Permission denied when running docker-compose up on Mac OS - docker

Question

I'm having some issues with permissions in my docker-compose, Dockerfile scripts.
This is the error I have when running docker-compose up:
As you can see I have a "Permission denied" error that prevents my API to be up and running.
This is what my docker-compose.yml file looks like (I skipped the database part because it's not relevant to the problem I have here):
version: '3'
services:
api:
build:
context: .
dockerfile: Dockerfile
ports:
- "1338:1337"
links:
- postgres
environment:
- DATABASE_URL=postgres://postgres:postgres#postgres:5432/postgres
- POSTGRES_PASSWORD=postgres
volumes:
- ./:/usr/src/app
- /usr/src/app/node_modules
command: [
"docker/api/wait-for-postgres.sh",
"postgres",
"docker/api/start.sh"
]
And my Dockerfile:
FROM node:14
RUN apt-get update && apt-get install -y postgresql-client
WORKDIR /usr/src/app
COPY package.json /usr/src/app
RUN npm install
RUN npm install -g nodemon
COPY . /usr/src/app
EXPOSE 1337
What I've tried so far is changing the permissions and switching to root user inside my container but it didn't change a thing (still have the same error as the one shown in the screenshot above).
FROM node:14
RUN apt-get update && apt-get install -y postgresql-client
WORKDIR /usr/src/app
COPY package.json /usr/src/app
RUN npm install
RUN npm install -g nodemon
COPY . /usr/src/app
USER root
RUN chmod +x docker/api/start.sh
RUN chmod +x docker/api/wait-for-postgres.sh
EXPOSE 1337
EDIT:
Content of wait-for-postgres.sh script:
#!/bin/sh
# wait-for-postgres.sh
set -e
host="$1"
shift
until PGPASSWORD=$POSTGRES_PASSWORD psql -h "$host" -U "postgres" -c '\q'; do
>&2 echo "Postgres is unavailable - sleeping"
sleep 10
done
>&2 echo "Postgres is up - executing command"
exec "$#"
Any thoughts on this ? Thanks for your help !