including generated link to thanos - CPU usage

clouds/g1/brno/security_incidents/README.md

@@ -27,6 +27,11 @@ MetaCentrum Security cleans up the resources
 - [`./destroy_the_vm.sh`](./destroy_the_vm.sh)
 
 
+#### Links and metrics
+ - absolute [CPU usage](https://thanos-query1.cloud.muni.cz/graph?g0.expr=libvirt_domain_info_cpu_time_seconds_total&g0.tab=1&g0.stacked=0&g0.range_input=1h&g0.max_source_resolution=0s&g0.deduplicate=1&g0.partial_response=0&g0.store_matches=%5B%5D) is calculated as `sum(increase(libvirt_domain_info_cpu_time_seconds_total ...))` per given time T. 
+   - relative usage is then calculated as `libvirt_domain_info_cpu_time_seconds_total / T * 100`. To normalize it regarding the CPU cores, divide it by number of cores.
+
+
 #### The provided automation requires following to be in place
 | Script                                           | Requires                                                                                                                               |
 |--------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------|

clouds/g1/brno/security_incidents/identify_cloud_resources.sh

@@ -78,7 +78,8 @@ echo "* * name: $(echo "${project_json}" | jq -r '.name')"
 echo "* volumes: $(echo "${server_json}" | jq -rc '.volumes_attached')"
 hypervisor_hostname="$(echo "${server_json}" | jq -rc '."OS-EXT-SRV-ATTR:host"')"
 echo "* hypervisor: ${hypervisor_hostname}"
-echo "* libvirt-domain-name: $(echo "${server_json}" | jq -rc '."OS-EXT-SRV-ATTR:instance_name"')"
+libvirt_domain_name=$(echo "${server_json}" | jq -rc '."OS-EXT-SRV-ATTR:instance_name"')
+echo "* libvirt-domain-name: $libvirt_domain_name"
 echo "* security-groups: $(echo "${server_json}" | jq -rc '.security_groups')"
 security_group_names=$(echo "${server_json}" | jq -r '.security_groups[] | .name')
 security_groups_json=$(openstack security group list --project ${project_id} -fjson)
@@ -94,3 +95,9 @@ if ssh ${SSH_ARGS} "root@${hypervisor_hostname}" "uname -a" >/dev/null; then
 else
     echo "Libvirt domain block device list is not available."
 fi
+
+
+VM_CPU_USAGE_THANOS_URL='https://thanos-query1.cloud.muni.cz/graph?g0.expr=sum(increase(libvirt_domain_info_cpu_time_seconds_total%7Bhostname%3D%22__HYPERVISOR_NAME__%22%2C%20domain%3D%22__LIBVIRT_DOMAIN__%22%7D%5B360s%5D))&g0.tab=1&g0.stacked=0&g0.range_input=1h&g0.max_source_resolution=0s&g0.deduplicate=1&g0.partial_response=0&g0.store_matches=%5B%5D'
+VM_CPU_USAGE_THANOS_URL=$(echo "$VM_CPU_USAGE_THANOS_URL" | sed s/__HYPERVISOR_NAME__/$hypervisor_hostname/)
+VM_CPU_USAGE_THANOS_URL=$(echo "$VM_CPU_USAGE_THANOS_URL" | sed s/__LIBVIRT_DOMAIN__/$libvirt_domain_name/)
+echo "* Link to Thanos metric - CPU usage:  $VM_CPU_USAGE_THANOS_URL"