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Director Runtime Config

Note

This feature is available with bosh-release v255.4+.

The Director has a way to specify global configuration for all VMs in all deployments. The runtime config is a YAML file that defines IaaS agnostic configuration that applies to all deployments.


Updating and retrieving runtime config

To update runtime config on the Director use bosh update-runtime-config CLI command.

Note

See example runtime config below.

bosh update-runtime-config runtime.yml
bosh runtime-config
Acting as user 'admin' on 'micro'

releases:
- name: strongswan
  version: 6.0.0

addons:
- name: security
  jobs:
  - name: strongswan
    release: strongswan
...

Once runtime config is updated all deployments will be considered outdated. bosh deployments does not currently show that but we have plans to show that information. The Director will apply runtime config changes to each deployment during the next bosh deploy for that deployment.


Example

releases:
- name: strongswan
  version: 6.0.0

addons:
- name: security
  jobs:
  - name: strongswan
    release: strongswan
    properties:
      strongswan:
        ca_cert: ...

Note

To remove all addons, specify empty arrays as follows:

releases: []
addons: []

Releases Block

releases [Array, required]: Specifies the releases used by the addons.

  • name [String, required]: Name of a release name used by an addon.
  • version [String, required]: The version of the release to use. Version cannot be latest; it must be specified explicitly.
  • url [String, optional]: URL of a release to download. Works with CLI v2. Example: https://bosh.io/d/github.com/cloudfoundry/syslog-release?v=11.
  • sha1 [String, optional]: SHA1 of asset referenced via URL. Works with CLI v2. Example: 332ac15609b220a3fdf5efad0e0aa069d8235788.

See Release URLs for more details.

Example:

releases:
- name: strongswan
  version: 6.0.0

Example with a URL:

releases:
- name: concourse
  version: 3.3.2
  url: https://bosh.io/d/github.com/concourse/concourse?v=3.3.2
  sha1: 2c876303dc6866afb845e728eab58abae8ff3be2

Addons Block

Operators typically want to ensure that certain software runs on all VMs managed by the Director. Examples of such software are:

  • security agents like Tripwire, IPsec, etc.
  • anti-viruses like McAfee
  • custom health monitoring agents like Datadog
  • logging agents like Loggregator's Metron

An addon is a release job that is colocated on all VMs managed by the Director.

addons [Array, optional]: Specifies the addons to be applied to all deployments.

  • name [String, required]: A unique name used to identify and reference the addon.
  • jobs [Array of hashes, requires]: Specifies the name and release of release jobs to be colocated.
    • name [String, required]: The job name.
    • release [String, required]: The release where the job exists.
    • properties [Hash, optional]: Specifies job properties. Properties allow the Director to configure jobs to a specific environment.
  • include [Hash, optional]: Specifies inclusion placement rules Available in bosh-release v260+.
  • exclude [Hash, optional]: Specifies exclusion placement rules. Available in bosh-release v260+.

Placement Rules for include and exclude Directives

Available rules:

  • stemcell [Array of hashes, optional]: at least one of the items must match
    • os [String, required]: Matches stemcell's operating system. Example: ubuntu-trusty
  • deployments [Array of strings, optional]: Matches based on deployment names.
  • jobs [Array of hashes, optional]: at least one of the configured jobs must match
    • name [String, required]: Matching job name.
    • release [String, required]: Matching release name.
  • instance_groups [Array of strings, optional]: Matches based on instance group names. Available in bosh-release v268+.
  • lifecycle [String, optional]: Matches based on lifecycle type, either service or errand. Note that a service VM is any non-errand VM and that colocated errands may actually run on service VMs. Available in bosh-release v262+.
  • networks [Array of strings, optional]: Matches based on network names. Available in bosh-release v262+.
  • teams [Array of strings, optional]: Matches based on team names. Available in bosh-release v253+.

Example:

addons:
- name: security
  jobs:
  - name: strongswan
    release: strongswan
    properties:
      strongswan:
        ca_cert: ...
  - name: syslog_drain
    release: syslog
    properties:
      syslog_drain_ips: [10.10.0.20]
  include:
    deployments: [dep1, dep2]

Example with include rules:

include:
  deployments: [dep1, dep2]
  jobs:
  - name: redis
    release: redis-release
  stemcell:
  - os: ubuntu-trusty

See common addons list for several examples.

Precedent for Placement Rules

Placement rules are chosen based on the AND operator; specifically, the director will chose applicability if the specified rule is in the include directive AND the rule is NOT in the exclude directive.

The rules inside a directive are also based on the AND operator; if the VM meets the criteria of all of the rules, it will be considered included or excluded. All items within the arrays in an inclusion/exclusion rule use the OR operator.

For example, given the following config:

addons:
- name: my-addon
  jobs:
  - name: my-addon-job
    release: my-addon-release
    properties:
      ...
  include:
    lifecycle: errand
    stemcell:
    - os: ubuntu-xenial
    - os: windows2019
  exclude:
    jobs:
    - job1
    deployments:
    - dep1
    - dep2

The director will collocate my-addon to all errand VMs that use either the ubuntu-xenial or windows2019 stemcells, except for any VMs with job1 belonging to deployment dep1 or dep2.

In pseudocode:

  AND (
    INCLUDE (
      AND (
        OR (
          stemcell:ubuntu-xenial
          stemcell:windows2019
        )
        lifecycle:errand
      )
    )
    EXCLUDE (
      AND (
        jobs:job1
        OR (
          deployments:dep1
          deployments:dep2
        )
      )
    )
  )

Tags Block

tags [Hash, optional]: Specifies key value pairs to be sent to the CPI for VM tagging. Combined with deployment level tags during the deploy. Available in bosh-release v260+.

Example:

tags:
  business_unit: marketing
  email_contact: ops@marketing.co.com