libraries/k8s.robot

# 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.
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#
# http://www.apache.org/licenses/LICENSE-2.0
#
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# distributed under the License is distributed on an "AS IS" BASIS,
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# voltctl common functions

*** Settings ***
Documentation     Library for various utilities
Library           SSHLibrary
Library           HttpLibrary.HTTP
Library           String
Library           DateTime
Library           Process
Library           Collections
Library           RequestsLibrary
Library           OperatingSystem

*** Keywords ***
Lookup Service IP
    [Arguments]    ${namespace}    ${name}
    [Documentation]    Uses kubeclt to resolve a service name to an IP
    ${rc}    ${ip}=    Run and Return Rc and Output
    ...    kubectl get svc -n ${namespace} ${name} -o jsonpath={.spec.clusterIP}
    Should Be Equal as Integers    ${rc}    0
    [Return]    ${ip}

Lookup Service PORT
    [Arguments]    ${namespace}    ${name}
    [Documentation]    Uses kubeclt to resolve a service name to an PORT
    ${rc}    ${port}=    Run and Return Rc and Output
    ...    kubectl get svc -n ${namespace} ${name} -o jsonpath={.spec.ports[0].port}
    Should Be Equal as Integers    ${rc}    0
    [Return]    ${port}

Restart Pod
    [Arguments]    ${namespace}    ${name}
    [Documentation]    Uses kubectl to force delete pod
    ${rc}    ${restart_pod_name}=    Run and Return Rc and Output
    ...    kubectl get pods -n ${namespace} | grep ${name} | awk 'NR==1{print $1}'
    Log    ${restart_pod_name}
    Should Not Be Empty    ${restart_pod_name}    Unable to parse pod name
    ${rc}    ${output}=    Run and Return Rc and Output    kubectl delete pod ${restart_pod_name} -n ${namespace} --grace-period=0 --force  
    Log    ${output}

Verify All Voltha Pods For Any Error Logs
    [Arguments]    ${datetime}
    [Documentation]    This keyword checks for the error occurence in the voltha pods
    &{errorPodDict}    Create Dictionary
    &{containerDict}    Get Container Dictionary
    FOR    ${podName}    IN    @{PODLIST1}
        ${containerName}    Get From Dictionary    ${containerDict}    ${podName}
        ${rc}    ${logOutput}    Run And Return Rc And Output    ${KUBECTL_CONFIG};kubectl logs --timestamps -n voltha --since-time=${datetime} ${containerName}
        Run Keyword And Ignore Error    Run Keyword If    '${logOutput}'=='${EMPTY}'    Run Keywords    Log    No Log found in pod ${podName}
        ...    AND    Continue For Loop
        ${errorDict}    Check For Error Logs in Pod Type1 Given the Log Output    ${logOutput}
        ${returnStatusFlagList}    Get Dictionary Keys    ${errorDict}
        ${returnStatusFlag}    Get From List    ${returnStatusFlagList}    0
        Run Keyword And Ignore Error    Run Keyword If    '${returnStatusFlag}'=='Nologfound'    Run Keywords    Log    No Error Log found in pod ${podName}
        ...    AND    Continue For Loop
        Run Keyword And Ignore Error    Run Keyword If    '${returnStatusFlag}'=='UnexpectedErrorfound'    Run Keywords    Log    Unexpected Error Log found in pod ${podName}
        ...    AND    Set to Dictionary    ${errorPodDict}    ${podName}    ${errorDict}
    END
    FOR    ${podName}    IN    @{PODLIST2}
        ${containerName}    Get From Dictionary    ${containerDict}    ${podName}
        ${rc}    ${logOutput}    Run And Return Rc And Output    ${KUBECTL_CONFIG};kubectl logs --timestamps -n voltha --since-time=${datetime} ${containerName}
        Run Keyword And Ignore Error    Run Keyword If    '${logOutput}'=='${EMPTY}'    Run Keywords    Log    No Log found in pod ${podName}
        ...    AND    Continue For Loop
        ${errorDict}    Check For Error Logs in Pod Type2 Given the Log Output    ${logOutput}
        ${returnStatusFlagList}    Get Dictionary Keys    ${errorDict}
        ${returnStatusFlag}    Get From List    ${returnStatusFlagList}    0
        Run Keyword And Ignore Error    Run Keyword If    '${returnStatusFlag}'=='Nologfound'    Run Keywords    Log    No Error Log found in pod ${podName}
        ...    AND    Continue For Loop
        Run Keyword And Ignore Error    Run Keyword If    '${returnStatusFlag}'=='UnexpectedErrorfound'    Run Keywords    Log    Unexpected Error Log found in pod ${podName}
        ...    AND    Set to Dictionary    ${errorPodDict}    ${podName}    ${errorDict}
    END
    Print to Console    Error Statement logged in the following pods : ${errorPodDict}
    [Return]    ${errorPodDict}

