Cloud Foundry Riak CS Service

A BOSH release of an S3-compatible object store for Cloud Foundry using Riak CS and a v2 Service Broker.

This project is based on BrianMMcClain/riak-release.

Release Notes

The release notes can be found here.

Getting the code

Final releases are designed for public use, and are tagged with a version number of the form "v".

The develop branch is where we do active development. Although we endeavor to keep the develop branch stable, we do not guarantee that any given commit will deploy cleanly.

The release-candidate branch has passed all of our unit, integration, smoke, & acceptance tests, but has not been used in a final release yet. This branch should be fairly stable.

The master branch points to the most recent stable final release.

At semi-regular intervals a final release is created from the release-candidate branch. This final release is tagged and pushed to the master branch.

Pushing to any branch other than develop will create problems for the CI pipeline, which relies on fast forward merges. To recover from this condition follow the instructions here.

Development

This BOSH release doubles as a $GOPATH. It will automatically be set up for you if you have direnv installed.

# fetch release repo
mkdir -p ~/workspace
cd ~/workspace
git clone https://github.com/cloudfoundry-incubator/cf-riak-cs-release.git
cd cf-riak-cs-release/

# switch to develop branch (not master!)
git checkout develop

# automate $GOPATH and $PATH setup
direnv allow

# initialize and sync submodules
./update

If you do not wish to use direnv, you can simply source the .envrc file in the root of the release repo. You may manually need to update your $GOPATH and $PATH variables as you switch in and out of the directory.

Deployment

Prerequisites

• A deployment of BOSH
• A deployment of Cloud Foundry
• Instructions for installing BOSH and Cloud Foundry can be found at http://docs.cloudfoundry.org/.

Overview

1. Upload Stemcell
2. Upload Release
3. Create Manifest and Deploy

• BOSH-lite
• vSphere
• AWS
• Deployment Manifest Stub Properties

1. Register the Service Broker

Upload Release

You can use a pre-built final release or build a dev release from any of the branches described in Getting the Code.

Final releases are stable releases created periodically for completed features. They also contain pre-compiled packages, which makes deployment much faster. To deploy the latest final release, simply check out the master branch. This will contain the latest final release and accompanying materials to generate a manifest. If you would like to deploy an earlier final release, use git checkout <tag> to obtain both the release and corresponding manifest generation materials. It's important that the manifest generation materials are consistent with the release.

If you'd like to deploy the latest code, build a release yourself from the develop branch.

Upload a pre-built final BOSH release

Run the upload command, referencing the latest config file in the releases directory.

$ cd ~/workspace/cf-riak-cs-release
$ git checkout master
$ ./update
$ bosh upload release releases/cf-riak-cs-<N>.yml

If deploying an older final release than the latest, check out the tag for the desired version; this is necessary for generating a manifest that matches the code you're deploying.

$ cd ~/workspace/cf-riak-cs-release
$ git checkout v<N>
$ ./update
$ bosh upload release releases/cf-riak-cs-<N>.yml

Create and upload a BOSH Release:

1. Checkout one of the branches described in Getting the Code. Build a BOSH development release.

$ cd ~/workspace/cf-riak-cs-release
$ git checkout release-candidate
$ ./update
$ bosh create release

When prompted to name the release, call it cf-riak-cs.

1. Upload the release to your bosh environment:

$ bosh upload release

Create Manifest and Deploy

BOSH-lite

1. Run the script bosh-lite/make_manifest to generate your manifest for bosh-lite. This script uses a stub provided for you, bosh-lite/stub.yml.

$ ./bosh-lite/make_manifest

The manifest will be written to bosh-lite/manifests/cf-riak-cs-manifest.yml, which can be modified to change deployment settings.

1. The make_manifest script will set the deployment to bosh-lite/manifests/cf-riak-cs-manifest.yml for you, so to deploy you only need to run:

$ bosh deploy

vSphere

1. Create a stub file called cf-riak-cs-vsphere-stub.yml by copying and modifying the sample_vsphere_stub.yml in templates/sample_stubs.

2. Generate the manifest:

$ ./generate_deployment_manifest vsphere cf-riak-cs-vsphere-stub.yml > cf-riak-cs-vsphere.yml

To tweak the deployment settings, you can modify the resulting file cf-riak-cs-vsphere.yml.

