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Backing up contrail configuration in json format

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Suresh-vin edited this page May 23, 2018 · 4 revisions

Backup

  • Simple Backup:

     python db_json_exim.py --export-to db-dump.json

    db_json_exim.py is found at /usr/lib/python2.7/dist-packages/cfgm_common

  • To see prettified version of dump:

    cat db-dump.json | python -m json.tool | less

  • To omit a keyspace in the dump (for e.g. to share with Juniper)

     python db_json_exim.py --export-to db-dump.json --omit-keyspace dm_keyspace

Restore

  • Steps for restore
    • Stop supervisor-config on all controllers or ensure it is already stopped
    • Stop cassandra on all controllers (config-db) or ensure it is already stopped
    • Stop zookeeper on all controllers or ensure it is already stopped
    • Stop kafka on all controllers (maybe in analytics controllers)
    • Stop contrail-hamon on all controllers (if it is running on controllers)
    • Backup zookeeper data directory on all controllers
    • Backup cassandra data directory on all controllers
    • Wipe out zookeeper data directory contents on all controllers
    • Wipe out cassandra data directory contents on all controllers
    • Start zookeeper on all controllers
    • Start cassandra on all controllers
    • Run python db_json_exim.py --import-from db-dump.json on any one controller
    • Start supervisor-config on all controllers
    • Start kafka on all controllers (maybe in analytics controllers)
    • Start contrail-hamon on all controllers (if previously stopped)

Example

  • Testbed has 3 controllers with config-db with IPs 10.87.65.30 (5b5s42), 10.87.65.31(5b5s43), 10.87.65.32(5b5s44)

  • Backup

    root@5b5s42:~# python db_json_exim.py --export-to db-dump.json
root@5b5s42:~# cat db-dump.json | python -m json.tool | less
 {
     "cassandra": {
         "config_db_uuid": {
        "obj_fq_name_table": {
                 "access_control_list": {
                 
  <snip>

  • Restore

    • Stop supervisor-config on all controllers

      root@5b5s42:~# service supervisor-config stop
supervisor-config stop/waiting
root@5b5s42:~#
root@5b5s43:~# service supervisor-config stop
supervisor-config stop/waiting
root@5b5s43:~#
root@5b5s44:~# service supervisor-config stop
supervisor-config stop/waiting
root@5b5s44:~#

    • Stop cassandra on all controllers

      root@5b5s42:~# service cassandra stop
root@5b5s42:~#
root@5b5s43:~# service cassandra stop
root@5b5s43:~#
root@5b5s44:~# service cassandra stop
root@5b5s44:~#

    • Stop zookeeper on all controllers

      root@5b5s42:~# service zookeeper stop
zookeeper stop/waiting
root@5b5s42:~#
root@5b5s43:~# service zookeeper stop
zookeeper stop/waiting
root@5b5s43:~#
root@5b5s44:~# service zookeeper stop
zookeeper stop/waiting
root@5b5s44:~#

    • Stop kafka on all controllers (if it is running)

      root@5b5s42:~# service kafka stop
kafka: stopped
root@5b5s42:~#
root@5b5s43:~# service kafka stop
kafka: stopped
root@5b5s43:~#
root@5b5s44:~# service kafka stop
kafka: stopped
root@5b5s44:~#

    • Stop contrail-hamon on all controllers (if it is running on controllers)

      root@5b5s42:~# service contrail-hamon stop
contrail-hamon stop/waiting
root@5b5s43:~# service contrail-hamon stop
contrail-hamon stop/waiting
root@5b5s44:~# service contrail-hamon stop
contrail-hamon stop/waiting

    • Stop all controller services if they are sharing Cassandra

    • Backup zookeeper data directory on all controllers

      root@5b5s42:~# cd /var/lib/zookeeper/
root@5b5s42:/var/lib/zookeeper# cp -R version-2/ version-2-save
root@5b5s42:/var/lib/zookeeper#
root@5b5s43:~# cd /var/lib/zookeeper/
root@5b5s43:/var/lib/zookeeper# cp -R version-2/ version-2-save
root@5b5s43:/var/lib/zookeeper#
root@5b5s44:~# cd /var/lib/zookeeper/
root@5b5s44:/var/lib/zookeeper# cp -R version-2/ version-2-save
root@5b5s44:/var/lib/zookeeper#

