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14 Documentation [SA-02] VNF with VIM-based metrics and auto-scaling.
16 Library OperatingSystem
21 Resource %{ROBOT_DEVOPS_FOLDER}/lib/vnfd_lib.robot
22 Resource %{ROBOT_DEVOPS_FOLDER}/lib/nsd_lib.robot
23 Resource %{ROBOT_DEVOPS_FOLDER}/lib/ns_lib.robot
24 Resource %{ROBOT_DEVOPS_FOLDER}/lib/ssh_lib.robot
25 Resource %{ROBOT_DEVOPS_FOLDER}/lib/prometheus_lib.robot
27 Variables %{ROBOT_DEVOPS_FOLDER}/resources/sa_02-vnf_with_vim_metrics_and_autoscaling_data.py
29 Force Tags sa_02 cluster_sa daily regression sanity
31 Suite Teardown Run Keyword And Ignore Error Suite Cleanup
38 ${vnf_member_index} vnf
39 ${vnf_ip_addr} ${EMPTY}
41 ${ns_config} {vld: [ {name: mgmtnet, vim-network-name: %{VIM_MGMT_NET}} ] }
42 ${success_return_code} 0
48 Create VNFD '%{PACKAGES_FOLDER}/${vnfd_pkg}'
51 Get Scale-Out Threshold From VNF
53 ${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 \\"
54 Should Be Equal As Integers ${rc} ${success_return_code} msg=${stdout} values=False
55 ${scaleout_threshold}= Convert To Number ${stdout}
56 Set Suite Variable ${metric_threshold} ${scaleout_threshold}
57 log ${metric_threshold}
62 Create NSD '%{PACKAGES_FOLDER}/${nsd_pkg}'
65 Instantiate Network Service
67 ${id}= Create Network Service ${nsd_name} %{VIM_TARGET} ${ns_name} ${ns_config} ${publickey}
68 Set Suite Variable ${ns_id} ${id}
73 @{vnfr_list}= Get Ns Vnfr Ids ${ns_id}
75 Set Suite Variable ${vnf_id} ${vnfr_list}[0]
80 ${ip_addr}= Get Vnf Management Ip Address ${ns_id} ${vnf_member_index}
82 Set Suite Variable ${vnf_ip_addr} ${ip_addr}
85 Get VNF VIM-based Metric Before Auto-scaling
87 Variable Should Exist ${prometheus_poll_retries} msg=Metric polling retries is not available
88 Variable Should Exist ${prometheus_poll_timeout} msg=Metric polling timeout is not available
89 Variable Should Exist ${prometheus_host} msg=Prometheus address is not available
90 Variable Should Exist ${prometheus_port} msg=Prometheus port is not available
91 Variable Should Exist ${metric_name} msg=Prometheus metric name is not available
92 ${metric_value}= Wait Until Keyword Succeeds ${prometheus_poll_retries} ${prometheus_poll_timeout} Get Metric ${prometheus_host} ${prometheus_port} ${metric_name}
93 Run Keyword Unless ${metric_value} > 0 Fail msg=The metric '${metric_name}' value is '${metric_value}'
94 Run Keyword Unless ${metric_value} < ${metric_threshold} Fail msg=The metric '${metric_name}' value is higher than '${metric_threshold}' before scaling
97 Increase VIM-based Metric To Force Auto-scaling
99 Variable Should Exist ${privatekey} msg=SSH private key not available
100 Execute Remote Command Check Rc Return Output ${vnf_ip_addr} ${username} ${password} ${privatekey} for i in {1..9}; do yes > /dev/null & done
103 Wait VIM-based Metric To Exceed Threshold
105 Variable Should Exist ${prometheus_poll_retries} msg=Metric polling retries is not available
106 Variable Should Exist ${prometheus_poll_timeout} msg=Metric polling timeout is not available
107 Wait Until Keyword Succeeds ${prometheus_poll_retries} ${prometheus_poll_timeout} Check VIM-based Metric Exceeds Threshold
110 Get VDUs After Auto-scaling
112 Sleep 2 minutes Wait for auto-scale to take place
113 @{vdur_list}= Get Vnf Vdur Names ${vnf_id}
114 Log List ${vdur_list}
115 ${vdurs}= Get Length ${vdur_list}
116 Run Keyword Unless ${vdurs} > 1 Fail msg=There is no new VDU after auto-scaling
128 Delete NSD ${nsd_name}
131 Delete VNF Descriptor
134 Delete VNFD ${vnfd_name}
139 [Documentation] Test Suite Cleanup: Deleting descriptors and NS instance
141 Run Keyword If Any Tests Failed Delete NS ${ns_name}
142 Run Keyword If Any Tests Failed Delete NSD ${nsd_name}
143 Run Keyword If Any Tests Failed Delete VNFD ${vnfd_name}
146 Check VIM-based Metric Exceeds Threshold
147 [Documentation] Auxiliar keyword to check if metric exceeds threshold
149 Variable Should Exist ${prometheus_host} msg=Prometheus address is not available
150 Variable Should Exist ${prometheus_port} msg=Prometheus port is not available
151 Variable Should Exist ${metric_name} msg=Prometheus metric name is not available
152 ${metric_value}= Get Metric ${prometheus_host} ${prometheus_port} ${metric_name}
153 Run Keyword Unless ${metric_value} > ${metric_threshold} Fail msg=The metric '${metric_name}' value is '${metric_value}' which is lower than '${metric_threshold}'