pack v0.21.0-rc1

This is a beta pre-release of the Cloud Native Buildpack local CLI. This platform implementation should be relatively stable and reliable, but breaking changes in the underlying specification may be implemented without notice. Note that pack is intended for local image builds, and thus requires a Docker daemon. The lifecycle should be used directly when building on cloud platforms.

Prerequisites

• The Docker daemon must be installed on your workstation or accessible over the network.

Install

Linux

Command

(curl -sSL "https://github.com/buildpacks/pack/releases/download/v0.21.0-rc1/pack-v0.21.0-rc1-linux.tgz" | sudo tar -C /usr/local/bin/ --no-same-owner -xzv pack)

Manually

1. Download the .tgz or .zip file for your platform
2. Extract the pack binary
3. (Optional) Add the directory containing pack to PATH, or copy pack to a directory like /usr/local/bin

Run

Run the command pack.

You should see the following output:

CLI for building apps using Cloud Native Buildpacks

Usage:
  pack [command]

Available Commands:
  build                 Generate app image from source code
  builder               Interact with builders
  buildpack             Interact with buildpacks
  config                Interact with your local pack config file
  inspect               Show information about a built app image
  stack                 Interact with stacks
  rebase                Rebase app image with latest run image
  completion            Outputs completion script location
  report                Display useful information for reporting an issue
  version               Show current 'pack' version
  help                  Help about any command

Flags:
  -h, --help         Help for 'pack'
      --no-color     Disable color output
  -q, --quiet        Show less output
      --timestamps   Enable timestamps in output
  -v, --verbose      Show more output
      --version      Show current 'pack' version

Use "pack [command] --help" for more information about a command.

Info

Builders created with this release of the pack CLI contain lifecycle v0.11.3 by default.

Changelog

Features

• Improve CLI documentation for pack build --tag (#1266 by @importhuman)
• Fix using variable reference when running multiple combo tests (#1257 by @jromero)
• Add support for Project Descriptor 0.2 (#1241 by @YousefHaggyHeroku)
• Default to standard library when validating zip file (#1238 by @aemengo)
• Process project.toml for app source metadata (#1231 by @Haimantika)
• Show detect screen during detect phase (#1230 by @aemengo)
• Allow build --env option to be comma separated list. (#1212 by @kramarz)
• Add previous-image flag (#1198 by @importhuman)

Bugs

• Fix pack builder suggest panic (#1255 by @yedamao)
• Pack loses the names of buildpacks (#1253 by @haliliceylan)

Contributors

We'd like to acknowledge that this release wouldn't be as good without the help of the following amazing contributors:

@Haimantika, @YousefHaggyHeroku, @aemengo, @dependabot[bot], @haliliceylan, @importhuman, @jromero, @kramarz, @yedamao