Runs just one collator node that will not connect to any other nodes. Defaults to running in instant sealing mode where a block will be triggered when a transaction enters the validated transaction pool. A "collator node" is a Frequency parachain node that is actively collating (aka forming blocks to submit to the relay chain, although in this case without a relay chain).
docker run --rm -p 9944:9944 frequencychain/standalone-node:<version.tag>
If running in manual sealing mode or to form empty blocks in instant sealing mode, the engine_createBlock RPC can be used:
curl http://localhost:9944 -H "Content-Type:application/json;charset=utf-8" -d '{ \
"jsonrpc":"2.0", \
"id":1, \
"method":"engine_createBlock", \
"params": [true, true] \
}'
| Argument | Description |
|---|---|
--dev | Specify the development chain. This flag sets --chain=dev, --force-authoring, --rpc-cors=all, --alice, and --tmp flags, unless explicitly overridden |
-lruntime=debug | Sets a the custom logging filter for the 'runtime' target to 'debug'. Syntax is <target>=<level>, e.g. -lsync=debug. Log levels (least to most verbose) are error, warn, info, debug, and trace. By default, all targets log info. The global log level can be set with -l<level> |
--no-telemetry | Disable connecting to the Substrate telemetry server. Telemetry is on by default on global chains |
--no-prometheus | Do not expose a Prometheus exporter endpoint. Prometheus metric endpoint is enabled by default |
--rpc-port=9944 | Specify JSON-RPC server TCP port |
--rpc-external | Listen to all RPC interfaces. Default is local. Note: not all RPC methods are safe to be exposed publicly. Use an RPC proxy server to filter out dangerous methods. More details: https://docs.substrate.io/main-docs/build/custom-rpc/#public-rpcs. Use --unsafe-rpc-external to suppress the warning if you understand the risks |
--rpc-cors=all | Specify browser Origins allowed to access the HTTP & WS RPC servers. A comma-separated list of origins (protocol://domain or special null value). Value of all will disable origin validation. Default is to allow localhost and https://polkadot.js.org origins. When running in --dev mode the default is to allow all origins |
--rpc-methods=Unsafe | RPC methods to expose |
--base-path=/data | Specify custom base path |
--sealing=instant | Manual sealing + automatically form a block each time a transaction enters the validated transaction pool |
Note: Docker --rm removes the volume when stopped.
docker run --rm -p 9944:9944 frequencychain/standalone-node:<version.tag>
The following environment variables are supported by this image. The same behavior may be requested by overriding the command line arguments in the CMD of the container; however, certain use cases (GitHub Actions) do not support overriding CMD when instantiating a container-based service in a workflow. In such a case, injecting these environment variables is a viable workaround.
| Environmnet Variable | Possible Values | Description |
|---|---|---|
SEALING_MODE | instant, interval, manual | Overrides --sealing=SEALING_MODE |
SEALING_INTERVAL | integer > 0 | Adds --sealing-interval=SEALING_INTERVAL. The sealing interval in seconds (in interval sealing mode) |
CREATE_EMPTY_BLOCKS | true | Add --sealing-create-empty-blocks. Create empty blocks in interval sealing modes |
| Argument | Description |
|---|---|
--sealing=manual | Only form a block when engine_createBlock RPC is called |
--help | See all the options possible |
docker run --rm -p 9944:9944 frequencychain/standalone-node:<version.tag> -- --manual-seal
| Node | Ports | Explorer URL |
|---|---|---|
| Frequency Local-Only Node | ws and rpc :9944 | 127.0.0.1:9944 |
Content type
Image
Digest
sha256:27f7b3ded…
Size
124.7 MB
Last updated
13 days ago
Requires Docker Desktop 4.37.1 or later.