[Release-1.29] - Killall script should not unmount /var/lib/rancher/rke2/(server|agent)

[vitorsavian]

Backport fix for Killall script should not unmount /var/lib/rancher/rke2/(server|agent)

• 6557

[endawkins]

Validated on with /

Environment Details

Infrastructure

• [X] Cloud
• [ ] Hosted

Node(s) CPU architecture, OS, and Version:

Linux ip-172-31-11-121 6.8.0-1012-aws #13-Ubuntu SMP Mon Jul 15 13:40:27 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
PRETTY_NAME="Ubuntu 24.04 LTS"
NAME="Ubuntu"
VERSION_ID="24.04"
VERSION="24.04 LTS (Noble Numbat)"
VERSION_CODENAME=noble
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=noble
LOGO=ubuntu-logo

Cluster Configuration:

1 server

Config.yaml:

N/A

Additional files

N/A

Testing Steps

1. Copy config.yaml

   $ sudo mkdir -p /etc/rancher/rke2 && sudo cp config.yaml /etc/rancher/rke2

2. Install RKE2
3. Mount server and agent dirs
4. Run killall
5. Verify server and agent directories are still present after killall

Replication Results: https://github.com/rancher/rke2/issues/6565#issuecomment-2303495748

Validation Results:

• rke2 version used for validation:

  rke2 -v
  rke2 version v1.29.8-rc2+rke2r1 (92e522acb6da8cfb1319bd68b5e15f2e4e04f8ff)
  go version go1.22.5 X:boringcrypto

cat /proc/mounts | grep /var/lib/rancher/rke2/agent; cat /proc/mounts | grep /var/lib/rancher/rke2/server
/dev/root /var/lib/rancher/rke2/agent ext4 rw,relatime,discard,errors=remount-ro 0 0
/dev/root /var/lib/rancher/rke2/server ext4 rw,relatime,discard,errors=remount-ro 0 0

Additional context / logs: Scenario for custom data dir

cat /proc/mounts | grep /var/elwood/server; cat /proc/mounts | grep /var/elwood/agent
/dev/root /var/elwood/server ext4 rw,relatime,discard,errors=remount-ro,commit=30 0 0
/dev/root /var/elwood/agent ext4 rw,relatime,discard,errors=remount-ro,commit=30 0 0