I am farely new to docker and docker-compose. I tried to spin up a few services using docker which contain of a nodejs (Nest.js) api, a postgres db and pgadmin. Without the API (nodejs) app beeing dockerized I could connect to the docker database containers, but now that I also have dockerized the node app, it is not connecting anymore and I am clueless why. Is there anything wrong with the way I have set it up?
Here is my docker-compose file
version: "3"
services:
nftapi:
env_file:
- .env
build:
context: .
ports:
- '5000:5000'
depends_on:
- postgres
volumes:
- .:/app
- /app/node_modules
networks:
- postgres
postgres:
container_name: postgres
image: postgres:latest
ports:
- "5432:5432"
volumes:
- /data/postgres:/data/postgres
env_file:
- docker.env
networks:
- postgres
pgadmin:
links:
- postgres:postgres
container_name: pgadmin
image: dpage/pgadmin4
ports:
- "8080:80"
volumes:
- /data/pgadmin:/root/.pgadmin
env_file:
- docker.env
networks:
- postgres
networks:
postgres:
driver: bridgeThis is the nodejs app Dockerfile which builds successfully and in the logs I see the app is trying to connect to the databse but it cant (no specific error) just that it doesnt find the db.
# Image source
FROM node:14-alpine
# Docker working directory
WORKDIR /app
# Copying file into APP directory of docker
COPY ./package.json /app/
RUN apk update && \
apk add git
# Then install the NPM module
RUN yarn install
# Copy current directory to APP folder
COPY . /app/
EXPOSE 5000
CMD ["npm", "run", "start:dev"]I have 2 env files in my projecs root directory.
- .env
- docker.env
As mentioned above, when I remove the "nftapi" service from docker and run the nodejs up with a simple npm start it is connecting to the postgres container.
TypeOrmModule.forRoot({
type: 'postgres',
host: process.env.POSTGRES_HOST,
port: Number(process.env.POSTGRES_PORT),
username: process.env.POSTGRES_USER,
password: process.env.POSTGRES_PASSWORD,
database: process.env.POSTGRES_DB,
synchronize:true,
entities: ['dist/**/*.entity{.ts,.js}'],
}),The host from the .env file that is used in the typeorm module is localhost
