forked from TrueCloudLab/certificates
112 lines
3.3 KiB
Markdown
112 lines
3.3 KiB
Markdown
# Step Certificates Database
|
|
|
|
`step certificates` uses a simple key-value interface over popular database
|
|
implementations to store persistent certificate management meta-data.
|
|
|
|
Our recommended default database implementation is
|
|
[nosql-Badger](https://github.com/smallstep/nosql/badger) - a NoSQL interface
|
|
over the popular [Badger](https://github.com/dgraph-io/badger) database.
|
|
|
|
## What will the database store?
|
|
|
|
As a first pass, the database layer will store every certificate (along with
|
|
metadata surrounding the provisioning of the certificate) and revocation data
|
|
that will be used to enforce passive revocation.
|
|
|
|
## Implementations
|
|
|
|
Current implementations include Badger (default), BoltDB, and MysQL.
|
|
|
|
- [ ] Memory
|
|
- [x] [BoltDB](https://github.com/etcd-io/bbolt) -- etcd fork.
|
|
- [x] [Badger](https://github.com/dgraph-io/badger)
|
|
- [x] [MariaDB/MySQL](https://github.com/go-sql-driver/mysql)
|
|
- [ ] PostgreSQL
|
|
- [ ] Cassandra
|
|
- [ ] ...
|
|
|
|
Let us know which integration you would like to see next by opening an issue or PR.
|
|
|
|
## Configuration
|
|
|
|
Configuring `step certificates` to use a database is as simple as adding a
|
|
top-level `db` stanza to your `step-ca.config` (see getting started doc for
|
|
more info). Below are a few examples for supported databases:
|
|
|
|
### Badger
|
|
|
|
```
|
|
{
|
|
...
|
|
"crt": ".step/certs/intermediate_ca.crt",
|
|
"key": ".step/secrets/intermediate_ca_key",
|
|
"db": {
|
|
"type": "badger",
|
|
"dataSource": "./.step/db",
|
|
"valueDir": "./.step/valuedb"
|
|
"badgerValueLogLoadingMode": "MemoryMap"
|
|
},
|
|
...
|
|
},
|
|
```
|
|
|
|
#### Options
|
|
|
|
* `type`
|
|
* `badger` - currently refers to Badger V1. However, as Badger V1 is deprecated,
|
|
this will refer to Badger V2 starting with a the next major version release.
|
|
* `badgerV1` - explicitly select Badger V1.
|
|
* `badgerV2` - explicitly select Badger V2. Anyone looking to use Badger V2
|
|
will need to set it explicitly until it becomes the default.
|
|
* `dataSource` - path, database directory.
|
|
* `valueDir` [optional] - path, value directory, only if different from `dataSource`.
|
|
* `badgerValueLogLoadingMode` [optional] - can be set to `FileIO` (instead of the default
|
|
`MemoryMap`) to avoid memory-mapping log files. This can be
|
|
useful in environments with low RAM.
|
|
* `MemoryMap` - default.
|
|
* `FileIO` - This can be useful in environments with low RAM.
|
|
|
|
### BoltDB
|
|
|
|
```
|
|
{
|
|
...
|
|
"crt": ".step/certs/intermediate_ca.crt",
|
|
"key": ".step/secrets/intermediate_ca_key",
|
|
"db": {
|
|
"type": "bbolt",
|
|
"dataSource": "./stepdb"
|
|
},
|
|
...
|
|
},
|
|
```
|
|
|
|
### MySQL
|
|
|
|
```
|
|
{
|
|
...
|
|
"crt": ".step/certs/intermediate_ca.crt",
|
|
"key": ".step/secrets/intermediate_ca_key",
|
|
"db": {
|
|
"type": "mysql",
|
|
"dataSource": "user:password@tcp(127.0.0.1:3306)/",
|
|
"database": "myDatabaseName"
|
|
},
|
|
...
|
|
},
|
|
```
|
|
|
|
## Schema
|
|
|
|
As the interface is a key-value store, the schema is very simple. We support
|
|
`tables`, `keys`, and `values`. An entry in the database is a `[]byte value`
|
|
that is indexed by `[]byte table` and `[]byte key`.
|
|
|
|
## Data Backup
|
|
|
|
Backing up your data is important, and it's good hygiene. We chose
|
|
[Badger](https://github.com/dgraph-io/badger) as our default file based data
|
|
storage backend because it has mature tooling for running common database
|
|
tasks. See the [documentation](https://github.com/dgraph-io/badger#database-backup)
|
|
for a guide on backing up your data.
|