Vagrant is not able to download the docker image as the local CA is not carrying its certificate which was used to issue the HashiCorp server's certificate.
If you want to run Hyperledger Fabric and eventually deploy chaincode to develop a blockchain application, you can run docker-compose up with the following docker-compose.yml definition:
command: peer node start
The Vagrant-based development environment approach for getting the locally running Fabric is more oriented towards developers.
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