Specifically, that the Docker host system has mapped the default 5050 port on which Mesos listens inside the container to a random public port 49153. The 0.0.0.0 IP address is the “ANY” address, meaning you can use localhost or the IP of your Wi-Fi connection, or even 0.0.0.0 itself. However, this did not work for me.
When Docker starts, it creates a virtual interface named docker0 on the host machine. It randomly chooses an address and subnet from the private range defined by RFC 1918 that are not in use on the host machine, and assigns it to docker0. Docker made the choice 172.17.42.1/16 when I started it a few minutes ago, for example — a 16-bit netmask providing 65,534 addresses for the host machine and its containers. Based on this, it seems that you are not guaranteed to get 172.17.42.1 as your IP. Yes, you're right, but unless it's already taken, Docker will always use that subnet. The most affordable way is to map /var/local/emhttp/var.ini as RO and extract the IPADDR variable.
Cool, that works nicely, it's a simple little script to get the value, thanks. Unfortunately, that is an unraid-specific solution, it would be nice if there was a more generic solution. Along these lines, do you know of a way for a Dockerfile to tell if it was started in host mode vs bridge mode? It would be ideal if Needo's PlexWatch could do this, and then configure itself:. If host mode, connect to Plex running on 'localhost'.
If bridge mode, connect to the host ip (or 172.17.42.1, if that is really safe to use). The most affordable way is to map /var/local/emhttp/var.ini as RO and extract the IPADDR variable. Cool, that works nicely, it's a simple little script to get the value, thanks. Unfortunately, that is an unraid-specific solution, it would be nice if there was a more generic solution. Along these lines, do you know of a way for a Dockerfile to tell if it was started in host mode vs bridge mode? It would be ideal if Needo's PlexWatch could do this, and then configure itself:.
If host mode, connect to Plex running on 'localhost'. If bridge mode, connect to the host ip (or 172.17.42.1, if that is really safe to use) this IS the unraid forum.
I have recently been researching NetflixOSS and found Netflix provides that make setting up a local development environment really easy. In order to run the images on Windows, I installed which is a Hyper-V based Docker host for Windows. This all installed without issue and I was able to run the NetflixOSS images: The problem is you can’t access the service websites from the Docker for Windows host. Docker for Windows creates a private network for itself in Hyper-V.
Both the Docker host and containers are issued IPs in this private network. By default, the computer running Docker for Windows cannot access this private network.
After several days a digging I found which describes how to open a route between the private network and the host OS by running the following command from an elevated command prompt. Route add 172.17.0.0 mask 255.255.0.0 10.0.75.2 -p The first IP address (172.17.0.0) is a reference to the default Docker subnet.
The mask specifies the level at which you want IPs routed. The last IP is the address for the Docker host. You can find this by opening Hyper-V Manager, selecting the MobyLinuxVM virtual machine and viewing the Networking tab at the bottom of the window.
The –p flag specifies the route should persist across reboots of the machine. After adding the route, you can run route print to see it was added correctly: If you set the IPs correctly, the Docker container should now be accessible from a browser on your development machine. Note I have noticed it can take a minute or two for the site to resolve the first time.
I hope this post was helpful. I will be digging into Docker and NetflixOSS with.NET Core in the future so stay tuned for more related posts. Post navigation.