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Run GCC Docker image on Raspberry pi

 Steps to Run GCC Docker image on Raspberry pi:

1. Create folder with below contents:

    build --> Folder
    Dockerfile --> Docker image file
    main.c  --> C Program

2. Write a simple c program into main.c file
     // C program to implement
    // the above approach
    #include <stdio.h>

    // Driver code
    int main()
    {
        printf("Welcome to Docker World!!!\n");
        return 0;
    }

3. Edit Dockerfile and write below contents
    FROM gcc:latest
    COPY . /build
    WORKDIR /build/
    RUN gcc -o main main.c
    CMD [“./main”]

4. Save and Build Dockerfile, using command "docker build -t main-gcc-app ."
    DEPRECATED: The legacy builder is deprecated and will be removed in a future release.
                Install the buildx component to build images with BuildKit:
                https://docs.docker.com/go/buildx/

    Sending build context to Docker daemon  488.4kB
    Step 1/5 : FROM gcc:latest
    latest: Pulling from library/gcc
    de07ba6f486e: Pull complete 
    84649bff67ea: Pull complete 
    48a2a14f59a0: Pull complete 
    0d41c7623f41: Pull complete 
    e532a4816a8d: Pull complete 
    d758cb5cc483: Pull complete 
    1a9014bafd27: Pull complete 
    d7ff42aa73d4: Pull complete 
    Digest: sha256:16aea78a24ad0c562e63fe3060d3ce85f96101ecd1db09b67b1ccd9bff7dfe4d
    Status: Downloaded newer image for gcc:latest
     ---> 74afbe6d78a1
    Step 2/5 : COPY . /build
     ---> 5c8449b50bb9
    Step 3/5 : WORKDIR /build/
     ---> Running in 821db3d73da8
     ---> Removed intermediate container 821db3d73da8
     ---> b6fb3ea1b178
    Step 4/5 : RUN gcc -o main main.c
     ---> Running in 5033bc4e8723
     ---> Removed intermediate container 5033bc4e8723
     ---> e686a8e707a2
    Step 5/5 : CMD [“./main”]
     ---> Running in e51cd5d36d82
     ---> Removed intermediate container e51cd5d36d82
     ---> aa4223676951
    Successfully built aa4223676951
    Successfully tagged main-gcc-app:latest

5. Check is docker image is built "docker image ls"

6. Run docker image "docker run -it main-gcc-app" Hello world will be displayed.
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