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Reworded "Ensure data protection keys are persisted" a bit to include other storage mechanisms as well #923

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Merged
maartenba merged 1 commit into from
Oct 16, 2025
Merged

Reworded "Ensure data protection keys are persisted" a bit to include other storage mechanisms as well #923

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15 changes: 11 additions & 4 deletions src/content/docs/identityserver/deployment/index.md
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Expand Up @@ -121,10 +121,17 @@ builder.Services.AddDataProtection()
.SetApplicationName("IdentityServer");
```

:::danger[Ensure Redis data is persisted]
If you are using Redis to store data protection keys using `PersistKeysToStackExchangeRedis`, ensure that your Redis
service is configured to persist data to a database backup or append-only file. Otherwise, when your Redis instance reboots,
you will lose all data protection keys, causing all data protected with those keys to no longer be readable.
:::danger[Ensure data protection keys are persisted]
Always make sure data protection is configured to persist data protection keys to storage, using `.PersistKeys...()`
for your storage mechanism.

In addition, make sure the storage mechanism itself is durable. For example, if you are using the default file system
based key store, make sure that the configured path is not stored on ephemeral storage. If you are using Redis to store
data protection keys using `PersistKeysToStackExchangeRedis`, ensure that your Redis service is configured to persist
data to a database backup or append-only file. Otherwise, when your Redis instance reboots, you will lose all data
protection keys.

If you lose your data protection keys, all data protected with those keys to no longer be readable.
:::

### Data Protection Keys and IdentityServer's Signing Keys
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