Computing
Add ELK APM agent in Java project
Even APM agent can add parameter -javaAgent, but it will more flexible if embed in jar file. This demo will show how to add ELK APM agent inside Java gradle project.
Programming
Computing
Add cutom opentracing trace in Java project for Elastic stack
Opentracing is one of the open protocol for distribute tracing between microservices. With APM, it helps to identify service dependency and target bottom-neck during performance tuning. Even it merged to OpenTelmetry in recent years but […]
Programming
[Tools] Kubernetic
When maintain Kubernetes, mostly we need to use kubectl to get result and execute yaml. It is ok for developer as it provide the flexibilty to do what they need. However, for operator, it might […]
Computing
[Spring] Enable logging to ELK with Log4J2 and Sprint cloud sleuth
To enable ELK logging, mostly it will use logback as logging library. However, when migrate existing application, eliminate dependency change is one of the factor to ensure application stability. In this demo, we will use […]
Computing
[Spring] Resolve issue on no trace Id and spin Id logged
Spring Cloud Sleuth is one of the spring cloud component which used to corelate log between different service. It is useful when tracking problem and it can draw the full picture from start to end. […]
Computing
[Docker] Enable IntelliJ debug Java application with docker
Mostly package will deliver in container image, and for testing / debugging on dockerfile, we will run it locally. However, it cannot be debug easily. So we need to alter configuration to enable it. In […]
Computing
[Java] Create custom logging aspect with Springboot AOP
Aspect-oriented Programming (AOP) enable developer design application with more “module-ize”. This example will show how to use AOP to log method execution in SpringBoot AOP.
DevOps
[Java] Dependency management in Gradle
Dependency management is one of the topic in package management to ensure dependent library (jar / dll / etc) is no interference between each other and it caused compatibility problem. Besides, it can detect vulnerability […]
Computing
[Java] Set auto reconnect in Spring data JPA
To ensure service availability, Most application nee to restart service to resume. However, auto reconnect is a must requirement to ensure it can self-heal. For Spring data JPA, it can be done without alter code.
JavaScript
[PostMan] Execute HTTP request in Pre-execute script
For web API integration test, some of them might need to execute some tasks as parameter for target API. In this case, pre-request script is helpful to collect data and make some data massage before […]