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// Copyright (c) 2012-2018, Matt Godbolt
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
const AWS = require('aws-sdk'),
logger = require('./logger').logger;
class InstanceFetcher {
constructor(properties) {
this.ec2 = new AWS.EC2({region: properties('region')});
this.tagKey = properties('tagKey');
this.tagValue = properties('tagValue');
}
onInstances(result) {
let allInstances = [];
result.Reservations.forEach(res => allInstances = allInstances.concat(res.Instances));
return allInstances.filter(reservation => {
if (reservation.State.Name !== "running") return false;
return reservation.Tags.some(t => t.Key === this.tagKey && t.Value === this.tagValue);
});
}
getInstances() {
return this.ec2.describeInstances()
.promise()
.then(result => this.onInstances(result));
}
}
let awsConfigInit = false;
let awsConfig = {};
let awsProps = null;
function loadAwsConfig(properties) {
let region = properties('region');
if (!region) {
return Promise.resolve({});
}
let ssm = new AWS.SSM({region: region});
const path = '/compiler-explorer/';
return ssm.getParametersByPath({
Path: path
})
.promise()
.then((response) => {
const map = {};
response.Parameters.forEach((response) => {
map[response.Name.substr(path.length)] = response.Value;
});
logger.info("AWS info:", map);
return map;
})
.catch((error) => {
logger.error("Failed to get AWS info: " + error);
});
}
function initConfig(properties) {
awsConfigInit = true;
awsProps = properties;
return loadAwsConfig(properties).then(map => awsConfig = map);
}
function getConfig(name) {
if (!awsConfigInit)
throw new Error("Reading AWS config before it's loaded");
return awsConfig[name] || awsProps(name);
}
module.exports = {
InstanceFetcher: InstanceFetcher,
initConfig: initConfig,
getConfig: getConfig
};