Creating a Director Config File

Extracting a director configuration file, an externalized config that lives outside of Ops Manager, can make it easier to manage multiple foundations as well as help with:

• traceability
• avoiding configuration drift
• configuration promotion

Prerequisites

To extract the configuration for an director, you will first need to do the following:

1. Create the infrastructure for your installation. To make the infrastructure creation easier, consider using terraform to create the resources needed:

   1. terraforming-aws
   2. terraforming-gcp
   3. terraforming-azure
   4. terraforming-vsphere
   5. terraforming-openstack

2. Install Ops Manager using the create-vm task

3. (Optional) Configure Ops Manager manually within the Ops Manager UI (Instructions for doing so can be found using the [Official-Pivotal Platform-Documentation])

Extracting Configuration

om has a command called staged-director-config, which is used to extract the Ops Manager and the BOSH director configuration from the targeted foundation.

Info

staged-director-config will not be able to grab all sensitive fields in your Ops Manager installation (for example: vcenter_username and vcenter_password if using vsphere). To find these missing fields, please refer to the Ops Manager API Documentation

Sample usage:
om --env env.yml staged-director-config > director.yml
will give you the whole configuration of Ops Manager in a single yml file. It will look more or less the same as the example above. You can check it in to your VCS.

The following is an example configuration file for Ops Manager that might return after running this command:

---
az-configuration:
- clusters:
  - cluster: cluster-name
    resource_pool: resource-pool-name
  name: AZ01

properties-configuration:
  iaas_configuration:
    vcenter_host: vcenter.example.com
    vcenter_username: admin
    vcenter_password: password
    ......
  director_configuration:
    blobstore_type: local
    bosh_recreate_on_next_deploy: false
    custom_ssh_banner: null
    ......
  security_configuration:
    generate_vm_passwords: true
    trusted_certificates:
  syslog_configuration:
    enabled: false

network-assignment:
  network:
    name: INFRASTRUCTURE
  other_availability_zones: []
  singleton_availability_zone:
    name: AZ01

networks-configuration:
  icmp_checks_enabled: false
  networks:
  - name: NETWORK-NAME
  ......

resource-configuration:
  compilation:
    instance_type:
      id: automatic
    instances: automatic
  ......

Configuring Director Using Config File

Now you can modify the settings in the configuration file directly instead of operating in the web ui. After you finish editing the file, the configuration file will need to apply back to the Ops Manager instance. The command configure-director will do the job.

Sample usage:
om --env env.yml configure-director --config director.yml

Promoting Ops Manager to Another Foundation

The configuration file is the exact state of a given foundation, it contains some environment specific properties. You need to manually edit those properties to reflect the state of the new foundation. Or, when extracting the configuration file from the foundation, you can use the flag --include-placeholders, it will help to parameterize some variables to ease the process of adapt for another foundation.

VM Extensions

You may specify custom VM extensions to be used in deployments. To learn more about how various IAAS's support and use these extensions, see the Bosh docs.

Using VM Extensions for your director configuration is an advanced feature of Ops Manager. Sometimes it is necessary to define these extensions in order to perform certain tasks on your Ops Manager director, but they are not required to run a foundation(s), and will change default behavior if defined.

Use at your own discretion.

In the following example, two new VM extensions are defined and will be added to the list of available extensions on the next configure-director. This can be added to the end of your existing director.yml, or defined independently and set with no other configurations present.

There are no default VM Extensions on a deployed Ops Manager.

director.yml Example:

vmextensions-configuration:
- name: a_vm_extension
  cloud_properties:
    source_dest_check: false
- name: another_vm_extension
  cloud_properties:
    foo: bar
...

VM Types

You may specify custom VM types to be used in deployments. To learn more about how various IAAS's support and use these types, see the Bosh docs.

Using VM Types for your director configuration is an advanced feature of Ops Manager. VM Types are not required to run a foundation(s), and will change default behavior if defined.

Use at your own discretion.

In the following example, two new VM types are defined and will be added to the list of available types on the next configure-director. This can be added to the end of your existing director.yml, or defined independently and set with no other configurations present.

director.yml Example:

vmtypes-configuration:
  custom_only: false
  vm_types:
  - name: x1.large
    cpu: 8
    ram: 8192
    ephemeral_disk: 10240
  - name: mycustomvmtype
    cpu: 4
    ram: 16384
    ephemeral_disk: 4096
...

Precedence

• If custom_only is true, the VM types specified in your configuration will replace the entire list of available VM types in the Ops Manager.
• If the property is set to false or is omitted, configure_director will append the listed VM types to the list of default VM types for your IaaS.
• If a specified VM type is named the same as a predefined VM type, it will overwrite the predefined type.
• If multiple specified VM types have the same name, the one specified last will be created.
• Existing custom VM types do not persist across configure-director calls, and it should be expected that the entire list of custom VM types is specified in the director configuration.