Remove directories for removed containers on the host #65
Description
[ec2-user@ip-172-31-30-18 ~]$ sudo /usr/local/bin/ctr run --snapshotter firecracker-naive --runtime aws.firecracker --tty docker.io/library/busybox:latest test
/ # echo hello
hello
/ # exit
[ec2-user@ip-172-31-30-18 ~]$ sudo /usr/local/bin/ctr c rm test
[ec2-user@ip-172-31-30-18 ~]$ sudo /usr/local/bin/ctr run --snapshotter firecracker-naive --runtime aws.firecracker --tty docker.io/library/busybox:latest test
ctr: mkdir /run/containerd/io.containerd.runtime.v2.task/default/test: file exists: unknown
Even though I've deleted the container (and its snapshot) on the host, the microVM rootfs the host retains the bundle directory that was created for the container. We should either clean up the bundle directory when the container is removed (or stopped?), or we should ensure that the microVM rootfs is read-only (or separate per microVM).