Deep Dive into Docker Container Images

By Tomoya Amachi at Apr 08, 2020

I created an open-source tool, Dockertags. This tool is very easy to use. You only need to run dockertags imageName. Dockertags shows what tags exist in a remote image registry. Dockertags works in multiple registries, it currently supports Docker Hub, GCR, and ECR. Here are some sample commands and outputs.

Create secure projects in Golang

By Tomoya Amachi at Mar 23, 2020

Go language has become a popular language in the world today. Many famous open-source products use Golang. Today I will introduce simple tips on how to create a secure project in Golang.Beforehand. I would like to recommend reading OWASP(Open Web Application Security Project)'s Secure Coding Plactice even if your application is not a web application. It is one of the best books on secure coding in Golang. Today, I will talk about tips not included in OWASP Go guidelines.

How I profiled Go code with pprof

By Tomoya Amachi at Mar 18, 2020

I have been using Go language(Golang). I like Golang because it has great official tools and it’s easy to start developing and improving products. For example, Golang has an official code formatter go fmt, so I do not care about coding rules while writing Golang.Today I will introduce Golang official code profiling tool pprof, it also visualizes profiling data. It is very easy to use.

Trivy adopted by Harbor and Docker Enterprise

By Tomoya Amachi at Mar 16, 2020

Today, Trivy adopted by famous container registry services, Harbor registry and Mirantis Docker Enterprise. Trivy is an easy-to-use open-source vulnerability scanner for container images. It detects vulnerabilities not only in OS packages but also in application libraries, e.g. node(JavaScript), gem(Ruby).

Hosting HELM chart private repositories in GitHub and GitLab

By Tomoya Amachi at Feb 15, 2020

Helm is a popular tool for Kubernetes package manager. This article introduces what is Helm and how to host private helm repositories.

Create a Kubernetes Cluster with Kubeadm and Calico on GCP instances

By Tomoya Amachi at Feb 11, 2020

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How to host static site by Google Cloud Storage

By Tomoya Amachi at Feb 23, 2018

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The way to build your corporate sites for free

By Tomoya Amachi at Aug 28, 2017

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