kata-deploy: Stop linking binaries to /usr/local/bin

Neither CRI-O nor containerd requires that, and removing such symlinks
makes everything less intrusive from our side.

Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>

tools/packaging/kata-deploy/helm-chart/kata-deploy/templates/kata-deploy.yaml

@@ -65,8 +65,6 @@ spec:
           mountPath: /etc/containerd/
         - name: kata-artifacts
           mountPath: /opt/kata/
-        - name: local-bin
-          mountPath: /usr/local/bin/
         - name: host
           mountPath: /host/
       volumes:
@@ -80,9 +78,6 @@ spec:
         hostPath:
           path: /opt/kata/
           type: DirectoryOrCreate
-      - name: local-bin
-        hostPath:
-          path: /usr/local/bin/
       - name: host
         hostPath:
           path: /

tools/packaging/kata-deploy/kata-deploy/base/kata-deploy.yaml

@@ -59,8 +59,6 @@ spec:
               mountPath: /etc/containerd/
             - name: kata-artifacts
               mountPath: /opt/kata/
-            - name: local-bin
-              mountPath: /usr/local/bin/
             - name: host
               mountPath: /host/
       volumes:
@@ -74,9 +72,6 @@ spec:
           hostPath:
             path: /opt/kata/
             type: DirectoryOrCreate
-        - name: local-bin
-          hostPath:
-            path: /usr/local/bin/
         - name: host
           hostPath:
             path: /

tools/packaging/kata-deploy/scripts/kata-deploy.sh

@@ -323,8 +323,6 @@ function wait_till_node_is_ready() {
 }
 
 function configure_cri_runtime() {
-	configure_different_shims_base
-
 	case $1 in
 	crio)
 		configure_crio
@@ -344,87 +342,6 @@ function configure_cri_runtime() {
 	wait_till_node_is_ready
 }
 
-function backup_shim() {
-	local shim_file="$1"
-	local shim_backup="${shim_file}.bak"
-
-	if [ -f "${shim_file}" ]; then
-		echo "warning: ${shim_file} already exists" >&2
-		if [ ! -f "${shim_backup}" ]; then
-			mv "${shim_file}" "${shim_backup}"
-		else
-			rm -f "${shim_file}"
-		fi
-	fi
-}
-
-function configure_different_shims_base() {
-	# Currently containerd has an assumption on the location of the shimv2 implementation
-	# This forces kata-deploy to create files in a well-defined location that's part of
-	# the PATH, pointing to the containerd-shim-kata-v2 binary in /opt/kata/bin
-	# Issues:
-	#   https://github.com/containerd/containerd/issues/3073
-	#   https://github.com/containerd/containerd/issues/5006
-
-	local default_shim_file="/usr/local/bin/containerd-shim-kata-v2"
-
-	mkdir -p /usr/local/bin
-
-	for shim in "${shims[@]}"; do
-		local shim_binary="containerd-shim-kata-${shim}-v2"
-		local shim_file="/usr/local/bin/${shim_binary}"
-
-		backup_shim "${shim_file}"
-
-		# Map the runtime shim name to the appropriate
-		# containerd-shim-kata-v2 binary
-		case "$shim" in
-			cloud-hypervisor | dragonball | qemu-runtime-rs)
-				ln -sf /opt/kata/runtime-rs/bin/containerd-shim-kata-v2 "${shim_file}" ;;
-			*)
-				ln -sf /opt/kata/bin/containerd-shim-kata-v2 "${shim_file}" ;;
-		esac
-
-		chmod +x "$shim_file"
-
-		if [ "${shim}" == "${default_shim}" ]; then
-			backup_shim "${default_shim_file}"
-
-			echo "Creating the default shim-v2 binary"
-			ln -sf "${shim_file}" "${default_shim_file}"
-		fi
-	done
-}
-
-function restore_shim() {
-	local shim_file="$1"
-	local shim_backup="${shim_file}.bak"
-
-	if [ -f "${shim_backup}" ]; then
-		mv "$shim_backup" "$shim_file"
-	fi
-}
-
-function cleanup_different_shims_base() {
-	local default_shim_file="/usr/local/bin/containerd-shim-kata-v2"
-
-	for shim in "${shims[@]}"; do
-		local shim_binary="containerd-shim-kata-${shim}-v2"
-		local shim_file="/usr/local/bin/${shim_binary}"
-
-		rm  -f "${shim_file}"
-
-		restore_shim "${shim_file}"
-	done
-
-	rm  -f "${default_shim_file}"
-	restore_shim "${default_shim_file}"
-
-	if [[ "${CREATE_RUNTIMECLASSES}" == "true" ]]; then
-		delete_runtimeclasses
-	fi
-}
-
 function configure_crio_runtime() {
 	local shim="${1}"
 	local runtime="kata-${shim}"
@@ -564,11 +481,13 @@ function configure_containerd() {
 function remove_artifacts() {
 	echo "deleting kata artifacts"
 	rm -rf /opt/kata/*
+
+	if [[ "${CREATE_RUNTIMECLASSES}" == "true" ]]; then
+		delete_runtimeclasses
+	fi
 }
 
 function cleanup_cri_runtime() {
-	cleanup_different_shims_base
-
 	case $1 in
 	crio)
 		cleanup_crio