3. To deploy:

$ bosh deployment cf-riak-cs-vsphere.yml && bosh deploy

AWS

1. Create a stub file called cf-riak-cs-aws-stub.yml by copying and modifying the sample_aws_stub.yml in templates/sample_stubs.

2. Generate the manifest:

$ ./generate_deployment_manifest aws cf-riak-cs-aws-stub.yml > cf-riak-cs-aws.yml

To tweak the deployment settings, you can modify the resulting file cf-riak-cs-aws.yml.

1. To deploy:

$ bosh deployment cf-riak-cs-aws.yml && bosh deploy

Deployment Manifest Properties

Manifest properties are described in the spec file for each job; see jobs.

You can find your director_uuid by running bosh status.

Register the Service Broker

BOSH errand

BOSH errands were introduced in version 2366 of the BOSH CLI, BOSH Director, and stemcells.

$ bosh run errand broker-registrar

Note: the broker-registrar errand will fail if the broker has already been registered, and the broker name does not match the manifest property broker.name. Use the cf rename-service-broker CLI command to change the broker name to match the manifest property then this errand will succeed.

Manually

1. First register the broker using the cf CLI. You must be logged in as an admin.

$ cf create-service-broker p-riakcs BROKER_USERNAME BROKER_PASSWORD URL

BROKER_USERNAME and BROKER_PASSWORD are the credentials Cloud Foundry will use to authenticate when making API calls to the service broker. Use the values for manifest properties properties.broker.username and properties.broker.password.

URL specifies where the Cloud Controller will access the Riak CS broker. Use the value of the manifest property properties.broker.host.

For more information, see Managing Service Brokers.

1. Then make the service plan public.

Acceptance Tests

To run the Riak CS acceptance tests, see the acceptance tests docs.

Security Groups

Since cf-release v175, applications by default cannot to connect to IP addresses on the private network. This may prevents applications from connecting to the Riak CS service. As applications reach the Riak CS service through the router tier in cf-release, create a new security group for the IP configured for the load balancer balancing traffic across your cf-release routers. By default this will be the HAProxy job in cf-release.

1. Add the rule to a file in the following json format; multiple rules are supported.

[
    {
      "destination": "10.244.0.34",
      "protocol": "all"
    }
]

• Create a security group from the rule file.

  $ cf create-security-group p-riakcs rule.json
  

• Enable the rule for all apps

  $ cf bind-running-security-group p-riakcs
  

Changes are only applied to new application containers; in order for an existing app to receive security group changes it must be restarted.

De-registering the broker

The following commands are destructive and are intended to be run in conjuction with deleting your BOSH deployment.

Using BOSH errands

BOSH errands were introduced in version 2366 of the BOSH CLI, BOSH Director, and stemcells.

This errand runs the two commands listed in the manual section below from a BOSH-deployed VM. This errand should be run before deleting your BOSH deployment. If you have already deleted your deployment follow the manual instructions below.

$ bosh run errand broker-deregistrar

Manually

Run the following:

$ cf purge-service-offering p-riakcs
$ cf delete-service-broker p-riakcs

Using the Riak CS service

See Clients for Riak CS for a list of clients that have been validated to work with the service.

The included test application, written in Ruby and using the Fog library, is an example of how to use the service with an application.

Limitations

We have not tested changing the structure of a live cluster, e.g. changing the seed node.

This release does not support running Riak without Riak CS.

Blobs

See Bosh Blobstore for blobstore configuration.

To update a blob:

1. Remove its entry from config/blobs.yml
2. Remove the cached blob from .blobs/ (you can find it by checking the symlink in blobs/<package>/)
3. Copy the new blob file into blobs/<package>/
4. Upload the new blob: bosh upload blobs

riak

Clone the riak repository, check out the desired tag, and make dist. The resulting tar.gz file can be found in the working directory.

riak-cs

Clone the riak_cs repository, check out the desired tag, and make package.src. The resulting tar.gz file can be found in the package/ directory.

stanchion

Clone the stanchion repository, check out the desired tag, and make package.src. The resulting tar.gz file can be found in the package/ directory.

other

TODO - verify where the git, and erlang tarfiles came from.