Piotrekkr's blog

Using GitHub secrets may break job outputs

Aug 18, 20242 min read

If you don't want to spend hours debugging GitHub CI jobs, avoid using job outputs that may contain secrets inside. Job outputs will not be passed to...

Using GitHub secrets may break job outputs

How to get multi-architecture manifest SHA256 for a Docker image?

Jul 22, 20243 min read

Sometimes you have to deal with multiple CPU architectures within your team. For example you have devs using macOS (arm64) and Linux (amd64). This may...

Cloud-init works differently with COS images in GCP

Apr 6, 20242 min read

Introduction When working with VMs you may come across cloud-init tool that could be used to provision your instances. It is a well documented tool...

Cloud-init works differently with COS images in GCP

Using make with docker compose to automate dev and CI tasks

Dec 12, 202314 min read

Introduction In today's fast-paced development environment, where multiple developers are collaborating on projects using different operating systems...

Using make with docker compose to automate dev and CI tasks

Dockerfile COPY command may not work as you expect

Oct 6, 20239 min read

As the name suggests, docker COPY copies stuff from the host to the docker image, right? Right. Well, mostly right... TLDR You need to watch out for...

Dockerfile COPY command may not work as you expect

Fixing "Connection to Cloud SQL instance at IP:3307 failed: timed out after 10s"

Sep 17, 20239 min read

This was a rather interesting problem to fix. I'm running a PHP app as Google Cloud Run Service. This app is connected to the Cloud SQL instance using...

Fixing "Connection to Cloud SQL instance at IP:3307 failed: timed out after 10s"