Implemented anchor peer configuration

src/api-engine/api/lib/configtxlator/configtxlator.py

@@ -4,6 +4,8 @@
 from subprocess import call, run
 from api.config import FABRIC_TOOL, FABRIC_VERSION
 
+import logging
+LOG = logging.getLogger(__name__)
 
 class ConfigTxLator:
     """
@@ -24,17 +26,21 @@ def proto_encode(self, input, type, output):
             output: A file to write the output to.
         """
         try:
-            call([self.configtxlator,
-                  "proto_encode",
-                  "--input={}".format(input),
-                  "--type={}".format(type),
-                  "--output={}".format(output),
-                  ])
+            command = [self.configtxlator,
+                       "proto_encode",
+                       "--input={}".format(input),
+                       "--type={}".format(type),
+                       "--output={}".format(output),
+                       ]
+
+            LOG.info(" ".join(command))
+
+            call(command)
         except Exception as e:
             err_msg = "configtxlator proto decode fail! "
             raise Exception(err_msg + str(e))
 
-    def proto_decode(self, input, type):
+    def proto_decode(self, input, type, output):
         """
         Converts a proto message to JSON.
 
@@ -45,16 +51,17 @@ def proto_decode(self, input, type):
             config
         """
         try:
-            res = run([self.configtxlator,
+            command = [self.configtxlator,
                        "proto_decode",
                        "--type={}".format(type),
                        "--input={}".format(input),
-                       ],
-                      capture_output=True)
-            if res.returncode == 0 :
-                return res.stdout
-            else:
-                return res.stderr
+                       "--output={}".format(output),
+                       ]
+
+            LOG.info(" ".join(command))
+
+            call(command)
+
         except Exception as e:
             err_msg = "configtxlator proto decode fail! "
             raise Exception(err_msg + str(e))
@@ -71,13 +78,17 @@ def compute_update(self, original, updated, channel_id, output):
             output: A file to write the JSON document to.
         """
         try:
-            call([self.configtxlator,
-                  "compute_update",
-                  "--original={}".format(original),
-                  "--updated={}".format(updated),
-                  "--channel_id={}".format(channel_id),
-                  "--output={}".format(output),
-                  ])
+            command = [self.configtxlator,
+                       "compute_update",
+                       "--original={}".format(original),
+                       "--updated={}".format(updated),
+                       "--channel_id={}".format(channel_id),
+                       "--output={}".format(output),
+                       ]
+
+            LOG.info(" ".join(command))
+
+            call(command)
         except Exception as e:
             err_msg = "configtxlator compute update fail! "
             raise Exception(err_msg + str(e))

src/api-engine/api/lib/peer/channel.py

@@ -87,12 +87,25 @@ def update(self, channel, channel_tx, orderer_url):
             orderer_url: Ordering service endpoint.
         """
         try:
-            res = os.system("{} channel update -c {}  -f {} -o {}"
-                            .format(self.peer, channel, channel_tx, orderer_url))
+            ORDERER_CA = os.getenv("ORDERER_CA")
+
+            command = [
+                self.peer,
+                "channel", "update",
+                "-f", channel_tx,
+                "-c", channel,
+                "-o", orderer_url,
+                "--ordererTLSHostnameOverride", orderer_url.split(":")[0],
+                "--tls",
+                "--cafile", ORDERER_CA
+            ]
+            LOG.info(" ".join(command))
+
+            res = subprocess.run(command, check=True)
+
         except Exception as e:
             err_msg = "update channel failed for {}!".format(e)
             raise Exception(err_msg)
-        res = res >> 8
         return res
 
     def fetch(self, block_path, channel, orderer_general_url, max_retries=5, retry_interval=1):

src/api-engine/api/routes/channel/views.py

@@ -18,7 +18,7 @@
 
 from api.config import CELLO_HOME
 from api.common.serializers import PageQuerySerializer
-from api.utils.common import with_common_response, parse_block_file, to_dict
+from api.utils.common import with_common_response, parse_block_file, to_dict, json_filter, json_add_anchor_peer, json_create_envelope
 from api.lib.configtxgen import ConfigTX, ConfigTxGen
 from api.lib.peer.channel import Channel as PeerChannel
 from api.lib.configtxlator.configtxlator import ConfigTxLator
@@ -147,7 +147,8 @@ def create(self, request):
                 peer_channel_join(name, peers, org)
 
                 # set anchor peer
-                set_anchor_peer(name, org, peers, ordering_node)
+                anchor_peer = Node.objects.get(id=peers[0])
+                set_anchor_peer(name, org, anchor_peer, ordering_node)
 
