Easy integration of Bluemix services with your applications
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The document outlines IBM's Bluemix, a cloud platform designed for users including novice and enterprise developers, emphasizing rapid application development, integration of various services, and operational efficiency. It details how to leverage resource and operational services within Java web applications, alongside auto-scaling, user authentication, and monitoring tools for better application management. The document highlights Bluemix's foundation in open technology, aimed at simplifying app deployment while providing flexibility and secure integrations.
Easy integration of Bluemix services with your applications
- 1. © 2015 IBM Corporation Easy Integration of Bluemix Services with Your Applications Junjie Cai Bluemix runtime lead architect
- 2. Agenda • Bluemix overview • Using resource services in your Java web app • Using operational services for your Java web app • How it works 1
- 3. New Models of EngagementSystems of Record Data & Transaction Integrity Smarter Devices & Assets • Data & Transactions • App Infrastructure • Virtualized Resources • Expanding Interface Modalities • Big Data and Analytics • Social Networking Next Generation Architectures New models of product & service innovation are emerging 2
- 4. Bluemix was built from the ground up with a user-based and design-centric approach. It addresses these personas and key needs. Our users include novice, born-on-the-cloud, and enterprise developers. Want to compose applications quickly with useful APIs, to avoid tedious backend config. Expect fast time-to-value, simplicity, flexibility, clear documentation. Failing Fast Seconds to Deploy Friction Free Any Language Continuous Integration Mobile Ready Focus on Code Choice of Tools Useful APIs Bluemix Goals: Focus on the Cloud & Enterprise Application Developer 3
- 5. Bluemix: IBM’s Cloud Platform • DevOps • Big Data • Mobile • Watson • Business Analytics Bluemix service categories • Database • Web and application • Security • Internet of Things • Integration • Containers • Virtual Machines Developer experience • Rapidly deploy and scale applications in any language. • Compose applications quickly with useful APIs and services and avoid tedious backend config. • Realize fast time-to-value with simplicity, flexibility and clear documentation. Enterprise capability • Securely integrate with existing on-prem data and systems. • Choose from flexible deployment models. • Manage the full application lifecycle with DevOps. • Develop and deploy on a platform built on a foundation of open technology. Built on a foundation of open technology. Build, run, scale, manage, integrate & secure applications in the cloud 4
- 6. Bluemix embraces Cloud Foundry as an open source Platform as a Service and extends it with IBM, third party, and community built runtime and services. How does Bluemix work? 5
- 7. The plain way to use a service in Bluemix Step 1: Create & Bind the service • Command line – cf marketplace to see available services – cf create-service to create a service instance – cf bind-service to bind the service instance to your application – cf restart, or cf restage/push again • Web console (see demo) – View service endpoint and credentials from VCAP_SERVICES environment variable: 6
- 8. The plain way to use a service in Bluemix (cont’) Step 3: Read the credentials & invoke its API Step 2: Provide the driver jar in your application Drawbacks: • Verbose code • No connection pooling 7
- 9. There is an easier way to use these services Modern “resource” Operational services Java EE standard “resource” 8
- 10. The Java EE way – Sample code for using SQLDB 9 public class TestServlet extends HttpServlet { @Resource (name = "jdbc/mydb") private DataSource db; ... protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // Alternatively, use InitialContext lookup DataSource lookup = (DataSource) new InitialContext().lookup("jdbc/mydb"); ... } “mydb” is the name of the service instance you create in Bluemix That’s it! All familiar code, no changes required in order to make it work in cloud! • No need for a server.xml. Appropriate stanzas automatically generated. • Don’t need to read VCAP_SERVICES • Don’t need to provide a driver
- 11. Using the MQLite service – your familiar way again! Develop responsive, scalable applications with a fully managed messaging provider in the cloud. Quickly integrate with application frameworks through easy to use APIs. 10 public class TestServlet extends HttpServlet { @Resource (name = "jms/emq") private ConnectionFactory cf; ... protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // Alternatively, use InitialContext lookup ConnectionFactory lookup = (ConnectionFactory) new InitialContext().lookup(“jms/myemq"); ... }
- 12. More “resource” services accessible in the same way 11 MongoDB is an open source document database. Improve the performance & user experience of web applications by retrieving information from fast, managed, in-memory caches, instead of relying entirely on slower disk-based databases. Cloudant NoSQL DB provides access to a fully managed NoSQL JSON data layer that's always on. This service is compatible with CouchDB, and accessible through a simple to use HTTP interface for mobile and web application models. 11
