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go-hello-world's Introduction

Go: Hello, World!

Sample Go code: hello.go

package main

import "fmt"

func main() {
    fmt.Println("Hello, World!")
}

How to build a Go code

Build the source code in a container.

$ mkdir hello; cd hello
$ vi hello.go
$ podman pull docker.io/library/golang
$ podman run --rm -v .:/hello:z -w /hello golang go mod init hello
$ podman run --rm -v .:/hello:z -w /hello golang go build

Test run the Go binary.

$ ls -l
total 1736
-rw-r--r--. 1 user user      22 Aug 21 02:30 go.mod
-rwxr-xr-x. 1 user user 1766198 Aug 21 02:30 hello
-rw-rw-r--. 1 user user      76 Aug 18 03:26 hello.go
$ ./hello
Hello, World!

Go version of container images

golang

$ podman pull docker.io/library/golang
$ podman run --rm golang go version
go version go1.17 linux/amd64

ubi8/go-toolset

$ podman pull registry.access.redhat.com/ubi8/go-toolset
$ podman run --rm go-toolset go version
go version go1.15.14 linux/amd64

Reference

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