# limitations under the License.
*** Settings ***
-Documentation [SA-02] VNF with VIM-based metrics and auto-scaling.
+Documentation [SA-02] VNF with VIM-based metrics and auto-scaling.
Library OperatingSystem
Library String
*** Variables ***
+# NS instantiation parameters
+${ns_config} {vld: [ {name: mgmtnet, vim-network-name: %{VIM_MGMT_NET}} ] }
+
+# NS and VNF descriptor package folder and ids
+${vnfd_pkg} hackfest_basic_metrics_vnf
+${vnfd_name} hackfest_basic_metrics-vnf
+${nsd_pkg} hackfest_basic_metrics_ns
+${nsd_name} hackfest_basic-ns-metrics
+
+# NS instance name and id
${ns_id} ${EMPTY}
+${ns_name} sa_02
+
+# SSH keys and username to be used
+${publickey} %{HOME}/.ssh/id_rsa.pub
+${privatekey} %{HOME}/.ssh/id_rsa
${username} ubuntu
${password} osm4u
-${vnf_member_index} 1
+
+# Prometheus polling interval and retries
+${prometheus_poll_retries} 15 times
+${prometheus_poll_timeout} 1 minute
+
+# Prometheus metrics to retrieve
+${metric_name} osm_cpu_utilization
+
+# VNF Variables
+${vnf_member_index} vnf
${vnf_ip_addr} ${EMPTY}
${vnf_id} ${EMPTY}
-${ns_config} {vld: [ {name: mgmtnet, vim-network-name: %{VIM_MGMT_NET}} ] }
+
+${success_return_code} 0
*** Test Cases ***
Create VNF Descriptor
- Create VNFD '%{PACKAGES_FOLDER}/${vnfd_pkg}'
+ Create VNFD '%{PACKAGES_FOLDER}/${vnfd_pkg}'
+
+
+Get Scale-Out Threshold From VNF
+
+ ${rc} ${stdout}= Run and Return RC and Output osm vnfpkg-show ${vnfd_name} --literal | yq '.df[0]."scaling-aspect"[0]."scaling-policy"[0]."scaling-criteria"[0]."scale-out-threshold"' | tr -d \\"
+ Should Be Equal As Integers ${rc} ${success_return_code} msg=${stdout} values=False
+ ${scaleout_threshold}= Convert To Number ${stdout}
+ Set Suite Variable ${metric_threshold} ${scaleout_threshold}
+ log ${metric_threshold}
Create NS Descriptor
- Create NSD '%{PACKAGES_FOLDER}/${nsd_pkg}'
+ Create NSD '%{PACKAGES_FOLDER}/${nsd_pkg}'
Instantiate Network Service
- ${id}= Create Network Service ${nsd_name} %{VIM_TARGET} ${ns_name} ${ns_config} ${publickey}
- Set Suite Variable ${ns_id} ${id}
+ ${id}= Create Network Service ${nsd_name} %{VIM_TARGET} ${ns_name} ${ns_config} ${publickey}
+ Set Suite Variable ${ns_id} ${id}
Get VNF Id
- @{vnfr_list}= Get Ns Vnfr Ids ${ns_id}
- Log List ${vnfr_list}
+ @{vnfr_list}= Get Ns Vnfr Ids ${ns_id}
+ Log List ${vnfr_list}
Set Suite Variable ${vnf_id} ${vnfr_list}[0]
Get VNF IP Address
- ${ip_addr}= Get Vnf Management Ip Address ${ns_id} ${vnf_member_index}
+ ${ip_addr}= Get Vnf Management Ip Address ${ns_id} ${vnf_member_index}
log ${ip_addr}
Set Suite Variable ${vnf_ip_addr} ${ip_addr}
Get VNF VIM-based Metric Before Auto-scaling
- Variable Should Exist ${prometheus_poll_retries} msg=Metric polling retries is not available
- Variable Should Exist ${prometheus_poll_timeout} msg=Metric polling timeout is not available
- Variable Should Exist ${prometheus_host} msg=Prometheus address is not available
- Variable Should Exist ${prometheus_port} msg=Prometheus port is not available
- Variable Should Exist ${metric_name} msg=Prometheus metric name is not available
- ${metric_value}= Wait Until Keyword Succeeds ${prometheus_poll_retries} ${prometheus_poll_timeout} Get Metric ${prometheus_host} ${prometheus_port} ${metric_name}
- Run Keyword Unless ${metric_value} > 0 Fail msg=The metric '${metric_name}' value is '${metric_value}'
- Run Keyword Unless ${metric_value} < ${metric_threshold} Fail msg=The metric '${metric_name}' value is higher than '${metric_threshold}' before scaling
+ Variable Should Exist ${prometheus_poll_retries} msg=Metric polling retries is not available
+ Variable Should Exist ${prometheus_poll_timeout} msg=Metric polling timeout is not available
+ Variable Should Exist ${prometheus_host} msg=Prometheus address is not available
+ Variable Should Exist ${prometheus_port} msg=Prometheus port is not available
+ Variable Should Exist ${metric_name} msg=Prometheus metric name is not available
