  • Deep Diving into CircleCI Workspaces


    This post is a follow-on of our overview of persisting data in Workflows. To learn all about how to best use workspaces, caching and artifacts, read our introductory post here.


    Workspaces are a feature of Workflows and are used to move data from a job in a Workflow to subsequent jobs.

    Diagram-v3-Workspaces.png

    The name “workspace” may conjure up an image of a single storage location which jobs can add to and remove from at will. However, Workflows can introduce a lot of concurrency into a build process, and there is no defined order that concurrent jobs run in. In these circumstances a single mutable storage location leads to jobs flip-flopping from pass to fail in different workflow runs since they never get a consistent view of the workspace contents. This significantly impacts your ability to get a repeatable build process if your workflow has concurrent jobs.

    Continue reading “Deep Diving into CircleCI Workspaces”


  • Persisting Data in Workflows: When to Use Caching, Artifacts, and Workspaces

    CircleCI 2.0 provides a number of different ways to move data into and out of jobs, persist data, and with the introduction of Workspaces, move data between jobs. Using the right feature for the right task will help speed up your builds, improve repeatability, and improve efficiency.

    The benefit of faster CI runs will be clear to anybody who’s waited for the CI to go green.

    Repeatability is also important. A repeatable CI process means that if you run the same process again against the same SHA from your repo, you will get the same result. When a CI process isn’t repeatable you’ll find yourself wasting time re-running jobs to get them to go green.

    Continue reading “Persisting Data in Workflows: When to Use Caching, Artifacts, and Workspaces”


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