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I'm running a react boilerplate app within a docker container, hosted Azure Web App Containers.
Locally, I spin the app up with:
docker run -p 3000:3000 431e522f8a87 My docker file looks like this:
FROM node:8.9.3 EXPOSE 3000 RUN mkdir -p src WORKDIR /src ADD . /src RUN yarn install RUN yarn build CMD ["yarn", "run", "start:prod"] APPLICATION SETTINGS
I've tried editing the Application Settings, to no avail, with the key/value pair: WEBSITES_PORT=3000
Apparently Azure only exposes ports 80 and 443 for inbound traffic:
80: Default port for inbound HTTP traffic to apps running in App Service Plans in an App Service Environment. On an ILB-enabled ASE, this port is bound to the ILB address of the ASE.
443: Default port for inbound SSL traffic to apps running in App Service Plans in an App Service Environment. On an ILB-enabled ASE, this port is bound to the ILB address of the ASE.
How do I expose port 3000 in an Azure App Service?
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There are several ways to do this: you can expose a port via the --expose flag at runtime, or include an EXPOSE instruction in the Dockerfile. You can also publish ports by using the -p or -P flags in the Docker run string. There's also container linking via --link .
On the left pane, navigate to the Settings section and then select Configuration. In the Application settings tab of Configuration, click New application setting to create a new setting for your web app service. In the Add/Edit application setting dialog box, enter the name and port for the website.
Ways to Assign a New Port Mapping to a Running ContainerStart over by stopping the existing container and relaunching a new one with the same original Docker image. Commit the existing container and relaunch a new container from the committed Docker image, keeping the state of the container we're trying to access.
User 4c74356b41 is correct.
In APPLICATION SETTINGS you need to set the key / value pair WEBSITES_PORT.
For some reason it's not working on this image, but I went through another example and did it all through the command line, and it worked fine.
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