即使连接到端口，也无法到达 docker 容器

Question

ı am trying to use a container and I came across a problem. when I curl localhost:8000 inside the container it connects but when I try to go there it says unable to connect. I am providing a screenshot, my YAML file, and my dockerfile.devel in case that helps. Thanks already. i curled inside the container and it connected to the port

my yaml file

version: "2"

services:
  cuckoo:
    privileged: true
    image: cuckoo-docker:2.0.7
    build:
      context: ./
      dockerfile: src/Dockerfile.devel
    ports:
      - "8888:8000"
      - "2042:2042"
    expose:
      - "8000"
    links:
      - mongo
      - postgres
    networks:
     - cuckoo
    restart: always
    cap_add:
      - NET_ADMIN
    extra_hosts:
      - "libvirt.local:172.30.201.1"

  mongo:
    image: mongo
    ports:
      - 27017:27017
    networks:
     - cuckoo
    restart: always

  postgres:
    image: postgres
    ports:
      - 5432:5432
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: cuckoo
    networks:
     - cuckoo
    restart: always

networks:
  cuckoo:
    driver: bridge

my dockerfile.devel

FROM ubuntu:18.04

ENV container docker
ENV LC_ALL C
ENV DEBIAN_FRONTEND noninteractive

RUN sed -i 's/# deb/deb/g' /etc/apt/sources.list

RUN apt update \
    && apt full-upgrade -y \
    && apt install -y systemd systemd-sysv \
    && apt clean \
    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

RUN cd /lib/systemd/system/sysinit.target.wants/ \
    && ls | grep -v systemd-tmpfiles-setup | xargs rm -f $1

RUN rm -f /lib/systemd/system/multi-user.target.wants/* \
    /etc/systemd/system/*.wants/* \
    /lib/systemd/system/local-fs.target.wants/* \
    /lib/systemd/system/sockets.target.wants/*udev* \
    /lib/systemd/system/sockets.target.wants/*initctl* \
    /lib/systemd/system/basic.target.wants/* \
    /lib/systemd/system/anaconda.target.wants/* \
    /lib/systemd/system/plymouth* \
    /lib/systemd/system/systemd-update-utmp*

RUN apt update \
    && apt install -y python2.7 python-pip python-dev libffi-dev libssl-dev python-virtualenv python-setuptools libjpeg-dev zlib1g-dev swig qemu-kvm libvirt-bin \
    ubuntu-vm-builder bridge-utils python-libvirt tcpdump libguac-client-rdp0 libguac-client-vnc0 libguac-client-ssh0 guacd pcregrep libpcre++-dev autoconf automake libtool \
    build-essential libjansson-dev libmagic-dev supervisor mongodb postgresql postgresql-contrib libpq-dev nano bison byacc tor suricata flex\
    && apt clean

RUN set -x \
    && cd /tmp/ \
    && git clone --recursive --branch 'v3.11.0' https://github.com/VirusTotal/yara.git \
    && cd /tmp/yara \
    && ./bootstrap.sh * \
    && sync \
    && ./configure --with-crypto --enable-magic --enable-cuckoo --enable-dotnet \
    && make \
    && make install \
    && rm -rf /tmp/* \
    && cd /tmp \
    && git clone --recursive --branch '2.6.1' https://github.com/volatilityfoundation/volatility.git \
    && cd volatility \
    && python setup.py build install \
    && rm -rf /tmp/*


RUN pip install -U --no-cache-dir pyrsistent==0.16.1 MarkupSafe==1.1.1 itsdangerous==1.1.0 configparser==4.0.2 distorm3==3.4.4 setuptools pycrypto ujson  cryptography psycopg2 jsonschema==3.2.0 werkzeug==0.16.0 Mako==1.1.0 python-editor==1.0.3 urllib3==1.25.7 tlslite==0.4.9 SFlock==0.3.3 tlslite-ng==0.7.6 pyOpenSSL==18.0.0

  

RUN apt update && apt install -y vim
COPY cuckoo /opt/cuckoo
WORKDIR /opt/cuckoo
RUN python stuff/monitor.py
RUN python setup.py sdist develop
RUN cuckoo init
RUN cuckoo community


COPY etc/conf /root/.cuckoo/conf
COPY etc/supervisord.conf /root/.cuckoo/
COPY etc/cuckoo.sh /opt/

RUN chmod +x /opt/cuckoo.sh

CMD ["/opt/cuckoo.sh"]

Answer 1

When you set

    ports:
      - "8888:8000"

this means that the port 8000 in the container is mapped to the port 8888 in the host machine so if you curl from the host machine you have to curl port 8888