@graphprotocol/network-monitor
v0.5.2
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Graph Network Monitor
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Graph Network Monitor
The network monitor runs at a regular interval and checks that a number of conditions pass. If any of these tests fails it will issue an alert through Pager Duty.
Alerts are deduplicated by test name and epoch when it was raised to avoid multiple notifications.
Configuration
The monitor uses the network subgragh, deployed contracts and protocol config files as source of information.
To correctly configure the monitor you'll need to:
- Create a config file to describe the tests you want to run. Use
--config
to pass the path to the file (default:config.yaml
). - Create a providers file to describe the providers you want to use. Use
--providers
to pass the path to the file (default:providers.yaml
). - Specify the network subgraph using
--network-subgraph
(default:graphprotocol/graph-network-mainnet
).
Running from NPM packages
Install the network monitor as NPM package, using:
npm install -g @graphprotocol/network-monitor
After that, it can be run with the following command:
# Network monitor
graph-network-monitor start ...
Running locally
Clone the repository and run yarn install
followed by yarn prepare
.
After that, it can be run with the following command:
# Mainnet
ts-node src/index.ts start
# Other network
ts-node src/index.ts start \
--network-subgraph <NETWORK_SUBGRAPH_NAME_> \
--config <CONFIG_FILE> \
--providers <PROVIDERS_FILE>
Running with Docker
Build the docker image and run it using:
# Build the image
docker build -t graph-network-monitor .
# Run on mainnet
docker run \
--env NETWORK_MONITOR_ETHEREUM=<ETHEREUM_RPC> \
--env NETWORK_MONITOR_ARBITRUM=<ARBITRUM_RPC> \
graph-network-monitor
# Run on other network
docker run \
--env NETWORK_MONITOR_ETHEREUM=<ETHEREUM_RPC> \
--env NETWORK_MONITOR_ARBITRUM=<ARBITRUM_RPC> \
--env NETWORK_MONITOR_NETWORK_SUBGRAPH=<NETWORK_SUBGRAPH_NAME> \
--env NETWORK_MONITOR_CONFIG=<CONFIG_FILE> \
graph-network-monitor
Usage
Network Monitor
$ graph-network-monitor start --help
Run monitoring tests
Logging
--metrics-port Port to serve Prometheus metrics at [number] [default: 7300]
--log-level Log level [string] [default: "debug"]
Network Subgraph
--network-subgraph Subgraph name to query the network subgraph from
[string] [required] [default: "graphprotocol/graph-network-mainnet"]
Monitor
--interval Number of seconds interval for monitoring [number] [default: 300]
--config Config file [string] [required] [default: "./config.yaml"]
--providers Providers config file
[string] [required] [default: "./providers.yaml"]
--dry-run Don't send alerts if tests fail [boolean] [default: false]
Options:
--version Show version number [boolean]
--help Show help [boolean]
Adding tests
The monitor will execute each configured test sequentially, and raise alerts whenever these tests return a non-ok status.
Each test is a simple function with a defined interface.
Interface
To add a new test, create a function under the /tests
folder that receives the following parameters:
logger: Logger,
contracts: NetworkContracts,
testFunctionConfig: TestFunctionConfig,
- You can use
logger
as a structured logging facility. - The
contracts
objects has all the contract interfaces connected to the Ethereum provider using ethers.js testFunctionConfig
provides an interface with access to:networkSubgraph
: the name of the network subgraph to queryproviders
contains credentials to connect to JSON RPC nodes in different networks
This function must return a TestResult with the following interface:
export interface TestResult {
ok: boolean
summary?: string
details?: Record<string, string>
}
- Whenever
ok
is set to false, the monitor will raise an alert for that test. summary
should contain a descriptive message about the error. If left empty, the monitor will create a summary based on the function name.- Use
details
to store any additional information about how the test failed for debugging purposes.
Enable
Finally, import the function and add it to the monitor.addTests()
function located in the /command/monitor.ts
file.
Copyright
Copyright © 2021 The Graph Foundation
Licensed under the MIT license.