Create a Text File in Go

Here's a simple way to create a text file and write a line to it in Golang:

Example

	tempDir := t.TempDir()
	p := filepath.Join(tempDir, "Dockerfile")
	f, err := os.Create(p)
	if err != nil {
		t.Fatal(err)
	}
	defer f.Close()
	f.WriteString("FROM alpine:latest")
    

In this case, we created a Dockerfile in a temporary directory.

Notice how in Go we immediately handle error conditions and defer the closing of the file, which is handled automatically by Go.


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