Adding varnish to existing node Dockerfile - docker

Question

I have the following Dockerfile
FROM node:10-alpine
RUN mkdir -p /home/node/app/node_modules && chown -R node:node /home/node/app
WORKDIR /home/node/app
COPY package*.json ./
USER node
RUN npm install
COPY --chown=node:node . .
EXPOSE 8080
CMD [ "node", "app.js" ]
Now I would like to add the Varnish cache and consider this repo docker-varnish how can I organise both together?
UPDATE 1
Once I run this command docker compose build it show following information, but I don't see anything related to varnish
[+] Building 4.6s (11/11) FINISHED
=> [internal] load build definition from Dockerfile 0.1s => => transferring dockerfile: 362B 0.0s => [internal] load .dockerignore 0.1s => => transferring context: 174B 0.0s => [internal] load metadata for docker.io/library/node:10-alpine 4.0s => [internal] load build context 0.1s => => transferring context: 21.58kB 0.0s => [1/6] FROM docker.io/library/node:10-alpine#sha256:dc98dac24efd4254f75976c40bce46944697a110d06ce7fa47e7268470cf2e28
0.0s => CACHED [2/6] RUN mkdir -p /home/node/app/node_modules && chown -R node:node /home/node/app
0.0s => CACHED [3/6] WORKDIR /home/node/app 0.0s => CACHED [4/6] COPY package*.json ./ 0.0s => CACHED [5/6] RUN npm install 0.0s => [6/6] COPY --chown=node:node . . 0.1s => exporting to image 0.1s => => exporting layers 0.0s => => writing image sha256:7eec4ec76dbff93f8b0ebc6e03051331709d5f55a641be379a3e00697eabde70
0.0s => => naming to docker.io/library/test_project_node
Am I doing things right?

Answer 1

You could use docker compose to orchestrate multiple containers, as described here: https://www.varnish-software.com/developers/tutorials/running-varnish-docker/#6-docker-compose .
This uses the official Varnish images, rather than the one you suggested.
Here's an example of such a docker-compose.yml file that is used by the docker compose command:
version: "3"
services:
varnish:
image: varnish:stable
container_name: varnish
volumes:
- "./default.vcl:/etc/varnish/default.vcl"
ports:
- "80:80"
tmpfs:
- /var/lib/varnish:exec
environment:
- VARNISH_SIZE=2G
depends_on:
- "node"
node:
build: ./
container_name: node
ports:
- "8080:8080"
This docker-compose.yml file assumes that it is located in the same folder as the Dockerfile for your Node container. It also assumes that default.vcl is also located in that folder.
Run docker compose up to bootstrap the stack.