smahr/cf-varnish-buildpack

Deploy Varnish to Cloud Foundry

Deploy varnish to Cloud Foundry

Need Varnish on Cloud Foundry? It is now easy to have that.

You need to create your Varnish configuration file(s) in the directory etc/ and call the "master" file default.vcl. Then do

cf push my-varnish -m 128M -b https://github.com/chregu/cf-varnish-buildpack.git

and it should soon be available on Cloud Foundry.

You need Varnish and PHP in one buildpack?

Head over to my fork of the PHP buildpack which adds varnish to that: https://github.com/chregu/cf-php-varnish-buildpack

Configuration

Changing the memory size used by varnish

By default, this varnish uses -s malloc,$MEMORY_LIMIT, where $MEMORY_LIMIT is the memory limit applied to this app. you can overwrite that in the manifest.yml with

  env:
    VARNISH_MEMORY_LIMIT: 256m

The default values used for starting varnishd can be seen in boot.sh. If you want to change those, you can copy boot.sh to your app root dir and set new values. (Maybe we'll make those adjustable via env variable later as well)

Administrator Upload

Everyone can automatically use this buildpack if your Cloud Foundry Administrator uploads it.

To create/upload from source repository

zip -r ../varnish-buildpack.zip *
cf create-buildpack varnish_buildpack ../varnish-buildpack.zip 10

Subsequently, update the buildpack with:

zip -r ../varnish-buildpack.zip *
cf update-buildpack varnish_buildpack -p ../varnish-buildpack.zip

Test that it correctly detects the buildpack:

cf push varnishtest -p test/fixtures/varnish
...
Staging failed: An application could not be detected by any available buildpack

Building Varnish

We use docker for building varnish.

./bin/build_varnish

Varnish will be stuffed into a tarball in the vendor/ folder.

Acknowledgements

This buildpack is based heavily upon Cloud Foundry's staticfile-buildpack (which is heavily based on Jordon Bedwell's Heroku buildpack and the modifications by David Laing for Cloud Foundry nginx-buildpack). Thanks for the buildpack, Cloud Foundry!!