Ensure that all stability test rounds continue even if early rounds exhibit failures.

.cicd/eosio-test-stability.md

@@ -17,12 +17,15 @@ The [eosio-test-stability](https://buildkite.com/EOSIO/eosio-test-stability) pip
 ### Variables
 There are five primary environment variables relevant to stability testing:
 ```bash
-PINNED='true|false'    # whether to perform the test with pinned dependencies, or default dependencies
-ROUNDS='ℕ'             # natural number defining the number of gated rounds of tests to generate
-ROUND_SIZE='ℕ'         # number of test steps to generate per operating system, per round
-SKIP_MAC='true|false'  # conserve finite macOS Anka agents by excluding them from your testing
-TEST='name'            # PCRE expression defining the tests to run, preceded by '^' and followed by '$'
-TIMEOUT='ℕ'            # set timeout in minutes for all Buildkite steps
+CONTINUE_ON_FAILURE='true|false' # by default, only scheduled builds will continue to the following round if
+                                 # any test fails for the current round; however, this setting can be explicitly
+                                 # overriden by setting this variable to 'true'.
+PINNED='true|false'              # whether to perform the test with pinned dependencies, or default dependencies
+ROUNDS='ℕ'                       # natural number defining the number of gated rounds of tests to generate
+ROUND_SIZE='ℕ'                   # number of test steps to generate per operating system, per round
+SKIP_MAC='true|false'            # conserve finite macOS Anka agents by excluding them from your testing
+TEST='name'                      # PCRE expression defining the tests to run, preceded by '^' and followed by '$'
+TIMEOUT='ℕ'                      # set timeout in minutes for all Buildkite steps
 ```
 The `TEST` variable is parsed as [pearl-compatible regular expression](https://www.debuggex.com/cheatsheet/regex/pcre) where the expression in `TEST` is preceded by `^` and followed by `$`. To specify one test, set `TEST` equal to the test name (e.g. `TEST='read_only_query'`). Specify two tests as `TEST='(nodeos_short_fork_take_over_lr_test|read_only_query)'`. Or, perhaps, you want all of the `restart_scenarios` tests. Then, you could define `TEST='restart-scenario-test-.*'` and Buildkite will generate `ROUND_SIZE` steps each round for each operating system for all three restart scenarios tests.
 

.cicd/generate-pipeline.sh

@@ -448,7 +448,8 @@ EOF
         done
         IFS=$oIFS
         if [[ "$ROUND" != "$ROUNDS" ]]; then
-            echo '  - wait'
+            echo '  - wait: ~'
+            [[ "$BUILDKITE_SOURCE" == 'schedule' || "$CONTINUE_ON_FAILURE" == 'true' ]] && echo '    continue_on_failure: true'
             echo ''
         fi
     done
@@ -533,7 +534,7 @@ EOF
 fi
 # pipeline tail
 cat <<EOF
-  - wait:
+  - wait: ~
     continue_on_failure: true
 
   - label: ":bar_chart: Test Metrics"