                 # save channel to db
                 channel = Channel(
@@ -425,31 +426,130 @@ def peer_channel_join(name, peers, org):
                 CELLO_HOME, org.network.name, name)
         )
 
-def set_anchor_peer(name, org, peers, ordering_node):
+def set_anchor_peer(name, org, anchor_peer, ordering_node):
     """
     Set anchor peer for the channel.
     :param org: Organization object.
-    :param peers: list of Node objects
+    :param anchor_peer: Anchor peer node
+    :param ordering_node: Orderer node
     :return: none
     """
-    peer_channel_fetch(name, org, peers, ordering_node)
+    org_msp = '{}'.format(org.name.split(".", 1)[0].capitalize())
+    channel_artifacts_path = "{}/{}".format(CELLO_HOME, org.network.name)
+
+    # Fetch the channel block from the orderer
+    peer_channel_fetch(name, org, anchor_peer, ordering_node)
+
+    # Decode block to JSON
+    ConfigTxLator().proto_decode(
+        input="{}/config_block.pb".format(channel_artifacts_path),
+        type="common.Block",
+        output="{}/config_block.json".format(channel_artifacts_path),
+    )
+
+    # Get the config data from the block
+    json_filter(
+        input="{}/config_block.json".format(channel_artifacts_path),
+        output="{}/config.json".format(channel_artifacts_path),
+        expression=".data.data[0].payload.data.config"
+    )
 
+    # add anchor peer config
+    anchor_peer_config = {
+        "AnchorPeers": {
+            "mod_policy": "Admins",
+            "value": {
+                "anchor_peers": [
+                    {
+                        "host": anchor_peer.name + "." + org.name,
+                        "port": 7051
+                    }
+                ]
+            },
+            "version": 0
+        }
+    }
+
+    json_add_anchor_peer(
+        input="{}/config.json".format(channel_artifacts_path),
+        output="{}/modified_config.json".format(channel_artifacts_path),
+        anchor_peer_config=anchor_peer_config,
+        org_msp=org_msp
+    )
+
+    ConfigTxLator().proto_encode(
+        input="{}/config.json".format(channel_artifacts_path),
+        type="common.Config",
+        output="{}/config.pb".format(channel_artifacts_path),
+    )
+
+    ConfigTxLator().proto_encode(
+        input="{}/modified_config.json".format(channel_artifacts_path),
+        type="common.Config",
+        output="{}/modified_config.pb".format(channel_artifacts_path),
+    )
+
+    ConfigTxLator().compute_update(
+        original="{}/config.pb".format(channel_artifacts_path),
+        updated="{}/modified_config.pb".format(channel_artifacts_path),
+        channel_id=name,
+        output="{}/config_update.pb".format(channel_artifacts_path),
+    )
+
+    ConfigTxLator().proto_decode(
+        input="{}/config_update.pb".format(channel_artifacts_path),
+        type="common.ConfigUpdate",
+        output="{}/config_update.json".format(channel_artifacts_path),
+    )
 
-def peer_channel_fetch(name, org, peers, ordering_node):
+    # Create config update envelope
+    json_create_envelope(
+        input="{}/config_update.json".format(channel_artifacts_path),
+        output="{}/config_update_in_envelope.json".format(channel_artifacts_path),
+        channel=name
+    )
+
+    ConfigTxLator().proto_encode(
+        input="{}/config_update_in_envelope.json".format(channel_artifacts_path),
+        type="common.Envelope",
+        output="{}/config_update_in_envelope.pb".format(channel_artifacts_path),
+    )
+
+    # Update the channel of anchor peer
+    peer_channel_update(name, org, anchor_peer, ordering_node, channel_artifacts_path)
+
+
+def peer_channel_fetch(name, org, anchor_peer, ordering_node):
     """
     Fetch the channel block from the orderer.
-    :param peers: list of Node objects
+    :param anchor_peer: Anchor peer node
     :param org: Organization object.
     :param channel_name: Name of the channel.
     :return: none
     """
-    peer_node = Node.objects.get(id=peers[0])
-    envs = init_env_vars(peer_node, org)
+    envs = init_env_vars(anchor_peer, org)
     peer_channel_cli = PeerChannel(**envs)
     peer_channel_cli.fetch(block_path="{}/{}/config_block.pb".format(CELLO_HOME, org.network.name),
                             channel=name, orderer_general_url="{}.{}:{}".format(
                                ordering_node.name, org.name.split(".", 1)[1], str(7050)))
 
