use docker alpine image to optimize image size

Author: neel1996

Dockerfile

@@ -1,24 +1,18 @@
-FROM golang:1.16.0
+FROM golang:1.16.0-alpine
 
 WORKDIR /go/src/github.com/neel1996/gitconvex-server
 
 COPY . .
 
-# Install required packages from apt-get
-RUN apt-get update && \
-    apt-get install apt-transport-https ca-certificates gnupg software-properties-common wget sudo -y && \
-    apt-add-repository 'deb https://apt.kitware.com/ubuntu/ focal main' && \
-    wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | gpg --dearmor - | sudo tee /etc/apt/trusted.gpg.d/kitware.gpg >/dev/null && \
-    apt-get install cmake -y
-
-# Install node js
-RUN curl -fsSL https://deb.nodesource.com/setup_15.x | sudo -E bash - && \
-    apt-get install nodejs -y
+# Install required packages
+RUN apk update && \
+    apk add --update libgit2-dev libssh2-dev gcc make nodejs npm musl-dev
 
 # Building React UI bundle
 RUN cd ui/ && \
     npm install && \
     export NODE_ENV=production && \
+    npm i -g npm@6 && \
     npm install tailwindcss postcss autoprefixer && \
     npx tailwindcss build -o src/index.css -c src/tailwind.config.js && \
     npm run build && \
@@ -27,35 +21,8 @@ RUN cd ui/ && \
     cd .. && \
     rm -rf ui/
 
-# Download and build OpenSSL
-RUN cd ~ && git clone https://github.com/openssl/openssl.git && \
-    cd openssl && ./Configure && \
-    make && make install && \
-    cp -rp *.so* /usr/lib/
-
-# Download libssh2
-RUN cd ~ && wget https://github.com/libssh2/libssh2/releases/download/libssh2-1.9.0/libssh2-1.9.0.tar.gz && \
-    tar -xzf libssh2-1.9.0.tar.gz && \
-    cd libssh2-1.9.0/ && \
-    mkdir build && cd build && \
-    cmake -DCMAKE_C_COMPILER=gcc -DCMAKE_INSTALL_PREFIX=../install .. && cmake --build . --target install
-
-# Download and Libgit2 setup
-RUN cd ~ && wget https://github.com/libgit2/libgit2/releases/download/v1.1.0/libgit2-1.1.0.tar.gz && \
-    tar -xzf libgit2-1.1.0.tar.gz && \
-    cd libgit2-1.1.0/ && \
-    mkdir build && cd build && \
-    cmake -DCMAKE_PREFIX_PATH=../../libssh2-1.9.0/install/ -DCMAKE_INSTALL_PREFIX=../install -DBUILD_CLAR=OFF .. && \
-    cmake --build . --target install && \
-    make install && \
-    cp -rp ~/libgit2-1.1.0/install/include/* /usr/include/ && \
-    cp -rp ~/libgit2-1.1.0/install/lib/pkgconfig/* /usr/lib/pkgconfig && \
-    cp -rp ~/libgit2-1.1.0/install/lib/lib* /usr/lib/
-
-# Post Cleanup stage
-RUN apt-get remove cmake nodejs apt-transport-https ca-certificates gnupg software-properties-common wget -y
+RUN go get -v
 
 EXPOSE 9001
 
-CMD export PKG_CONFIG_PATH=/usr/local/lib && \
-    go run /go/src/github.com/neel1996/gitconvex-server/server.go
+CMD go run /go/src/github.com/neel1996/gitconvex-server/server.go