Question

我已经使用docker-ce设置了一个Ubuntu服务器。在这里，我正在运行一个小型的码头集装箱，工作正常。它启动一个tomcat映像，将8080暴露给本地端口80.我已经测试了docker exec -it，它可以工作。

但是当我抛出浏览器并尝试通过我的ubuntu主机IP地址访问它时，我什么都没得到。如果我打开终端并通过SSH连接到我的ubuntu服务器并尝试curl localhost，我会收到连接拒绝错误。

我检查了我的iptables，并且DOCKER存在一个链，其中包含0.0.0.0/0的源和暴露的tcp dpt：80端口。

在谷歌上搜索，我看到有人引用docker-machine。这没有安装，所以我安装了它。这需要我创建一些东西，所以我尝试创建一个docker-machine。但这需要virtualbox，所以我安装了它。在我修改我的BIOS之前，Virtualbox才会启动.... 这是不是必须这样做？

我认为只安装docker-ce就足够了。在我的本地Windows机器上就足够了，为什么在我的云托管的ubuntu服务器上它不够呢？我错过了什么？

Dockerfile

#####################
## Stage 1: Build  ##

# We base this builder on tomcat, as our build script relies heavily
# on tomcat libraries
FROM tomcat:7.0-jre7 as builder

# Install sources
RUN curl -sL https://deb.nodesource.com/setup_9.x | bash && \
    curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - && \
    echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list

# We install our build environment (java 1.7, ant and node)
RUN apt-get update && apt-get install -y openjdk-7-jdk ant apt-transport-https nodejs yarn git

# We set the java options needed to compile this
ENV JAVA_OPTS="-Dorg.apache.jasper.compiler.Parser.STRICT_QUOTE_ESCAPING=false -XX:MaxPermSize=512m"

# Then we copy in our app and libraries used for building it
WORKDIR /usr/src/app
COPY . .
COPY tomcat/lib /usr/local/tomcat/lib

# Run frontend dependency installation (npm and bower)
RUN echo '{ "allow_root": true }' > /root/.bowerrc && yarn install

# We build it (this will also deploy it to this tomcat container
# but the tomcat container will never startup before the build stage
# is discarded)
RUN ant clean init jar-dev-configuration compile deploy


#####################
## Stage 2: Runner ##
FROM tomcat:7.0-jre7-alpine

# Copy in local configuration
COPY tomcat/conf /usr/local/tomcat/conf
COPY tomcat/lib /usr/local/tomcat/lib

# Copy in built products
COPY --from=builder /usr/local/tomcat/webapps/kx /usr/local/tomcat/webapps/kx
COPY --from=builder /usr/local/tomcat/webapps/portal /usr/local/tomcat/webapps/portal

EXPOSE 8080

搬运工-compose.yml

version: '3'

services:
  web:
    build: .
    ports:
      - 8080:80
    volumes:
      # Upload folders should be local 
      - ./upload:/usr/local/tomcat/webapps/portal/upload:rw

Answer 1

根据给定的信息，我可以告诉您，在docker-compose.yml中，您将端口8080暴露给您的主机（因此，向世界）和端口80到您的容器中。

尝试将它们换成：

ports:
# host:container
 - 80:8080

将码头工人暴露在世界之中

1 个答案: