Support Code debug in Devcontainer (#10095)

Signed-off-by: Nquicksilver <zhifeng.zhang@zilliz.com>

build/README.md

@@ -205,12 +205,6 @@ Modify vscode go setups if necessary, the setting path is **code -> preference -
 
 ![image](../docs/imgs/settings.png)
 
-Enable Code debug by remote debugging with dlv, you can enable debugging by run the following command inside your docker:
-
-```shell
-cp /go/bin/dlv /go/bin/dlv-dap
-```
-
 ### Integrate goland with docker
 TBD
 

build/docker/builder/cpu/centos7/Dockerfile

@@ -58,6 +58,8 @@ RUN mkdir -p /usr/local/go && wget -qO- "https://golang.org/dl/go1.15.2.linux-am
     go clean --modcache && \
     chmod -R 777 "$GOPATH" && chmod -R a+w $(go env GOTOOLDIR)
 
+RUN ln -s /go/bin/dlv /go/bin/dlv-dap
+
 RUN echo 'root:root' | chpasswd
 
 # refer: https://code.visualstudio.com/docs/remote/containers-advanced#_avoiding-extension-reinstalls-on-container-rebuild

build/docker/builder/cpu/ubuntu18.04/Dockerfile

@@ -35,6 +35,8 @@ RUN mkdir -p /usr/local/go && wget -qO- "https://golang.org/dl/go1.15.2.linux-am
     go clean --modcache && \
     chmod -R 777 "$GOPATH" && chmod -R a+w $(go env GOTOOLDIR)
 
+RUN ln -s /go/bin/dlv /go/bin/dlv-dap
+
 RUN apt-get update && apt-get install -y --no-install-recommends \
     gdb gdbserver && \
     apt-get remove --purge -y && \