Check For Error Logs in Pod Type1 Given the Log Output
    [Arguments]    ${logOutput}    ${logLevel}=error    ${errorMessage}=${EMPTY}
    [Documentation]    Checks for error message in the particular list of pods
    Log    ${logOutput}
    ${linesContainingLog} =    Get Lines Matching Regexp    ${logOutput}    .*\s\${logLevel}.*    partial_match=true
    ${is_exec_status}    ${output}    Run Keyword And Ignore Error    Should Be Empty    ${linesContainingLog}
    ${returnStatusFlag}    Set Variable If    '${is_exec_status}'=='PASS'    Nologfound    '${is_exec_status}'=='FAIL'    Errorlogfound
    ${linesContainingError} =    Get Lines Matching Regexp    ${logOutput}    .*\s\${logLevel}.*${errorMessage}    partial_match=true
    ${is_exec_status}    ${output}    Run Keyword And Ignore Error    Should Be Empty    ${linesContainingError}
    ${returnStatusFlag}    Set Variable If    '${is_exec_status}'=='PASS'    UnexpectedErrorfound    '${is_exec_status}'=='FAIL'    MatchingErrorlogfound
    Log    {linesContainingError}
    &{errorDict}    Create Dictionary    ${returnStatusFlag}    ${linesContainingLog}
    [Return]    ${errorDict}

Check For Error Logs in Pod Type2 Given the Log Output
    [Arguments]    ${logOutput}    ${logLevel}=warn    ${errorMessage}=${EMPTY}
    [Documentation]    Checks for error message in the particular set of pods
    Log    ${logOutput}
    ${linesContainingLog} =    Get Lines Matching Regexp    ${logOutput}    .*?\s.*level.*${logLevel}.*    partial_match=true
    ${is_exec_status}    ${output}    Run Keyword And Ignore Error    Should Be Empty    ${linesContainingLog}
    ${returnStatusFlag}    Set Variable If    '${is_exec_status}'=='PASS'    Nologfound    '${is_exec_status}'=='FAIL'    Errorlogfound
    ${linesContainingError} =    Get Lines Matching Regexp    ${logOutput}    .*?\s.*level.*${logLevel}.*msg.*${errorMessage}    partial_match=true
    ${is_exec_status}    ${output}    Run Keyword And Ignore Error    Should Be Empty    ${linesContainingError}
    ${returnStatusFlag}    Set Variable If    '${is_exec_status}'=='PASS'    UnexpectedErrorfound    '${is_exec_status}'=='FAIL'    MatchingErrorlogfound
    Log    {linesContainingError}
    &{errorDict}    Create Dictionary    ${returnStatusFlag}    ${linesContainingLog}
    [Return]    ${errorDict}

Get Container Dictionary
    [Documentation]    Creates a mapping for pod name and container name and returns the same
    &{containerDict}    Create Dictionary
    ${containerName}    Set Variable    ${EMPTY}
    ${podName}    Run    ${KUBECTL_CONFIG};kubectl get deployment -n voltha | awk 'NR>1 {print $1}'
    @{podNameList}=    Split To Lines    ${podName}
    Append To List    ${podNameList}    voltha-etcd-cluster    voltha-kafka    voltha-ro-core    voltha-zookeeper
    Log    ${podNameList}
    #Creatiing dictionary to correspond pod name and container name
    FOR    ${pod}    IN    @{podNameList}
        ${containerName}    Run    ${KUBECTL_CONFIG};kubectl get pod -n voltha | grep ${pod} | awk '{print $1}'
        &{containerDict}    Set To Dictionary    ${containerDict}    ${pod}    ${containerName}
    END
    Log    ${containerDict}
    [Return]    ${containerDict}

Validate Error For Given Pods
    [Arguments]    ${datetime}    ${podDict}
    [Documentation]    This keyword is used to get the list of pods if there is any unexpected error in a particular pod(s) given the time-${datetime} from which the log needs to be analysed and the dictionary of pods and the error in the dictionary format ${podDict] .
    ...
    ...    Usage : ${returnStatusFlag} Validate Error For Given Pods ${datetime} ${podDict}
    ...    where,
    ...    ${datetime} = time from which the log needs to be taken
    ...    ${podDict} = Key-value pair of the pod name and the error msg expected like ${podDict} = Set Dictionary ${podDict} radius sample error message.
    ...
    ...    In case the radius pod log has any other error than the expected error, then the podname will be returned
    ${podList} =    Get Dictionary Keys    ${podDict}
    FOR    ${podName}    IN    @{podList}
        ${containerName}    Get From Dictionary    ${containerDict}    ${podName}
        ${expectedError}    Get From Dictionary    ${podDict}    ${podName}
        ${rc}    ${logOutput}    Run And Return Rc And Output    ${KUBECTL_CONFIG};kubectl logs --timestamps -n voltha --since-time=${datetime} ${containerName}
        Run Keyword And Ignore Error    Run Keyword If    '${logOutput}'=='${EMPTY}'    Run Keywords    Log    No Log found in pod ${podName}
        ...    AND    Continue For Loop
        ${returnStatusFlag}    Check For Error Logs in Pod Type1 Given the Log Output    ${logOutput}
        Run Keyword And Ignore Error    Run Keyword If    '${returnStatusFlag}'=='Nologfound'    Run Keywords    Log    No Error Log found in pod ${podName}
        ...    AND    Continue For Loop
        Run Keyword And Ignore Error    Run Keyword If    '${returnStatusFlag}'=='UnexpectedErrorfound'    Run Keywords    Log    Unexpected Error Log found in pod ${podName}
        ...    AND    Append To List    ${errorPodList}    ${podName}
    END
    [Return]    ${errorPodList}