The gce_tag module can support updating tags on multiple instances via an instance_pattern field. Full Python regex is supported in the instance_pattern field.
'instance_pattern' and 'instance_name' are mutually exclusive and one must be specified.
The integration test for the gce_tag module has been updated to support the instance_pattern parameter. Unit tests have been added to test the list-manipulation functionality.
Run the integration test with:
TEST_FLAGS='--tags "test_gce_tag"' make gce
Run the unit tests with:
python test/units/modules/cloud/google/test_gce_tag.py
