Hyperledger Composer CLI Ping to a Business Networ

Question

Im trying to learn Hyperledger Composer but seems to be a relatively new technology, i mean there are few tutorials and few solutions to a lot of questions, tutorial does not mention possible error case when following the commands and which means there are is also no solution for those errors.

I have joined the composer channel in their community chat, looks like its running in Discord or something, and asked the same question without a response, i have a better experience here in SO.

This is the problem: I have deployed my business network, installed it, started it, created my network admin card and imported it, then to test if everything is ok i have to command composer network ping --card NAME-OF-MY-ADMIN-CARD

And this error comes:

juan@JuanDeDios:~/proyectos/inovacion/a3-poliza-microservice$ composer network ping --card admin@a3-policy-microservice
Error: transaction returned with failure: AccessException: Participant 'org.hyperledger.composer.system.NetworkAdmin#admin' does not have 'READ' access to resource 'org.hyperledger.composer.system.Network#a3-policy-microservice@0.0.1'
Command failed

I think that it has to do something with the permission.acl file, and gave permission to everyone to everything so there would not be any restrictions to anyone, and tryied again, but failed.

So i thought i had to uninstall my business network and create it again, i deleted my .bna and my network.card files also so everything would be created again, but the same error result.

My other attempt was to update the business network, but didn't work, the same error happened and I'm sure i didn't miss any step from the tutorial. I do also followed the playground tutorial. What i have not done its to create another app with the Yeoman but i will do if i don't find a solution to this problem which would not require me to create another app.

This were my steps: 1-. Created my app with Yeoman

yo hyperledger-composer:businessnetwork

2-. Selected Apache-2.0 for my license 3-. Created a3-policy-microservice as the name of the business network 4-. Created org.microservice.policy (Yeah i switched names but Im totally aware) 5-. Generated my app with a template selecting the NO option

6-. Created my assets, participants and transactions 7-. Changed my permission rules to mine 8-. I generated the .bna file

composer archive create -t dir -n .

9-. Then installed my bna file

composer network install --card PeerAdmin@hlfv1 --archiveFile [e-mail]

10-. Then started my network and created my networkadmin card

composer network start --networkName a3-policy-network --networkVersion 0.0.1 --networkAdmin admin --networkAdminEnrollSecret adminpw --card PeerAdmin@hlfv1 --file networkadmin.card

11-. Imported my card

composer card import --file networkadmin.card

12-. Tried to ping my network

composer network ping --card admin@a3-poliza-microservice

And the error happens

Later i tried to create everything again shutting down my fabric and started it again and creating the network from the first step.

My other attempt was to change the permissions and upgrade my bna network, but it failed too. Im running out of options

Hope this description its not too long to ignore it. Thanks in advance

Answer 1

thanks for the question!

First possibility is that your network name is a3-policy-network but you're pinging a network called a3-poliza-microservice - once you do get the correct ACLs in place (currently, that's the error you're trying to resolve).

The procedure for upgrade would normally be the procedure below:

After your step 12 (where you can't ping the business network due to restrictive ACL conditions, assuming you are using the right network name) you would have:

13. Make the changes to to include your System ACLs this time eg.

/** * Sample access control list. */

rule SystemACL {
description: "System ACL to permit all access"
participant: "org.hyperledger.composer.system.Participant"
operation: ALL
resource: "org.hyperledger.composer.system.**"
action: ALLOW
}

rule NetworkAdminUser {
description: "Grant business network administrators full access to user resources"
participant: "org.hyperledger.composer.system.NetworkAdmin"
operation: ALL
resource: "**"
action: ALLOW
}

rule NetworkAdminSystem {
description: "Grant business network administrators full access to system resources"
participant: "org.hyperledger.composer.system.NetworkAdmin"
operation: ALL
resource: "org.hyperledger.composer.system.**"
action: ALLOW
}

14. Update the "version" field in your existing package.json in your Business Network project directory (ie need to change it next increment - eg. update the version property from 0.0.1 to 0.0.2.)

15. From the same directory, run the following command:

    composer archive create --sourceType dir --sourceName . -a [e-mail]
    

16. Now install the new business network code firstly:

    composer network install --card PeerAdmin@hlfv1 --archiveFile [e-mail]
    

17. Then perform the requisite upgrade step (single '-' for short form of the parameter):

    composer network upgrade -c PeerAdmin@hlfv1 -n a3-policy-network -V 0.0.2
    

18. After a few seconds, ping the network again to see ACL changes are now in effect:

    composer network ping -c a3-policy-network