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I'm currently working on a project using NestJS, Prisma and PostgreSQL in a dockerized environment. I have a service for api_server and another one for running postgres. I want to run migration before the api_server starts. So I tried to use this in the Dockerfile of api_server

FROM node:16.13.0-alpine
# Set user and working directory
# Working directory needs to be under /home/node
USER node
WORKDIR /home/node/server
COPY package.json .
# Install node dependencies
RUN yarn
COPY . ./
RUN yarn generate
# the original migration command is kept on the package.json
RUN yarn migrate
EXPOSE 4000
CMD ["yarn", "start:dev"]

But it seems that during the build step of images, none of the services is up. So it throws an error because it can not establish a database connection. What could be a good solution to this problem?

Naimul Haque
  • 13
  • 2

1 Answers1

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Yes, you are right, service is not up. Best Way for me is add a healthcheck.

Take a look at Docker Compose wait for container X before starting Y

DerWashbr
  • 16