ravishankarhassain

I am a Java professional with extensive experience in Enterprise Application Integration from 2010. I am working as SOA, Middleware Application and EAI designer, developer using Java and open source technologies. I am interested in designing and developing applications to provide better automated and user interactive system.

Technologies:

Micro Service Architecture - Openshift 3.x, Docker, Kubernetes, Spring Boot, Quarkus

Service Oriented Architecture - Apache CXF, Webservices, RESTful, SOAP, WSDL, Apache Camel, Apache Servicemix ESB, Apache ActiveMQ, JBossFuse, JBoss A- MQ, JBoss Drools for creating Business Rules via DRLs, Rule Flow, BPMN, JBoss Guvnor, Fuse ESB, FuseMQ, Fuse Fabric, Fuse FMC, HawtIO, OSGi based modularization,

ravishankarhassain

====================
Dockerfile commands 
====================

COPY --> Used to copy files, folder from local dir
ADD --> COPY + can download resources from http url & can also unpack the resources from archive like tar 

Best Practise is to use COPY

ravishankarhassain

================
Configuration
================

limits-service.maximun=1000
limits-service.minimun = 100

@Component
@ConfigurationProperties("limits-service")
public class Configuration {

ravishankarhassain

====================
Definition 
====================

Microservices are small, loosely coupled, highly cohensive, self contained application / services that can be deployed individiually. 

Each microservices should be resonsible for a single function / process. They can fail independently from each other and when a microservice fails, only a single process / function in the system should become unavialble, while the rest of the system remains unaffected.

====================
Princicples 

ravishankarhassain

https://github.com/in28minutes/spring-microservices/blob/master/02.restful-web-services/2.3.1.RELEASE-upgrade.md

=============================================
Exception Handling
=============================================

@ControllerAdvice
@RestController
public class CustomizedResponseEntityExceptionHandler extends ResponseEntityExceptionHandler {

ravishankarhassain

package com.camel.routes;

import org.apache.camel.Exchange;
import org.apache.camel.LoggingLevel;
import org.apache.camel.builder.RouteBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class HTTPSConnectivityRoute extends RouteBuilder {
	

ravishankarhassain

cat: /var/run/sftp-users.conf: No such file or directory
FATAL: No users provided!
Add users as command arguments, STDIN or mounted in /etc/sftp-users.conf
Syntax: user:pass[:e][:uid[:gid]]...
Use --readme for more information and examples.

ravishankarhassain

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>com.sample</groupId>
		<artifactId>service</artifactId>
		<version>0.0.1-SNAPSHOT</version>
	</parent>
	<groupId>com.sample.service</groupId>
	<artifactId>customer</artifactId>

ravishankarhassain

D:\dev\jbdevstudio-9.0.0\workspace\poc\fuse\camel-master-demo>mvn dependency:tree
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Camel Master Demo 0.0.2-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ camel-master-demo ---
[INFO] com.cts.eas.ipm:camel-master-demo:jar:0.0.2-SNAPSHOT
[INFO] +- org.apache.camel:camel-core:jar:2.15.1.redhat-621084:compile

ravishankarhassain

package com.cts.eas.ipm.os.k8s;

import javax.inject.Named;

import io.fabric8.kubernetes.api.model.ContainerBuilder;
import io.fabric8.kubernetes.api.model.PodTemplateSpecBuilder;
import io.fabric8.kubernetes.api.model.VolumeMount;
import io.fabric8.kubernetes.generator.annotation.KubernetesModelProcessor;

@KubernetesModelProcessor("kubernetes.json")