@vroomlabs/gsdk-deploy
Version:
Google Cloud deployment script for kubernetes clusters using Global Load Balancer
103 lines (95 loc) • 4.44 kB
JavaScript
;
/******************************************************************************
* MIT License
* Copyright (c) 2017 https://github.com/vroomlabs
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Created by rogerk on 7/4/17.
******************************************************************************/Object.defineProperty(exports,'__esModule',{value:true});var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if('value'in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor)}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor}}();function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError('Cannot call a class as a function')}}var
BackendConfig=exports.BackendConfig=function(){
/**
* @param {Configuration} config
* @param {object[]} clusters
* @param {string} [healthCheck]
*/
function BackendConfig(config,clusters,healthCheck){_classCallCheck(this,BackendConfig);
this.serviceName=config.name;
this.hostname=config.current.host;
this.name=this.hostname.replace(/\./g,'-').replace(/[^a-z0-9-]+/gi,'-');
this.nodePort=config.getNodePort();
this.timeoutSec=config.current.timeoutSec;
this.livenessProbe=config.current.livenessProbe;
this.enableCDN=config.current.enableCDN;
this.healthCheck=healthCheck||null;
this.clusters=clusters;
}_createClass(BackendConfig,[{key:'getInstanceGroups',value:function getInstanceGroups()
{var _this=this;
var all=[];
Object.keys(this.clusters).
forEach(function(name){
_this.clusters[name].instanceGroups.forEach(function(g){return all.push(g)});
});
return all;
}
/**
* Returns the backend configuration
*/},{key:'getBackendConfig',value:function getBackendConfig()
{
if(!this.healthCheck){
throw new Error('healthCheck was not provided.');
}
var backends=this.getInstanceGroups().
map(function(group){return{group:group,balancingMode:'UTILIZATION',maxUtilization:0.8}});
return{
name:this.name,
description:'Generated backend for '+this.serviceName,
port:this.nodePort,
portName:this.serviceName+'-port',
protocol:'HTTPS',
enableCDN:this.enableCDN,
backends:backends,
healthChecks:[this.healthCheck],
timeoutSec:this.timeoutSec||150};
}
/**
* Returns null, or an updated configuration if one is needed
* @param {object} existing backend service definition
*/},{key:'getBackendUpdate',value:function getBackendUpdate(
existing){
var desired=this.getBackendConfig();
var updateFields=[];
// TEST field delta
Object.keys(desired).forEach(function(fld){
if(!Array.isArray(desired[fld])&&desired[fld]!==existing[fld]){
updateFields.push(fld);
}
});
if(JSON.stringify(desired.healthChecks)!==JSON.stringify(existing.healthChecks)){
updateFields.push('healthChecks');
}
var v1=JSON.stringify((existing.backends||[]).map(function(b){return b.group}).sort());
var v2=JSON.stringify((desired.backends||[]).map(function(b){return b.group}).sort());
if(v1!==v2){
updateFields.push('backends');
}
// UPDATE if any modified
if(updateFields.length===0){
return null;
}
return Object.assign({},existing,desired);
}}]);return BackendConfig}();