Building a Manifest

(See What is a Deployment? for an introduction to deployments.)

A deployment is a collection of VMs, persistent disks and other resources. To create a deployment in the Director, it has to be described with a deployment manifest. Most deployment manifests look something like this:

--- name: zookeeper releases: - name: zookeeper version: 0.0.5 url: https://bosh.io/d/github.com/cppforlife/zookeeper-release?v=0.0.5 sha1: 65a07b7526f108b0863d76aada7fc29e2c9e2095 stemcells: - alias: default os: ubuntu-xenial version: latest update: canaries: 2 max_in_flight: 1 canary_watch_time: 5000-60000 update_watch_time: 5000-60000 instance_groups: - name: zookeeper azs: [z1, z2, z3] instances: 5 jobs: - name: zookeeper release: zookeeper properties: {} vm_type: default stemcell: default persistent_disk: 10240 networks: - name: default - name: smoke-tests azs: [z1] lifecycle: errand instances: 1 jobs: - name: smoke-tests release: zookeeper properties: {} vm_type: default stemcell: default networks: - name: default 

(Taken from https://github.com/cppforlife/zookeeper-release/blob/master/manifests/zookeeper.yml)

Here is how deployment manifest describes a reasonably complex Zookeeper cluster:

  1. Zookepeer source code, configuration file, startup scripts
    • include zookeeper release version 0.0.5 to the releases section
  2. Operating system image onto which install software
    • include latest version of ubuntu-xenial stemcell
  3. Create 5 Zookeeper VMs spread
  4. Spread VMs over multiple availability zones
    • add azs: [z1, z2, z3]
  5. Install Zookeeper software onto VMs
    • add zookeeper job to this instance group
  6. Size VMs in the same way
    • add vm_type: default which references VM type from cloud config
  7. Attach a 10GB persistent disk to each Zookeeper VM
    • add persistent_disk: 10240 to zookeeper instance group
  8. Place VMs onto some network
    • add networks: [{name: default}] to zookeeper instance group
  9. Provide a way to smoke test Zookeeper cluster
    • add smoke-tests instance group with smoke-tests job from Zookeeper release

Refer to manifest v2 schema for detailed breakdown.

Once manifest is complete referenced stemcells and releases must be uploaded.