Bring current version to 2021.11

Dockerfile

@@ -1,5 +1,8 @@
 FROM ubuntu:18.04
 
+USER root
+WORKDIR /root
+
 # Prepare OS
 COPY setup-os.sh /root
 RUN /root/setup-os.sh

README.md

@@ -2,12 +2,12 @@ Dockerized version of the distribution available at https://imply.io/download.
 
 [Install Docker](docker-install.md)
 
-To build an image, first download the Imply distribution from the link above, place it in the cloned repository, and then run:
+To build an image, first download the Imply distribution from the link above, place it in the cloned repository, and then run: 
 
 ```
-export implyversion=2.5.8
+export implyversion=2021.11
 tar -xzf imply-$implyversion.tar.gz
-docker build -t imply:$implyversion --build-arg implyversion=$implyversion .
+docker build -t imply:$implyversion --build-arg implyversion=$implyversion . --platform amd64
 ```
 
 To run the image in quickstart mode (single-machine, non-clustered):

setup-os.sh

@@ -9,51 +9,26 @@ apt-get -y upgrade
 apt-get -y install --no-install-recommends \
                    curl apt-transport-https \
                    python python2.7 perl \
-                   software-properties-common gnupg2 jq vim less
+                   software-properties-common gnupg2 jq vim less 
 
-#
-# Sync Java (Azul Zulu) repository
-#
 
-apt-key add - <<'EOT'
------BEGIN PGP PUBLIC KEY BLOCK-----
-Version: SKS 1.1.6
-Comment: Hostname: keyserver.ubuntu.com
+# add Azul's public key
+apt-key adv \
+  --keyserver hkp://keyserver.ubuntu.com:80 \
+  --recv-keys 0xB1998361219BD9C9
 
-mQINBFNgFa8BEADTL/REB10M+TfiZOtFHqL5LHKkzTMn/O2r5iIqXGhi6iwZazFs9S5g1eU7
-WMen5Xp9AREs+OvaHx91onPZ7ZiP7VpZ6ZdwWrnVk1Y/HfI59tWxmNYWDmKYBGMj4EUpFPSE
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-iDD1PhEBrqCIqSE3U497vibQMpkkl/Zpp0BirhGWNyTg8K4JrsQ=
-=d320
------END PGP PUBLIC KEY BLOCK-----
-EOT
+# download and install the package that adds 
+# the Azul APT repository to the list of sources 
+curl -O https://cdn.azul.com/zulu/bin/zulu-repo_1.0.0-3_all.deb
 
-echo "deb http://repos.azulsystems.com/debian stable main" > /etc/apt/sources.list.d/zulu.list
-
-#
-# Java
-#
+# install the package
+apt-get install ./zulu-repo_1.0.0-3_all.deb
 
+# update the package sources
 apt-get update
-apt-get -y install zulu-8
+
+apt-get -y install zulu8-jdk
+
 
 #
 # Housekeeping