Add SLA Validations for Apex-PDP

- Add multiple apex microservice SLA tests
- Add single instance apex SLA tests
- Single instance SLA tests to be ran as part of CSIT runs
- Multiple microservice will not be ran as part of CSITs due to high resource consumption
- Multiple microservice SLA test results can be found in the linked JIRA
- Added setup scripts for multiple instance SLA tests
- nginx added for load balancing purposes for multiple apex instances

Issue-ID: POLICY-4530
Issue-ID: POLICY-4164
Change-Id: Ib86e96c57f4b7bf2b4f5e930fd7d4a3805b50687
Signed-off-by: Wayne Dunican <wayne.dunican@est.tech>
Signed-off-by: adheli.tavares <adheli.tavares@est.tech>
diff --git a/csit/resources/tests/apex-slas-3.robot b/csit/resources/tests/apex-slas-3.robot
new file mode 100644
index 0000000..13d5895
--- /dev/null
+++ b/csit/resources/tests/apex-slas-3.robot
@@ -0,0 +1,80 @@
+*** Settings ***
+Library    Collections
+Library    RequestsLibrary
+Library    OperatingSystem
+Library    DateTime
+Library    Process
+Library    json
+Resource    ${CURDIR}/common-library.robot
+Resource    ${CURDIR}/apex-pdp-common.robot
+
+*** Test Cases ***
+Healthcheck
+     [Documentation]    Runs Apex PDP Health check
+     ${hcauth}=  PolicyAdminAuth
+     ${resp}=  PerformGetRequest  ${APEX_IP}  /policy/apex-pdp/v1/healthcheck  200  null  ${hcauth}
+     Should Be Equal As Strings    ${resp.json()['code']}    200
+     Set Suite Variable    ${pdpName}    ${resp.json()['name']}
+
+ValidatePolicyExecutionAndEventRateLowComplexity
+    [Documentation]  Validate that a moderate complexity policity can be executed in less than 100ms and minimum 30 events triggered per second
+    Set Test Variable    ${policyName}    onap.policies.apex.pnf.Test
+    ${postjson}=  Get File  ${CURDIR}/data/${policyName}.json
+    CreatePolicy  /policy/api/v1/policytypes/onap.policies.native.Apex/versions/1.0.0/policies  200  ${postjson}  ${policyName}  1.0.0
+    DeployPolicy
+    Wait Until Keyword Succeeds    2 min    5 sec    QueryPolicyStatus  ${policyName}  defaultGroup  apex  ${pdpName}  onap.policies.native.Apex
+    GetTopic     APEX-CL-MGT
+    Create Session   apexSession  http://${DMAAP_IP}   max_retries=1
+    ${data}=    Get Binary File     ${CURDIR}/data/VesEventForPnfPolicy.json
+    &{headers}=  Create Dictionary    Content-Type=application/json    Accept=application/json
+    ${eventStartTime}=  Get Current Date
+    ${resp}=    POST On Session    apexSession    /events/unauthenticated.DCAE_CL_OUTPUT    data=${data}   headers=${headers}
+    Should Be Equal As Strings    ${resp.status_code}   200
+    ${eventEndTime}=  Get Current Date
+    ValidateEventExecution    ${eventStartTime}  ${eventEndTime}  30
+
+ValidatePolicyExecutionAndEventRateHighComplexity
+    [Documentation]  Validate that a high complexity policity can be executed in less than 5000ms and minimum 0.6 events triggered per second
+    Set Test Variable    ${policyName}    onap.policies.apex.pnf.metadataSet.Test
+    ${postjson}=  Get File  ${CURDIR}/data/${policyName}.json
+    CreatePolicy  /policy/api/v1/policytypes/onap.policies.native.Apex/versions/1.0.0/policies  200  ${postjson}  ${policyName}  1.0.0
+    ${postjson}=  Get File  ${CURDIR}/data/onap.pnf.metadataSet.Test.json
+    CreateNodeTemplate  /policy/api/v1/nodetemplates  200  ${postjson}  1
+    DeployPolicy
+    Wait Until Keyword Succeeds    2 min    5 sec    QueryPolicyStatus  ${policyName}  defaultGroup  apex  ${pdpName}  onap.policies.native.Apex
+    GetTopic     APEX-CL-MGT2
+    Create Session   apexSession  http://${DMAAP_IP}   max_retries=1
+    ${data}=    Get Binary File     ${CURDIR}/data/VesEventForVnfPolicy.json
+    &{headers}=  Create Dictionary    Content-Type=application/json    Accept=application/json
+    ${eventStartTime}=  Get Current Date
+    ${resp}=    POST On Session    apexSession    /events/unauthenticated.DCAE_POLICY_EXAMPLE_OUTPUT    data=${data}   headers=${headers}
+    Should Be Equal As Strings    ${resp.status_code}   200
+    ${eventEndTime}=  Get Current Date
+    ValidateEventExecution    ${eventStartTime}  ${eventEndTime}  0.6
+
+ValidatePolicyExecutionAndEventRateModerateComplexity
+    [Documentation]  Validate that a low complexity policity can be executed in less than 1000ms and minimum 3 events triggered per second
+    Set Test Variable    ${policyName}    onap.policies.native.apex.Sampledomain
+    ${postjson}=  Get File  ${CURDIR}/data/${policyName}.json
+    CreatePolicy  /policy/api/v1/policytypes/onap.policies.native.Apex/versions/1.0.0/policies  200  ${postjson}  ${policyName}  1.0.0
+    DeployPolicy
+    #Wait Until Keyword Succeeds    4 min    5 sec    RunEventOnApexEngine
+    Create Session   apexSession  http://${APEX_EVENTS_IP}   max_retries=1
+    ${data}=    Get Binary File     ${CURDIR}/data/event.json
+    &{headers}=  Create Dictionary    Content-Type=application/json    Accept=application/json
+    Sleep  60s
+    ${eventStartTime}=  Get Current Date
+    ${resp}=    PUT On Session    apexSession    /apex/FirstConsumer/EventIn    data=${data}   headers=${headers}
+    Should Be Equal As Strings    ${resp.status_code}   200
+    ${eventEndTime}=  Get Current Date
+    ValidateEventExecution    ${eventStartTime}  ${eventEndTime}  3
+
+WaitForPrometheusServer
+    [Documentation]  Sleep time to wait for Prometheus server to gather all metrics
+    Sleep    2 minutes
+
+ValidatePolicyExecutionTimes
+    [Documentation]    Validate policy execution times using prometheus metrics
+    ValidatePolicyExecution   pdpa_engine_average_execution_time_seconds{engine_instance_id="NSOApexEngine-0:0.0.1", instance="policy-apex-pdp:6969", job="apex-pdp-metrics"}  5000
+    ValidatePolicyExecution   pdpa_engine_average_execution_time_seconds{engine_instance_id="MyApexEngine-0:0.0.1"}  1000
+    ValidatePolicyExecution   pdpa_engine_average_execution_time_seconds{engine_instance_id="NSOApexEngine-1:0.0.1", instance="policy-apex-pdp:6969", job="apex-pdp-metrics"}  100