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Created Wallet Server Snapshot Create/Deploy/Revert (markdown)

Alex Grin 2021-10-22 10:35:29 -04:00
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Wallet-Server-Snapshot-Create-Deploy-Revert.md Normal file

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**To make a new snapshot:**
1. turn the wallet server being cloned off with `docker-compose down`
2. copy the volume `sudo cp -r /var/lib/docker/volumes/${USER}_wallet_server/_data/ /home/${USER}/snapshot`
3. update the permissions `sudo chown -R ${USER}:${USER} snapshot`
**Deploying a volume snapshot:**
1. from wherever you have the `snapshot` directory, rsync it to the target server: `rsync -avP snapshot ${HOST_USER}@${HOST}:/home/${HOST_USER}/snapshot/` , HOST_USER would be `lbry` and HOST would be a server like `spv13.lbry.com`
2. ssh into the target server and run `ls snapshot` to verify it received in the right place, you should see `blocks` files, `claims.db`, `tx`, `utxo`, etc.
3. check the permissions on the existing volume with `sudo ls -lah /var/lib/docker/volumes/${USER}_wallet_server/` you should see the directory is owned by `root:root` and it contains `_data` , which is owned by `netdata:netdata`
4. update the permissions on the new snapshot `sudo chown -R netdata:netdata snapshot`
5. turn the wallet server off with `docker-compose down`
6. back up the existing volume instead of deleting it, `sudo mv /var/lib/docker/volumes/${USER}_wallet_server/_data volume_backup`
7. move the prepared snapshot into place `sudo mv snapshot /var/lib/docker/volumes/lbry_wallet_server/_data`
8. double check the permissions on the resulting voiume: `sudo ls -lah /var/lib/docker/volumes/${USER}_wallet_server/` you should see `_data` owned by `netdata:netdata` like before
9. start the wallet server `docker-compose up -d`
10. watch the log tail until it starts successfully, indicated by ips showing in the logs as users connect `docker-compose logs -f --tail 100`
**Restoring a backup volume**
1. set the permissions on the backup `sudo chown -R netdata:netdata volume_backup`
2. turn the wallet server off with `docker-compose down`
3. back up the existing volume instead of deleting it, `sudo mv /var/lib/docker/volumes/${USER}_wallet_server/_data volume_backup2`
4. move the prepared snapshot into place `sudo mv volume_backup /var/lib/docker/volumes/${USER}_wallet_server/_data`
5. double check the permissions on the resulting voiume: `sudo ls -lah /var/lib/docker/volumes/${USER}_wallet_server/` you should see `_data` owned by `netdata:netdata` like before
6. start the wallet server `docker-compose up -d`
7. watch the log tail until it starts successfully, indicated by ips showing in the logs as users connect `docker-compose logs -f --tail 100`