This builds the Parity Polkadot node.
All images are built with [Google Cloud Build] and are triggered automatically from any pushed tags.
You can view available images on the Docker Hub
This image support both passing args directly to the image or setting envrionment variables (see below).
docker run -e "POLKADOT_ENABLE_DEV=true" -e "POLKADOT_BASE_PATH=/data" ajcrowe/polkadot --no-telelmetry
To build the container you simply need to pass in the git reference you want to build
docker build -t user/polkadot:v0.6.3 --build-arg GIT_REF=v0.6.3 .
You can pass a number environment variables to configure the node
Note: Prior to v0.3.0 environment variables were not prefixed with POLKADOT_
Note: These might be out of date please check run.sh for all available environment variables
| Environment Variable | Flag | Description |
|---|---|---|
POLKADOT_DEV |
--dev |
Run in development mode; implies --chain=dev --validator --key Alice |
POLKADOT_LIGHT |
--light |
Run in light client mode |
POLKADOT_FORCE-AUTHORING |
--force-authoring |
Enable authoring even when offline. |
POLKADOT_NO-GRANDPA |
--no-grandpa |
Disable GRANDPA when running in validator mode |
POLKADOT_NO_MDNS |
--no-mdns |
By default, the network will use mDNS to discover other nodes on the local network. This disables it |
POLKADOT_NO_TELEMETRY |
--no-telelmetry |
Should not connect to the Polkadot telemetry server (telemetry is on by default on global chains) |
POLKADOT_TELEMETRY |
-t --telemetry |
Listen to all RPC interfaces (default is local) |
POLKADOT_VALIDATOR |
--validator |
Enablevalidator mode |
POLKADOT_RPC_EXTERNAL |
--rcp-external |
Listen to all RPC interfaces (default is local) |
POLKADOT_WS_EXTERNAL |
--ws-external |
Listen to all Websocket interfaces (default is local) |
| Environment Variable | Flag | Description |
|---|---|---|
POLKADOT_BASE_PATH |
-d --base-path |
Specify custom base path |
POLKADOT_BLOCK_CONSTRUCTION_EXECUTION |
--block-construction-execution |
|
POLKADOT_BOOTNODES |
--bootnodes |
Specify a list of bootnodes |
POLKADOT_CHAIN |
--chain |
Specify the chain specification (one of krummelanke, dev, local or staging) |
POLKADOT_DB_CACHE |
--db-cache |
Limit the memory the database cache can use |
POLKADOT_EXECUTION |
--execution |
The means of execution used when calling into the runtime. Can be either wasm, native or both. |
POLKADOT_IMPORTING_EXECUTION |
--importing-execution |
The means of execution used when calling into the runtime while importing blocks |
POLKADOT_IN_PEERS |
--in-peers |
Specify the maximum number of incoming connections we're accepting |
POLKADOT_IN_PEERS |
--in-peers |
Specify the maximum number of incoming connections we're accepting [default: 25] |
POLKADOT_KEY |
--key |
Specify additional key seed |
POLKADOT_KEYSTORE_PATH |
--keystore-path |
Specify custom keystore path |
POLKADOT_LISTEN_ADDR |
--listen-addr |
Listen on this multiaddress |
POLKADOT_LOG |
-l --log |
Sets a custom logging filter |
POLKADOT_MAX_HEAP_PAGES |
--max-heap-pages |
The maximum number of 64KB pages to ever allocate for Wasm execution. Don't |
POLKADOT_MIN_HEAP_PAGES |
--min-heap-pages |
The number of 64KB pages to allocate for Wasm execution initially. |
POLKADOT_NAME |
--name |
The human-readable name for this node, as reported to the telemetry server, if enabled |
POLKADOT_NODE_KEY_FILE |
--node-key-file |
The file from which to read the node's secret key to use for libp2p networking |
POLKADOT_NODE_KEY_TYPE |
--node-key-type |
The type of secret key to use for libp2p networking |
POLKADOT_NODE_KEY |
--node-key |
Specify node secret key (64-character hex string) |
POLKADOT_OFFCHAIN_WORKER_EXECUTION |
--offchain-worker-execution |
Should execute offchain workers on every block |
POLKADOT_OFFCHAIN_WORKER |
--offchain-worker |
The means of execution used when calling into the runtime while constructing blocks |
POLKADOT_OTHER_EXECUTION |
--other-execution |
The means of execution used when calling into the runtime while not syncing, importing or constructing blocks. |
POLKADOT_OUT_PEERS |
--out-peers |
Specify the number of outgoing connections we're trying to maintain |
POLKADOT_POOL_KBYTES |
--pool-kbytes |
Maximum number of kilobytes of all transactions stored in the pool |
POLKADOT_POOL_LIMIT |
--pool-limit |
Maximum number of transactions in the transaction pool |
POLKADOT_PORT |
--port |
Specify p2p protocol TCP port |
POLKADOT_PRUNING |
--pruning |
Specify the pruning mode, a number of blocks to keep or "archive". Default is 256. |
POLKADOT_RESERVED_NODES |
--reserved-nodes |
Specify a list of reserved node addresses |
POLKADOT_RPC_PORT |
--rpc-port |
Specify HTTP RPC server TCP port |
POLKADOT_SYNCING_EXECUTION |
--syncing-execution |
The means of execution used when calling into the runtime while syncing blocks |
POLKADOT_TELEMETRY_URL |
--telemetry-url |
The URL of the telemetry server. Implies --telemetry |
POLKADOT_WS_PORT |
--ws-port |
Specify WebSockets RPC server TCP port |