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setup_dbt2_driver

This role is for setting up a server for the DBT-2 terminal emulators (a.k.a. the driver) transaction manager.

This is required in a 3-tier or 2-tier client-server configurations.

Requirements

Following are the requirements of this role.

  1. Ansible

Role Variables

When executing the role via ansible these are the required variables:

  • dbt2_version

These playbooks can install any version of DBT-2 that is packaged into an AppImage from GitHub. See the following link for available versions: https://github.com/osdldbt/dbt2/releases

  • dbt2_path

This is the location where the DBT-2 AppImage will be installed. For ease of use, try to set this location within a directory along the executable PATH. Unless necessary, there shouldn't be any reason to change this default.

  • pg_owner

This is used to ensure the operating system user to use for running the DBT-2 client is created. For ease of autoamtion, this should be the same user that is defined for the setup_dbt2 role. A different default is set depending on which vars file is inherited, which is based on the PostgreSQL distribution selected.

These variables can be assigned in the pre_tasks definition of the section: How to include the setup_dbt2_driver role in your Playbook.

Example Playbook

Inventory file content

Content of the inventory.yml file:

all:
  children:
    dbt2_driver:
      hosts:
        dbt2_driver.dbt2.internal:
          ansible_host: 10.1.1.19
          private_ip: 10.1.1.19

Playbook file content

Content of the inventory.yml file:

Below is an example of how to include the setup_dbt2_driver role:

---
- hosts: all
  name: Postgres deployment playbook for DBT-2 terminal emulator configuration.
  become: yes
  gather_facts: yes
  any_errors_fatal: True
  max_fail_percentage: 0

  collections:
    - edb_devops.edb_postgres

  roles:
    - role: setup_dbt2_driver
      when: "'setup_dbt2_driver' in lookup('edb_devops.edb_postgres.supported_roles', wantlist=True)"

Playbook execution examples

# To deploy community Postgres version 13 with the user centos
$ ansible-playbook playbook.yml \
  -i inventory.yml \
  -u centos \
  --private-key <key.pem> \
  --extra-vars="pg_version=13 pg_type=PG"

License

BSD

Author information

Author: