+All tests in the testsuites have tags. Tags allow to run only a set of tests
+identified by a tag. Several tags can be specified when running robot in the
+following way:
+
+```bash
+robot -i <tag_01> -i <tag_02> testsuite/
+```
+
+The following tags exist for each testsuite:
+
+- A tag per testsuite using its mnemonic (e.g. `basic_01`)
+- Cluster tag for each of the statistically similar tests:
+ - `cluster_main`: `basic_01`, `basic_05`, `basic_08`, `basic_09`, `basic_15`,
+ `basic_16`, basic_17`, `hackfest_basic`, `hackfest_multivdu`,
+ `hackfest_cloudinit`, `quotas_01`
+ - `cluster_ee_config`: `basic_06`, `basic_07`, `basic_11`, `basic_12`,
+ `basic_13`, `basic_14`, `k8s_05`, `k8s_06`
+ - `cluster_relations`: `basic_11`, `basic_13`, `basic_14`
+ - `cluster_epa`: `epa_01`, `epa_02`, `epa_03`, `epa_04`, `epa_05`
+ - `cluster_k8s`: `k8s_01`, `k8s_02`, `k8s_03`, `k8s_04`, `k8s_07`, `sa_08`
+ - `cluster_k8s_charms`: `k8s_05`, `k8s_06`
+ - `cluster_sa`: `sa_01`, `sa_02`, `sa_07`
+ - `cluster_slices`: `slice_01`, `slice_02`
+- daily: for all testsuites that will run in the daily job
+- regression: for all testsuites that should pass in the current stable branch
+- sanity: for all testsuites that should be passed by each commit in the
+ stage3 to be successfully verified by Jenkins, currently `basic_07`,
+ `basic_11`, `k8s_03`, `k8s_04`, `sa_02`
+
+In addition, the tag "cleanup" exists in those tests that perform
+any deletion. In that way, it can be invoked to retry the deletion if
+the tests were forcefully stopped.