Add a change for killall to not unmount server and agent directory

Signed-off-by: Vitor Savian <vitor.savian@suse.com>

Add recursive search and deletion of unmounted/mounted dirs in killall

Signed-off-by: Vitor Savian <vitor.savian@suse.com>

Only clean the server and agent directory if it is uninstall

Signed-off-by: Vitor Savian <vitor.savian@suse.com>

Add uninstall test to check mount points

Signed-off-by: Vitor Savian <vitor.savian@suse.com>

Add uninstall test in CI

Signed-off-by: Vitor Savian <vitor.savian@suse.com>

.github/workflows/install.yaml

@@ -89,11 +89,19 @@ jobs:
         run: vagrant provision --provision-with=k3s-status
       - name: "k3s-procps"
         run: vagrant provision --provision-with=k3s-procps
+      - name: "k3s-mount-directory"
+        run: vagrant provision --provision-with=k3s-mount-directory
+      - name: "k3s-uninstall"
+        run: vagrant provision --provision-with=k3s-uninstall
+      - name: "k3s-check-mount"
+        run: vagrant provision --provision-with=k3s-check-mount
+      - name: "k3s-unmount-dir"
+        run: vagrant provision --provision-with=k3s-unmount-dir
       - name: Cleanup VM
         run: vagrant destroy -f
       - name: On Failure, launch debug session
         uses: lhotari/action-upterm@v1
         if: ${{ failure() }}
         with:
           ## If no one connects after 5 minutes, shut down server.
-          wait-timeout-minutes: 5
+          wait-timeout-minutes: 5

install.sh

@@ -843,7 +843,6 @@ do_unmount_and_remove() {
 }
 
 do_unmount_and_remove '/run/k3s'
-do_unmount_and_remove "${K3S_DATA_DIR}"
 do_unmount_and_remove '/var/lib/kubelet/pods'
 do_unmount_and_remove '/var/lib/kubelet/plugins'
 do_unmount_and_remove '/run/netns/cni-'
@@ -902,10 +901,29 @@ for cmd in kubectl crictl ctr; do
     fi
 done
 
+clean_mounted_directory() {
+    if ! grep -q " \$1" /proc/mounts; then
+        rm -rf "\$1"
+	return 0
+    fi
+
+    for path in "\$1"/*; do
+        if [ -d "\$path" ]; then
+            if grep -q " \$path" /proc/mounts; then
+                clean_mounted_directory "\$path"
+            else
+                rm -rf "\$path"
+            fi
+        else
+            rm "\$path"
+        fi
+     done
+}
+
 rm -rf /etc/rancher/k3s
 rm -rf /run/k3s
 rm -rf /run/flannel
-rm -rf \${K3S_DATA_DIR}
+clean_mounted_directory \${K3S_DATA_DIR}
 rm -rf /var/lib/kubelet
 rm -f ${BIN_DIR}/k3s
 rm -f ${KILLALL_K3S_SH}

install.sh.sha256sum

@@ -1 +1 @@
-937085bbac8e3b55209739762e05c2c1006c4f4fe65dba01908f3544dc47da27  install.sh
+e10b36efb5e7e7692f144582d09f5909a91c5b5996965d643dbe13282befcfc1  install.sh

tests/install/fedora/Vagrantfile

@@ -43,6 +43,15 @@ Vagrant.configure("2") do |config|
 
     checkK3sProcesses(test.vm)
 
+    mountDirs(test.vm)
+
+    checkMountPoint(test.vm)
+
+    runUninstall(test.vm)
+
+    checkMountPoint(test.vm)
+
+    unmountDir(test.vm)
   end
 
   config.vm.provision 'selinux-status', type: 'shell', run: 'once', inline: 'sestatus'

tests/install/install_util.rb

@@ -89,4 +89,49 @@ def checkCGroupV2(vm)
       k3s check-config | grep 'cgroups V2 mounted'
       SHELL
     end
-  end
+  end
+
+  def mountDirs(vm)
+    vm.provision "k3s-mount-directory", type: "shell", run: ENV['CI'] == 'true' ? 'never' : 'once' do |sh|
+      sh.inline = <<~SHELL
+      #!/usr/bin/env bash
+      set -eu -o pipefail
+      echo 'Mounting server dir'
+      mount --bind /var/lib/rancher/k3s/server /var/lib/rancher/k3s/server
+      SHELL
+    end
+  end
+
+  def runUninstall(vm)
+    vm.provision "k3s-uninstall", type: "shell", run: ENV['CI'] == 'true' ? 'never' : 'once' do |sh|
+      sh.inline = <<~SHELL
+      #!/usr/bin/env bash
+      set -eu -o pipefail
+      echo 'Uninstall k3s'
+      k3s-server-uninstall.sh
+      SHELL
+    end
+  end
+
+  def checkMountPoint(vm)
+    vm.provision "k3s-check-mount", type: "shell", run: ENV['CI'] == 'true' ? 'never' : 'once' do |sh|
+      sh.inline = <<~SHELL
+      #!/usr/bin/env bash
+      set -eu -o pipefail
+      echo 'Check the mount'
+      mount | grep /var/lib/rancher/k3s/server
+      SHELL
+    end
+  end
+
+  def unmountDir(vm)
+    vm.provision "k3s-unmount-dir", type: "shell", run: ENV['CI'] == 'true' ? 'never' : 'once' do |sh|
+      sh.inline = <<~SHELL
+      #!/usr/bin/env bash
+      set -eu -o pipefail
+      echo 'unmount the mount'
+      umount /var/lib/rancher/k3s/server
+      rm -rf /var/lib/rancher
+      SHELL
+    end
+  end

tests/install/opensuse-leap/Vagrantfile

@@ -54,6 +54,15 @@ Vagrant.configure("2") do |config|
 
     checkK3sProcesses(test.vm)
 
+    mountDirs(test.vm)
+
+    checkMountPoint(test.vm)
+
+    runUninstall(test.vm)
+
+    checkMountPoint(test.vm)
+
+    unmountDir(test.vm)
   end
 
   %w[libvirt virtualbox vmware_desktop].each do |p|

tests/install/rocky-8/Vagrantfile

@@ -44,6 +44,15 @@ Vagrant.configure("2") do |config|
 
     checkK3sProcesses(test.vm)
 
+    mountDirs(test.vm)
+
+    checkMountPoint(test.vm)
+
+    runUninstall(test.vm)
+
+    checkMountPoint(test.vm)
+
+    unmountDir(test.vm)
   end
 
   config.vm.provision 'selinux-status', type: 'shell', run: 'once', inline: 'sestatus'

tests/install/rocky-9/Vagrantfile

@@ -45,6 +45,14 @@ Vagrant.configure("2") do |config|
     checkK3sProcesses(test.vm)
 
     checkCGroupV2(test.vm)
+
+    mountDirs(test.vm)
+
+    runUninstall(test.vm)
+
+    checkMountPoint(test.vm)
+
+    unmountDir(test.vm)
   end
 
   config.vm.provision 'selinux-status', type: 'shell', run: 'once', inline: 'sestatus'

tests/install/ubuntu-2204/Vagrantfile

@@ -44,6 +44,15 @@ Vagrant.configure("2") do |config|
 
     checkCGroupV2(test.vm)
 
+    mountDirs(test.vm)
+
+    checkMountPoint(test.vm)
+
+    runUninstall(test.vm)
+
+    checkMountPoint(test.vm)
+
+    unmountDir(test.vm)
   end
 
   %w[libvirt virtualbox vmware_desktop].each do |p|