selenium grid configuration
{
"port": 4444,
"newSessionWaitTimeout": -1,
"servlets" : [],
"withoutServlets": [],
"custom": {},
"capabilityMatcher": "org.openqa.grid.internal.utils.DefaultCapabilityMatcher",
"registryClass": "org.openqa.grid.internal.DefaultGridRegistry",
"throwOnCapabilityNotPresent": true,
"cleanUpCycle": 5000,
"role": "hub",
"debug": false,
"browserTimeout": 0,
"timeout": 1800
}