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+*** Comments ***
+#   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   Library providing keywords for CRUD operations over Network Slice Templates with OSM client.
+Library   OperatingSystem
+
+
+*** Variables ***
+${SUCCESS_RETURN_CODE}   0
+
+
+*** Keywords ***
+Create User
+    [Documentation]   Create a user in OSM with the name and password passed as arguments, and return the user id.
+    [Arguments]   ${user_name}   ${user_password}
+    Should Not Be Empty   ${user_name}
+    Should Not Be Empty   ${user_password}
+    ${rc}   ${stdout}=   Run And Return Rc And Output   osm user-create ${user_name} --password ${user_password}
+    Log   ${stdout}
+    Should Be Equal As Integers   ${rc}   ${SUCCESS_RETURN_CODE}
+    RETURN   ${stdout}
+
+Update User Password
+    [Documentation]   Update the password of a user in OSM.
+    [Arguments]   ${user_name}   ${user_password}   ${user_new_password}
+    Should Not Be Empty   ${user_name}
+    Should Not Be Empty   ${user_password}
+    Should Not Be Empty   ${user_new_password}
+    ${rc}   ${stdout}=   Run And Return Rc And Output   osm user-update ${user_name} --current-password ${user_password} --new-password ${user_new_password}
+    Log   ${stdout}
+    Should Be Equal As Integers   ${rc}   ${SUCCESS_RETURN_CODE}
+
+Update User Role
+    [Documentation]   Update the role of a user in a project in OSM.
+    [Arguments]   ${user_name}   ${project_name}   ${role_name}
+    Should Not Be Empty   ${user_name}
+    Should Not Be Empty   ${project_name}
+    Should Not Be Empty   ${role_name}
+    ${rc}   ${stdout}=   Run And Return Rc And Output   osm user-update --add-project-role '${project_name},${role_name}' ${user_name}
+    Log   ${stdout}
+    Should Be Equal As Integers   ${rc}   ${SUCCESS_RETURN_CODE}
+
+Check If User Exists
+    [Documentation]   Check if a user exists in OSM.
+    [Arguments]   ${user_name}
+    Should Not Be Empty   ${user_name}
+    ${rc}   ${stdout}=   Run And Return RC And Output   osm user-list | awk 'NR>3 {print $2}' | grep "${user_name}"
+    Log   ${stdout}
+    Should Be Equal As Integers   ${rc}   ${SUCCESS_RETURN_CODE}
+
+Delete User
+    [Documentation]   Delete from OSM the user passed as argument.
+    [Arguments]   ${user_name}
+    ${rc}   ${stdout}=   Run And Return Rc And Output   osm user-delete ${user_name}
+    Log   ${stdout}
+    Should Be Equal As Integers   ${rc}   ${SUCCESS_RETURN_CODE}