fix: docker-install skip installed packages and suspend needrestart

Avoid upgrading already-installed packages and restarting unrelated
services on Ubuntu 24.04, where apt-pinvoke -m u overrides NEEDRESTART_MODE.

script/docker-install.sh

@@ -25,6 +25,29 @@ dotfile_help_requested "${1:-}" && dotfile_show_help
 
 set -e
 
+# Ubuntu 24.04 的 apt hook 给 needrestart 传 -m u（强制重启服务），会覆盖
+# NEEDRESTART_MODE；只有 NEEDRESTART_SUSPEND 能让 hook 直接跳过。
+apt_get() {
+    sudo env DEBIAN_FRONTEND=noninteractive NEEDRESTART_SUSPEND=1 apt-get "$@"
+}
+
+pkg_installed() {
+    [ "$(dpkg-query -W -f='${Status}' "$1" 2>/dev/null)" = "install ok installed" ]
+}
+
+# 只补缺，不升级已装包。已全部装好则不调用 apt，避免触发 needrestart。
+apt_get_install() {
+    local missing=()
+    local pkg
+    for pkg in "$@"; do
+        pkg_installed "$pkg" || missing+=("$pkg")
+    done
+    if [ ${#missing[@]} -eq 0 ]; then
+        return 0
+    fi
+    apt_get install -y --no-install-recommends --no-upgrade "${missing[@]}"
+}
+
 detect_distro() {
     if [ ! -f /etc/os-release ]; then
         echo "[ERROR] 未检测到 /etc/os-release，无法识别系统"
@@ -51,14 +74,16 @@ detect_distro() {
 }
 
 remove_conflicting_packages() {
+    local pkg
     for pkg in docker.io docker-doc docker-compose podman-docker containerd runc; do
-        sudo apt-get remove -y $pkg 2>/dev/null || true
+        pkg_installed "$pkg" || continue
+        apt_get remove -y "$pkg" || true
     done
 }
 
 install_prerequisites() {
-    sudo apt-get update
-    sudo apt-get install -y ca-certificates curl gnupg lsb-release
+    apt_get update
+    apt_get_install ca-certificates curl gnupg lsb-release
 }
 
 add_user_to_docker_group() {
@@ -96,8 +121,8 @@ install_docker_cn() {
     echo "deb [arch=$(dpkg --print-architecture) signed-by=${keyring}] ${repo_base} \
     ${CODENAME} stable" | sudo tee /etc/apt/sources.list.d/docker.list >/dev/null
 
-    sudo apt-get update
-    sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
+    apt_get update
+    apt_get_install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
 
     add_user_to_docker_group
 }
@@ -115,8 +140,8 @@ install_docker_intl() {
         ${CODENAME} stable" |
         sudo tee /etc/apt/sources.list.d/docker.list >/dev/null
 
-    sudo apt-get update
-    sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
+    apt_get update
+    apt_get_install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
 
     add_user_to_docker_group
 }