CircleCI Blog

By Angel Rivera
Aug 17, 2018
How to build a CI/CD pipeline with Docker
I recently gave a talk at DockerCon and it was focused on showing the audience how to implement a CI/CD pipeline into their codebase with very little effort. In this post I’ll walk through the demo code and CircleCI config that I used in my talk and demonstrate how to implement CI/CD pipelines into your code base.

This post will cover:
- A simple unit test for a Python flask application
- How to implement a CI/CD pipeline in the codebase using a CircleCI config file in the project
- Building a Docker image
- Pushing the Docker image to Docker Hub
- Kicking off a deployment script which will run the application in Docker container on a Digital Ocean server
Continue reading “How to build a CI/CD pipeline with Docker”
- Engineering
By Ricardo N Feliciano
Aug 8, 2018
Deploying from CircleCI to Linode and other VPS providers

The ultimate goal of building and testing software is generally to deploy that software. The official CircleCI blog and many community blogs showcase examples on deploying to Kubernetes clusters, pushing to Docker registries, uploading to AWS S3, and even new serverless techniques. However, for solo developers or even small companies, using large deployment platforms like these is not always practical.

But there are other options.

In this blog post we’re going to cover a few ways to deploy your software to traditional Virtual Private Servers (VPS) such as those provided by Linode, DigitalOcean, or Vultr.

Continue reading “Deploying from CircleCI to Linode and other VPS providers”
- Engineering
By June Jung
Aug 1, 2018
Moving to DevOps: what tools do you really need?

DevOps has been the latest in a long succession of problem-solving processes that each come with a digital garage full of tools: CI/CD systems, testing frameworks, monitoring tools, and security audit tools to name a few. Which of these tools do you need? Which will solve the problems, pains, and slowdowns your organization faces?

Continue reading “Moving to DevOps: what tools do you really need?”
- Industry
By Rob Zuber
Jul 31, 2018
Incident postmortem for July 19: what happened and what's next

On July 19, CircleCI faced a sitewide outage which left thousands of teams unable to test and deploy builds for the better part of a day. This outage affected the productivity of many development teams, and surely caused a few missed deadlines. We value the trust our customers place in us and are deeply sorry for the effect this had on their work. For those interested, we want to give more details as to what happened, why it happened, and what we’re doing about it.

Continue reading “Incident postmortem for July 19: what happened and what's next”
- Engineering
By Rose Kaplan-Bomberg
Jul 27, 2018
Wide World of Workflows: How we built our Docker convenience images

Our workflows blog series has been exploring some of workflows’ major feature sets—job orchestration, multi-executor support, and control flow—by spotlighting open-source examples from CircleCI customers like Artsy, DataDog, Facebook (React Native), Google (Google Cloud), and Mapbox.

To wrap things up, we wanted to turn the spotlight on, well, ourselves, and talk about how we’re using workflows internally. Most of our codebase is not open source, but our circleci-images repository is—and it’s a great example of what you can accomplish with the entire workflows toolset at your disposal.

Continue reading “Wide World of Workflows: How we built our Docker convenience images”
- Engineering
By Kunal Jain
Jul 25, 2018
Wide World of Workflows: control

In our previous posts, we explored the benefits of job orchestration, or whether you run your jobs one at a time or in parallel; and multi-executor workflows, a feature which lets you run jobs across different platforms, languages and resource classes in one workflow. Now, we’ll explore various ways to further control your workflows, using branch and tag filtering, and different approval options.

Continue reading “Wide World of Workflows: control”
- Engineering
By Kunal Jain
Jul 24, 2018
Wide World of Workflows: multi-executor support

In our last post, we covered parallel and sequential job orchestrations, and why teams might choose one or the other. In this post, we’ll be diving into multi-executor workflows.

What do we mean by multi-executor?

We sometimes refer to multi-platform support, meaning you can have the flexibility to run your jobs on different platforms such as Linux or macOS. Workflows provide teams the same modularity to run different languages within the same workflow. Additionally, they allow you to select from multiple resource classes to suit your job.

Continue reading “Wide World of Workflows: multi-executor support”
- Engineering
By Kunal Jain
Jul 23, 2018
Wide World of Workflows: job orchestration

We built workflows to free teams to run their builds in any way they choose. Workflows enable enormous customization, but there are also many decisions to be made: Should you opt for sequential or parallel jobs? How should you handle testing across multiple languages? And should you set up any automatic actions if a test fails?

We wanted to showcase some of the many things workflows can do for you. But instead of just telling you how you could set your configuration up, we wanted to show you how real development teams are using workflows right now to ship applications.

Continue reading “Wide World of Workflows: job orchestration”
- Engineering
By Ricardo N Feliciano
Jul 13, 2018
Automate GitHub Releases with CircleCI

Releases is a GitHub feature that allows you to present significant snapshots of your code, marked with a git tag, in GitHub’s nice UI. If you’re not currently using releases, I want to show you why you might want to, and how to implement them automatically.

With releases, you get what tags provide–a version number and description–but you also get a longer section for release notes and a place to store and display release artifacts. This means your software’s binary, .deb, .rpm, and AppImage files will be hosted by GitHub for each release, providing a convenient place for users to install your software.

In this post, I will show you how to create releases within CircleCI. For a more general overview, see GitHub’s doc on creating releases.

Continue reading “Automate GitHub Releases with CircleCI”
- Engineering
By CircleCI
Jul 2, 2018
Continuous package publishing, part II: automated npm publishing with CircleCI and packagecloud

Overview

In this post, we’ll go over each step in building a basic software delivery pipeline. To do this, we’ll provide some examples to demonstrate an automated software delivery process with continuous delivery using CircleCI as a continuous integration server, and a package repository on packagecloud.

To learn more about fundamental concepts around software packages and package management and how to combine them with CI/CD to build a software delivery pipeline, read the previous post Continuous package publishing, part I: introduction to package management in CI/CD.

Continue reading “Continuous package publishing, part II: automated npm publishing with CircleCI and packagecloud”