Recently i got a new macbook pro and i started setting it up. Everything was going great until i tried to install docker and create default docker machine. After i installed Docker for Mac, i tried to start virtual machine :
Docker Desktop is an application for MacOS and Windows machines for the building and sharing of containerized applications and microservices. Docker Desktop delivers the speed, choice and security you need for designing and delivering containerized applications on your desktop. Because of the way networking is implemented in Docker Desktop for Mac, you cannot see a docker0 interface on the host. This interface is actually within the virtual machine. I cannot ping my containers. Docker Desktop for Mac can’t route traffic to containers. Per-container IP addressing is not possible. Docker Machine is a tool that lets you install Docker Engine on virtual hosts, and manage the hosts with docker-machine commands. You can use Machine to create Docker hosts on your local Mac or Windows box, on your company network, in your data center, or on cloud providers like AWS or Digital Ocean.
After some googling i found couple of solutions for the problem :
- Reinstall VM and then restart computer
- Install older version of VM, install it and then restart computer
- Restart VirtualBox
You're using Docker Machine in your Windows VM, which is actually going to create a Linux VM inside the Windows VM on your Mac. You can do that, but you need to enable nested virtualization - which I'm not sure you can do in Parallels 7. Instead you can run Docker Machine on the Mac directly and use Parallels to create the Linux VM - which means Docker is running in a Linux VM on your Mac, and you don't need.
Tried all of them and everytime it was a failure. One thing was not leaving me in piece - when i was re-installing VirtualBox i was getting an error during installation :
Still, i was able to launch VirtualBox UI and even see that default machine was created. Though, when i tried to start it - i was getting driver not installed (rc=-1908) error. This got me to one thread, where i found a suggestion to check Mac OS Privacy settings and check if VirtualBox software was asking for permissions or not. And that was it ! So, to fix this problem you just have to :
- Start VirtualBox installation
- Wait for it to Fail
- Open
Settings->Security&Privacy - On the bottom there will be a record that
System software from 'Oracle' developer was blocked from loading - Tap
Allowbutton - Install VirtualBox again.
At the end you should have a Successful installation of VirtualBox and now you can
Now you just need to docker-machine env default and you are all set.
Happy coding ! :)
Estimated reading time: 4 minutes
Docker Desktop for Mac provides several networking features to make iteasier to use.
Features
VPN Passthrough
Docker Desktop for Mac’s networking can work when attached to a VPN. To do this,Docker Desktop for Mac intercepts traffic from the containers and injects it intoMac as if it originated from the Docker application.
Port Mapping
When you run a container with the -p argument, for example:
Docker Desktop for Mac makes whatever is running on port 80 in the container (inthis case, nginx) available on port 80 of localhost. In this example, thehost and container ports are the same. What if you need to specify a differenthost port? If, for example, you already have something running on port 80 ofyour host machine, you can connect the container to a different port:
Now, connections to localhost:8000 are sent to port 80 in the container. Thesyntax for -p is HOST_PORT:CLIENT_PORT.
HTTP/HTTPS Proxy Support
See Proxies.
Known limitations, use cases, and workarounds
Following is a summary of current limitations on the Docker Desktop for Macnetworking stack, along with some ideas for workarounds.
There is no docker0 bridge on macOS
Because of the way networking is implemented in Docker Desktop for Mac, you cannot see adocker0 interface on the host. This interface is actually within the virtualmachine.
I cannot ping my containers
Docker Desktop for Mac can’t route traffic to containers.
Per-container IP addressing is not possible
The docker (Linux) bridge network is not reachable from the macOS host.
Use cases and workarounds
Docker Mac Virtual Machine Windows 10
There are two scenarios that the above limitations affect:
I want to connect from a container to a service on the host
The host has a changing IP address (or none if you have no network access). We recommend that you connect to the special DNS namehost.docker.internal which resolves to the internal IP address used by thehost. This is for development purpose and will not work in a production environment outside of Docker Desktop for Mac.
You can also reach the gateway using gateway.docker.internal.
If you have installed Python on your machine, use the following instructions as an example to connect from a container to a service on the host:
Run the following command to start a simple HTTP server on port 8000.
python -m http.server 8000If you have installed Python 2.x, run
python -m SimpleHTTPServer 8000.Now, run a container, install
curl, and try to connect to the host using the following commands:
I want to connect to a container from the Mac
Port forwarding works for localhost; --publish, -p, or -P all work.Ports exposed from Linux are forwarded to the host.
Our current recommendation is to publish a port, or to connect from anothercontainer. This is what you need to do even on Linux if the container is on anoverlay network, not a bridge network, as these are not routed.
The command to run the nginx webserver shown in Getting Startedis an example of this.
To clarify the syntax, the following two commands both expose port 80 on thecontainer to port 8000 on the host:
To expose all ports, use the -P flag. For example, the following commandstarts a container (in detached mode) and the -P exposes all ports on thecontainer to random ports on the host.
See the run command for more details onpublish options used with docker run.
Docker And Vm
mac, networking