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Improve the docs with @datenbrei

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Robert Schäfer 2019-04-23 17:21:45 +02:00
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deployment/backup.md
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@ -39,7 +39,12 @@ Add the following to `spec.template.spec.containers`:
``` ```
and write the file which will update the deployment. and write the file which will update the deployment.
Then perform your tasks! The command `tail -f /dev/null` is the equivalent of *sleep forever*. It is a
hack to keep the container busy and to prevent its shutdown. It will also
override the default `neo4j` command and the kubernetes pod will not start the
database.
Now perform your tasks!
When you're done, edit the deployment again and remove the `command`. Write the When you're done, edit the deployment again and remove the `command`. Write the
file and trigger an update of the deployment. file and trigger an update of the deployment.
@ -49,26 +54,30 @@ file and trigger an update of the deployment.
First stop your Neo4J database, see above. Then: First stop your Neo4J database, see above. Then:
```sh ```sh
kubectl --namespace=human-connection get pods kubectl --namespace=human-connection get pods
# copy the ID of the pod running Neo4J # Copy the ID of the pod running Neo4J.
kubectl --namespace=human-connection exec -it <POD-ID> bash kubectl --namespace=human-connection exec -it <POD-ID> bash
# once you're in the pod # Once you're in the pod, dump the db to a file e.g. `/root/neo4j-backup`.
neo4j-admin dump --to=/root/neo4j-backup neo4j-admin dump --to=/root/neo4j-backup
exit exit
# download the file # Download the file from the pod to your computer.
kubectl cp human-connection/<POD-ID>:/root/neo4j-backup ./neo4j-backup kubectl cp human-connection/<POD-ID>:/root/neo4j-backup ./neo4j-backup
``` ```
Restart your Neo4J database. Revert your changes to deployment `nitro-neo4j` which will restart the database.
## Restore a Backup in Kubernetes ## Restore a Backup in Kubernetes
First stop your Neo4J database. Then: First stop your Neo4J database. Then:
```sh ```sh
kubectl --namespace=human-connection get pods kubectl --namespace=human-connection get pods
# copy the ID of the pod running Neo4J # Copy the ID of the pod running Neo4J.
# Then upload your local backup to the pod. Note that once the pod gets deleted
# e.g. if you change the deployment, the backup file is gone with it.
kubectl cp ./neo4j-backup human-connection/<POD-ID>:/root/ kubectl cp ./neo4j-backup human-connection/<POD-ID>:/root/
kubectl --namespace=human-connection exec -it <POD-ID> bash kubectl --namespace=human-connection exec -it <POD-ID> bash
# once you're in the pod # Once you're in the pod restore the backup and overwrite the default database
# called `graph.db` with `--force`.
# This will delete all existing data in database `graph.db`!
neo4j-admin load --from=/root/neo4j-backup --force neo4j-admin load --from=/root/neo4j-backup --force
exit exit
``` ```
Restart your Neo4J database. Revert your changes to deployment `nitro-neo4j` which will restart the database.