Deploy nexus repository OSS v3 with docker ( traefik v2 and docker-compose)

nexus-v3-traefik-v2-docker-compose.yml

#1. Create a volume directory for nexus-data. I used /nexus-data directory which is mount point of the second disk 
# mkdir /nexus-data
# chown -R 200 /nexus-data  #nexus user id 200 in dockerfile
#Create a letsencrypt directory to store traefik acme.json file which keeps SSL certs
# mkdir -p /docker/letsencrypt

#Change NEXUS.mydomain.com with your domain name.
#Change acme.email=MYEMAIL@gmail.com

# cat docker-compose.yml 

version: '3.3'

services:
  traefik:
    image: traefik:v2.2
    container_name: traefik
    restart: always
    command:
      - "--log.level=DEBUG"
      - "--api.insecure=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=true"
      - "--entrypoints.web.address=:80"
      - "--entrypoints.websecure.address=:443"
      - "--entrypoints.web.http.redirections.entryPoint.to=websecure"
      - "--entrypoints.web.http.redirections.entryPoint.scheme=https"
      - "--certificatesresolvers.myresolver.acme.httpchallenge=true"
      - "--certificatesresolvers.myresolver.acme.httpchallenge.entrypoint=web"
      - "--certificatesresolvers.myresolver.acme.email=MYEMAIL@gmail.com"
      - "--certificatesresolvers.myresolver.acme.storage=/letsencrypt/acme.json"
    ports:
      - 80:80
      - 443:443
    networks:
      - nexus
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - "/docker/letsencrypt:/letsencrypt"

  nexus:
    container_name: nexus
    image: sonatype/nexus3
    restart: always
    networks:
      - nexus
    volumes:
    - /nexus-data:/nexus-data
    labels:
      - traefik.port=8081
      - traefik.http.routers.nexus.rule=Host(`NEXUS.mydomain.com`)
      - traefik.enable=true
      - traefik.http.routers.nexus.entrypoints=websecure
      - traefik.http.routers.nexus.tls=true
      - traefik.http.routers.nexus.tls.certresolver=myresolver

networks:
  nexus:
    external: true