- 13. Cloudant public class TestServlet extends HttpServlet { @Resource (name = “cloudant/mycloudantdb") private CouchDbInstasnce db; ... protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // Alternatively, use InitialContext lookup CouchDbInstance db = (CouchDbInstance) new InitialContext().lookup("cloudant/mycloudantdb"); CouchDbConnector dbc = _db.createConnector(DATABASE, true); CouchDocument dbentry = new CouchDocument(); dbentry.setContent("testEntry"); dbc.create(dbentry); } “mycloudantdb” is the name of the service instance you create in Bluemix 12
- 14. DataCache public class TestServlet extends HttpServlet { @Resource (name = “wxs/myGrid") private ObjectGrid og; ... protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // Alternatively, use InitialContext lookup ObjectGrid og = (ObjectGrid) new InitialContext().lookup(“wxs/myGrid"); ... } “myGrid” is the name of the service instance you create in Bluemix 13
- 15. MongoDB import com.mongodb.DB; public class TestServlet extends HttpServlet { @Resource (name = “cloudant/mymongo") private DB db; ... protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // Alternatively, use InitialContext lookup db = (DB) InitialContext().lookup("cloudant/mymongo"); ... } “mymongo” is the name of the service instance you create in Bluemix 14
- 17. Session Cache • Improve application resiliency by storing session state information across many HTTP requests. • Enable persistence HTTP sessions for your application & seamless session recovery in event of an application failure. 16
- 18. Auto-scaling • The Auto-Scaling for Bluemix service enables you to automatically increase or decrease the compute capacity of your application. The number of application instances are adjusted dynamically based on the Auto-Scaling policy you define. 17 Metric name Description Supported application type CPU The utilization percentage of the CPU. All Memory The usage percentage of the memory. All JVM heap The usage percentage of the JVM heap memory. Liberty for Java Throughput The number of the processed requests per second. Liberty for Java
- 19. Monitoring & Analytics • Gain the visibility and control you need over your application. • Determine the response time your users see, understand the performance and availability of the application components, and leverage analytics to keep your application up and performing well. 18
- 20. Single Sign On • Implement user authentication for your web and mobile apps quickly, using simple policy-based configurations. • Secure apps with confidence, not a lot of coding • You choose the identity sources and we do the rest 19
- 21. New Relic • New Relic is the all-in-one web app performance tool that lets you see performance from the end user experience, through servers, and down to the line of code. 20
- 22. Behind the scene – Auto-Configuration Service plugin framework • Allow service providers to customize runtime configuration during application staging, triggered by the presence of a service binding • Available in both IBM Liberty & Node.js buildpacks 21
- 23. Users can also turn off Auto-Configuration and get the control Disable individual services’ auto-configuration using the services_autoconfig_excludes environment variable Use a server package or server folder to take full control of the server configuration Connection info in runtime-vars.xml as variables Provide a server.xml that reads these variables Push a server package or folder 22
- 24. Server configuration variables Variables available via runtime-vars.xml (generated on cloud) server.xml (you provide) 23
- 25. server.xml ... <dataSource id="db2-mydb" jdbcDriverRef="db2-driver" jndiName="jdbc/mydb" statementCacheSize="30" transactional="true"> <properties.db2.jcc id="db2-mydb-props" databaseName="${cloud.services.mydb.connection.db}" user="${cloud.services.mydb.connection.username}" password="${cloud.services.mydb.connection.password}" portNumber="${cloud.services.mydb.connection.port}" serverName="${cloud.services.mydb.connection.host}"/> </dataSource> ... Import javax.sql.DataSource; public class MyServlet extends HTTPServlet { @Resource(name=“jdbc/somedb”) private DataSource myDataSource; … or …. InitialContext ctx = new InitialContext(); DataSource ds = (DataSource) ctx.lookup(“jdbc/somedb”); } 1 2 3 • Allows the developer to use a JNDI name different from the one defined in server.xml • Works only if there is a single service instance defined in server.xml. Any/all bindings will be auto-wired to it. Java EE Resource Auto-wiring for some IBM created Bluemix services 24
- 26. 25 Security Services Web and application services Cloud Integration Services Mobile Services Database services Big Data services Internet of Things Services Watson Services DevOps Services Summary • Use the rich set of Bluemix services as building blocks to quickly stand up your applications • Stick to the “standard” way to access these “resource” services, transparent to the location • Consume operational services with just “one click”
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