Programming language: Perl
License: MIT License
Tags: Cloud Orchestration    
Latest version: v2.7.23

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Genesis - A BOSH Deployment Paradigm

Genesis v2

Genesis v2 is the first version of Genesis to fully support BOSH v2. It is primarily geared to deployments that make use of Cloud Config, and Runtime Config. The BOSH v2 CLI is also a requirement of Genesis v2.

Genesis v2 builds upon the previous generation of Genesis, eliminating the vast majority of YAML files all over the place, leading to confusion and questions like "Where do I put property X - properties.yml, networking.yml, or credentials.yml?"

It also supports the next generation of Genesis deployment templates - Kits. In the old genesis, deployment templates were pulled in once, forked from their upstream, and likely never reconciled. With kits, you can keep upgrading the kit, pulling in newer versions of your deployment to make life much easier down the road.

Credential Rotation Built-in

Genesis v2 makes use of Vault as a back-end for storing credentials, most easily deployed

  • managed via the Vault kit, and the safe CLI. Each kit will auto-generate credentials where appropriate, ensuring that each environment has unique and secure credentials. Secrets can be manually or automatically rotated at the drop of hat with the genesis rotate-secrets command. Kits will define certain credentials as fixed, indicating that they should not be rotated under normal circumstances, as that would have ill effects on the deployment (the CF db encryption key for example).

The New Tiered Architecture

In Genesis v2, the data that was previously stored in global and site by and large go away. Most of global is provided via Kits. Most of site is now moved into Cloud Config. As a result, we can stick most of the customization into a single file per environment, and the directory structure has been flattened. To share information between environments, and reduce config repitition, you can create files based on shared prefixes of the environment. For example, us-west-1 and us-west-2 share both us, and us-west prefixes, and could share configuration in files named as such).

Here's what the new layout looks like:

├── ci.yml
├── us-boshlite-alpha.yml
├── us-east-dev.yml
├── us-east-prod.yml
├── us.yml # shared with us-*.yml
└── README.md

Using Kits

When using a kit with Genesis v2, Genesis will automatically download the latest (or specified) version of a kit, when you initialize your deployment repo. Any new versions of the kit can be retrieved with genesis download. Each deployment environment must have at some point in its merge-path, a kit section, indicating what kit + version should be deployed. It will look something like this:

  name: jumpbox
  version: 2.0

To get the full benefit of CI, operators should place this in a file that is shared across all environments, so that upgrades can be vetted in the deployment pipeline in non-production environments, before going to production.

Flexible Deployment Pipelines

The pipeline strategy of Genesis v2 is much more flexible than the previous approach. Operators are able to define what environments should trigger, which should not, as well as which environments are gateways to deploying in later environments. Stemcell management is built-in, as are locking mechanisms to ensure that your BOSH isn't upgraded while it's in the middle of deploying something.

For a full run-down on Genesis v2 + deployment pipelines, see our [pipeline documentation](docs/PIPELINES.md)


On Ubuntu/Debian you can install genesis and all its dependencies:

wget -q -O - https://raw.githubusercontent.com/starkandwayne/homebrew-cf/master/public.key | apt-key add -
echo "deb http://apt.starkandwayne.com stable main" | tee /etc/apt/sources.list.d/starkandwayne.list
apt-get update
apt-get install genesis -y

On OS X/Mac:

brew tap starkandwayne/cf
brew tap cloudfoundry/tap
brew install genesis spruce safe bosh-cli vault git

On Centos 7 / Amazon Linux

# Install Dependencies
sudo yum install -y perl perl-Data-Dumper perl-Time-Local perl-Time-Piece \
  perl-local-lib perl-Carp perl-PathTools perl-Digest perl-File-Temp perl-Socket

# Grab latest url from releases page
wget https://github.com/starkandwayne/genesis/releases/download/${GENESIS_VERSION}/genesis
chmod 0755 genesis

genesis requires Perl. But Perl is everywhere.

You will need to set up Git:

git config --global user.name "Your Name"
git config --global user.email [email protected]

Using Genesis

Here are a few thoughts on the Genesis CLI.

Global options should be recognized for all commands:

  • -D / --debug - Enable debugging mode, wherein Genesis prints messages to standard error, detailing what tasks it is doing, what commands it is running, return values, etc.
  • -T / --trace - Enable debugging mode in all called utilities, like spruce and bosh, where available.
  • -C PATH - Perform all operations from PATH as the current working directory.
  • -y / --yes - Answer "yes" to all questions, automatically, on behalf of the user. This means, for example, running bosh -n, instead of just bosh.

Initialize a Genesis repo:

genesis init --kit shield
genesis init --kit shield/1.2.3

Create a new deployment named us-west-1-sandbox:

genesis new us-west-1-sandbox

Generate a manifest for an environment:

# Using the live the cloud-config from the BOSH director
genesis manifest my-sandbox
# or, using the local file cached-cloud-config.yml:
genesis manifest -c cached-cloud-config.yml

Deploy a deployment, manually:

genesis deploy us-west-1-sandbox

Rotate credentials for a deployment:

genesis secrets us-west-1-sandbox

Summarize the current state of deployments and what kits they are using:

genesis summary

Download version 1.3.4 of the SHIELD kit:

genesis download shield 1.3.4

Deploy the Genesis CI/CD pipeline configuration to Concourse:

genesis repipe

Describe a given pipeline, in words:

genesis describe

Draw a pretty picture of a pipeline, using dot, suitable for embedding in documentation and putting on your blog:

genesis graph pipelines/aws

Embed the calling Genesis script in the Genesis repo:

genesis embed

Transitioning to Genesis v2

Due to the sweeping changes involved in Genesis v2, it is recommended to start with a fresh deployment repo, and migrate existing deployments slowly but surely over to Genesis v2 using the appropriate kits, or if necessary, a dev kit (see [Authoring Kits](docs/AUTHORING-KITS.md) for more info). The genesis command will auto-detect if you are running inside a Genesis v1 repo, and switch to a v1 mode, for compatibility.

Design Notes + Genesis Developer Resources

Genesis v2 design documentation that was previously found here has moved.

  • [Design Notes](docs/DESIGN.md)
  • [Pipelines](docs/PIPELINES.md)
  • [Authoring Kits](docs/AUTHORING-KITS.md)
  • [Environment Parameters](docs/PARAMS.md)

*Note that all licence references and agreements mentioned in the Genesis README section above are relevant to that project's source code only.