Multi-Ledger Read Support

[esune]

As a tenant in Traction, I want to be able to at least have read access to multiple ledgers.
A "main" ledger should be marked for write operations - this would match the ledger to which the endorser is conencted to.

As a Tenant Holder, I want to receive credentials issued from both Sovrin and CANdy, so I can participate in multiple ledgers

As a Tenant Verifier, I want to perform a cryptographic check (and check revocation) on the results of a presentation request that contains a content for schemas on both Sovrin and CANdy, so I can verify it is correct

NOTE: As a Tenant Issuer, I want to issue a credentials on only ONE ledger

[esune]

@usingtechnology here's an example of how to implement multi-ledger support in ACA-Py:

• ledgers.yaml defines all the ledgers that the agent has access to. It is mounted to the agent's filesystem (volume in Docker, configmap in OpenShift).
• The ACAPY_GENESIS_TRANSACTIONS_LIST environment variable is used to set the path to the ledgers.yaml file: this replaces the ACAPY_GENESIS_URL environment variable. Example here.

You will notice that one ledger is set to be the writeable one: I think this will have to match the ledger that the endorser service used by the tenants is set to write on.

[usingtechnology]

thanks @esune that should get me started. much appreciated.

[usingtechnology]

Added issue 2168 and issue 2167. do not multiledger support until resolved.

[shaangill025]

Might be linked to openwallet-foundation/acapy#2002

[shaangill025]

Duplicated, issue# 572 already created.