feat: refactor s6 startup service

experimental/base-tools/scripts/svc/configure-startup.sh

@@ -3,24 +3,26 @@ set -euo pipefail
 # Source some common functions and variables
 BASE_TOOLS_DIR=${BASE_TOOLS_DIR:-/opt/base-tools}
 ROOT_DIR=$BASE_TOOLS_DIR/scripts/svc
+STARTUP_SCRIPTS_DIR=${STARTUP_SCRIPTS_DIR:-/usr/start}
 source $ROOT_DIR/common.sh
 # Setup s6 service for startup.sh
 S6_DIR=/etc/s6-overlay/s6-rc.d
 mkdir -p "$S6_DIR"
 # startup oneshot referencing existing script
 mkdir -p "$S6_DIR/startup" "$S6_DIR/startup/dependencies.d"
+cp "$ROOT_DIR/handle-startup.sh" "$S6_DIR/startup/handle-startup.sh"
+# copy default start up scripts to STARTUP_SCRIPTS_DIR
+# these scripts should exit quickly to prevent delaying container startup
+mkdir -p "$STARTUP_SCRIPTS_DIR"
+chmod +x "$ROOT_DIR/startup/"*
+cp -r $ROOT_DIR/startup/* "$STARTUP_SCRIPTS_DIR/"
 # Create run first (idempotent overwrite)
 cat >"$S6_DIR/startup/run" <<'STARTUP'
-#!/usr/bin/env bash
+#!/command/with-contenv bash
 set -euo pipefail
-
-if [ -n "${SEALOS_DEVBOX_NAME:-}" ]; then
-	echo "${SEALOS_DEVBOX_NAME}" > /etc/hostname
-fi
-mkdir -p /usr/start
-if [ -n "${SEALOS_DEVBOX_POD_UID:-}" ]; then
-	echo "${SEALOS_DEVBOX_POD_UID}" > /usr/start/pod_id
-fi
+SOURCE_DIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
+chmod +x "$SOURCE_DIR/handle-startup.sh"
+"$SOURCE_DIR/handle-startup.sh"
 STARTUP
 echo oneshot >"$S6_DIR/startup/type"
 echo '/etc/s6-overlay/s6-rc.d/startup/run' >"$S6_DIR/startup/up"

experimental/base-tools/scripts/svc/handle-startup.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+STARTUP_SCRIPTS_DIR=${STARTUP_SCRIPTS_DIR:-/usr/start}
+
+# Exit quietly if the directory is missing or empty
+if [ ! -d "$STARTUP_SCRIPTS_DIR" ]; then
+    exit 0
+fi
+
+mapfile -t STARTUP_SCRIPTS < <(find "$STARTUP_SCRIPTS_DIR" -type f -executable -print | sort)
+
+if [ ${#STARTUP_SCRIPTS[@]} -eq 0 ]; then
+    exit 0
+fi
+
+# Run each startup program sequentially in lexical order for deterministic behavior
+# IMPORTANT: These programs should exit quickly to avoid delaying container startup
+for script in "${STARTUP_SCRIPTS[@]}"; do
+    "$script"
+done

experimental/base-tools/scripts/svc/startup/00-set-hostname.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+set -euo pipefail
+if [ -n "${SEALOS_DEVBOX_NAME:-}" ]; then
+	echo "${SEALOS_DEVBOX_NAME}" > /etc/hostname
+	chmod 644 /etc/hostname
+fi

experimental/base-tools/scripts/svc/startup/01-set-pod-id.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+set -euo pipefail
+mkdir -p /usr/start
+if [ -n "${SEALOS_DEVBOX_POD_UID:-}" ]; then
+	echo "${SEALOS_DEVBOX_POD_UID}" > /usr/start/pod_id
+	chmod 644 /usr/start/pod_id
+fi