Colin Chartier

Colin Chartier

Colin is co-founder & CEO at webapp.io. He previously worked as CTO at ParseHub and as a software design lecturer at the University of Toronto. You can reach him at [email protected]
Teleporting VMs across continents without downtime
BY Colin Chartier
5 min read
Teleporting VMs across continents without downtime
I'm Colin, the co-founder of webapp.io. We make half a million VMs per year for DevOps and Production workloads. ...
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Vital production metrics and how to collect them
BY Colin Chartier
3 min read
Vital production metrics and how to collect them
Metric aggregation tools measure and store numerical data to understand what is happening in production. ...
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How to run end-to-end tests 10x faster with firecracker
BY Colin Chartier
4 min read
How to run end-to-end tests 10x faster with firecracker
Firecracker is the technology which powers Serverless, but it can be also be repurposed to run end-to-end tests quickly and cheaply. ...
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How to open a tunnel into any pod or container with tcpserver and netcat
BY Colin Chartier
2 min read
How to open a tunnel into any pod or container with tcpserver and netcat
It's a common scenario: You want a port on your local computer to magically forward traffic to your pod/container (or vice-versa.) ...
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An ORDER BY statement improved our query times by 100x
BY Colin Chartier
4 min read
An ORDER BY statement improved our query times by 100x
PostgreSQL queries can be sped up by creating the right indices, and making sure that the indices are being used. ...
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Making a faster "docker build" with FUSE
BY Colin Chartier
4 min read
Making a faster "docker build" with FUSE
Making a filesystem seems daunting, but actually isn't that hard in 2022. In this article we'll talk about why we had to build our own filesystem, and chat about how you can build your own. ...
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Building a "Docker Hub" for CI base images
BY Colin Chartier
3 min read
Building a "Docker Hub" for CI base images
Docker Hub is the central repository of images maintained by Docker for its production images. We built the same thing for VMs used by CI pipelines ...
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On-demand wildcard TLS certificates
BY Colin Chartier
5 min read
On-demand wildcard TLS certificates
Every website now uses https://, but it's difficult to configure TLS certificates yourself. This post talks about how to set up on-demand wildcard certificates for free with DNS and LetsEncrypt ...
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What is a webapp?
BY Colin Chartier
1 min read
What is a webapp?
What is a webapp? They're websites that replace what would otherwise be a desktop app or mobile app. They're interactive, and users can often log in to save their environment for future visits. ...
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