Tag Archives: PostgreSQL

Running a PostgreSQL instance ad-hoc for testing is not always as bootstraping as it should be. This blog will run a PostgreSQL instance that connects to your workstation’s network and instead of using one of the popular tools like dbeaver we shall use the client that comes with the instance. Also we shall run a bootstrap script to have some ...

Testcontainers is a Java library that allows integrating Docker containers in JUnit tests with ease. In a Containerized World, there is little sense to complicate the tests configuration with embedded databases and services. Instead, use run your services in Docker and let the Testcontainers manage this for you. In this blog post you will learn how to configure Testcontainers to ...

In this blog post you will learn how to configure Spring Boot application with PostgreSQL for running with Docker Compose. This blog post covers: Spring Boot application Dockerfile configuration with clean separation between dependencies and resourcesDocker Compose configuration for running the application with PostgreSQL Prerequisites DockerJava 13Terminalhttpie (or curl) Application Generate the Maven based Spring Boot application with Spring Web, ...

Testcontainers is a Java library that allows integrating Docker containers in JUnit tests with ease. In a Containerized World, there is little sense to complicate the tests configuration with embedded databases and services. Instead, use run your services in Docker and let the Testcontainers manage this for you. So if you are need Redis, MongoDB or PostgreSQL in your tests ...

Previously we set up two EntityManagers in the same application. One for the reads and one for the writes. Now it’s time to create our read repository. The read only repository will use the secondary read only EntityManager. In order to make it a read only repository, it is essential not to have any save and persist actions. 01 02 ...

Our previous setup works as expected. What we shall do now is to get one step further and configure two separate entity managers without affecting the functionality we achieved previously. The first step would be to set the default entity manager configuration to a primary one.This is the first step 01 02 03 04 05 06 07 08 09 10 ...

In our previous post we set up multiple PostgreSQL instances with the same data.Our next step would be to configure our spring project by using the both servers. As stated previously we shall use some of the code taken from the Spring Boot JPA post, since we use exactly the same database. This shall be our gradle build file 01 ...

In this post I am going to show a few steps to deploy and run PostgreSQL database in a K8S cluster on OKE.The deployment is going to be based on postgres:11.1 Docker image which requires a few environment variables to be configured: POSTGRES_DB (database name), POSTGRES_USER and POSTGRES_PASSWORD. I am going to store values of these variables in K8S ConfigMap ...

Imperative code eats threads at the pace of incoming requests while Software is eating the world. This post discusses the assumptions for reactive programming on the JVM and what this means for integrations – in particular, relational databases. The motivation to come up with a post is the constant increase in reactive programming adoption while some major building blocks are not yet available ...