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index.js
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index.js
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'use strict';
class ServerlessEphemeralStorage {
constructor(serverless, options, loggingModule) {
this.serverless = serverless;
// set provider 'aws'
this.provider = this.serverless.getProvider('aws');
if (loggingModule && loggingModule.log) {
this.log = loggingModule.log;
} else if (serverless.cli.log) {
this.log = {
info: (message) => {
serverless.cli.log(message);
}
};
} else {
this.log = {
info: (message) => {
console.log(message);
}
};
}
// Default configValidationMode is 'warn'
this.serverless.service.configValidationMode = 'error'
// Create schema for your properties.
if (
this.serverless.configSchemaHandler &&
this.serverless.configSchemaHandler.defineFunctionProperties
) {
this.serverless.configSchemaHandler.defineFunctionProperties(
'aws',
{
properties: {
ephemeralStorageSize: { type: 'integer', minimum: 512, maximum: 10240 }
},
},
);
}
this.options = options;
this.hooks = {
'package:compileFunctions': compileFunctions.bind(this)
};
function compileFunctions(plugin = this) {
plugin.log.info('Setting EphemeralStorage size for all lambda function');
let functions = plugin.serverless.service.getAllFunctions();
functions.forEach(funcName => {
const functionLogicalId = plugin.provider.naming.getLambdaLogicalId(funcName);
const cfTemplate = plugin.serverless.service.provider.compiledCloudFormationTemplate;
const functionResource = cfTemplate.Resources[functionLogicalId]
const functionObject = plugin.serverless.service.getFunction(funcName);
functionObject.package = functionObject.package || {};
if (functionObject.ephemeralStorageSize) {
functionResource.Properties.EphemeralStorage = {
Size: functionObject.ephemeralStorageSize,
};
}
});
}
}
}
module.exports = ServerlessEphemeralStorage;