docker-compose build with new tag - docker

Question

I have a docker-compose which looks like:
version: '3.2'
services:
jobsaf-server:
build:
context: ./application
dockerfile: Dockerfile.production
container_name: jobsaf-server
env_file:
- ./application/.env
tty: true
depends_on:
- "redis"
- "mongo"
links:
- mongo
- redis
volumes:
- ./application/server:/var/www/app/jobsaf-website/server
- ./application/public/assets:/var/www/app/jobsaf-website/public/assets
- ./application/uploads:/var/www/app/jobsaf-website/uploads
- ./application/sitemaps:/var/www/app/jobsaf-website/sitemaps
- ./application/rss:/var/www/app/jobsaf-website/rss
- "/etc/timezone:/etc/timezone:ro"
- "/etc/localtime:/etc/localtime:ro"
nginx:
image: nginx:stable
tty: true
env_file:
- ./.env
environment:
- NGINX_HOST=${APP_HOST}
- NGINX_PORT=${APP_PORT}
- PUID=1001
- PGID=1001
- TZ=Asia/Kabul
links:
- jobsaf-server
volumes:
- ./nginx/default.conf:/etc/nginx/conf.d/default.conf
- ./nginx/ssl/star_jobs_af.pem:/etc/ssl/star_jobs_af.pem
- ./nginx/ssl/jobs.af.key:/etc/ssl/jobs.af.key
- ./nginx/ssl/star_jobs_af.crt:/etc/ssl/star_jobs_af.crt
ports:
- "80:80"
- "443:443"
mongo:
image: mongo:latest
container_name: mongo
tty: true
env_file:
- ./.env
volumes:
- "db-data:/data/db"
environment:
- MONGO_INITDB_ROOT_USERNAME=${DB_USER}
- MONGO_INITDB_ROOT_PASSWORD=${DB_PASS}
- MONGO_INITDB_DATABASE=admin
ports:
- "0.0.0.0:27017:27017"
redis:
image: redis
container_name: redis
tty: true
volumes:
db-data:
# - /data/db
networks:
front-tier:
back-tier:
It build jobsaf-server:latest by default.
what I want is to keep the old tag and build the new one.
let say, while building the images I should pass something similar to this
docker-compose -f docker-compose.production --tag=1.0.1
the above command should build for me and image with tag jobsaf-server:1.0.1
Is it really possible to have such result?
Or is there any alternative solution for it
Thanks in advance.
Note: I want to keep the old image, in case if my new image has issue, then I can use the old image.

Answer 1

version: '3.2'
services:
jobsaf-server:
image: jobsaf-server:${TAG}
build:
context: ./application
dockerfile: Dockerfile.production
...
The best way to supply the tag is with a .env file like this:
TAG=1.0.1
Docker-compose will pick this up automatically.

Answer 2

From #Mihai suggestion following steps worked for me, incase if someone else needed.
version: '3.2'
services:
jobsaf-server:
image: jobsaf-server:${TAG}
build:
context: ./application
dockerfile: Dockerfile.production
To build:
Run TAG=1.0 docker-compose build it will create jobsaf-server:1.0
To Up:
Run TAG=1.0 docker-compose up -d
To down:
Run TAG=1.0 docker-compose down
Note: we can add TAG to .env file also by default.