Recent Articles - Docker

Testing Docker Images with Container Structure Test

Jul 18, 2020 · 4 min read

Just because a Docker image builds successfully doesn't mean it will perform as expected. Google's container Structure Test tool helps you check images to make sure they're working as intended.

ci-cd docker testing

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Reducing Docker Layers

Jun 29, 2020 · 5 min read

Reducing the size of your Docker images is important for a number of reasons, and while there are newer tools such as multi-stage builds, reducing the number of layers in your image may help.

docker

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Using Multi-Stage Docker Builds with Go

Jun 4, 2020 · 4 min read

Multi-stage Docker builds can greatly reduce the size of final built images, and the savings can be extreme with Go.

docker go

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Tunneling a Database Connection with Docker Compose

Aug 7, 2019 · 3 min read

I recently had the need to tunnel a database connection from a local Docker container to a remote MySQL server. The AWS RDS instance is inside the same VPC as a bastion host that runs the SSH server. Rather than open the tunnel on the host machine and have the container connect through host.docker.internal I thought I'd configure it all in one place with Docker Compose.

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