Merge branch 't32798-molecule-tests_ha_pgsql-docker' into 'master'

.gitlab-ci.yml

Makefile

ansible/molecule/default/molecule.yml

ansible/molecule/ha-pgsql/converge.yml

ansible/molecule/ha-pgsql/molecule.yml

ansible/molecule/ha-pgsql/tests/commons.py

ansible/molecule/ha-pgsql/tests/test_postgres_a_setup.py

...molecule/ha-pgsql/tests/test_postgres_b_cluster_status.py

...le/ha-pgsql/tests/test_postgres_c_test_cluster_primary.py

.../ha-pgsql/tests/test_postgres_d_test_cluster_secondary.py

...lecule/ha-pgsql/tests/test_postgres_e_shutdown_primary.py

...pgsql/tests/test_postgres_f_new_primary_cluster_status.py

...ecule/ha-pgsql/tests/test_postgres_g_new_primary_write.py

...cule/ha-pgsql/tests/test_postgres_h_reintegrate_server.py

...le/ha-pgsql/tests/test_postgres_i_final_cluster_status.py

ansible/playbooks/postgres-maintenance.yml

ansible/playbooks/site.yml

ansible/playbooks/site_docker.yml

ansible/requirements.dev.in

ansible/requirements.dev.txt