如何在 Linux 主机上的 docker 中运行 avahi?

问题描述

我正在尝试在 Linux 主机上运行的 docker 容器中设置 avahi。目的是让avahi宣布一个我自己的服务,form我找到docker主机的主机和IP。

到目前为止,avahi 似乎在容器中运行良好,但我找不到从主机外部搜索的服务。

我在谷歌上搜索了很多,有一些建议可以做什么,但它们似乎都是矛盾的和/或不安全的。

这是我目前得到的。

docker-compose.yml

version: "3.7"
services:
    avahi:
        container_name: avahi
        build:
            context: ./config/avahi
            dockerfile: DockerFile
            network: host

Docker 文件

FROM alpine:3.13

RUN apk add --no-cache avahi avahi-tools
ADD avahi-daemon.conf /etc/avahi/avahi-daemon.conf
ADD psmb.service /etc/avahi/services/mpsu.service


ENTRYPOINT avahi-daemon --no-drop-root --no-rlimits

avahi-daemon.conf:

[server]
enable-dbus=no

psmb.service:(我的服务)

<!DOCTYPE service-group SYstem "avahi-service.dtd"> 
<service-group> 
    <name replace-wildcards="yes">PSMB</name>
    <service> <type>_mqtt._tcp</type> <port>1883</port>
        <txt-record>info=MPS Service Host</txt-record>
    </service>
</service-group>

这是启动avahi时的终端:

> docker-compose up                                       
Starting avahi ... done
Attaching to avahi
avahi    | avahi-daemon 0.8 starting up.
avahi    | WARNING: No NSS support for mDNS detected,consider installing nss-mdns!
avahi    | Loading service file /etc/avahi/services/mpsu.service.
avahi    | Loading service file /etc/avahi/services/sftp-ssh.service.
avahi    | Loading service file /etc/avahi/services/ssh.service.
avahi    | Joining mDNS multicast group on interface eth0.IPv4 with address 172.18.0.2.
avahi    | New relevant interface eth0.IPv4 for mDNS.
avahi    | Joining mDNS multicast group on interface lo.IPv4 with address 127.0.0.1.
avahi    | New relevant interface lo.IPv4 for mDNS.
avahi    | Network interface enumeration completed.
avahi    | Registering new address record for 172.18.0.2 on eth0.IPv4.
avahi    | Registering new address record for 127.0.0.1 on lo.IPv4.
avahi    | Server startup complete. Host name is 8f220b5ac449.local. Local service cookie is 1841391818.
avahi    | Service "8f220b5ac449" (/etc/avahi/services/ssh.service) successfully established.
avahi    | Service "8f220b5ac449" (/etc/avahi/services/sftp-ssh.service) successfully established.
avahi    | Service "PSMB" (/etc/avahi/services/mpsu.service) successfully established.

那么,如何配置才能搜索我的服务?
我想获取运行 docker 的主机的主机信息。

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