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84 lines
2.9 KiB
Markdown
84 lines
2.9 KiB
Markdown
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# Secrets encryption
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:::danger
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Secrets encryption is currently broken and therefore disabled by default. It will be fixed in an upcoming release.
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Check:
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- <https://github.com/woodpecker-ci/woodpecker/issues/1541> and
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- <https://github.com/woodpecker-ci/woodpecker/pull/2300>
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:::
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By default, Woodpecker does not encrypt secrets in its database. You can enable encryption
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using simple AES key or more advanced [Google TINK](https://developers.google.com/tink) encryption.
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## Common
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### Enabling secrets encryption
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To enable secrets encryption and encrypt all existing secrets in database set
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`WOODPECKER_ENCRYPTION_KEY`, `WOODPECKER_ENCRYPTION_KEY_FILE` or `WOODPECKER_ENCRYPTION_TINK_KEYSET_PATH` environment
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variable depending on encryption method of your choice.
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After encryption is enabled you will be unable to start Woodpecker server without providing valid encryption key!
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### Disabling encryption and decrypting all secrets
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To disable secrets encryption and decrypt database you need to start server with valid
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`WOODPECKER_ENCRYPTION_KEY` or `WOODPECKER_ENCRYPTION_TINK_KEYSET_FILE` environment variable set depending on
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enabled encryption method, and `WOODPECKER_ENCRYPTION_DISABLE` set to true.
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After secrets was decrypted server will proceed working in unencrypted mode. You will not need to use "disable encryption"
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variable or encryption keys to start server anymore.
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## AES
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Simple AES encryption.
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### Configuration
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You can manage encryption on server using these environment variables:
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- `WOODPECKER_ENCRYPTION_KEY` - encryption key
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- `WOODPECKER_ENCRYPTION_KEY_FILE` - file to read encryption key from
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- `WOODPECKER_ENCRYPTION_DISABLE` - disable encryption flag used to decrypt all data on server
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## TINK
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TINK uses AEAD encryption instead of simple AES and supports key rotation.
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### Configuration
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You can manage encryption on server using these two environment variables:
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- `WOODPECKER_ENCRYPTION_TINK_KEYSET_FILE` - keyset filepath
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- `WOODPECKER_ENCRYPTION_DISABLE` - disable encryption flag used to decrypt all data on server
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### Encryption keys
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You will need plaintext AEAD-compatible Google TINK keyset to encrypt your data.
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To generate it and then rotate keys if needed, install `tinkey`([installation guide](https://developers.google.com/tink/install-tinkey))
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Keyset contains one or more keys, used to encrypt or decrypt your data, and primary key ID, used to determine which key
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to use while encrypting new data.
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Keyset generation example:
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```bash
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tinkey create-keyset --key-template AES256_GCM --out-format json --out keyset.json
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```
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### Key rotation
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Use `tinkey` to rotate encryption keys in your existing keyset:
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```bash
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tinkey rotate-keyset --in keyset_v1.json --out keyset_v2.json --key-template AES256_GCM
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```
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Then you just need to replace server keyset file with the new one. At the moment server detects new encryption
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keyset it will re-encrypt all existing secrets with the new key, so you will be unable to start server with previous
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keyset anymore.
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