2 Documentation Resource housing Keywords common to several suites for cluster functional testing.
4 ... Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
6 ... This program and the accompanying materials are made available under the
7 ... terms of the Eclipse Public License v1.0 which accompanies this distribution,
8 ... and is available at http://www.eclipse.org/legal/epl-v10.html
11 ... This resource holds private state (in suite variables),
12 ... which is generated once at Setup.
13 ... The state includes IP addresses and Http (RequestsLibrary) sessions.
14 ... Most functionality deals with stopping/starting controllers
15 ... and finding leaders/followers for a Shard.
17 ... odl-jolokia is assumed to be installed.
19 ... Keywords are ordered from friendly ones to fiddly ones.
20 ... TODO: Figure out more deterministic but still user-friendly ordering.
22 ... TODO: Unify capitalization of Leaders and Followers.
24 ... TODO: Move Keywords related to iptables manipulation from ClusterKeywords
25 ... here, or to separate Resource.
26 Library RequestsLibrary # for Create_Session and To_Json
28 Resource ${CURDIR}/TemplatedRequests.robot # for Get_As_Json_From_Uri
29 Resource ${CURDIR}/Utils.robot # for Run_Command_On_Controller
32 ${JOLOKIA_CONF_SHARD_MANAGER_URI} jolokia/read/org.opendaylight.controller:Category=ShardManager,name=shard-manager-config,type=DistributedConfigDatastore
33 ${JOLOKIA_OPER_SHARD_MANAGER_URI} jolokia/read/org.opendaylight.controller:Category=ShardManager,name=shard-manager-operational,type=DistributedOperationalDatastore
34 ${JOLOKIA_READ_URI} jolokia/read/org.opendaylight.controller
35 ${KARAF_HOME} ${WORKSPACE}${/}${BUNDLEFOLDER}
36 ${RESTCONF_MODULES_DIR} ${CURDIR}/../variables/restconf/modules
39 ClusterManagement_Setup
40 [Documentation] Detect repeated call, or detect number of members and initialize derived suite variables.
41 # Avoid multiple initialization by several downstream libraries.
42 ${already_done} = BuiltIn.Get_Variable_Value \${ClusterManagement__has_setup_run} False
43 BuiltIn.Return_From_Keyword_If ${already_done}
44 BuiltIn.Set_Suite_Variable \${ClusterManagement__has_setup_run} True
45 ${status} ${possibly_int_of_members} = BuiltIn.Run_Keyword_And_Ignore_Error BuiltIn.Convert_To_Integer ${NUM_ODL_SYSTEM}
46 ${int_of_members} = BuiltIn.Set_Variable_If '${status}' != 'PASS' ${1} ${possibly_int_of_members}
47 ClusterManagement__Compute_Derived_Variables int_of_members=${int_of_members}
49 Kill_Members_From_List_Or_All
50 [Arguments] ${member_index_list}=${EMPTY} ${confirm}=True
51 [Documentation] If the list is empty, kill all ODL instances. Otherwise, kill members based on present indices.
52 ... If \${confirm} is True, sleep 1 second and verify killed instances are not there anymore.
53 ${command} = BuiltIn.Set_Variable ps axf | grep karaf | grep -v grep | awk '{print \"kill -9 \" $1}' | sh
54 Run_Command_On_List_Or_All command=${command} member_index_list=${member_index_list}
55 BuiltIn.Return_From_Keyword_If not ${confirm}
56 # TODO: Convert to WUKS with configurable timeout if it turns out 1 second is not enough.
57 BuiltIn.Sleep 1s Kill -9 closes open files, which may take longer than ssh overhead, but not long enough to warrant WUKS.
58 ${index_list} = ClusterManagement__Given_Or_Internal_Index_List given_list=${member_index_list}
59 : FOR ${index} IN @{index_list}
60 \ Verify_Karaf_Is_Not_Running_On_Member member_index=${index}
62 ClusterManagement__Build_List
64 ${member_int}= BuiltIn.Convert_To_Integer ${member}
65 ${index_list}= BuiltIn.Create_List ${member_int}
66 [Return] ${index_list}
69 [Arguments] ${member} ${confirm}=True
70 [Documentation] Convenience keyword that kills the specified member of the cluster.
71 ${index_list}= ClusterManagement__Build_List ${member}
72 Kill_Members_From_List_Or_All ${index_list} ${confirm}
74 Clean_Journals_And_Snapshots_On_List_Or_All
75 [Arguments] ${member_index_list}=${EMPTY}
76 [Documentation] Delete journal and snapshots directories on every node listed (or all).
