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update RethinkDB initial configuration docs

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fixes #524
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mirceanis
2017-01-18 16:29:23 +02:00
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parent 6f960ba2d7
commit 8efc90d7b2
1 changed files with 8 additions and 3 deletions
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doc/DEPLOYMENT.md
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@@ -107,11 +107,16 @@ If you need to expand your RethinkDB cluster beyond one server you may encounter
You will also have to:
1. Modify the `--cache-size` as you please. It limits the amount of memory RethinkDB uses and is given in megabytes, but is not an absolute limit! Real usage can be slightly higher.
2. Update the version number in `rethinkdb:2.3` for the latest release. We don't use `rethinkdb:latest` here because then you might occasionally have to manually rebuild your indexes after an update and not even realize it, bringing the whole system effectively down.
3. The `AUTHKEY` environment variable is only for convenience when linking. So, the first time you set things up, you will have to access http://DB_SERVER_IP:8080 after starting the unit and run the following command:
2. Update the version number in `rethinkdb:2.3` for the latest release. We don't use `rethinkdb:latest` here because then you might occasionally have to manually rebuild your indexes after an update and not even realize it, bringing the whole system effectively down.
3. The `AUTHKEY` environment variable is only for convenience when linking. So, the first time you set things up, you will have to access http://DB_SERVER_IP:8080 after starting the unit and run the following command:
```javascript
r.db('rethinkdb').table('cluster_config').get('auth').update({auth_key: 'newkey'})
r.db('rethinkdb').table('users').get('admin').update({password:'yourBrandNewKey'})
```
OR, you can initialize rethinkdb with an initial key before starting the unit:
```bash
docker run --rm -v /srv/rethinkdb:/data rethinkdb:2.3 rethinkdb --initial-password yourBrandNewKey
```
More information can be found [here](https://rethinkdb.com/docs/security/). You will then need to replace `YOUR_RETHINKDB_AUTH_KEY_HERE_IF_ANY` in the the rest of the units with the real authentication key.