dockerify

dockerify

Prepares any tarball containing a project so that a docker image can be built from it

var fs = require('fs')
  , dockerify = require('dockerify')

var intar = fs.createReadStream(__dirname + '/in.tar', 'utf8');
dockerify(intar, { strip: 1, dockerfile: __dirname + '/Dockerfile' })
  .on('error', console.error)
  .pipe(process.stdout)

command line example

# dockerify local file
cat in.tar | dockerify -l silly -c 'from ubuntu' -s 1 > out.tar

# dockerify github tarball
curl -L https://github.com/thlorenz/browserify-markdown-editor/archive/010-finished-dev-version.tar.gz |\
  dockerify -s 1 -c 'from dockerfile/nodejs\nadd . src\n' --gz > out.tar

Installation

npm install dockerify

Commandline Usage

dockerify <options> 

   Creates a tarball stream into which a .tar or .tar.gz file can be piped in order to be dockerized 

OPTIONS:

  -l, --loglevel    level at which to log: silly|verbose|info|warn|error|silent -- default: verbose
  
  -h, --help        Print this help message.

  -g, --gz          set this if you are piping a .tar.gz file

  -s, --strip       default: 0, sets the number of path segments to strip from each directory  

  -c, --content     content of the Dockerfile, defaults to reading --dockerfile or to 'from ubuntu\n'

  -d, --dockerfile  file to read Dockerfile content from in case opts.content wasn't provided 

  -o, --override    default: false if the project contains a Dockerfile at the root (after directories are stripped), 
                    it will be overwritten with the content/file provided if this option is set


EXAMPLES:
  
  dockerify a local tarball and strip outer directory, use default Dockerfile
    
    cat in.tar | dockerify -l silly -s 1 > out.tar

  dockerify a .tar.gz file release on github, setting dockerfile content - Note --gz option

    curl -L https://github.com/thlorenz/browserify-markdown-editor/archive/010-finished-dev-version.tar.gz |\
      dockerify -s 1 -c 'from dockerfile/nodejs\nadd . src\n' --gz > out.tar

API

tar(stream, opts) → {ReadableStream}

Modifies the given tar stream according to given options. The main purpose is adding a Dockerfile so the resulting tar stream can be piped direclty into docker build

Note

The returned tar stream emits the following events on top of the typical ReadableStream events:

• entry emitted whenever an entry was processed and modified
• existing-dockerfile emitted whenever an existing Dockerfile was found and used instead of the supplied one
• overriding-dockerfile emitted whenever an exising Dockerfile was overridden with the supplied one

opts

• {number=} opts.strip default: 0 sets the number of path segments to strip from each directory
• {string=} opts.content content of the Dockerfile, defaults to read(opts.dockerfile) or 'from ubuntu\n'
• {string=} opts.dockerfile file to read Dockerfile content from in case opts.content wasn't provided

• {boolean=} opts.override default: false if the project contains a Dockerfile at the root (after directories are stripped), it will be overwritten with the content/file provided if this option is set

• {Object} opts.stats allows setting mtime, mode, uname, gname, uid and gid of the created Dockefile

Parameters:

Name	Type	Description
stream	ReadableStream	the original tar stream
opts	Object	@see above

Source:

• index.js , lineno 80

Returns:

the transformed tar stream

Type

ReadableStream

targz(stream, opts) → {ReadableStream}

Gunzips the .tar.gz stream and passes it along to tar.

Parameters:

Name	Type	Description
stream	ReadableStream	.tar.gz stream
opts	Object	@see tar

Source:

• index.js , lineno 131

Returns:

the transformed tar stream

Type

ReadableStream

generated with docme

License

MIT