https://github.com/garethr/dockerfilepp

Library for writing your own Dockerfile pre-processors
https://github.com/garethr/dockerfilepp

Last synced: about 1 month ago
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Library for writing your own Dockerfile pre-processors

• Host: GitHub
• URL: https://github.com/garethr/dockerfilepp
• Owner: garethr
• License: apache-2.0
• Created: 2016-07-17T16:21:51.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2016-09-06T08:28:57.000Z (almost 9 years ago)
• Last Synced: 2025-05-08T01:13:28.280Z (about 1 month ago)
• Language: Go
• Homepage:
• Size: 6.84 KB
• Stars: 8
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
A simple library for building Dockerfile pre-processors.

[![Build

Status](https://travis-ci.org/garethr/dockerfilepp.svg)](https://travis-ci.org/garethr/dockerfilepp)

[![Go Report

Card](https://goreportcard.com/badge/github.com/garethr/dockerfilepp)](https://goreportcard.com/report/github.com/garethr/dockerfilepp)

[![GoDoc](https://godoc.org/github.com/garethr/dockerfilepp?status.svg)](https://godoc.org/github.com/garethr/dockerfilepp)

Dockerfile pre-processors aim to make extending Dockerfile with new

domain-specific instructions easy. Simply build your own pre-processor

and pipe Dockerfiles in on stdin.

Here is a simple hello world usage of the API:

```go

package main

import (

    "github.com/garethr/dockerfilepp"

)

func main() {

    replacements := map[string]string{

        "CUSTOM_INSTALL": "RUN apt-get install thing",

        "CUSTOM_ECHO": "RUN echo hello",

    }

    dockerfilepp.Process(replacements, "include comprehensive help text here")

}

```

As a example implementation see [dockerfilepp-puppet](https://github.com/garethr/dockerfilepp-puppet)

which uses local files compiled into the binary rather than hard coded

variables.