Update to 2021-12-01 19:13

roles/repo_postgresql/defaults/main.yml

@@ -0,0 +1,5 @@
+---
+
+# Version of postgres to install. 'default' means takes the one from the standard repo
+# If a version is specified (like 10, 11, 12, 13 etc.), upstream repository will be configured
+pg_version: default

roles/repo_postgresql/tasks/main.yml

@@ -0,0 +1,8 @@
+---
+
+  # Here we use a template instead of yum_repository because
+  # we might need to set module_hotfixes = true for el8. And yum_repository
+  # doesn't support this setting
+- name: Configure Postgres repo
+  template: src=postgresql.repo.j2 dest=/etc/yum.repos.d/postgresql.repo
+  tags: pg,repo

roles/repo_postgresql/templates/postgresql.repo.j2

@@ -0,0 +1,11 @@
+{% if pg_version != 'default' %}
+[postgresql]
+baseurl = https://download.postgresql.org/pub/repos/yum/{{ pg_version }}/redhat/rhel-$releasever-$basearch
+gpgcheck = 1
+gpgkey = https://download.postgresql.org/pub/repos/yum/RPM-GPG-KEY-PGDG-{{ pg_version }}
+name = PostgreSQL
+{% if ansible_os_family == 'RedHat' and ansible_distribution_major_version is version('8', '>=') %}
+# Workaround a bug in dnf which would make the default module mask packages from postgres repo
+module_hotfixes = true
+{% endif %}
+{% endif %}