Move privkey config from node_X.toml to ENV variable

[serejke]

Contact Details

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Propose-a-new-feature

Now that node_X.toml files contain only one secret privkey (there used to be also mnemonic and cross_client.pk but you have removed them), it becomes reasonable to move privkey from the toml file to an ENV variable.

We run Axon nodes in EKS cluster and use CSI Driver to mount secrets from AWS Secrets Manager into the pod.

Alternatives you've considered

Describe alternatives you've considered:

Even more robust solution would be to support the remote AWS signer (#1136), but it is unfeasible right now because AWS KMS does not support BLS cryptography.

Anything else?

No response

[github-actions]

Hello @driftluo. Please develop this feature.