got sysdba?

Example: Use Liquibase with Spring Boot in Kubernetes

Thu, 01 Jun 2023 00:00:00 +0000

As a follow-up to using Using SQLcl + Liquibase in Kubernetes initContainers for Schema Change Management… You can also use Liquibase if your Microservice is a Spring Boot project with the Oracle Database as its data store.

Spring Boot Project - Maven Link to heading

Here’s how it’s done when using Apache Maven to build the image:

POM.XML Link to heading

Include in your pom.xml the following dependency:

Example: Use SQLcl + Liquibase in Kubernetes initContainers

Fri, 26 May 2023 00:00:00 +0000

If your Microservice application running on Kubernetes relies on the Oracle Database, you can take advantage of SQLcl + Liquibase with initContainers for effective Schema Change Management during your deployments.

Lets take a quick look at how this is done:

Secrets Link to heading

First you’ll need two Secrets for connecting to your database, one for Database (Names) Resolution and another for Authentication. I’m using a Secret for a tnsnames.ora file to perform the resolution, but other resolution options are available such as creating an ldap.ora or a ConfigMap of the unencoded connect string.

Experience: Cloud Databases and On-Premises Proxies

Thu, 20 Oct 2022 00:00:00 +0000

As a follow-up on Using Oracle PDBs in Continuous Integration pipelines, I have been struggling with one of those “works on my machine” nightmares. The ask was simple, centralise the ad-hoc testing from the developer machines to an automated CI pipeline using the Oracle Cloud Infrastructure (OCI) Oracle Base Database Service (OBDS) as the backend.

I proceeded:

Replicate the local Database’s version, initialisation, profiles, users, tablespaces, etc. into OBDS
Create an image of the local client setup
Create the PDB based pipeline to automate the tests on a code push

After completing the above, a manual CI run was performed using a subset of the tests focused on the database. The tests results were identical between the local tests and the cloud infrastructure tests… Job Done!

Code: Using Oracle PDBs in Continuous Integration pipelines

Wed, 28 Sep 2022 00:00:00 +0000

When developing against an Oracle Database, developers will often use a local installation or a container image to run their database CI tests against. This widely used practice gives the developer an isolated database testing environment, which they can control, with minimal fuss. However, it is highly unlikely that this Development environment will be equivalent to the Testing (UAT) or Production environment come deployment time.

Differences in the database initialisation parameters, versions and patches (not to mention the data itself) between a local or containerised Development database and UAT/Production databases could lead to unforeseen issues during the software delivery lifecycle. This is not only a headache for the developer, but for the DBA who has to help identify the discrepancies when things don’t work as expected (the ole “but it works on my machine…” dilemma).

about me

Mon, 01 Jan 0001 00:00:00 +0000

I started my career as an Oracle Database Administrator 27 years ago at a small University in the U.S. Midwest. After moving to London, England in 2006 and working as an Oracle DBA in Financial Services, I eventually bypassed the proxies and started working for Oracle directly.

I am a Developer Evangelist at Oracle working with Microservices Architecture and AI utilising the Oracle Database.

Learning via example and hands-on experience has always been my preferred method of study. This blog, accompanied with code, is here to share that experience.