def channel_tx(opts):
"""Create and save Channel Transaction to K8S.
Args:
opts (dict): Nephos options dict.
"""
# Change to blockchain materials directory
chdir(opts["core"]["dir_config"])
# Create Channel Tx
for channel in get_channels(opts):
channel_key = f"{opts['channels'][channel]['channel_name']}.tx"
channel_file = join(opts["core"]["dir_crypto"], channel_key)
if not exists(channel_file):
# Channel transaction creation and storage
execute(
f"configtxgen -profile {opts['channels'][channel]['channel_profile']} -channelID {opts['channels'][channel]['channel_name']} -outputCreateChannelTx {channel_file}"
)
else:
logging.info(f"{channel_file} already exists")
# Create the channel transaction secret
for msp in get_msps(opts=opts):
if msp not in opts["channels"][channel]["msps"]:
continue
peer_namespace = get_namespace(opts, msp=msp)
secret_from_file(
secret=opts["channels"][channel]["secret_channel"],
namespace=peer_namespace,
key=channel_key,
filename=channel_file,
)
# Return to original directory
chdir(PWD)
def create_channel(opts):
"""Create Channel for Peer.
Args:
opts (dict): Nephos options dict.
"""
ord_msp = get_an_orderer_msp(opts=opts)
ord_namespace = get_namespace(opts, msp=ord_msp)
ord_name = random.choice(list(get_orderers(opts=opts, msp=ord_msp)))
cmd_suffix = peer_channel_suffix(opts, ord_msp, ord_name)
for msp in get_msps(opts=opts):
peer_namespace = get_namespace(opts, msp=msp)
for channel in get_channels(opts=opts):
channel_name = opts["channels"][channel]["channel_name"]
secret_channel = opts["channels"][channel]["secret_channel"]
if msp not in opts["channels"][channel]["msps"]:
continue
for index, release in enumerate(get_peers(opts=opts, msp=msp)):
# Get peer pod
pod_ex = get_helm_pod(peer_namespace, release, "hlf-peer")
# Check if the file exists
has_channel = False
while not has_channel:
has_channel = get_channel_block(
pod_ex, ord_name, ord_namespace, channel_name, cmd_suffix
)
if not has_channel:
pod_ex.execute(
(
"bash -c 'peer channel create "
+ f"-o {ord_name}-hlf-ord.{ord_namespace}.svc.cluster.local:7050 "
+ f"-c {channel_name} -f /hl_config/channel/{secret_channel}/{channel_name}.tx {cmd_suffix}'"
)
)
res, _ = pod_ex.execute("peer channel list")
channels = (res.split("Channels peers has joined: ")[1]).split()
if channel_name not in channels:
pod_ex.execute(
(
"bash -c "
+ "'CORE_PEER_MSPCONFIGPATH=$ADMIN_MSP_PATH "
+ f"peer channel join -b /var/hyperledger/{channel_name}.block {cmd_suffix}'"
)
)
def test_get_channels(self):
assert {"AChannel", "BChannel"} == get_channels(opts=self.OPTS)