+def peer_channel_update(name, org, anchor_peer, ordering_node, channel_artifacts_path):
+    """
+    Update the channel.
+    :param anchor_peer: Anchor peer node
+    :param org: Organization object.
+    :param channel_name: Name of the channel.
+    :return: none
+    """
+    envs = init_env_vars(anchor_peer, org)
+    peer_channel_cli = PeerChannel(**envs)
+    peer_channel_cli.update(
+        channel=name,
+        channel_tx="{}/config_update_in_envelope.pb".format(channel_artifacts_path),
+        orderer_url="{}.{}:{}".format(
+            ordering_node.name, org.name.split(".", 1)[1], str(7050)),
+    )
+
 
 def init_env_vars(node, org):
     """

src/api-engine/api/utils/common.py

@@ -13,7 +13,10 @@
 import uuid
 from zipfile import ZipFile
 from json import loads
+import json
+import logging
 
+LOG = logging.getLogger(__name__)
 
 def make_uuid():
     return str(uuid.uuid4())
@@ -153,3 +156,109 @@ def parse_block_file(data):
 
 def to_dict(data):
     return loads(data)
+
+
+def json_filter(input, output, expression):
+    """
+    Process JSON data using path expression similar to jq
+
+    Args:
+        input (str): JSON data or file path to JSON
+        output (str): Path expression like ".data.data[0].payload.data.config"
+
+    Returns:
+        dict: Processed JSON data
+    """
+    # if json_data is a file path, read the file
+    if isinstance(input, str):
+        with open(input, 'r', encoding='utf-8') as f:
+            data = json.load(f)
+    else:
+        data = input
+
+    # parse the path expression
+    path_parts = expression.strip('.').split('.')
+    result = data
+
+    for part in path_parts:
+        # handle array index, like data[0]
+        if '[' in part and ']' in part:
+            array_name = part.split('[')[0]
+            index = int(part.split('[')[1].split(']')[0])
+            result = result[array_name][index]
+        else:
+            result = result[part]
+
+    with open(output, 'w', encoding='utf-8') as f:
+        json.dump(result, f, sort_keys=False, indent=4)
+
+    LOG.info("jq {} {} -> {}".format(expression, input, output))
+
+def json_add_anchor_peer(input, output, anchor_peer_config, org_msp):
+    """
+    Add anchor peer to the organization
+
+    Args:
+        input (str): JSON data or file path to JSON
+        output (str): Path expression like ".data.data[0].payload.data.config"
+        expression (str): Anchor peer data
+    """
+    # if json_data is a file path, read the file
+    if isinstance(input, str):
+        with open(input, 'r', encoding='utf-8') as f:
+            data = json.load(f)
+    else:
+        data = input
+
+    if "groups" not in data["channel_group"]:
+        data["channel_group"]["groups"] = {}
+    if "Application" not in data["channel_group"]["groups"]:
+        data["channel_group"]["groups"]["Application"] = {"groups": {}}
+    if org_msp not in data["channel_group"]["groups"]["Application"]["groups"]:
+        data["channel_group"]["groups"]["Application"]["groups"][org_msp] = {"values": {}}
+
+    data["channel_group"]["groups"]["Application"]["groups"][org_msp]["values"].update(anchor_peer_config)
+
+    with open(output, 'w', encoding='utf-8') as f:
+        json.dump(data, f, sort_keys=False, indent=4)
+
+    LOG.info("jq '.channel_group.groups.Application.groups.Org1MSP.values += ... ' {} -> {}".format(input, output))
+
+def json_create_envelope(input, output, channel):
+    """
+    Create a config update envelope structure
+
+    Args:
+        input (str): Path to the config update JSON file
+        output (str): Path to save the envelope JSON
+        channel (str): Name of the channel
+    """
+    try:
+        # Read the config update file
+        with open(input, 'r', encoding='utf-8') as f:
+            config_update = json.load(f)
+
+        # Create the envelope structure
+        envelope = {
+            "payload": {
+                "header": {
+                    "channel_header": {
+                        "channel_id": channel,
+                        "type": 2
+                    }
+                },
+                "data": {
+                    "config_update": config_update
+                }
+            }
+        }
+
+        # Write the envelope to output file
+        with open(output, 'w', encoding='utf-8') as f:
+            json.dump(envelope, f, sort_keys=False, indent=4)
+
+        LOG.info("echo 'payload ... ' | jq . > {}".format(output))
+
+    except Exception as e:
+        LOG.error("Failed to create config update envelope: {}".format(str(e)))
+        raise