Core: Connector not starting, OAuth2Extension cannot resolve certificates

[DominikPinsel]

Bug Report

Describe the Bug

When starting the EDC the OAuth2Extension.getEncodedClientCertificate always throws an org.eclipse.dataspaceconnector.spi.EdcException: Public certificate not found exception.

Expected Behavior

• Connector starting and resolving certificates from vault

Observed Behavior

• Connector not starting

Steps to Reproduce

Steps to reproduce the behavior:

1. Start IDS Connector

Context Information

Add any other context about the problem here.

• Used version 0.0.1-20220818-SNAPSHOT

Detailed Description

• Extension is always using the NoopCertificateResolver

Possible Implementation

• Probably the DefaultCertificateResolver should be used instead

_{Dominik Pinsel [email protected], Mercedes-Benz Tech Innovation GmbH, legal info/Impressum}

[ndr-brt]

If you use a vault custom extension you need to explicitly register the VaultCertificateResolver.
For an example, look at the hashicorp-vault extension:
https://github.com/eclipse-dataspaceconnector/DataSpaceConnector/blob/main/extensions/common/vault/hashicorp-vault/src/main/java/org/eclipse/dataspaceconnector/core/security/hashicorpvault/HashicorpVaultExtension.java#L75

[DominikPinsel]

If you use a vault custom extension you need to explicitly register the VaultCertificateResolver.
For an example, look at the hashicorp-vault extension:
https://github.com/eclipse-dataspaceconnector/DataSpaceConnector/blob/main/extensions/common/vault/hashicorp-vault/src/main/java/org/eclipse/dataspaceconnector/core/security/hashicorpvault/HashicorpVaultExtension.java#L75

With our custom extension everything works fine. Our problem occurs with the Azure Vault extension from this repository, but I assume the HashiCorp vault extension from this repository has this problem, too.
But I just saw that you fixed this issue 7 days ago in PR #1842 -> will close this issue.

_{Dominik Pinsel [email protected], Mercedes-Benz Tech Innovation GmbH, legal info/Impressum}