YDA-5882 fix ordering Yoda DB indexes

Deploying a new environment with Yoda-specific database indexes enabled
failed, because the playbook tried to create the indexes before iRODS
created the tables that were to be indexed.

This fix moves the code for enabling or disabling the Yoda-specific
indexes to a separate role that is always run after both the database
and the provider have been deployed, so that this doesn't happen anymore.

playbook.yml

@@ -148,6 +148,15 @@
     - icat
 
 
+- name: Provision Yoda-specific database indexes
+  hosts: databases
+  become: true
+  roles:
+    - role: yoda_database_indexes
+  tags:
+    - database
+
+
 - name: Provision resource server
   hosts: resources
   become: true

roles/irods_database/defaults/main.yml

@@ -4,7 +4,6 @@
 irods_database_name: ICAT
 irods_database_user: irodsdb
 irods_database_password: irodsdev
-irods_database_enable_yoda_indexes: false
 
 icat_database_encoding: UTF-8
 icat_database_lc_collate: en_US.UTF-8

roles/irods_database/tasks/main.yml

@@ -45,7 +45,3 @@
     privs: CREATE
     type: schema
   when: pgsql_version >= 15
-
-
-- name: Setup Yoda databases indexes
-  ansible.builtin.include_tasks: "yoda_indexes.yml"

roles/yoda_database_indexes/defaults/main.yml

@@ -0,0 +1,5 @@
+---
+# copyright Utrecht University
+
+irods_database_name: ICAT
+irods_database_enable_yoda_indexes: false

roles/yoda_database_indexes/meta/main.yml

@@ -0,0 +1,19 @@
+---
+# copyright Utrecht University
+
+galaxy_info:
+  author: Sietse Snel
+  description: Install Yoda-specific database indexes
+  license: GPLv3
+  min_ansible_version: '2.11'
+  platforms:
+    - name: EL
+      version:
+        - 7
+        - 8
+    - name: Ubuntu
+      version: focal
+
+
+dependencies:
+  - role: postgresql