golang

Github: automated build and publish of containerized GoLang app with Github Actions


Categories: Containers, Development

Github Actions provide the ability to define a build workflow based on Github repository events.  The workflow steps are defined as yaml and can be triggered by various events, including a code push, branch, or tagging in the repository. In this article I will detail the steps of creating a statically-linked GoLang binary that when … Github: automated build and publish of containerized GoLang app with Github Actions

Github: automated Github release of GoLang binary using Github Actions


Categories: Linux

Github Actions provide the ability to define a build workflow directly in Github.  The workflow steps are defined as yaml and can be triggered by various events, including a code push, branch, or tagging in the repository. In this article I will detail the steps of creating a statically-linked GoLang binary that is automatically built … Github: automated Github release of GoLang binary using Github Actions

GoLang: Running a Go binary as a systemd service on Ubuntu 22.04


Categories: Development, Linux

The Go language with its simplicity, concurrency support,  rich package ecosystem, and ability to compile down to a single binary is an attractive solution for writing services on Ubuntu. However, the Go language does not natively provide a reliable way to daemonize itself.  In this article I will describe how to take a couple of simple Go language programs … GoLang: Running a Go binary as a systemd service on Ubuntu 22.04

GoLang: Installing the Go Programming language on Ubuntu 22.04


Categories: Development, Linux

The Go programming language consistently ranks as one of the most popular languages in developer surveys.  In fact, Kubernetes as well as most of the CNF projects are written in Go.  And it compiles down to machine code, which has made it popular in containers like Docker where a single executable binary fits the execution model … GoLang: Installing the Go Programming language on Ubuntu 22.04

GoLang: Installing the Go Programming language on Ubuntu 20.04


Categories: Development

The Go programming language consistently ranks as one of the most popular languages in developer surveys.  In fact, Kubernetes as well as most of the CNF projects are written in Go.  And it compiles down to machine code, which has made it popular in containers like Docker where a single executable binary fits the execution model … GoLang: Installing the Go Programming language on Ubuntu 20.04

Kubernetes: Using Downward API metadata from a GoLang application


Categories: Containers

In a previous post, I described the Kubernetes Downward API and how it allows us to inject pod/container metadata into our runtime container. In this article, I’ll show how you can read the environment variables and mounted files from inside a containerized GoLang based application.

GoLang: Go modules for package management during a multi-stage Docker build


Categories: Containers, Development

My previous article on multi-stage builds to create  Docker images for Go laid the foundation for using an intermediate image as the builder your Go binary.  However, this example was intentionally simplistic and did not address package and dependency management. Since the release of Go 1.11, the standard tooling has natively supported the concept of … GoLang: Go modules for package management during a multi-stage Docker build

GoLang: Using multi-stage builds to create clean Docker images


Categories: Containers, Development

The Go programming language is a natural fit for containers because it can compile down to a single statically-linked binary.  And if you place that single executable on top of scratch, a distroless image, or a small image like alpine, your final image has a minimal footprint which is great for consumption and reuse. But the … GoLang: Using multi-stage builds to create clean Docker images

GoLang: Installing the Go Programming language on Ubuntu


Categories: Development

The Go programming language has gotten considerable momentum, and the fact that it compiles down to a single statically linked binary has made it popular in containers, where a single executable binary fits the execution model perfectly. This article will detail installation on Ubuntu with the standard hello world validation.

Docker: Base image when deploying a GoLang binary in a container


Categories: Containers, Linux, Scripting

Update Oct 2020: multi-stage builds now provide a standard way to leverage a fat build image, while allowing your published image to remain small.  This article is still useful for comparing base image sizes. GoLang applications are a great architectural fit for a Docker container because of their single binary executable. But you need to … Docker: Base image when deploying a GoLang binary in a container

GoLang: Installing the Go Programming language on Ubuntu 16.04


Categories: Development

Update: For the latest version of this article compatible with Ubuntu 22.04 and Go 1.19, see my newer article here. The Go programming language has gotten considerable momentum, and the fact that it compiles down to machine code has made it popular in containers like Docker where a single executable binary fits the execution model perfectly. This article … GoLang: Installing the Go Programming language on Ubuntu 16.04

GoLang: Running a Go binary as a systemd service on Ubuntu 16.04


Categories: Linux, Scripting

Update Oct 2022: This article has now been written for GoLang 1.19 on Ubuntu 22.04.  Go has changed the way it handles SIGURG signals, and Systemd services no longer directly forward to syslog.  Read my newer article here. The Go language with its simplicity, concurrency support,  rich package ecosystem, and ability to compile down to a single … GoLang: Running a Go binary as a systemd service on Ubuntu 16.04

ELK: Connecting to ElasticSearch with a Go client


Categories: Logging, Scripting

ElasticSearch very often serves as a repository for monitoring, logging, and business data.  As such, integrations with external system are a requirement. The Go programming language with its convenient deployment binary and rich set of packages can easily serve as a bridge between these systems and the ElasticSearch server. We will use the olivere/elastic package for this purpose, it is … ELK: Connecting to ElasticSearch with a Go client

GoLang: Running a Go binary as a SysV service on Ubuntu 14.04


Categories: Linux, Scripting

The Go language with its simplicity, concurrency support,  rich package ecosystem, and ability to compile down to a single binary is an attractive solution for writing services on Ubuntu. However, the Go language does not natively provide a reliable way to daemonize itself.  In this article I will describe how to take a couple of simple Go language programs, … GoLang: Running a Go binary as a SysV service on Ubuntu 14.04

GoLang: Glide for Go language package management


Categories: Scripting

Downloading 3rd party packages from github is made very simple in the Go language with the import statement. But similar to other languages, the complexity of versions and inter-dependencies begs the use of a package manager for any projects that are non-trivial (think npm for Javascript, pip for Python, Maven for Java, etc.). Glide is a package manager for the Go … GoLang: Glide for Go language package management

Zabbix: Zabbix REST API using a Go client


Categories: Scripting

The open-source Zabbix monitoring solution has a REST API that provides the ability for deep integrations with your existing monitoring, logging, and alerting systems. This fosters development of community-driven modules like Ryan Day’s zabbix Go language package, which is an easy way to automate Zabbix tasks like creating hosts and manipulating other back end structures. One of the nice things … Zabbix: Zabbix REST API using a Go client

GoLang: Installing the Go Programming language on Ubuntu 14.04


Categories: Linux, Scripting

The Go programming language has gotten considerable momentum, and the fact that it compiles down to machine code has made it popular in containers like Docker where a single executable binary fits the execution model perfectly. This article will detail installation on Ubuntu 14.04 with the standard hello world validation.