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hltraining

Purpose

  1. Understand principles
  2. Setup basic environement (2 servers : 2 endorsers, 2 ordering, 1 ca).
  3. Deploy basic application
  4. Stress test
  5. Hacking

Documentation

First of all, you need a Linux Fundation account (LFID)

General

http://hyperledger-fabric.readthedocs.io/en/latest/getting_started.html

Community

Chat : https://chat.hyperledger.org

Jira : https://jira.hyperledger.org

Gerit : https://gerrit.hyperledger.org

Installation - provisioning or manual

Simple install with Provisioning

Read provisioning.MD (no yet finished, prefer manual install)

Manual install (getting started)

Setup tested on Ubuntu 16.04 64bits, as root, on a test server. Copy paste is supposed to work Root user has been chosen to fix permission issues, to quicly try Fabric

Install prerequisites

Note: GOROOT is for compiler/tools that comes from go installation. GOPATH is for your own go projects / 3rd party libraries (downloaded with "go get").

#sudo su -
apt-get install git docker.io python-pip curl docker-compose curl wget
cd /tmp
wget https://storage.googleapis.com/golang/go1.7.5.linux-amd64.tar.gz
tar -zxvf go1.7.5.linux-amd64.tar.gz
mv go /opt
echo "export GOROOT=/opt/go" >> ~/.bashrc
echo "export GOPATH=$GOROOT/bin" >> ~/.bashrc
echo "export PATH=$PATH:$GOROOT/bin:$GOPATH/bin" >> ~/.bashrc
source ~/.bashrc

systemctl enable docker.service
service docker start
reboot

#sudo su -
mkdir fabric-sample
cd fabric-sample
curl -L https://nexus.hyperledger.org/content/repositories/snapshots/sandbox/vex-yul-hyp-jenkins-2/fabric-binaries/release.tar.gz -o release.tar.gz 2> /dev/null;  tar -xvf release.tar.gz
cd release/linux-amd64/install
./get-docker-images.sh
Generate certs, genesis and channel tx artifact

cryptogen - generates the x509 certificates used to identify and authenticate the various components in the network.

configtxgen - generates the requisite configuration artifacts for orderer bootstrap and channel creation.

os_arch=$(echo "$(uname -s)-amd64" | awk '{print tolower($0)}')
cd ~/fabric-sample/release/samples/e2e

Generate certs with cryptogen command(new folder wil be created fabric-sample/release/samples/e2e/crypto-config). Then create the ordering service genesis block and a channel configuration artifact with configtxgen command, from the previously generated certs:

~/fabric-sample/release/$os_arch/bin/cryptogen generate --config=./crypto-config.yaml
export FABRIC_CFG_PATH=$PWD
~/fabric-sample/release/linux-amd64/bin/configtxgen -profile TwoOrgs -outputBlock orderer.block

Ordered genesis block is created: /fabric-sample/release/samples/e2e/ordered.block

Create the channel.tx artifact which will be used to create channels in the future. Here the name of the channel is 'mychannel'. Note: don't put underscore _ in the name of your channel.

~/fabric-sample/release/linux-amd64/bin/configtxgen -profile TwoOrgs -outputCreateChannelTx channel.tx -channelID mychannel

Comment this line in ~/fabric-sample/release/samples/e2e/docker-compose-no-tls.yaml to go through the commands manually with vim or nano. Notice that it is the no-tls docker-compose (TODO: automate with sed later):

# command: /bin/bash -c './scripts/script.sh ${CHANNEL_NAME}; '

Then start the network

export ARCH_TAG=$(uname -m)
CHANNEL_NAME=mychannel docker-compose -f docker-compose-no-tls.yaml up

In another shell:

# sudo su -
docker exec -it cli bash

Into the cli container, generate the genesis block

CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/ordererOrganizations/example.com/orderers/orderer.example.com CORE_PEER_LOCALMSPID="OrdererMSP" peer channel create -o orderer.example.com:7050 -c mychannel -f channel.tx

