https://github.com/bamarni/dockplate

Templating for Dockerfiles.
https://github.com/bamarni/dockplate

docker dockerfile template templating

Last synced: about 1 month ago
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Templating for Dockerfiles.

• Host: GitHub
• URL: https://github.com/bamarni/dockplate
• Owner: bamarni
• Created: 2016-04-06T07:11:21.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2016-04-06T07:18:36.000Z (over 8 years ago)
• Last Synced: 2024-08-17T08:04:55.740Z (4 months ago)
• Topics: docker, dockerfile, template, templating
• Language: Go
• Homepage:
• Size: 1000 Bytes
• Stars: 5
• Watchers: 4
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# dockplate

Templating for Dockerfiles.

## Why?

It is common for Dockerfiles to share a similar base with slight modifications.

It happens when applying the same changes from different base images, or tuning images for production / development.

For those cases it might be useful to have a simple template which can be used

to generate different "flavours" of the same Dockerfile.

## Installation

### Prebuilt binaries

Prebuilt binaries are available in the [releases](https://github.com/bamarni/dockplate/releases).

### From source (requires Go)

    go get github.com/bamarni/dockplate

## Usage

```

# ./Dockerfile.template

FROM debian:{{.Env.BASE_TAG}}

# Common steps

# ...

{{if eq .Env.ENVIRONMENT "prod"}}

# Production tweaks

# ...

{{else if eq .Env.ENVIRONMENT "dev"}}

# Development tweaks

# ...

{{end}}

RUN ...

CMD ...

```

*The template parser is based on golang's `text/template`,

cf. https://golang.org/pkg/text/template/ for full reference.*

You can then generate Dockerfiles like this :

    BASE_TAG=jessie ENVIRONMENT=prod dockplate < Dockerfile.template > jessie-prod/Dockerfile