If I want to make some changes in my Smart Contract , I have to delete the docker image of my running application. Which results in complete loss of data. How can I push the changes in my smart contract such that I don't have to delete the docker image of the current application ???????????
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I think you mean container, not image https://stackoverflow.com/questions/23735149/docker-image-vs-container – Mathias Jan 21 '18 at 15:05
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I mean image only . when I run my application for the first time a docker image is created which can checked by running this command in a terminal $ docker images It shows all the docker images among which there is an image of my application. – Harshit Jan 21 '18 at 18:32
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peer chaincode upgrade ...
peer chaincode upgrade --help
Full details in the docs.
https://hyperledger-fabric.readthedocs.io/en/release/chaincode4noah.html
It's almost identical to peer chaincode instantiate ...
jworthington
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You need to upgrade your current version of the chaincode into a new one which will contain required changes, the steps are as following:
Installing new chaincode with updated version on all peers involved
peer chaincode install -o localhost:7050 -n myCC -v 2.0 -p github.com/chaincode/myccUpgrade chaincode to newer version
peer chaincode upgrade -o localhost:7050 -n myCC -v 2.0 -C mychannel -c '{"Args":[]}'
Artem Barger
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