+ ${metric_value}= Wait Until Keyword Succeeds ${prometheus_poll_retries} ${prometheus_poll_timeout} Get Metric ${prometheus_host} ${prometheus_port} ${metric_name}
+ Run Keyword If ${metric_value} <= 0 Fail msg=The metric '${metric_name}' value is '${metric_value}'
+ Run Keyword If ${metric_value} >= ${metric_threshold} Fail msg=The metric '${metric_name}' value is higher than '${metric_threshold}' before scaling
Increase VIM-based Metric To Force Auto-scaling
- Variable Should Exist ${privatekey} msg=SSH private key not available
+ Variable Should Exist ${privatekey} msg=SSH private key not available
Execute Remote Command Check Rc Return Output ${vnf_ip_addr} ${username} ${password} ${privatekey} for i in {1..9}; do yes > /dev/null & done
Wait VIM-based Metric To Exceed Threshold
- Variable Should Exist ${prometheus_poll_retries} msg=Metric polling retries is not available
- Variable Should Exist ${prometheus_poll_timeout} msg=Metric polling timeout is not available
- Wait Until Keyword Succeeds ${prometheus_poll_retries} ${prometheus_poll_timeout} Check VIM-based Metric Exceeds Threshold
+ Variable Should Exist ${prometheus_poll_retries} msg=Metric polling retries is not available
+ Variable Should Exist ${prometheus_poll_timeout} msg=Metric polling timeout is not available
+ Wait Until Keyword Succeeds ${prometheus_poll_retries} ${prometheus_poll_timeout} Check VIM-based Metric Exceeds Threshold
Get VDUs After Auto-scaling
- Sleep 2 minutes Wait for auto-scale to take place
- @{vdur_list}= Get Vnf Vdur Names ${vnf_id}
- Log List ${vdur_list}
- ${vdurs}= Get Length ${vdur_list}
- Run Keyword Unless ${vdurs} > 1 Fail msg=There is no new VDU after auto-scaling
+ Sleep 2 minutes Wait for auto-scale to take place
+ @{vdur_list}= Get Vnf Vdur Names ${vnf_id}
+ Log List ${vdur_list}
+ ${vdurs}= Get Length ${vdur_list}
+ Run Keyword If ${vdurs} <= 1 Fail msg=There is no new VDU after auto-scaling
Delete NS Instance
[Tags] cleanup
- Delete NS ${ns_name}
+ Delete NS ${ns_name}
Delete NS Descriptor
[Tags] cleanup
- Delete NSD ${nsd_name}
+ Delete NSD ${nsd_name}
Delete VNF Descriptor
[Tags] cleanup
- Delete VNFD ${vnfd_name}
+ Delete VNFD ${vnfd_name}
*** Keywords ***
Suite Cleanup
- [Documentation] Test Suite Cleanup: Deleting descriptors and NS instance
+ [Documentation] Test Suite Cleanup: Deleting descriptors and NS instance
- Run Keyword If Any Tests Failed Delete NS ${ns_name}
- Run Keyword If Any Tests Failed Delete NSD ${nsd_name}
- Run Keyword If Any Tests Failed Delete VNFD ${vnfd_name}
+ Run Keyword If Any Tests Failed Delete NS ${ns_name}
+ Run Keyword If Any Tests Failed Delete NSD ${nsd_name}
+ Run Keyword If Any Tests Failed Delete VNFD ${vnfd_name}
Check VIM-based Metric Exceeds Threshold
- [Documentation] Auxiliar keyword to check if metric exceeds threshold
+ [Documentation] Auxiliar keyword to check if metric exceeds threshold
- Variable Should Exist ${prometheus_host} msg=Prometheus address is not available
- Variable Should Exist ${prometheus_port} msg=Prometheus port is not available
- Variable Should Exist ${metric_name} msg=Prometheus metric name is not available
- ${metric_value}= Get Metric ${prometheus_host} ${prometheus_port} ${metric_name}
- Run Keyword Unless ${metric_value} > ${metric_threshold} Fail msg=The metric '${metric_name}' value is '${metric_value}' which is lower than '${metric_threshold}'
+ Variable Should Exist ${prometheus_host} msg=Prometheus address is not available
+ Variable Should Exist ${prometheus_port} msg=Prometheus port is not available
+ Variable Should Exist ${metric_name} msg=Prometheus metric name is not available
+ ${metric_value}= Get Metric ${prometheus_host} ${prometheus_port} ${metric_name}
+ Run Keyword If ${metric_value} <= ${metric_threshold} Fail msg=The metric '${metric_name}' value is '${metric_value}' which is lower than '${metric_threshold}'