[SO] MariaDB Galera connectivity with SO Issue-ID:SO-3829

Issue-ID: SO-3829

Change-Id: I53423414ef71a69ac88c89fe2259f7cb8365770a
Signed-off-by: biswajit.deswali <Biswajit.Deswali@amdocs.com>

1 files changed, 48 insertions, 0 deletions

diff --git a/robot/resources/mariadb_galera_interface.robot b/robot/resources/mariadb_galera_interface.robot
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+*** Settings ***
+Documentation     The main interface for interacting with Mariadb Galera. It contains the keywords which will login to the Mariadb Galera pod and validates SO databases connectivity.
+
+Library               Collections
+Library               OperatingSystem
+Library               String
+
+*** Variables ***
+&{MARIADB_GALERA_CREDENTIALS}               user=root  password=secretpassword
+@{MARIADB_GALERA_SO_DATABASES}              catalogdb  requestdb  camundabpmn
+@{CONNECTION_ERROR_MESSAGE}                 Can't connect  No such file or directory  command terminated
+${POD_LOGGED_IN_MESSAGE}                    logged into Mariadb Galera pod
+${MYSQL_STATUS_MESSAGE}                     Current database:
+
+
+*** Keywords ***
+Fetch Namespace
+    [Documentation]    This keyword is responsible for fetching and returning the value of namespace from the provided Global IP Address variable.
+    [Arguments]    ${GLOBAL_INJECTED_SO_BPMN_IP_ADDR}
+    ${namespace}=    Evaluate    "${GLOBAL_INJECTED_SO_BPMN_IP_ADDR}".split(".")[-1]
+    [Return]    ${namespace}
+
+Check for Mariadb Galera Pod Connection
+    [Documentation]    This keyword is responsible for logging into the Mariadb Galera pod and check if we can login to the Mariadb Galera pod. To verify we print a string and match the output whether the same string was returned or not.
+    [Arguments]    ${message}=${POD_LOGGED_IN_MESSAGE}
+    ${namespace}=    Fetch Namespace    ${GLOBAL_INJECTED_SO_BPMN_IP_ADDR}
+    # Extracting the mariadb galera pod and storing it into a variable
+    ${mariadb_pod}=    Run    kubectl -n ${namespace} get po -o name | grep -w 'mariadb-galera-[0-9]'
+    ${pod_connectivity_command}=    Catenate    kubectl -n ${namespace} exec ${mariadb_pod} -- sh -c "echo ${message}"
+    ${pod_connectivity_output}=    Run    ${pod_connectivity_command}
+    # The output should contain the exact same message which we are printing by logging into the Mariadb Galera pod
+    Should Contain    ${pod_connectivity_output}    ${message}    ignore_case=True
+
+Check for SO Databases Connection
+    [Documentation]    This keyword is responsible for logging into the Mariadb Galera pod and check if we can login to the SO MySQL Databases.
+    ${namespace}=    Fetch Namespace    ${GLOBAL_INJECTED_SO_BPMN_IP_ADDR}
+    # Extracting the mariadb galera pod and storing it into a variable
+    ${mariadb_pod}=    Run    kubectl -n ${namespace} get po -o name | grep -w 'mariadb-galera-[0-9]'
+    # Looping through all 3 mariadb galera databases (catalogdb, requestdb and camundabpmn) to validate SO connectivity
+    FOR    ${index}    IN RANGE    3
+           ${mysql_connectivity_command}=    Catenate    kubectl -n ${namespace} exec ${mariadb_pod} -- sh
+               ...  -c "mysql -u ${MARIADB_GALERA_CREDENTIALS}[user] -p${MARIADB_GALERA_CREDENTIALS}[password] ${MARIADB_GALERA_SO_DATABASES}[${index}]
+               ...  -e 'status'"
+           ${mysql_connectivity_output}=    Run    ${mysql_connectivity_command}
+           # The output should contain the message that is having SO databases name.
+           Should Contain    ${mysql_connectivity_output}    ${MYSQL_STATUS_MESSAGE}	${MARIADB_GALERA_SO_DATABASES}[${index}]    ignore_case=True
+           Should Not Contain Any    ${CONNECTION_ERROR_MESSAGE}    ${mysql_connectivity_output}    ignore_case=True
+    END