主机无法访问 Wildfly 容器

Posted 2023-02-19

【中文标题】主机无法访问 Wildfly 容器

【英文标题】：Wildfly Container Not Reachable from Host

【发布时间】：2022-01-09 10:04:43

【问题描述】：

我需要访问在容器内部署到 wildfly 的应用程序，但我无法这样做。我绝对确定应用程序正在容器内的端口 8443 上运行。 为了构建镜像，我使用这个命令，注意端口转发参数。

docker run -p 8443:8443 folio-authentication-local:latest

要运行图像，我使用以下命令：

docker run -p 8443:8443 folio-authentication-local:latest

容器启动时没有错误。另外，我可以在容器中打开一个 shell 并点击端点，我会看到返回的内容（见下面的屏幕截图）。

但是，在主机浏览器中，我收到一个找不到页面的错误（请参阅第二个屏幕截图）。

希望有人可以让我知道我缺少什么。

Dockerfile：

### BUILD image
FROM maven:3.5-jdk-8-alpine as builder
ARG BRANCH_NAME=local
ARG mongo_replicaset=localhost:27017,localhost:27017,localhost:27017

EXPOSE 8443

# Create app folder for sources
RUN mkdir -p /build
WORKDIR /build
COPY pom.xml /build

# Download all required dependencies into one layer
RUN mvn -B dependency:resolve dependency:resolve-plugins

# Copy source code
COPY src /build/src

# Build application
RUN mvn package

WORKDIR /
# Copy all configurations into the image from the host
RUN mkdir -p /WildflyConfiguration
COPY  /WildflyConfiguration/* /WildflyConfiguration

# Copy all scripts into the image from the host
RUN mkdir -p /SetStandaloneXmlSettingsScripts
COPY  /SetStandaloneXmlSettingsScripts/* /SetStandaloneXmlSettingsScripts

# Set permissions on the folder
RUN chmod -R 777 ./SetStandaloneXmlSettingsScripts

#Update the standalone.xml file
RUN if [ "$BRANCH_NAME" = "development" ]; then \ 
    ./SetStandaloneXmlSettingsScripts/setEKSDevStandaloneXmlSettings.sh; \
elif [ "$BRANCH_NAME" = "local" ]; then \
    ./SetStandaloneXmlSettingsScripts/setLocalStandaloneXmlSettings.sh; \       
else \
    echo "There was no branch name found that matches your standalon" && exit 1; \
fi 

#Create the deployment
FROM jboss/wildfly:21.0.2.Final as Final

#Copy the artifact to the deployments folder
COPY --from=builder /build/target/Authentication.war /opt/jboss/wildfly/standalone/deployments/Authentication.war

#Copy the standalone configuration into wildfly
COPY --from=builder /WildflyConfiguration/standalone.xml /opt/jboss/wildfly/standalone/configuration/standalone.xml

ENTRYPOINT ["/opt/jboss/wildfly/bin/standalone.sh"]

【参考方案1】：

默认情况下，WildFly 配置为绑定到环回地址 (127.0.0.1)，因此您无法从容器外部访问服务器。您可以通过将 -b 参数传递给 standalone.sh 来覆盖它。

例如，要绑定到所有可用接口，您可以将ENTRYPOINT 修改为以下内容。

ENTRYPOINT ["/opt/jboss/wildfly/bin/standalone.sh", "-b", "0.0.0.0"]