check for KVM virtualization

images/virtualization/Dockerfile

@@ -0,0 +1,8 @@
+FROM ubuntu:24.04
+RUN --mount=type=tmpfs,target=/tmp,rw \
+    --mount=id=var_cache_apt,type=cache,target=/var/cache/apt,sharing=locked \
+    --mount=id=var_lib_apt,type=cache,target=/var/lib/apt,sharing=locked \
+    apt-get update --error-on=any && \
+    apt-get upgrade -y && \
+    apt-get install -y cpu-checker
+ADD check_virt.sh /usr/local/bin/check_virt.sh

images/virtualization/check_virt.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+# Check if kvm-ok is installed
+if ! command -v kvm-ok > /dev/null 2>&1; then
+    echo '{"kvm":false,"kvm_error":"kvm-ok command not found"}'
+    exit 1
+fi
+
+# Run kvm-ok and capture both stdout and stderr
+output=$(kvm-ok 2>&1)
+exit_code=$?
+
+if [ "$exit_code" -eq 0 ]; then
+    echo '{"kvm":true}'
+else
+    # Replace newlines with spaces and escape quotes
+    sanitized_output=$(printf '%s' "$output" | tr '\n' ' ' | sed 's/"/\\"/g')
+    echo "{\"kvm\":false,\"kvm_error\":\"$sanitized_output\"}"
+fi