LetsEncrypt JSON file is not being stored

Traefik Traefik v2 (latest)
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3 
version: "3.7"
services:
  traefik:
    image: traefik:v2.0.0-rc2
    ports:
      - target: 80
        published: 80
        protocol: tcp
        mode: host
      - target: 443
        published: 443
        protocol: tcp
        mode: host
      - target: 8080
        published: 44444
        protocol: tcp
        mode: host
    command:
      - --global.checknewversion=false
      - --global.sendanonymoususage=false

      - --accesslog
      - --api
      - --ping

      - --certificatesresolvers.default.acme.httpchallenge.entrypoint=http
      - --certificatesResolvers.default.acme.email=support@trajano.net
      - --certificatesResolvers.default.acme.storage=/letsencrypt/acme.json

      - --certificatesresolvers.staging.acme.caServer=https://acme-staging-v02.api.letsencrypt.org/directory
      - --certificatesresolvers.staging.acme.httpchallenge.entrypoint=http
      - --certificatesResolvers.staging.acme.email=support@trajano.net
      - --certificatesResolvers.staging.acme.storage=/letsencrypt/staging.json

      - --entrypoints.http.address=:80
      - --entrypoints.https.address=:443

      - --providers.docker.endpoint=tcp://daemon:2375
      - --providers.docker.exposedByDefault=false
      - --providers.docker.swarmMode=true

      - --tracing.zipkin.httpEndpoint=http://zipkin:9411/api/v2/spans
      - --tracing.zipkin.samespan=true

      # - --log.level=INFO
      - --log.level=DEBUG
    # healthcheck:
    #   test: ./traefik healtcheck --ping
    volumes:
      - letsencrypt:/letsencrypt
    networks:
      - traefik
      - internal
      - default
    deploy:
      mode: global
      resources:
        limits:
          memory: 64M
        reservations:
          memory: 16M
  daemon:
    image: alpine/socat
    command: tcp-listen:2375,fork,reuseaddr unix-connect:/var/run/docker.sock
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
    networks:
      - internal
    deploy:
      placement:
        constraints:
          - node.role == manager
      resources:
        limits:
          cpus: '0.5'
          memory: 32M
  ping:
    image: alpine/socat
    command: tcp-listen:8080,fork,reuseaddr tcp:traefik:8080
    deploy:
      resources:
        limits:
          cpus: '0.5'
          memory: 32M
      labels:
        - traefik.enable=true
        - traefik.http.routers.ping.rule=Host(`trajano.net`) && Path(`/ping`)
        - traefik.http.routers.ping.entryPoints=https
        - traefik.http.routers.ping.middlewares=default
        - traefik.http.routers.ping.tls.certresolver=default
        - traefik.http.routers.ping.service=ping
        - traefik.http.services.ping.loadbalancer.server.port=8080

        - traefik.http.routers.insecure.rule=HostRegexp(`trajano.net`, `{subdomain:[a-z]+}.trajano.net`)
        - traefik.http.routers.insecure.entryPoints=http
        - traefik.http.routers.insecure.middlewares=https-only

        - traefik.http.middlewares.https-only.redirectscheme.scheme=https
        - traefik.http.middlewares.https-only.redirectscheme.permanent=true

        - traefik.http.middlewares.default.chain.middlewares=compress-all
        - traefik.http.middlewares.compress-all.compress=true
    networks:
      - traefik
  zipkin:
    image: openzipkin/zipkin
    networks:
      - internal
    deploy:
      resources:
        limits:
          cpus: '0.5'
          memory: 128M
  zookeeper:
    image: zookeeper:3.4.13
    networks:
      - internal
    deploy:
      resources:
        limits:
          cpus: '0.5'
          memory: 64M
networks:
  internal:
    internal: true
    attachable: false
  traefik:
    name: traefik
    internal: true
    attachable: true
volumes:
  letsencrypt:

Before I make those alterations you pointed out