    • Backup cassandra data directory on all controllers

      root@5b5s42:~# cd /var/lib/
root@5b5s42:/var/lib# cp -R cassandra/data/* cassandra-save/data
root@5b5s42:/var/lib# cp -R cassandra/saved_caches/* cassandra-save/saved_caches
root@5b5s42:/var/lib# cp -R cassandra/commitlog/* cassandra-save/commitlog
root@5b5s43:~# cd /var/lib/
root@5b5s43:/var/lib# cp -R cassandra/data/* cassandra-save/data
root@5b5s43:/var/lib# cp -R cassandra/saved_caches/* cassandra-save/saved_caches
root@5b5s43:/var/lib# cp -R cassandra/commitlog/* cassandra-save/commitlog
root@5b5s44:~# cd /var/lib/
root@5b5s44:/var/lib# cp -R cassandra/data/* cassandra-save/data
root@5b5s44:/var/lib# cp -R cassandra/saved_caches/* cassandra-save/saved_caches
root@5b5s44:/var/lib# cp -R cassandra/commitlog/* cassandra-save/commitlog

    • Wipe out zookeeper data directory contents on all controllers

      root@5b5s42:~# rm -rf /var/lib/zookeeper/version-2/*
root@5b5s42:~#
root@5b5s43:~# rm -rf /var/lib/zookeeper/version-2/*
root@5b5s43:~#
root@5b5s44:~# rm -rf /var/lib/zookeeper/version-2/*
root@5b5s44:~#

    • Wipe out cassandra data directory contents on all controllers

      root@5b5s42:~# rm -rf /var/lib/cassandra/data/*
root@5b5s42:~# rm -rf /var/lib/cassandra/saved_caches/*
root@5b5s42:~# rm -rf /var/lib/cassandra/commitlog/*
root@5b5s43:~# rm -rf /var/lib/cassandra/data/*
root@5b5s43:~# rm -rf /var/lib/cassandra/saved_caches/*
root@5b5s43:~# rm -rf /var/lib/cassandra/commitlog/*
root@5b5s44:~# rm -rf /var/lib/cassandra/data/*
root@5b5s44:~# rm -rf /var/lib/cassandra/saved_caches/*
root@5b5s44:~# rm -rf /var/lib/cassandra/commitlog/*

    • Start zookeeper on all controllers

      root@5b5s42:~# service zookeeper start
zookeeper start/running, process 14180
root@5b5s42:~#
root@5b5s43:~# service zookeeper start
zookeeper start/running, process 11635
root@5b5s43:~#
root@5b5s44:~# service zookeeper start
zookeeper start/running, process 28040
root@5b5s44:~#

    • Start cassandra on all controllers

       root@5b5s42:~# service cassandra start
 root@5b5s42:~#
 root@5b5s43:~# service cassandra start
 root@5b5s43:~#
 root@5b5s44:~# service cassandra start
 root@5b5s44:~#

    • Run python db_json_exim.py --import-from db-dump.json on any one controller

       root@5b5s42:~# python db_json_exim.py --import-from db-dump.json
 root@5b5s42:~#

    • Start supervisor-config on all controllers

       root@5b5s42:~# service supervisor-config start
 supervisor-config start/running, process 19286
 root@5b5s42:~#
 root@5b5s43:~# service supervisor-config start
 supervisor-config start/running, process 28937
 root@5b5s43:~#
 root@5b5s44:~# service supervisor-config start
 supervisor-config start/running, process 21242
 root@5b5s44:~#

    • Start all contrail services, if they were stopped previously

    • Start kafka on all controllers (maybe in analytics controllers)

      root@5b5s42:~# service kafka start
kafka: started
root@5b5s42:~#
root@5b5s43:~# service kafka start
kafka: started
root@5b5s43:~#
root@5b5s44:~# service kafka start
kafka: started
root@5b5s44:~#

    • Start contrail-hamon on all controllers (if previously stopped)

      root@5b5s42:~# service contrail-hamon start
contrail-hamon start/running, process 1379
root@5b5s42:~#
root@5b5s43:~# service contrail-hamon start
contrail-hamon start/running, process 1230
root@5b5s43:~#
root@5b5s44:~# service contrail-hamon start
contrail-hamon start/running, process 26843
root@5b5s44:~#
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