docker-lambda/index.js at build-java8 · sdscgithub/docker-lambda · GitHub

History

69 lines (61 loc) · 2.25 KB

Raw

var spawnSync = require('child_process').spawnSync

var ENV_VARS = [

'AWS_REGION',

'AWS_DEFAULT_REGION',

'AWS_ACCOUNT_ID',

'AWS_ACCESS_KEY_ID',

'AWS_SECRET_ACCESS_KEY',

'AWS_SESSION_TOKEN',

'AWS_LAMBDA_FUNCTION_NAME',

'AWS_LAMBDA_FUNCTION_VERSION',

'AWS_LAMBDA_FUNCTION_MEMORY_SIZE',

'AWS_LAMBDA_FUNCTION_TIMEOUT',

'AWS_LAMBDA_FUNCTION_HANDLER',

'AWS_LAMBDA_EVENT_BODY',

'DOCKER_LAMBDA_USE_STDIN',

]

var ENV_ARGS = [].concat.apply([], ENV_VARS.map(function(x) { return ['-e', x] }))

// Will spawn `docker run` synchronously and return stdout

module.exports = function runSync(options) {

options = options || {}

var dockerImage = options.dockerImage || 'lambci/lambda:nodejs4.3'

var handler = options.handler || 'index.handler'

var event = options.event || {}

var taskDir = options.taskDir == null ? process.cwd() : options.taskDir

var cleanUp = options.cleanUp == null ? true : options.cleanUp

var addEnvVars = options.addEnvVars || false

var dockerArgs = options.dockerArgs || []

var spawnOptions = options.spawnOptions || {encoding: 'utf8'}

var returnSpawnResult = options.returnSpawnResult || false

var args = ['run']

.concat(taskDir ? ['-v', taskDir + ':/var/task'] : [])

.concat(cleanUp ? ['--rm'] : [])

.concat(addEnvVars ? ENV_ARGS : [])

.concat(dockerArgs)

.concat([dockerImage, handler, JSON.stringify(event)])

var spawnResult = spawnSync('docker', args, spawnOptions)

if (returnSpawnResult) {

return spawnResult

}

if (spawnResult.error || spawnResult.status !== 0) {

var err = spawnResult.error

if (!err) {

err = new Error(spawnResult.stdout || spawnResult.stderr)

err.code = spawnResult.status

err.stdout = spawnResult.stdout

err.stderr = spawnResult.stderr

}

throw err

}

// If stdio is inherited, stdout/stderr will be null

if (spawnResult.stdout == null) return null

var stdout = spawnResult.stdout.trim().split('\n')

try {

return JSON.parse(stdout[stdout.length - 1])

} catch (err) {

// This should return undefined and not null to indicate that either the

// Lambda function had not output or the output could not be parsed. Both

// cases should be rare and are most likely the result of an issue with the

// Lambda function.

}

docker-lambda/index.js at build-java8 · sdscgithub/docker-lambda · GitHub

Expand file tree

Breadcrumbs

index.js

Latest commit

History

Breadcrumbs

index.js

File metadata and controls