Extra Credit
Created the directory structure in the home directory - I used $HOME to access my home directory.
Downloaded the archive of the minimal Linux filesystem and extracted its contents into the apline directory which will serve as our read only lowerdir.
List of our first mount from the host. This is the default mount namespace for the host where all processes start. There are 20 process running and isolation has not been created as there is only one filesystem. Nothing to isolate from here.
Terminal 2 and 3 create a bin/bash inside a set of new isolated namespaces using the unshare command. --Mount creates the new mount namespace and --make-private prevents changes from leaking to the host
The PID are not the same from the host perspective but both appear as 1 inside their terminals. This is because the namespaces are isolated and both create the first p
Created namespaces netns1 and netns2
Connected the isolated containers to a network cable through veth pairing. One end of the cable stays on host and the other goes to the namespace
Now we turn on the network interfaces and assign them IP addresses using the given ip's and commands. We then add routes so the host knows how to reach the IP.
The command at the end shows that our interfaces and IP addresses for netns1 only exist in netns1
Step 1- Diagram Setup:
We created the host and the ubuntu container in google cloud shell. After installing net-tools we are able to access ifconfig and get the IP for each container. The IP for our host and the docker bridge is 172.17.0.1. This is the IP we are using to access google cloud and docker.