77 ${index_list} = ClusterManagement__Given_Or_Internal_Index_List given_list=${member_index_list}
78 ${command} = Set Variable rm -rf "${KARAF_HOME}/journal" "${KARAF_HOME}/snapshots"
79 : FOR ${index} IN @{index_list} # usually: 1, 2, 3.
80 \ Run_Command_On_Member command=${command} member_index=${index}
82 Start_Members_From_List_Or_All
83 [Arguments] ${member_index_list}=${EMPTY} ${wait_for_sync}=True ${timeout}=300s
84 [Documentation] If the list is empty, start all cluster members. Otherwise, start members based on present indices.
85 ... If ${wait_for_sync}, wait for cluster sync on listed members.
86 ${command} = BuiltIn.Set_Variable ${KARAF_HOME}/bin/start
87 Run_Command_On_List_Or_All command=${command} member_index_list=${member_index_list}
88 BuiltIn.Return_From_Keyword_If not ${wait_for_sync}
89 BuiltIn.Wait_Until_Keyword_Succeeds ${timeout} 1s Check_Cluster_Is_In_Sync member_index_list=${member_index_list}
90 # TODO: Do we also want to check Shard Leaders here?
93 [Arguments] ${member} ${wait_for_sync}=True ${timeout}=300s
94 [Documentation] Convenience keyword that starts the specified member of the cluster.
95 ${index_list}= ClusterManagement__Build_List ${member}
96 Start_Members_From_List_Or_All ${index_list} ${wait_for_sync} ${timeout}
98 Verify_Leader_Exists_For_Each_Shard
99 [Arguments] ${shard_name_list} ${shard_type}=operational ${member_index_list}=${EMPTY} ${verify_restconf}=True
100 [Documentation] For each shard name, call Get_Leader_And_Followers_For_Shard.
101 ... Not much logic there, but single Keyword is useful when using BuiltIn.Wait_Until_Keyword_Succeeds.
102 : FOR ${shard_name} IN @{shard_name_list}
103 \ Get_Leader_And_Followers_For_Shard shard_name=${shard_name} shard_type=${shard_type} validate=True member_index_list=${member_index_list} verify_restconf=${verify_restconf}
105 Get_Leader_And_Followers_For_Shard
106 [Arguments] ${shard_name}=default ${shard_type}=operational ${validate}=True ${member_index_list}=${EMPTY} ${verify_restconf}=True
107 [Documentation] Get role lists, validate there is one leader, return the leader and list of followers.
108 ... Optionally, issue GET to a simple restconf URL to make sure subsequent operations will not encounter 503.
109 ${leader_list} ${follower_list} = Get_State_Info_For_Shard shard_name=${shard_name} shard_type=${shard_type} validate=True member_index_list=${member_index_list}
110 ... verify_restconf=${verify_restconf}
111 ${leader_count} = BuiltIn.Get_Length ${leader_list}
112 BuiltIn.Run_Keyword_If ${leader_count} < 1 BuiltIn.Fail No leader found.
113 BuiltIn.Length_Should_Be ${leader_list} ${1} Too many Leaders.
114 ${leader} = Collections.Get_From_List ${leader_list} 0
115 [Return] ${leader} ${follower_list}
117 Resolve_Http_Session_For_Member
118 [Arguments] ${member_index}
119 [Documentation] Return RequestsLibrary session alias pointing to node of given index.
120 ${session} = BuiltIn.Set_Variable ClusterManagement__session_${member_index}
123 Get_State_Info_For_Shard
124 [Arguments] ${shard_name}=default ${shard_type}=operational ${validate}=False ${member_index_list}=${EMPTY} ${verify_restconf}=False
125 [Documentation] Return lists of Leader and Follower member indices from a given member index list
126 ... (or from the full list if empty). If \${shard_type} is not 'config', 'operational' is assumed.
127 ... If \${validate}, Fail if raft state is not Leader or Follower (for example on Candidate).
128 ... The biggest difference from Get_Leader_And_Followers_For_Shard
129 ... is that no check on number of Leaders is performed.
130 ${index_list} = ClusterManagement__Given_Or_Internal_Index_List given_list=${member_index_list}
131 # TODO: Support alternative capitalization of 'config'?
132 ${ds_type} = BuiltIn.Set_Variable_If '${shard_type}' != 'config' operational config
133 ${leader_list} = BuiltIn.Create_List
134 ${follower_list} = BuiltIn.Create_List
135 : FOR ${index} IN @{index_list} # usually: 1, 2, 3.
