How to continuously copy files into docker - docker

Question

I am a docker newbie and i can't rly figure out how the changes that will be made to my working directory will be continuously copied to the docker container. Is there a command that copies all my changes to the docker container all the time ?
Edit : i added docker file and docker compose
My docker file
FROM scratch
ADD centos-7-x86_64-docker.tar.xz /
LABEL \
org.label-schema.schema-version="1.0" \
org.label-schema.name="CentOS Base Image" \
org.label-schema.vendor="CentOS" \
org.label-schema.license="GPLv2" \
org.label-schema.build-date="20201113" \
org.opencontainers.image.title="CentOS Base Image" \
org.opencontainers.image.vendor="CentOS" \
org.opencontainers.image.licenses="GPL-2.0-only" \
org.opencontainers.image.created="2020-11-13 00:00:00+00:00"
RUN yum clean all && yum update -y && yum -y upgrade
RUN yum groupinstall "Development Tools" -y
RUN yum install -y wget gettext-devel curl-devel openssl-devel perl-devel perl-CPAN zlib-devel && wget https://github.com/git/git/archive/v2.26.2.tar.gz\
&& tar -xvzf v2.26.2.tar.gz && cd git-2.26.2 && make configure && ./configure --prefix=/usr/local && make install
# RUN mkdir -p /root/.ssh && \
# chmod 0700 /root/.ssh && \
# ssh-keyscan github.com > /root/.ssh/known_hosts
# RUN ssh-keygen -q -t rsa -N '' -f /id_rsa
# RUN echo "$ssh_prv_key" > /root/.ssh/id_rsa && \
# echo "$ssh_pub_key" > /root/.ssh/id_rsa.pub && \
# chmod 600 /root/.ssh/id_rsa && \
# chmod 600 /root/.ssh/id_rsa.pub
RUN ls
RUN cd / && git clone https://github.com/odoo/odoo.git \
&& cd odoo \
&& git fetch \
&& git checkout 9.0
RUN yum install python-devel libxml2-devel libxslt-dev openldap-devel libtiff-devel libjpeg-devel libzip-devel freetype-devel lcms2-devel \
libwebp-devel tcl-devel tk-devel python-pip nodejs
RUN pip install setuptools==1.4.1 beautifulsoup4==4.9.3 pillow openpyxl==2.6.4 luhn gmp-devel paramiko==1.7.7.2 python2-secrets cffi pysftp==0.2.8
RUN pip install -r requirements.txt
RUN npm install -g less
CMD ["/bin/bash","git"]
My docker-compose
version: '3.3'
services:
app: &app
build:
context: .
dockerfile: ./docker/app/Dockerfile
container_name: app
tty: true
db:
image: postgres:9.2.18
environment:
- POSTGRES_DB=test
ports:
- 5432:5432
volumes:
- ./docker/db/pg-data:/var/lib/postgresql/data
odoo:
<<: *app
command: python odoo.py -w odoo -r odoo
ports:
- '8069:8069'
depends_on:
- db

Answer 1

If I understand correctly you want to mount a path from the host into a container which can be done using volumes. Something like this would keep the folders in sync which can be useful for development
docker run -v /path/to/local/folder:/path/in/container busybox