Doc: configuration module (#493)

src/aleph/chains/chain_service.py

@@ -91,6 +91,11 @@ async def chain_event_loop(self, config: Config):
             if config.ethereum.packing_node.value:
                 publisher_tasks.append(self.chain_writer_task(Chain.ETH, config))
 
+        if config.nuls2.enabled.value:
+            listener_tasks.append(self.chain_reader_task(Chain.NULS2, config))
+            if config.nuls2.packing_node.value:
+                publisher_tasks.append(self.chain_writer_task(Chain.NULS2, config))
+
         if config.tezos.enabled.value:
             listener_tasks.append(self.chain_reader_task(Chain.TEZOS, config))
 

src/aleph/commands.py

@@ -109,11 +109,6 @@ async def main(args: List[str]) -> None:
         LOGGER.critical(msg)
         raise KeyNotFoundException(msg)
 
-    if args.port:
-        config.aleph.port.value = args.port
-    if args.host:
-        config.aleph.host.value = args.host
-
     if args.sentry_disabled:
         LOGGER.info("Sentry disabled by CLI arguments")
     else:

src/aleph/config.py

@@ -6,132 +6,185 @@
 def get_defaults():
     return {
         "logging": {
+            # Logging level.
             "level": logging.WARNING,
+            # Max log file size for each process.
             "max_log_file_size": 50_000_000,  # 50MB
         },
         "aleph": {
+            # Name of the P2P pubsub topic used to distribute pending messages across the aleph.im network.
             "queue_topic": "ALEPH-TEST",
-            "host": "0.0.0.0",
-            "port": 8000,
+            # URL of another Core Channel Node to compare the synchronization status.
             "reference_node_url": None,
+            # URL of the aleph.im cross-chain indexer.
             "indexer_url": "https://multichain.api.aleph.cloud",
             "balances": {
+                # Addresses allowed to publish balance updates.
                 "addresses": [
                     "0xB34f25f2c935bCA437C061547eA12851d719dEFb",
                     "0xa1B3bb7d2332383D96b7796B908fB7f7F3c2Be10",
                 ],
+                # POST message type for balance updates.
                 "post_type": "balances-update",
             },
             "jobs": {
                 "pending_messages": {
+                    # Maximum number of retries for a message.
                     "max_retries": 10,
+                    # Maximum number of messages/files fetched at the same time.
                     "max_concurrency": 10,
-                    "store": 30,
                 },
                 "pending_txs": {
+                    # Maximum number of chain/sync events processed at the same time.
                     "max_concurrency": 20,
                 },
             },
         },
         "p2p": {
+            # Port used for HTTP communication between nodes.
             "http_port": 4024,
+            # Port used for P2P communication between nodes.
             "port": 4025,
+            # Port used to communicate with the local P2P service.
             "control_port": 4030,
+            # Hostname of the P2P service.
             "daemon_host": "p2p-service",
+            # Hostname of the RabbitMQ service, as viewed by the Core Channel Node code.
             "mq_host": "rabbitmq",
+            # Delay between connection attempts to other nodes on the network.
             "reconnect_delay": 60,
+            # P2P pubsub topic used for liveness checks.
             "alive_topic": "ALIVE",
+            # Enabled P2P clients (HTTP and/or P2P).
             "clients": ["http"],
+            # Bootstrap peers for the P2P service.
             "peers": [
                 "/dns/api1.aleph.im/tcp/4025/p2p/Qmaxufiqdyt5uVWcy1Xh2nh3Rs3382ArnSP2umjCiNG2Vs",
                 "/dns/api2.aleph.im/tcp/4025/p2p/QmZkurbY2G2hWay59yiTgQNaQxHSNzKZFt2jbnwJhQcKgV",
             ],
+            # Topics to listen to by default on the P2P service.
             "topics": ["ALIVE", "ALEPH-TEST"],
         },
-        "storage": {"folder": "/var/lib/pyaleph", "store_files": True, "engine": "filesystem"},
-        "nuls": {
-            "chain_id": 8964,
-            "enabled": False,
-            "packing_node": False,
-            "private_key": None,
-            "commit_delay": 14,
+        "storage": {
+            # Folder used to store files on the node.
+            "folder": "/var/lib/pyaleph",
+            # Whether to store files on the node.
+            "store_files": True,
         },
         "nuls2": {
+            # NULS2 chain ID.
             "chain_id": 1,
+            # Whether to fetch transactions from NULS2.
             "enabled": False,
+            # Whether to enable publishing of messages on NULS2 from this node.
             "packing_node": False,
+            # NULS2 RPC node URL.
             "api_url": "https://apiserver.nuls.io/",
+            # NULS2 explorer URL.
             "explorer_url": "https://nuls.world",
+            # NULS2 private key. Only required if packing_node is set to true.
             "private_key": None,
+            # Address of the aleph.im smart contract on NULS2.
             "sync_address": None,
+            # Delay in seconds between publication attempts.