136 \ ${raft_state} = Get_Raft_State_Of_Shard_At_Member shard_name=${shard_name} shard_type=${ds_type} member_index=${index} verify_restconf=${verify_restconf}
137 \ BuiltIn.Run_Keyword_If 'Follower' == '${raft_state}' Collections.Append_To_List ${follower_list} ${index}
138 \ ... ELSE IF 'Leader' == '${raft_state}' Collections.Append_To_List ${leader_list} ${index}
139 \ ... ELSE IF ${validate} BuiltIn.Fail Unrecognized Raft state: ${raft_state}
140 [Return] ${leader_list} ${follower_list}
142 Check_Cluster_Is_In_Sync
143 [Arguments] ${member_index_list}=${EMPTY}
144 [Documentation] Fail if no-sync is detected on a member from list (or any).
145 ${index_list} = ClusterManagement__Given_Or_Internal_Index_List given_list=${member_index_list}
146 : FOR ${index} IN @{index_list} # usually: 1, 2, 3.
147 \ ${status} = Get_Sync_Status_Of_Member member_index=${index}
148 \ # The previous line may have failed already. If not, check status.
149 \ BuiltIn.Continue_For_Loop_If 'True' == '${status}'
150 \ BuiltIn.Fail Index ${index} has incorrect status: ${status}
152 Verify_Karaf_Is_Not_Running_On_Member
153 [Arguments] ${member_index}
154 [Documentation] Fail if non-zero karaf instances are counted on member of given index.
155 ${count} = Count_Running_Karafs_On_Member member_index=${member_index}
156 BuiltIn.Should_Be_Equal 0 ${count} Found running Karaf count: ${count}
158 Verify_Single_Karaf_Is_Running_On_Member
159 [Arguments] ${member_index}
160 [Documentation] Fail if number of karaf instances on member of given index is not one.
161 ${count} = Count_Running_Karafs_On_Member member_index=${member_index}
162 BuiltIn.Should_Be_Equal 1 ${count} Wrong number of Karafs running: ${count}
164 Run_Command_On_List_Or_All
165 [Arguments] ${command} ${member_index_list}=${EMPTY}
166 [Documentation] Cycle through indices (or all), run command on each.
167 ${index_list} = ClusterManagement__Given_Or_Internal_Index_List given_list=${member_index_list}
168 : FOR ${index} IN @{index_list}
169 \ Run_Command_On_Member command=${command} member_index=${index}
171 Get_Sync_Status_Of_Member
172 [Arguments] ${member_index}
173 [Documentation] Obtain IP, two GETs from jolokia URIs, return combined sync status as string.
174 ${session} = Resolve_Http_Session_For_Member member_index=${member_index}
175 ${conf_text} = Get_As_Json_From_Uri uri=${JOLOKIA_CONF_SHARD_MANAGER_URI} session=${session}
176 ${conf_status} = ClusterManagement__Parse_Sync_Status shard_manager_text=${conf_text}
177 BuiltIn.Return_From_Keyword_If 'False' == ${conf_status} False
178 ${oper_text} = Get_As_Json_From_Uri uri=${JOLOKIA_OPER_SHARD_MANAGER_URI} session=${session}
179 ${oper_status} = ClusterManagement__Parse_Sync_Status shard_manager_text=${oper_text}
180 [Return] ${oper_status}
182 Run_Command_On_Member
183 [Arguments] ${command} ${member_index}
184 [Documentation] Obtain IP, call Utils and return output. This does not preserve active ssh session.
185 ${member_ip} = Collections.Get_From_Dictionary dictionary=${ClusterManagement__index_to_ip_mapping} key=${member_index}
186 ${output} = Utils.Run_Command_On_Controller ${member_ip} ${command}
189 Count_Running_Karafs_On_Member
190 [Arguments] ${member_index}
191 [Documentation] Remotely execute grep for karaf process, return count as string.
192 ${command} = BuiltIn.Set_Variable ps axf | grep karaf | grep -v grep | wc -l
193 ${count} = Run_Command_On_Member command=${command} member_index=${member_index}
196 Get_Raft_State_Of_Shard_At_Member
197 [Arguments] ${shard_name} ${shard_type} ${member_index} ${verify_restconf}=False
198 [Documentation] Send request to Jolokia on indexed member, return extracted Raft status.
199 ... Optionally, check restconf works.
