Configuring OpenEBS Jiva - Containerised storage for containers for stateful applications

1. Chennai Docker Meetup
June ’17
@rahulkrishnanra
Containerized Storage for Containers

2. ? ?
OpenEBS Jiva
Containerized,
Open source block storage
Persistent Storage for
app
app
app

3. iSCSI
RPC
RPC
Jiva BackEnd Container
Jiva FrontEnd
Node
Node
Node
Jiva BackEnd Container
bitbucket
UseCase of OpenEBS Jiva

4. How to get Jiva Image ?
Use “docker search openebs/jiva”
$ docker search openebs/jiva
NAME DESCRIPTION STARS
openebs/jiva OpenEBS is purpose built storage for conta... 3
openebs/jiva-ci jiva images generated by Travis CI 0

5. Pull the jiva Image ?
$ docker pull openebs/jiva
Using default tag: latest
latest: Pulling from openebs/jiva
Digest:
sha256:71c59687b59e6dc7b454817c94fd4a9069e01f7b1780c7257931edacd7dff2c
Status: Image is up to date for openebs/jiva:latest

6. Jiva Front End Container
$docker run -d --network="host" -P --expose 3260 --expose 9501
openebs/jiva launch controller
--frontend gotgt --frontendIP 172.31.28.114 vol1 10G

7. Jiva Backend Container Creation
$ docker run -d --network="host" -P --expose 9502-9504
--expose 9700-9800 -v /mnt/store1:/store1
openebs/jiva launch replica --frontendIP 172.31.28.114
--listen 172.31.45.197:9502 --size 10G /store1
$ mkdir /mnt/store1

8. 3260 - iscsi target listener at the frontend
9501 - frontend is listening for management commands.
9502 - backends are listening for management commands.
9503 - backends are listening for a connection from frontend for data transfer.
9504 - backends are listening for data sync initiation with other backends when
the backend comes up.
9700-9800 - sync threads while syncing data
Ports used by Jiva frontend and backend

9. curl http://<frontend IP>:9501/v1/replicas
Check the health of jiva
Monitor data is synced in all backend ?
curl http://<Replica IP>:9502/v1/stats

10. iSCSI Initiator Install
$sudo apt install open-iscsi
$iscsiadm -m discovery -t st -p 192.168.0.10
Check for the target
$iscsiadm -m node -T
"iqn.2016-09.com.openebs.jiva:vol"
-p "172.31.28.114:3260" --login
Login to the iSCSI target
iSCSI Initiator Setp

11. Attach volume to the Bitbucket container
$docker run -d -v /bitbucket:/var/atlassian/application-data/bitbucket
-p 7990:7990 -p 7999:7999
atlassian/bitbucket-server

12. slack.openebs.io