Read, Write, Execute.

Notes from the team on software engineering research, CI/CD, and how we're building RWX.

More CPU and Memory for Tasks

September 24, 2024

More CPU and Memory for Tasks

RWX now supports running tasks with up to 64 CPUs and 256 GB of memory.

RWX 1.0 Now Available

June 25, 2024

RWX 1.0 Now Available

Discover RWX 1.0 with improved support for Docker containers. Try it now!

Adaptive CI Pipelines with Dynamic Tasks

May 31, 2024

Adaptive CI Pipelines with Dynamic Tasks

Dynamic tasks enable building CI pipelines which are adaptive based on things like the commit contents or data from external data sources. They unlock a lot of possibilities for building highly performant CI pipelines.

What to Do When Merging Faster than Your Continuous Deployment Process

May 30, 2024

What to Do When Merging Faster than Your Continuous Deployment Process

When multiple commits are merged in rapid succession, rather than creating a backlog of deployments, a reasonable solution is to skip deploying the earlier commits and only deploy the most recent one.

Implementing a Remote Debugger with Node and tmux

May 29, 2024

Implementing a Remote Debugger with Node and tmux

We built a remote debugger into RWX using a familiar construct: setting a breakpoint. It's as easy as calling rwx-breakpoint from a task and then using the local CLI to run rwx debug {debugId}.

Serializing Map Data Structures from Shell Scripts

May 28, 2024

Serializing Map Data Structures from Shell Scripts

Shell scripts are commonly used for automating DevOps and CI/CD tasks. Unfortunately they do not provide an easy way to build a map data structure and serialize it directly from a shell script, which usually leads to engineers inventing a custom format instead.

Ensuring Version Consistency Across All Environments

May 23, 2024

Ensuring Version Consistency Across All Environments

As a best practice, engineering teams should ensure that the same version of tools and runtimes are used across all environments. The best way to enforce version consistency is checking for it explicitly in a CI pipeline.

Designing a Software Supply Chain for Security and Reliability

May 22, 2024

Designing a Software Supply Chain for Security and Reliability

For both security and reliability, package managers should be designed to always lock packages to a specific version. They should also provide an easy way to upgrade packages to the latest version.

Git Push to Run CI/CD is a Terrible Developer Experience

May 21, 2024

Git Push to Run CI/CD is a Terrible Developer Experience

Traditional CI/CD platforms are designed to run when developers push commits or update their pull requests. And it's a terrible developer experience when implementing new workflows.

The Paradigm Shift of CI/CD as a DAG of Tasks

May 20, 2024

The Paradigm Shift of CI/CD as a DAG of Tasks

RWX defines workflows as a directed acyclic graph (DAG) of tasks, rather than as scripts on VMs. This difference is the key to RWX’s unmatched performance and developer experience.