Adding prototype of role for generating happi database from IOC confi…

roles/happi_db_autogen/defaults/main.yml

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+---
+
+happi_db_autogen_directory: "/opt/happi_db_autogen"
+happi_db_autogen_beamline_acronym: "tst"
+happi_db_autogen_redis_url: "https://info.tst.nsls2.bnl.gov"
+happi_db_autogen_redis_prefix: ""
+
+
+# Base set of objects to instantiate
+
+happi_db_autogen_base_objects:
+  redis_md_server:
+    id: "redis_md_server"
+    name: "redis_md_server"
+    type: "HappiItem"
+    args:
+      - host: "{{ happi_db_autogen_redis_url}}"
+    active: true
+    last_edit: "{{ ansible_date_time.iso8601 }}"
+    device_class: "redis.Redis"
+
+  runengine_metadata:
+    _id: "runengine_metadata"
+    name: "runengine_metadata"
+    type: "HappiItem"
+    args:
+      - "redis_md_server"
+    kwargs:
+      prefix: "{{ happi_db_autogen_redis_prefix }}"
+    active: true
+    last_edit: "{{ ansible_date_time.iso8601 }}"
+    device_class: "redis_json_dict.RedisJSONDict"
+
+  RE:
+    _id: "RE"
+    name: "RE"
+    type: "HappiItem"
+    args:
+      - "runengine_metadata"
+    active: true
+    last_edit: "{{ ansible_date_time.iso8601 }}"
+    device_class: "bluesky.run_engine.RunEngine"
+
+  tiled_writing_client:
+    _id: "tiled_writing_client"
+    name: "tiled_writing_client"
+    type: "HappiItem"
+    active: true
+    args:
+      - "{{ happi_db_autogen_beamline_acronym }}"
+    last_edit: "{{ ansible_date_time.iso8601 }}"
+    device_class: "tiled.client.from_profile"
+
+  tiled_writer:
+    _id: "tiled_writer"
+    name: "tiled_writer"
+    type: "HappiItem"
+    active: true
+    args:
+      - "tiled_writing_client"
+    last_edit: "{{ ansible_date_time.iso8601 }}"
+    device_class: "bluesky.callbacks.tiled_writer.TiledWriter"

roles/happi_db_autogen/tasks/add-device-specific.yml

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+---
+
+- name: Replace and dashes with underscores in device name
+  ansible.builtin.set_fact:
+    happi_db_autogen_device_name:
+      "{{ happi_db_autogen_device_name |
+          replace('-', '_') }}"
+
+- name: Get device configuration
+  ansible.builtin.set_fact:
+    happi_db_autogen_device: "{{ host_config[happi_db_autogen_device_name] }}"
+
+- name: Check if vars file exists for device type
+  ansible.builtin.stat:
+    path: "{{ role_path }}/vars/{{ happi_db_autogen_device.type }}.yml"
+  register: device_type_vars_file
+  delegate_to: localhost
+
+- name: Add in device specific ophyd objects if defined
+  when: device_type_vars_file.stat.exists
+  block:
+    - name: Load device-specific objects
+      ansible.builtin.include_vars:
+        file: "vars/{{ happi_db_autogen_device.type }}.yml"
+
+    - name: Create new dictionary to store device-specific objects
+      ansible.builtin.set_fact:
+        happi_db_autogen_device_objs: {}
+
+    - name: Convert device objects to dictionary
+      ansible.builtin.set_fact:
+        happi_db_autogen_device_objs: >-
+          {{ happi_db_autogen_device_objs |
+              combine({ item._id : item }) }}
+      loop: "{{ happi_db_autogen_device_obj_list }}"
+
+    - name: Merge device-specific objects into Happi database contents
+      ansible.builtin.set_fact:
+        happi_db_autogen_contents:
+          "{{ happi_db_autogen_contents |
+              combine(happi_db_autogen_device_objs) }}"

roles/happi_db_autogen/tasks/main.yml

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+---
+
+- name: Ensure Happi database autogen directory exists
+  ansible.builtin.file:
+    path: "{{ happi_db_autogen_directory }}"
+    state: directory
+    owner: "root"
+    group: "root"
+    mode: "0755"
+
+- name: Create variable to store Happi database contents
+  ansible.builtin.set_fact:
+    happi_db_autogen_contents: {}
+
+- name: Merge in default objects
+  ansible.builtin.set_fact:
+    happi_db_autogen_contents:
+      "{{ happi_db_autogen_contents |
+          combine(happi_db_autogen_base_objects) }}"
+
+- name: Get list of IOC names from loaded config
+  ansible.builtin.set_fact:
+    happi_db_autogen_ioc_list:
+      "{{ happi_db_autogen_component_config |
+          dict2items |
+          selectattr('value', 'mapping') |
+          selectattr('value.type', 'defined') |
+          map(attribute='key') | list }}"
+
+- name: Merge in device specific objects
+  ansible.builtin.include_tasks: add-device-specific.yml
+  loop: "{{ happi_db_autogen_ioc_list }}"
+  loop_control:
+    loop_var: happi_db_autogen_device_name
+
+- name: Write out the contents of the Happi database
+  ansible.builtin.copy:
+    dest: "{{ happi_db_autogen_directory }}/{{ happi_db_autogen_beamline_acronym }}_happi_db.json" # yamllint disable-line rule:line-length
+    content: "{{ happi_db_autogen_contents | to_nice_json(sort_keys=False) }}"

roles/happi_db_autogen/vars/pandabox.yml

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+---
+
+happi_db_autogen_device_obj_list:
+  - _id: "{{ happi_db_autogen_device_name }}_path_provider"
+    name: "{{ happi_db_autogen_device_name }}_path_provider"
+    type: "HappiItem"
+    active: true
+    args: []
+    kwargs: {}
+    last_edit: "{{ ansible_date_time.iso8601 }}"
+    device_class: "nslsii.ophyd_async.providers.NSLS2PathProvider"
+
+  - _id: "{{ happi_db_autogen_device_name }}"
+    name: "{{ happi_db_autogen_device_name }}"
+    type: "OphydItem"
+    args:
+      - "{{ happi_db_autogen_device.environment.PREFIX }}"
+      - "{{ happi_db_autogen_device_name }}_path_provider"
+    kwargs:
+      name: "{{ happi_db_autogen_device_name }}"
+    prefix: "{{ happi_db_autogen_device.environment.PREFIX }}"
+    active: true
+    last_edit: "{{ ansible_date_time.iso8601 }}"
+    device_class: "ophyd_async.fastcs.panda.HDFPanda"