Running in Docker/Kubernetes #72
Description
Hi,
I'm wondering if you might have some examples of how to use this library inside Docker/Kubernetes environment? I running into issues when trying to set it up in such an environment.
I tried running the container with such parameters:
index.js
const mdnsService = require('multicast-dns')
const port = process.env.PORT || 53
const server = mdnsService({
port
})
server.on('query', function (query) {
console.log('DNS Query:', query.questions)
})
console.log(`Box up & running on port ${port}.`);
['SIGHUP', 'SIGINT', 'SIGQUIT', 'SIGILL', 'SIGTRAP', 'SIGABRT',
'SIGBUS', 'SIGFPE', 'SIGUSR1', 'SIGSEGV', 'SIGUSR2', 'SIGTERM'
].forEach(function (sig) {
process.on(sig, function () {
console.log('Box is shutting down.')
server.destroy()
})
})Dockerfile
FROM node:current-alpine3.13
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app
# update and install dependency
RUN apk update && apk upgrade
RUN apk add git
# copy the app, note .dockerignore
COPY package*.json /usr/src/app/
RUN npm install
COPY . /usr/src/app/
CMD [ "node", "index.js" ]Commands to build & run the container:
docker build -t multicast-dns .
docker run -it -e PORT=53 -p 53:53/udp -p 53:53/tcp multicast-dnsCommand to test the app:
dig @127.0.0.1 +tries=1 +time=1 some.domain.name.comThe above command works fine when I run this app via node index.js and I can see the log statement for the DNS query. But when I run it in docker, it looks like my diq requests are not coming through.
Thanks in advance for your help!