Replication backend fails to initialize when optional snap_cpg_map parameter is not present in hpe.conf file

[leenaj0hn]

1. Added a replication backend in hpe.conf file without the snap_cpg_map label
   [ActivePassive]
   hpe3par_username=3paradm
   hpe3par_password=3pardata
   hpe3par_cpg=FC_r6
   hpedockerplugin_driver=hpedockerplugin.hpe.hpe_3par_fc.HPE3PARFCDriver
   san_ip=15.213.71.156
   san_login=3paradm
   san_password=3pardata
   hpe3par_api_url=https://vp2-158.in.rdlabs.hpecorp.net/api/v1
   replication_device = backend_id:S2928,
   replication_mode:synchronous,
   cpg_map:FC_r6:SSD_r6,
   hpe3par_api_url:https://s2928.in.rdlabs.hpecorp.net/api/v1,
   hpe3par_username:vrops,
   hpe3par_password:vrops123,
   san_ip:15.213.68.207,
   san_login:vrops,
   san_password:vrops123

2. The backends fails on restarting the plugin with the below error:

2019-08-07 05:47:59,672 [INFO] hpedockerplugin.backend_orchestrator [140355703184264] MainThread Backends INITIALIZED => dict_keys(['ActivePassive', 'DEFAULT', 'merlin'])
2019-08-07 05:47:59,673 [INFO] hpedockerplugin.volume_manager [140355547667176] Thread-1 Getting source backend configuration...
2019-08-07 05:47:59,673 [INFO] hpedockerplugin.volume_manager [140355546606312] Thread-2 Overriding the value of multipath flags to True
2019-08-07 05:47:59,676 [INFO] hpedockerplugin.volume_manager [140355545545448] Thread-3 Overriding the value of multipath flags to True
2019-08-07 05:47:59,679 [INFO] hpedockerplugin.volume_manager [140355547667176] Thread-1 Got source backend configuration!
2019-08-07 05:47:59,680 [INFO] hpedockerplugin.volume_manager [140355546606312] Thread-2 Getting source backend configuration...
2019-08-07 05:47:59,680 [INFO] hpedockerplugin.volume_manager [140355545545448] Thread-3 Getting source backend configuration...
2019-08-07 05:47:59,682 [INFO] hpedockerplugin.hpe.array_connection_params [140355547667176] Thread-1 ACP Key: snap_cpg_map
2019-08-07 05:47:59,684 [INFO] hpedockerplugin.volume_manager [140355546606312] Thread-2 Got source backend configuration!
2019-08-07 05:47:59,687 [INFO] hpedockerplugin.volume_manager [140355545545448] Thread-3 Got source backend configuration!
2019-08-07 05:47:59,688 [ERROR] hpedockerplugin.backend_async_initializer [140355547667176] Thread-1 CHILD-THREAD: INITIALIZING backend: ActivePassive FAILED Error:'NoneType' object has no attribute 'split'

[bhagyashree-sarawate]

Need changes to handle the specified error

[bhagyashree-sarawate]

Fixed and merged

[amitk1977]

Leena to verify and close

[sonawane-shashikant]

This bug is verified as FIXED.
Below is the output for reference.

[root@master-node ~]# cat /etc/hpedockerplugin/hpe.conf

[DEFAULT]
host_etcd_ip_address=10.50.9.10
hpe3par_username=3paradm
hpe3par_password=3pardata
hpe3par_cpg=SHASHI_SRC_CPG
hpedockerplugin_driver=hpedockerplugin.hpe.hpe_3par_iscsi.HPE3PARISCSIDriver
host_etcd_port_number=23790
ssh_hosts_key_file=/root/.ssh/known_hosts
logging=DEBUG
hpe3par_snapcpg=SHASHI_SNAP_CPG
san_ip=10.50.3.7
san_login=3paradm
san_password=3pardata
hpe3par_api_url=https://10.50.3.7:8080/api/v1
hpe3par_iscsi_ips=10.50.17.220,10.50.17.221,10.50.17.222,10.50.17.223
replication_device = CSIM-EOS12_1611702,
replication_mode:synchronous,
cpg_map:SHASHI_SRC_CPG:SHASHI_DEST_CPG,
hpe3par_api_url:https://10.50.3.22:8080/api/v1,
hpe3par_username:3paradm,
hpe3par_password:3pardata,
san_ip:10.50.3.22,
san_login:3paradm,
hpe3par_iscsi_ips:10.50.1.25,
san_password:3pardata
[root@master-node ~]#

[root@master-node ~]# docker-compose up -d
Pulling hpedockerplugin (hpestorage/legacyvolumeplugin:3.3)...
3.3: Pulling from hpestorage/legacyvolumeplugin
c87736221ed0: Pull complete
674ad566676a: Pull complete
bd21eb3ebfac: Pull complete
2882ae55f920: Pull complete
e7824c20e2b4: Pull complete
4f4d0faba616: Pull complete
39dc489c35e7: Pull complete
6248ff5e65f4: Pull complete
141f504bc18e: Pull complete
81c6dd89716a: Pull complete
78ab44f9a50d: Pull complete
47b7f294ae86: Pull complete
ab9b6884d3ac: Pull complete
6976eae40ece: Pull complete
4c628abc813d: Pull complete
b747444523fb: Pull complete
1d5fbf29ad1d: Pull complete
ba351dc05725: Pull complete
cb398810f092: Pull complete
Creating plugin_container ... done
[root@master-node ~]# docker ps | grep plugin
5ee0625a3523 hpestorage/legacyvolumeplugin:3.3 "/bin/sh -c ./plug..." 9 seconds ago Up 9 seconds plugin_container
[root@master-node ~]# vi /etc/hpedockerplugin/hpe.conf
[root@master-node ~]# docker volume create -d hpe -o help=backends
Error response from daemon: create 58d39a03bdfbef6170f526a86b9e80180b275be6bdff136b090f1006b3edad41:

NAME STATUS

DEFAULT OK
[root@master-node ~]#

@leenaj0hn Please close this bug..