200 ${session} = Resolve_Http_Session_For_Member member_index=${member_index}
201 # TODO: Does the used URI tend to generate large data which floods log.html?
202 BuiltIn.Run_Keyword_If ${verify_restconf} TemplatedRequests.Get_As_Json_Templated session=${session} folder=${RESTCONF_MODULES_DIR} verify=False
203 ${type_class} = Resolve_Shard_Type_Class shard_type=${shard_type}
204 ${uri} = BuiltIn.Set_Variable ${JOLOKIA_READ_URI}:Category=Shards,name=member-${member_index}-shard-${shard_name}-${shard_type},type=${type_class}
205 ${data_text} = TemplatedRequests.Get_As_Json_From_Uri uri=${uri} session=${session}
206 ${data_object} = RequestsLibrary.To_Json ${data_text}
207 ${value} = Collections.Get_From_Dictionary ${data_object} value
208 ${raft_state} = Collections.Get_From_Dictionary ${value} RaftState
209 [Return] ${raft_state}
211 Resolve_Shard_Type_Class
212 [Arguments] ${shard_type}
213 [Documentation] Simple lookup for class name corresponding to desired type.
214 BuiltIn.Run_Keyword_If '${shard_type}' == 'config' BuiltIn.Return_From_Keyword DistributedConfigDatastore
215 ... ELSE IF '${shard_type}' == 'operational' BuiltIn.Return_From_Keyword DistributedOperationalDatastore
216 BuiltIn.Fail Unrecognized shard type: ${shard_type}
218 ClusterManagement__Parse_Sync_Status
219 [Arguments] ${shard_manager_text}
220 [Documentation] Return sync status parsed out of given text. Called twice by Get_Sync_Status_Of_Member.
221 BuiltIn.Log ${shard_manager_text}
222 ${manager_object} = RequestsLibrary.To_Json ${shard_manager_text}
223 ${value_object} = Collections.Get_From_Dictionary dictionary=${manager_object} key=value
224 ${sync_status} = Collections.Get_From_Dictionary dictionary=${value_object} key=SyncStatus
225 [Return] ${sync_status}
227 ClusterManagement__Given_Or_Internal_Index_List
228 [Arguments] ${given_list}=${EMPTY}
229 [Documentation] Utility to allow \${EMPTY} as default argument value, as the internal list is computed at runtime.
230 ${given_length} = BuiltIn.Get_Length ${given_list}
231 ${return_list} = BuiltIn.Set_Variable_If ${given_length} > 0 ${given_list} ${ClusterManagement__member_index_list}
232 [Return] ${return_list}
234 ClusterManagement__Compute_Derived_Variables
235 [Arguments] ${int_of_members}
236 [Documentation] Construct index list, session list and IP mapping, publish them as suite variables.
237 @{member_index_list} = BuiltIn.Create_List
238 @{session_list} = BuiltIn.Create_List
239 &{index_to_ip_mapping} = BuiltIn.Create_Dictionary
240 : FOR ${index} IN RANGE 1 ${int_of_members+1}
241 \ ClusterManagement__Include_Member_Index ${index} ${member_index_list} ${session_list} ${index_to_ip_mapping}
242 BuiltIn.Set_Suite_Variable \${ClusterManagement__member_index_list} ${member_index_list}
243 BuiltIn.Set_Suite_Variable \${ClusterManagement__index_to_ip_mapping} ${index_to_ip_mapping}
244 BuiltIn.Set_Suite_Variable \${ClusterManagement__session_list} ${session_list}
246 ClusterManagement__Include_Member_Index
247 [Arguments] ${index} ${member_index_list} ${session_list} ${index_to_ip_mapping}
248 [Documentation] Add a corresponding item based on index into the last three arguments.
249 ... Create the Http session whose alias is added to list.
250 Collections.Append_To_List ${member_index_list} ${index}
251 ${member_ip} = BuiltIn.Set_Variable ${ODL_SYSTEM_${index}_IP}
252 # ${index} is int (not string) so "key=value" syntax does not work in the following line.
253 Collections.Set_To_Dictionary ${index_to_ip_mapping} ${index} ${member_ip}
254 # Http session, with ${AUTH}, without headers.
255 ${session_alias} = Resolve_Http_Session_For_Member member_index=${index}
256 RequestsLibrary.Create_Session ${session_alias} http://${member_ip}:${RESTCONFPORT} auth=${AUTH} max_retries=0
257 Collections.Append_To_List ${session_list} ${session_alias}