minimize the docker file

Makefile

@@ -3,3 +3,9 @@ build:
 
 clean:
 	make -C src clean
+
+install:
+	sudo apt update
+	sudo apt-get install -y --no-install-recommends \
+        libelf1 libelf-dev zlib1g-dev \
+        make clang llvm

README.md

@@ -34,23 +34,53 @@ Click the "Use this template" button on the GitHub repository page to create a n
 
 Clone your newly created repository to your local machine:
 
+```sh
+git clone https://github.com/your_username/your_new_repository.git --recursive
 ```
-git clone https://github.com/your_username/your_new_repository.git
+
+Or after clone the repo, you can update the git submodule with following commands:
+
+```sh
+git submodule update --init --recursive
 ```
 
 ### **3. Install dependencies**
 
 For dependencies, it varies from distribution to distribution. You can refer to shell.nix and dockerfile for installation.
 
+On Ubuntu, you may run `make install` or
+
+```sh
+sudo apt-get install -y --no-install-recommends \
+        libelf1 libelf-dev zlib1g-dev \
+        make clang llvm
+```
+
+to install dependencies.
+
 ### **4. Build the project**
 
 To build the project, run the following command:
 
-```
+```sh
 make build
 ```
 
-This will compile your code and create the necessary binaries.
+This will compile your code and create the necessary binaries. You can you the `Github Code space` or `Github Action` to build the project as well.
+
+### ***Run the Project***
+
+You can run the binary with:
+
+```console
+sudo src/bootstrap
+```
+
+Or with Github Packages locally:
+
+```console
+docker run --rm -it --privileged -v $(pwd):/examples ghcr.io/eunomia-bpf/libbpf-template:latest
+```
 
 ### **7. GitHub Actions**
 

dockerfile

@@ -3,13 +3,8 @@ FROM ubuntu:22.04
 WORKDIR /root/
 COPY . /root/
 
-RUN apt-get update -y && \
-    apt-get install -y --no-install-recommends \
-      libelf1 libelf-dev zlib1g-dev libclang-13-dev \
-      make git clang llvm pkg-config build-essential && \
-    apt-get install -y --no-install-recommends ca-certificates	&& \
-	  update-ca-certificates	&& \
-    apt-get clean && \
-    rm -rf /var/lib/apt/lists/*
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends libelf1 \
+    && rm -rf /var/lib/apt/lists/*
 
-ENTRYPOINT ["/bin/bash"]
+ENTRYPOINT ["/root/src/bootstrap"]