HTTPD mod jk 负载均衡器返回 404

Question

我正在尝试使用 Docker 设置一个小型的两节点 Tomcat 9 集群。 我的工作是这里找到的内容的修改版本： https://github.com/Paritosh-Anand/Docker-Httpd-Tomcat 。

我已经正确（我希望）配置了两个 Tomcat 节点，并成功地为它们提供了一个小型 Spring 引导应用程序（上下文根为“/sample”）。 但是，我似乎无法使用 mod_jk 正确配置 HTTPD，以便它通过负载平衡方法访问这些节点。 （例如：当我尝试访问 192.168.10.10/sample 时，我收到 404）。

docker-compose.yml：

version: "3"
services:
        httpd:
                container_name: httpd
                restart: always
                build: ./httpd
                networks:
                        static-network:
                                ipv4_address: "192.168.10.10"
        # To add a new tomcat node, just copy and add a new service definition, then change the
        # container_name and ipv4_address
        tomcat1:
                container_name: tomcat1
                build: ./tomcat
                depends_on:
                        - httpd
                networks:
                        static-network:
                                ipv4_address: "192.168.10.21"
        tomcat2:
                container_name: tomcat2
                build: ./tomcat
                depends_on:
                        - httpd
                networks:
                        static-network:
                                ipv4_address: "192.168.10.22"

networks:
        static-network:
                driver: bridge
                ipam:
                        driver: default
                        config:
                                - subnet: 192.168.10.0/24

Dockerfile (httpd):

FROM ubuntu:20.04

ENV TZ="America/New_York"
ENV DEBIAN_FRONTEND="noninteractive"

RUN apt update && apt install -y --no-install-recommends apache2 libapache2-mod-jk

# add the config files here
ADD apache2.conf /etc/apache2/apache2.conf
ADD 000-default.conf /etc/apache2/sites-enabled/000-default.conf
ADD worker.properties /etc/libapache2-mod-jk/workers.properties
ADD jk.conf /etc/apache2/mods-available/jk.conf

# volume
VOLUME ["/var/log/apache2"]

# expose
EXPOSE 80 443

CMD ["apachectl","-k","start","-DFOREGROUND"]

jk.conf

# this may need to be changed
JKMount /* loadbalancer

JkLogLevel debug

worker.properties

worker.list=tomcat_1,tomcat_2

worker.tomcat_1.port=8009
worker.tomcat_1.host=192.168.10.21
worker.tomcat_1.type=ajp13

worker.tomcat_2.port=8009
worker.tomcat_2.host=192.168.10.22
worker.tomcat_2.type=ajp13

worker.loadbalancer.type=lb
worker.loadbalancer.balance_workers=tomcat_1, tomcat_2

000-default.conf

<VirtualHost *:80>
        #ServerName www.example.com

        ServerAdmin jason@localhost
        DocumentRoot /var/www/html

        #LogLevel info ssl:warn

        ErrorLog ${APACHE_LOG_DIR}/error.log
        CustomLog ${APACHE_LOG_DIR}/access.log combined

        #Include conf-available/serve-cgi-bin.conf

        JkOptions +ForwardKeySize +ForwardURICompat -ForwardDirectories
        JkRequestLogFormat "%w %V %T"
    JkLogLevel debug
        JkMount /* loadbalancer

</VirtualHost>