Using A Database for Unit Testing With Docker in GitLab Pipeline. Recently I had the opportunity to build a CI pipeline for various microservices using GitLab. The issue comes when it’s time to run the unit test, as some of the projects does not use a mocker and would want to connect to a test DB.
Recently I had the opportunity to build a CI pipeline for various microservices using GitLab. The issue comes when it’s time to run the unit test, as some of the projects does not use a mocker and would want to connect to a test DB. Thankfully there is a way for us to generate a temporary database for testing purposes.
In this scenario, I will be using GitLab dindDocker-In-Docker (dind) to build, test and deploy the image.
Let’s start with an example
Dockerfile, for this I will assume we are using a simple NodeJs project
FROM node:14-alpine AS node ## Builder stage FROM node AS builder ENV APP_PORT 8080 WORKDIR /app COPY . . ## Copy .env configuration COPY .env.test ./.env ## Install dependencies RUN npm ci ## Port public untuk akses EXPOSE 8080 ## Run development server CMD [ "npm", "run", "dev" ]
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