fix: fix container slow caused by uid/gid

docker/Dockerfile

@@ -6,7 +6,10 @@ RUN apt update \
     && apt install wget git cmake build-essential python3 python3-venv python3-pip autoconf automake libtool gosu -y
 
 ARG DOCKER_USER=build
-RUN useradd -m "$DOCKER_USER"
+ARG DOCKER_UID=1000
+ARG DOCKER_GID=1000
+RUN groupadd --gid "$DOCKER_GID" "$DOCKER_USER" \
+    && useradd --uid "$DOCKER_UID" --gid "$DOCKER_GID" --create-home --shell /bin/bash "$DOCKER_USER"
 USER $DOCKER_USER
 
 FROM base_apt AS host_tools
@@ -76,4 +79,4 @@ USER root
 RUN chmod 0755 /entrypoint \
  && sed "s/\$DOCKER_USER/$DOCKER_USER/g" -i /entrypoint
 
-ENTRYPOINT ["/entrypoint"]
+ENTRYPOINT ["/entrypoint"]

docker/entrypoint

@@ -12,11 +12,19 @@ fi
 
 if [ "$UID" != 0 ]
 then
-        usermod -u "$UID" "$DOCKER_USER" 2>/dev/null && {
+        current_uid="$(id -u "$DOCKER_USER")"
+        current_gid="$(id -g "$DOCKER_USER")"
+
+        if [ "$current_uid" != "$UID" ]; then
+                usermod -u "$UID" "$DOCKER_USER"
+        fi
+
+        if [ "$current_gid" != "$GID" ]; then
                 groupmod -g "$GID" "$DOCKER_USER" 2>/dev/null ||
                 usermod -a -G "$GID" "$DOCKER_USER"
-        }
+        fi
+
         set -- gosu "${UID}:${GID}" "${@}"
 fi
 
-exec "$@"
+exec "$@"