Into the cli container, let’s join PEER0 to the channel by passing in the genesis block

CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/peers/peer0.org1.example.com CORE_PEER_ADDRESS=peer0.org1.example.com:7051 CORE_PEER_LOCALMSPID="Org0MSP" CORE_PEER_TLS_ROOTCERT_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/cacerts/org1.example.com-cert.pem peer channel join -b mychannel.block

From the cli, install the chaincode source onto the peer’s filesystem

CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/peers/peer0.org1.example.com CORE_PEER_ADDRESS=peer0.org1.example.com:7051 CORE_PEER_LOCALMSPID="Org0MSP" CORE_PEER_TLS_ROOTCERT_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/cacerts/org1.example.com-cert.pem peer chaincode install -n mycc -v 1.0 -p github.com/hyperledger/fabric/examples/chaincode/go/chaincode_example02 >&log.txt

Then from the cli Start the chaincode container and initialize our key value pairs -P :we need “endorsement” from a peer belonging to Org0 OR Org1

CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/peers/peer0.org1.example.com CORE_PEER_ADDRESS=peer0.org1.example.com:7051 CORE_PEER_LOCALMSPID="Org0MSP" CORE_PEER_TLS_ROOTCERT_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/cacerts/org1.example.com-cert.pem peer chaincode instantiate -o orderer.example.com:7050 -C mychannel -n mycc -v 1.0 -c '{"Args":["init","a","100","b","200"]}' -P "OR ('Org0MSP.member','Org1MSP.member')"

Re-run the network but with TLS

PRIV_KEY=$(ls crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/keystore/) sed -i "s/ORDERER_PRIVATE_KEY/${PRIV_KEY}/g" docker-compose.yaml
PRIV_KEY=$(ls crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/keystore/) sed -i "s/PEER0_ORG1_PRIVATE_KEY/${PRIV_KEY}/g" docker-compose.yaml
PRIV_KEY=$(ls crypto-config/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/keystore/) sed -i "s/PEER0_ORG2_PRIVATE_KEY/${PRIV_KEY}/g" docker-compose.yaml
PRIV_KEY=$(ls crypto-config/peerOrganizations/org1.example.com/peers/peer1.org1.example.com/keystore/) sed -i "s/PEER1_ORG1_PRIVATE_KEY/${PRIV_KEY}/g" docker-compose.yaml
PRIV_KEY=$(ls crypto-config/peerOrganizations/org2.example.com/peers/peer1.org2.example.com/keystore/) sed -i "s/PEER1_ORG2_PRIVATE_KEY/${PRIV_KEY}/g" docker-compose.yaml

trash the existing containers

docker rm -f $(docker ps -aq)

Effacer les images de type de type dev-peer-...

docker images
docker rmi IMAGE_ID

Note : I only had dev-peer0.org1.example.com-mycc-1.0

rm -rf channel.tx orderer.block crypto-config

./network_setup.sh up mychannel2
./network_setup.sh down
./network_setup.sh restart

Tips and issues

Docker-compose errors

Sometimes these errors appear. Especially when permission problem or when restarting docker-compose

Error: channel create configuration tx file not found read channel.tx: is a directory

and

!!!!!!!!!!!!!!! Channel creation failed !!!!!!!!!!!!!!!!
cli                       | ================== ERROR !!! FAILED to execute End-2-End Scenario ==================

In another terminal:

cd ~/fabric-sample/release/samples/e2e
docker exec -it cli bash

I get this error (probably due to the previous errors):

Error response from daemon: Container 05539bef54617615021b3778a952ba644d6a9ba2063ac9726ea6b3323320a005 is not running

clone git repo :

git clone https://github.com/hyperledger/fabric.git

then launch :

fabric/examples/e2e_cli/download-dockerimages.sh
Docker tip

May be you'll need to allow non-root users to access the docker service:

https://askubuntu.com/questions/477551/how-can-i-use-docker-without-sudo