Defining a pool

Pools are defined by creating a pool definition file. The file can be placed in a directory within your repository. \

The below configuration details a pool with tag 'DEV-POOL' allocated with 20 scratch orgs. Read on below to understand other configurations that are available

{
    "tag": "DEV-POOL",
    "maxAllocation": 20,
    "expiry": 10,
    "batchSize": 10,
    "configFilePath": "config/project-scratch-def.json",
    "relaxAllIPRanges": true,
    "installAll": true,
    "enableSourceTracking": true,
    "retryOnFailure": true,
    "succeedOnDeploymentErrors": true,
    "fetchArtifacts": {
        "npm": {
            "scope": "myproject",
    }
}

The latest JSON schema for scratch org pool configuration can be found here.​ The pool prepare command accepts a JSON configuration file that defines settings and attributes of the scratch org pool. The properties accepted by the configuration file are shown in the table below.

Property	Type	Description
tag	string	Name used to identify the scratch org pool
waitTime	int	Minutes the command should wait for a scratch org to be created, Default is 6 minutes
expiry	int	Number of days for which the scratch orgs are active
maxAllocation	int	Maximum capacity of the pool
batchSize	int	Number of processes for creating scratch orgs in parallel
configFilePath	string	Path to scratch org definition JSON file
succeedOnDeploymentErrors	boolean	Whether to persist scratch org to the pool for a deployment error, default:true
snapshotPool	string	Name of the earlier prepared scratch org pool that can be utilized by this pool, to prepare pools in multiple stages.
installAll	boolean	Install all package artifacts, in addition to the managed package dependencies
releaseConfigFile	string	Path to a release config file to create pools with selected packages. Use in conjunction with installAll
enableSourceTracking	boolean	Enable source tracking by deploying packages using source:push and persisting source tracking files
disableSourcePackageOverride	boolean	Disable overriding unlocked packages as source packages, Rather install unlocked packages as unlocked
relaxAllIPRanges	boolean	Relax all IP addresses, allowing all global access to scratch orgs
ipRangesToBeRelaxed	array	Range of IP addresses that can access the scratch orgs
retryOnFailure	boolean	Retry installation of a package on a failed deployment
maxRetryCount	number	Maximum number of times a package should be retried while deploying to a scratchorg, The default is 2
preDependencyInstallationScriptPath	string	Path to a script file that need to be executed before dependent packages are installed in a scratch org
postDeploymentScriptPath	string	Path to a script file that need to be exectued after all the packages (dependencies+repository) is installed
fetchArtifacts	object	Fetch artifacts, to be deployed to scratch orgs, from an artifact registry
fetchArtifacts.artifactFetchScript	string	Path to the shell script containing logic for fetching artifacts from a universal registry, if not using npm
fetchArtifacts.npm	object	Fetch artifacts from NPM registry
fetchArtifacts.npm.scope	string	Scope of the NPM package