             "commit_delay": 14,
+            # Remark filter for transactions.
             "remark": "ALEPH-SYNC",
-            "token_contract": None,
         },
         "bsc": {
+            # Whether to fetch transactions from the BSC chain.
             "enabled": True,
+            # Address of the aleph.im smart contract on the BSC chain.
             "sync_contract": "0xdF270752C8C71D08acbae4372687DA65AECe2D5D",
         },
         "ethereum": {
+            # Whether to fetch transactions from Ethereum.
             "enabled": False,
+            # Ethereum RPC node URL.
             "api_url": "http://127.0.0.1:8545",
+            # Whether to enable publishing of messages on Ethereum from this node.
             "packing_node": False,
+            # Ethereum chain ID.
             "chain_id": 1,
+            # Ethereum private key. Only required if packing_node is set to true.
             "private_key": None,
+            # Address of the aleph.im smart contract on Ethereum.
             "sync_contract": None,
+            # Ethereum block height to start from when fetching sync events.
             "start_height": 11400000,
+            # Delay in seconds between publication attempts.
             "commit_delay": 35,
-            "token_contract": None,
-            "token_start_height": 10900000,
+            # Maximum gas price accepted when publishing to Ethereum.
             "max_gas_price": 150000000000,
+            # Authorized publishers for sync events.
             "authorized_emitters": ["0x23eC28598DCeB2f7082Cc3a9D670592DfEd6e0dC"],
         },
         "tezos": {
+            # Whether to fetch transactions from Tezos.
             "enabled": True,
+            # URL of the aleph.im indexer for Tezos.
             "indexer_url": "https://tezos-mainnet.api.aleph.cloud",
+            # Address of the aleph.im smart contract on Tezos.
             "sync_contract": "KT1FfEoaNvooDfYrP61Ykct6L8z7w7e2pgnT",
         },
         "postgres": {
+            # Hostname of the local PostgreSQL database.
             "host": "postgres",
+            # Port of the local PostgreSQL database.
             "port": 5432,
+            # Name of the database.
             "database": "aleph",
+            # Username for the local PostgreSQL database.
             "user": "aleph",
+            # Password for the local PostgreSQL database.
             "password": "decentralize-everything",
+            # Maximum number of concurrent connections to the local PostgreSQL database.
             "pool_size": 50,
         },
-        "mail": {
-            "email_sender": "aleph@127.0.0.1.localdomain",
-            "smtp_url": "smtp://127.0.0.1",
-        },
         "ipfs": {
+            # Whether to enable storage and communication on IPFS.
             "enabled": True,
+            # Hostname of the IPFS service.
             "host": "ipfs",
+            # Port of the IPFS service.
             "port": 5001,
-            "gateway_port": 8080,
-            "id": None,
+            # IPFS pubsub topic used for liveness checks.
             "alive_topic": "ALEPH_ALIVE",
+            # Delay between connection attempts to other nodes on the network.
             "reconnect_delay": 60,
+            # Bootstrap peers for IPFS.
             "peers": [
                 "/dnsaddr/api1.aleph.im/ipfs/12D3KooWNgogVS6o8fVsPdzh2FJpCdJJLVSgJT38XGE1BJoCerHx",
                 "/ip4/51.159.57.71/tcp/4001/p2p/12D3KooWBH3JVSBwHLNzxv7EzniBP3tDmjJaoa3EJBF9wyhZtHt2",
                 "/ip4/62.210.93.220/tcp/4001/p2p/12D3KooWLcmvqojHzUnR7rr8YhFKGDD8z7fmsPyBfAm2rT3sFGAF",
             ],
         },
         "rabbitmq": {
+            # Hostname of the RabbitMQ service.
             "host": "rabbitmq",
+            # Port of the RabbitMQ service.
             "port": 5672,
+            # Username of the RabbitMQ service.
             "username": "aleph-p2p",
+            # Password of the RabbitMQ service.
             "password": "change-me!",
+            # Name of the exchange used to publish messages from the node to the P2P network.
             "pub_exchange": "p2p-publish",
+            # Name of the exchange used to publish messages from the P2P network to the node.
             "sub_exchange": "p2p-subscribe",
+            # Name of the exchange used to publish processed messages (output of the message processor).
             "message_exchange": "aleph-messages",
         },
         "redis": {
+            # Hostname of the Redis service.
             "host": "redis",
+            # Port of the Redis service.
             "port": 6379,
         },
         "sentry": {
+            # Sentry DSN.
             "dsn": None,
+            # Sentry trace sample rate.
             "traces_sample_rate": None,
         },
     }

src/aleph/services/ipfs/common.py

@@ -8,11 +8,6 @@ async def get_base_url(config):
     return "http://{}:{}".format(config.ipfs.host.value, config.ipfs.port.value)
 
 
-async def get_ipfs_gateway_url(config, hash):
-    return "http://{}:{}/ipfs/{}".format(
-        config.ipfs.host.value, config.ipfs.gateway_port.value, hash
-    )
-
 
 def make_ipfs_client(config: Config, timeout: int = 60) -> aioipfs.AsyncIPFS:
     host = config.ipfs.host.value