+ support docker install on ubuntu system (with appropriate gpg key and apt-repo)

install-docker.sh

@@ -5,15 +5,23 @@ if [[ -z "${SERVER}" ]]; then echo 'No SERVER'; exit 1; fi
 
 #https://docs.docker.com/engine/install/debian/
 
+TARGET_OS=debian
+
+if [[ "$2" -eq "ubuntu" ]]; then
+  TARGET_OS=ubuntu
+fi
+
+echo "Choosen OS: ${TARGET_OS}"
+
 ssh root@${SERVER} bash -- << EOF
 set -e
 apt update -qq
 apt-get install ca-certificates curl -qq
 install -m 0755 -d /etc/apt/keyrings
-curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc
+curl -fsSL https://download.docker.com/linux/${TARGET_OS}/gpg -o /etc/apt/keyrings/docker.asc
 chmod a+r /etc/apt/keyrings/docker.asc
 echo \
-  "deb [arch=\$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian \
+  "deb [arch=\$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/${TARGET_OS} \
   \$(. /etc/os-release && echo "\$VERSION_CODENAME") stable" | \
   tee /etc/apt/sources.list.d/docker.list > /dev/null
 apt update -qq