Dockerfile cleanup with DotNetCore 2.2

Dockerfile

@@ -1,28 +1,32 @@
-FROM mcr.microsoft.com/dotnet/core/sdk:3.1.301
+FROM mcr.microsoft.com/dotnet/core/sdk:2.2.207
 
 # Dockerfile meta-information
 LABEL maintainer="NOS Inovação S.A." \
     app_name="dotnet-sonar"
 
-# Reviewing this choices
 ENV SONAR_SCANNER_MSBUILD_VERSION=4.10.0.19059 \
-    DOTNETCORE_SDK=3.1.301 \
-    DOTNETCORE_RUNTIME=3.1.5 \
-    DOCKER_VERSION=5:19.03.12~3-0~debian-buster \
-    CONTAINERD_VERSION=1.2.13-2
-
+    DOTNETCORE_SDK=2.2.207 \
+    DOTNETCORE_RUNTIME=2.2.8 \
+    NETCOREAPP_VERSION=netcoreapp2.0 \
+    DOCKER_VERSION=5:19.03.2~3-0~debian-stretch \
+    CONTAINERD_VERSION=1.2.13-2 \
+    OPENJDK_VERSION=8
+
+# Linux update
 RUN apt-get update \
-    && apt-get dist-upgrade -y
-
-# Install all necessary additional software (utils, jre, docker binaries)
-RUN apt-get install -y \
-        openjdk-11-jre \
+    && apt-get dist-upgrade -y \
+    && apt-get install -y \
         apt-transport-https \
         ca-certificates \
         curl \
         gnupg-agent \
-        software-properties-common \
-    && curl -fsSL https://download.docker.com/linux/debian/gpg | apt-key add - \
+        software-properties-common
+
+# Install Java
+RUN apt-get install -y openjdk-$OPENJDK_VERSION-jre
+
+# Install all necessary additional software
+RUN curl -fsSL https://download.docker.com/linux/debian/gpg | apt-key add - \
     && apt-key fingerprint 0EBFCD88 \
     && add-apt-repository \
         "deb [arch=amd64] https://download.docker.com/linux/debian \
@@ -34,33 +38,14 @@ RUN apt-get install -y \
         docker-ce-cli=$DOCKER_VERSION \
         containerd.io=$CONTAINERD_VERSION
 
-# install nodejs
-RUN curl -sL https://deb.nodesource.com/setup_12.x | bash - \
-    && apt-get install -y \
-        nodejs \
-        autoconf \
-        libtool \
-        nasm
-
-# Register Microsoft key and feed
-RUN wget -q https://packages.microsoft.com/config/ubuntu/19.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb \
-    && dpkg -i packages-microsoft-prod.deb
-
-# Install DotNetCore 3.1 Runtime-Only for SonarScanner
-RUN apt-get update -y \
-    && apt-get install apt-transport-https -y \
-    && apt-get update -y \
-    && apt-get install aspnetcore-runtime-3.1 -y
-
 # Install Sonar Scanner
 RUN apt-get install -y unzip \
-    && wget https://github.com/SonarSource/sonar-scanner-msbuild/releases/download/$SONAR_SCANNER_MSBUILD_VERSION/sonar-scanner-msbuild-$SONAR_SCANNER_MSBUILD_VERSION-netcoreapp3.0.zip \
-    && unzip sonar-scanner-msbuild-$SONAR_SCANNER_MSBUILD_VERSION-netcoreapp3.0.zip -d /sonar-scanner \
-    && rm sonar-scanner-msbuild-$SONAR_SCANNER_MSBUILD_VERSION-netcoreapp3.0.zip \
+    && wget https://github.com/SonarSource/sonar-scanner-msbuild/releases/download/$SONAR_SCANNER_MSBUILD_VERSION/sonar-scanner-msbuild-$SONAR_SCANNER_MSBUILD_VERSION-$NETCOREAPP_VERSION.zip \
+    && unzip sonar-scanner-msbuild-$SONAR_SCANNER_MSBUILD_VERSION-$NETCOREAPP_VERSION.zip -d /sonar-scanner \
+    && rm sonar-scanner-msbuild-$SONAR_SCANNER_MSBUILD_VERSION-$NETCOREAPP_VERSION.zip \
     && chmod +x -R /sonar-scanner
 
 # Cleanup
 RUN apt-get -q autoremove \
     && apt-get -q clean -y \
     && rm -rf /var/lib/apt/lists/* /var/cache/apt/*.bin
-