Question: can I -it to the shell of internal Linux host on Mac?

[jameschenjav]

Hi there,

I am using Rancher Desktop mostly for Docker Desktop alternative for non-linux OSes. One of the containers I am using, requires to chown volume first for data persistance.

$ docker inspect foo
[
    {
        "CreatedAt": "2022-04-18T02:55:20Z",
        "Driver": "local",
        "Labels": {},
        "Mountpoint": "/var/lib/docker/volumes/foo/_data",
        "Name": "foo",
        "Options": {},
        "Scope": "local"
    }
]

So I want to chown directly on the internal host Linux before start the container. On Windows with WSL2, I can wsl -d rancher-desktop to connect to the internal Linux host, and inspect what are available. For example:

~ # df -h
Filesystem                Size      Used Available Use% Mounted on
/dev/sdc                251.0G    540.3M    237.6G   0% /
tmpfs                     3.1G      1.7M      3.1G   0% /mnt/wsl
tools                    59.7G     30.7G     29.0G  51% /init
none                      3.1G         0      3.1G   0% /dev
none                      3.1G    216.0K      3.1G   0% /run
none                      3.1G         0      3.1G   0% /run/lock
none                      3.1G         0      3.1G   0% /run/shm
none                      3.1G         0      3.1G   0% /run/user
tmpfs                     3.1G         0      3.1G   0% /sys/fs/cgroup
drivers                  59.7G     30.7G     29.0G  51% /usr/lib/wsl/drivers
lib                      59.7G     30.7G     29.0G  51% /usr/lib/wsl/lib
C:\134                   59.7G     30.7G     29.0G  51% /mnt/c
/dev/sdd                251.0G     66.8M    238.1G   0% /mnt/wsl/rancher-desktop/run/data
/dev/sdd                251.0G     66.8M    238.1G   0% /etc/rancher
/dev/sdd                251.0G     66.8M    238.1G   0% /var/lib

~ # chown 1234 /var/lib/docker/volumes/foo/_data
~ # ls -la /var/lib/docker/volumes/foo/_data
total 8
drwxr-xr-x    2 1234     0             4096 Apr 18 02:55 .
drwx-----x    3 root     0             4096 Apr 18 02:55 ..

Apart from this, what can I do to inspect/change something on host like /etc/docker/daemon.json, fs.inotify.max_user_watches, etc.?

I tried colima recently, it provides a command colima ssh. Is there any similar thing I can do with Rancher Desktop?

[jameschenjav]

Figured out by ps aux | cat, my ~/.ssh/config:

Host rancher-desktop
    HostName 127.0.0.1
    Port 49154 # rg -Fw localPort ~/Library/Application\ Support/rancher-desktop/lima/0/lima.yaml | awk -F': ' '{ print $2 }'
    IdentityFile "~/Library/Application Support/rancher-desktop/lima/_config/user"
    NoHostAuthenticationForLocalhost yes

❯ ssh rancher-desktop
Welcome to Alpine!

The Alpine Wiki contains a large amount of how-to guides and general
information about administrating Alpine systems.
See <http://wiki.alpinelinux.org/>.

You can setup the system with the command: setup-alpine

You may change this message by editing /etc/motd.

lima-rancher-desktop:~$ df -h
Filesystem                Size      Used Available Use% Mounted on
devtmpfs                 10.0M         0     10.0M   0% /dev
shm                       2.9G         0      2.9G   0% /dev/shm
/dev/sr0                205.0M    205.0M         0 100% /media/cdrom
tmpfs                     2.9G    481.1M      2.4G  16% /
tmpfs                     1.2G    376.0K      1.2G   0% /run
/dev/loop0               12.8M     12.8M         0 100% /.modloop
/dev/disk/by-label/cidata
                          6.8M      6.8M         0 100% /mnt/lima-cidata
/dev/disk/by-label/data-volume
                         97.9G      5.1G     87.7G   6% /mnt/data
/dev/disk/by-label/data-volume
                         97.9G      5.1G     87.7G   6% /etc
/dev/disk/by-label/data-volume
                         97.9G      5.1G     87.7G   6% /home
/dev/disk/by-label/data-volume
                         97.9G      5.1G     87.7G   6% /tmp
/dev/disk/by-label/data-volume
                         97.9G      5.1G     87.7G   6% /usr/local
/dev/disk/by-label/data-volume
                         97.9G      5.1G     87.7G   6% /var/lib
cgroup_root              10.0M         0     10.0M   0% /sys/fs/cgroup
:/Users/james/Library/Caches/rancher-desktop/k3s
                        817.7G    323.7G    494.0G  40% /Users/james/Library/Caches/rancher-desktop/k3s
:/Users/james           817.7G    323.7G    494.0G  40% /Users/james
:/tmp/rancher-desktop
                        817.7G    323.7G    494.0G  40% /tmp/rancher-desktop

[jandubois]

The upcoming release 1.3.0 has an rdctl shell command to do this on all 3 platforms (Linux, macOS, and Windows):

$ rdctl shell uname -a
Linux lima-rancher-desktop 5.15.32-0-virt #1-Alpine SMP Mon, 28 Mar 2022 13:09:00 +0000 x86_64 Linux
$ rdctl shell
lima-rancher-desktop:/Users/jan$