feat(components/execd): set up standard bootstrap script in execd image with multi-provision compatibility

Author: Pangjiping

components/execd/Dockerfile

@@ -27,5 +27,6 @@ RUN CGO_ENABLED=0 go build -o /build/execd ./main.go
 FROM alpine:latest
 
 COPY --from=builder /build/execd .
+COPY bootstrap.sh .
 
 ENTRYPOINT ["./execd"]

components/execd/bootstrap.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+# Copyright 2025 Alibaba Group Holding Ltd.
+# 
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+set -e
+
+EXECD="${EXECD:=/opt/opensandbox/execd}"
+echo "starting OpenSandbox execd daemon at $EXECD"
+$EXECD &
+
+exec "$@"