Add resource type for threads (vertical scaling)

Will fix #269 (closed).

• Kafka Streams
• Flink
• Hazelcast Jet
• Beam/Flink
• Beam/Samza

Might be backported as feature previews to 0.8.x (see #403 (closed)).

theodolite-benchmarks/definitions/uc1-beam-samza/uc1-beam-samza-benchmark-operator.yaml

@@ -36,6 +36,27 @@ spec:
       patchers:
         - type: "ReplicaPatcher"
           resource: "uc1-beam-samza-deployment.yaml"
+    - typeName: ThreadsAndPodResources
+      patchers:
+        - type: EnvVarPatcher
+          resource: uc1-beam-samza-deployment.yaml
+          properties:
+            container: uc1-beam-samza
+            variableName: SAMZA_JOB_CONTAINER_THREADS_POOL_SIZE
+        - type: ResourceLimitPatcher
+          resource: uc1-beam-samza-deployment.yaml
+          properties:
+            container: uc1-beam-samza
+            limitedResource: cpu
+            factor: 1000
+            format: m
+        - type: ResourceLimitPatcher
+          resource: uc1-beam-samza-deployment.yaml
+          properties:
+            container: uc1-beam-samza
+            limitedResource: memory
+            factor: 4
+            format: Gi
   loadTypes:
     - typeName: "NumSensors"
       patchers: