Copy connection strings and app settings between Azure web sites.

copy_azure_website_settings.js

var fs = require('fs'),
    webSiteManagement = require('azure-mgmt-website'),
    argv = require('yargs')
        .usage('Usage: $0 --subscriptionId [guid] --pem [path] --sourceWebSpace [string] --sourceSiteName [string] --targetWebSpace [string] --targetWebSite [string]')
        .demand(['subscriptionId', 'pem', 'sourceSiteName', 'targetSiteName'])
        .describe('pem', 'azure account cert export')
        .describe('sourceWebSpace', 'exclude to see list of web spaces')
        .describe('targetWebSpace', 'exclude to see list of web spaces')
        .argv;

var ignoredAppSettings = [
    'WEBSITE_HTTPLOGGING_RETENTION_DAYS',
    'WEBSITE_HTTPLOGGING_CONTAINER_URL',
    'DIAGNOSTICS_AZURETABLESASURL',
    'DIAGNOSTICS_AZUREBLOBCONTAINERSASURL',
    'DIAGNOSTICS_AZUREBLOBRETENTIONINDAYS'
];

var subId = argv.subscriptionId;
var pem = argv.pem;

var wsMgmtClient = webSiteManagement.createWebSiteManagementClient(webSiteManagement.createCertificateCloudCredentials({
    subscriptionId: subId,
    pem: fs.readFileSync(pem).toString()
}));

if (!argv.sourceWebSpace || !argv.targetWebSpace) {
    // Get all the available webspaces under a subscription.
    wsMgmtClient.webSpaces.list(function (err, result) {
        if (err) {
            console.error(err);
        } else {
            console.log('You did not provide --sourceWebSpace or --targetWebSpace, so here is a list...');
            console.info(result);
            return;
        }
    });
} else {
    var sourceWebSpace = argv.sourceWebSpace;
    var sourceSiteName = argv.sourceSiteName;
    var targetWebSpace = argv.targetWebSpace;
    var targetSiteName = argv.targetSiteName;

    wsMgmtClient.webSites.getConfiguration(sourceWebSpace, sourceSiteName, function (err, resultSource) {
        if (err) {
            console.error(err);
        } else {
            console.info('App settings for ' + sourceSiteName + ':');
            console.info(resultSource.appSettings);
            console.log('');
            console.info('Connection strings for ' + sourceSiteName + ':');
            console.info(resultSource.connectionStrings);
            console.log('');
            console.log('');
            wsMgmtClient.webSites.getConfiguration(targetWebSpace, targetSiteName, function (err, resultTarget) {
                if (err) {
                    console.error(err);
                } else {
                    var filteredAppSettings = filterAppSettings(resultSource.appSettings, ignoredAppSettings);
                    console.log('Updating ' + resultSource.connectionStrings.length + ' connection strings and ' + Object.keys(filteredAppSettings).length + '/' + Object.keys(resultSource.appSettings).length + ' app settings for ' + targetSiteName + '...');
                    wsMgmtClient.webSites.updateConfiguration(targetWebSpace, targetSiteName, { appSettings: filteredAppSettings, connectionStrings: resultSource.connectionStrings }, function (err, resultTarget) {
                        if (err) {
                            console.error(err);
                        } else {
                            console.info('Successfully updated app settings and connection strings for ' + targetSiteName + '!');
                        }
                    });
                }
            });
        }
    });
}

function filterAppSettings(appSettings, ignores) {
    var newObj = {};
    for (var key in appSettings) {
        //copy the setting if not ignored
        if (ignores.indexOf(key) == -1) {
            newObj[key] = appSettings[key];
        }
    }

    return newObj;
}