Re: Discontinuing Distribution of the Offline Buildpacks

Stephen Levine

Hi Peter,

The only change is that buildpacks will now reach out to the internet to
download language dependencies. For example, staging a Python app will
require the Python buildpack to download Python from the
CloudFront-distributed S3 bucket at

Our testing indicates that the performance impact of this change is
minimal, as long a reasonably fast internet connection is available in the
application staging container.


On Thu, Jun 1, 2017 at 12:25 AM, Peter Dotchev <dotchev(a)> wrote:


Should we expect some performance change with the switch from offline to
online buildpacks?


On Wed, May 31, 2017 at 6:42 PM Stephen Levine <slevine(a)> wrote:

Hi All,

As a reminder, new buildpack BOSH releases created after June 1, 2017
will have this change. Preparing for this change might include:
1. Making sure that your pipelines and/or CF deployments allow internet
access during staging, if you plan to switch to the online buildpacks
2. Making sure that you can build and install the offline buildpacks, if
you plan to continue using the offline buildpacks


On Wed, Apr 26, 2017 at 2:38 PM, Stephen Levine <slevine(a)>

Hi All,

After June 1, 2017, new releases created in the following buildpack BOSH
release repositories will not supply “offline” or “cached” buildpacks that
are packaged with their dependencies (ex. language interpreters,
compilers). These BOSH releases will instead supply “online” or “uncached”
buildpacks that require an internet connection when staging Cloud Foundry

The following releases are already “online” or “uncached,” and will not

The following releases will no longer be maintained, and will eventually
move to the attic.

These changes will also apply to the corresponding release in
for each of these repositories.

In addition, we will cease to publish “offline” or “cached” versions of
the buildpacks attached to Github release notes. Online versions will be
made available in their place.

Instructions for building the offline buildpacks are available in the file in each buildpack repository. Once built, offline buildpacks
may contain proprietary dependencies that may require distribution
licensing and/or export control measures to redistribute.


On Tue, Apr 11, 2017 at 11:35 AM, Stephen Levine <slevine(a)>

Hi All,

Ben and I will provide more details about this transition in the near
The current plan is to provide online buildpack BOSH releases to
replace the offline buildpack BOSH releases, and to ship only online
buildpacks in cf-release.


On Tue, Apr 11, 2017 at 11:20 AM, Chip Childers <
cchilders(a)> wrote:

The Cloud Foundry Foundation strives to keep Cloud Foundry both open
source and tailored to enterprise needs. Occasionally this is not
straightforward, and requires us to change the way we make Cloud Foundry
available to downstream distributions and open source users.

Currently, the buildpack project teams distribute the official Cloud
Foundry buildpacks on Github and as pre-packaged bundles that
include all of their dependencies, such as language interpreters and
compilers. These offline buildpacks do not require an internet connection
when they are used to push Cloud Foundry apps. The project teams package
these offline buildpacks and make them available to encourage downstream
distributions to include the unmodified, official buildpacks wherever
possible. This promotes a consistent experience for developers across
different Cloud Foundry distributions.

Recently, the CFF has clarified its guidance to project teams with
regard to the distribution of proprietary software [1]. Since the
buildpacks include integrations with proprietary agent software, we need to
change our approach to buildpack distribution. We will soon cease to
package and distribute the offline buildpacks. Instead, we will
publish instructions for downstream consumers to package the offline
buildpacks themselves.

Organizations who wish to distribute the offline buildpacks will be
responsible for any required licensing or export compliance obligations.
The buildpack project teams will publish and maintain a public list of
these integrations to make this process easier.

We still encourage downstream distributions to include the official
buildpacks with minimal changes where possible, and to work with the Cloud
Foundry Buildpacks team to integrate any changes they require upstream into
the official buildpacks.

I've CC'ed Ben Hale (Java Buildpack Lead) and Stephen Levine (Core
Buildpacks Lead), who can help answer any questions about this change.


Chip Childers
CTO, Cloud Foundry Foundation <(267)%20250-0815>

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