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#Copyright 2017-present Open Networking Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
*** Settings ***
Documentation Provide the function to perform system related test
Suite Setup Common Test Suite Setup
Test Setup Setup
Test Teardown Teardown
Resource ../../libraries/onos.robot
Resource ../../libraries/voltctl.robot
Resource ../../libraries/voltha.robot
Resource ../../libraries/utils.robot
Resource ../../libraries/k8s.robot
Resource ../../variables/variables.robot
*** Variables ***
${timeout} 120s
${desired_ETCD_cluster_size} 3
${minimal_ETCD_cluster_size} 2
${namespace} voltha
${INFRA_NAMESPACE} default
${ETCD_resources} statefulsets
${ETCD_name} etcd
${ETCD_pod_label_key} app
${common_pod_label_key} app
${rwcore_pod_label_value} rw-core
${ofagent_pod_label_value} ofagent
${adapter_openolt_pod_label_value} ${OLT_ADAPTER_APP_LABEL}
${teardown_device} false
${has_dataplane} false
${suppressaddsubscriber} True
# Per-test logging on failure is turned off by default; set this variable to enable
${container_log_dir} ${None}
# logging flag to enable Collect Logs, can be passed via the command line too
# example: -v logging:False
${logging} True
*** Test Cases ***
ETCD Scale Test
[Documentation] Perform the sanity test if some ETCD endpoints crash
[Tags] functional bbsim
[Setup] Run Keywords Start Logging EtcdScaleTest
... AND Setup
[Teardown] Run Keywords Collect Logs
... AND Teardown Suite
... AND Stop Logging EtcdScaleTest
${current_size}= Get ETCD Replica Count ${INFRA_NAMESPACE}
Pass Execution If '${current_size}' != '${desired_ETCD_cluster_size}'
... 'Skip the test if the cluster size smaller than minimal size 3'
# The minimal cluster size after scale down
# based on https://github.com/ETCD-io/ETCD/blob/master/Documentation/faq.md#what-is-failure-tolerance
Scale ETCD ${INFRA_NAMESPACE} ${minimal_ETCD_cluster_size}
Wait Until Keyword Succeeds ${timeout} 2s
... Validate ETCD Size ${INFRA_NAMESPACE} ${minimal_ETCD_cluster_size}
# Perform the sanity-test
Wait Until Keyword Succeeds ${timeout} 2s Perform Sanity Test
# We scale up the size to 3, the recommended size of ETCD cluster.
Scale ETCD ${INFRA_NAMESPACE} ${desired_ETCD_cluster_size}
Wait Until Keyword Succeeds ${timeout} 2s
... Validate ETCD Size ${INFRA_NAMESPACE} ${desired_ETCD_cluster_size}
# Perform the sanity-test again
Run Keyword If ${has_dataplane} Clean Up Linux
Wait Until Keyword Succeeds ${timeout} 2s Perform Sanity Test ${suppressaddsubscriber}
ETCD Failure Test
[Documentation] Failure Scenario Test: ETCD Crash
[Tags] FailureTest
[Setup] Start Logging EtcdFailureTest
[Teardown] Run Keywords Collect Logs
... AND Stop Logging EtcdFailureTest
Delete K8s Pods By Label ${INFRA_NAMESPACE} ${ETCD_pod_label_key} ${ETCD_name}
#Wait Until Keyword Succeeds ${timeout} 2s
#... Pods Do Not Exist By Label ${INFRA_NAMESPACE} ${ETCD_pod_label_key} ${ETCD_name}
Wait Until Keyword Succeeds ${timeout} 2s
... Pods Are Ready By Label ${namespace} ${common_pod_label_key} ${rwcore_pod_label_value}
Wait Until Keyword Succeeds ${timeout} 2s
... Pods Are Ready By Label ${namespace} ${common_pod_label_key} ${ofagent_pod_label_value}
Wait Until Keyword Succeeds ${timeout} 2s
... Pods Are Ready By Label ${namespace} ${common_pod_label_key} ${adapter_openolt_pod_label_value}
*** Keywords ***
Get ETCD Replica Count
[Arguments] ${namespace}
[Documentation] Get the number of configured ETCD nodes
${rc} ${size}= Run and Return Rc and Output
... kubectl -n ${namespace} get ${ETCD_resources} ${ETCD_name} -o jsonpath='{.status.replicas}'
Should Be Equal As Integers ${rc} 0
[Return] ${size}
Scale ETCD
[Arguments] ${namespace} ${size}
[Documentation] Scale down the number of ETCD pod
${rc}= Run and Return Rc
... kubectl -n ${namespace} patch ${ETCD_resources} ${ETCD_name} -p '{"spec":{"replicas": ${size}}}'
Should Be Equal As Integers ${rc} 0
Validate ETCD Size
[Arguments] ${namespace} ${ETCD_cluster_size}
[Documentation] Scale down the number of ETCD pod
${rc} ${size}= Run and Return Rc and Output
... kubectl -n ${namespace} get ${ETCD_resources} ${ETCD_name} -o jsonpath='{.status.replicas}'
Should Be Equal As Integers ${rc} 0
Should Be Equal As Integers ${size} ${ETCD_cluster_size} Unexpected number of replicas
${rc} ${size}= Run and Return Rc and Output
... kubectl -n ${namespace} get ${ETCD_resources} ${ETCD_name} -o jsonpath='{.status.readyReplicas}'
Should Be Equal As Integers ${rc} 0
Should Be Equal As Integers ${size} ${ETCD_cluster_size} Unexpected number of ready replicas