Mas sencillo

start.sh

@@ -4,18 +4,7 @@ trap 'exit 1' ERR
 
 if ! which docker > /dev/null 2>&1
 then
-    echo 'Can not find Docker. Make sure it is installed.'
-    if grep -q Debian /etc/issue
-    then
-        echo Consider
-        echo 'echo deb "[arch=amd64] https://download.docker.com/linux/debian stretch stable" > /etc/apt/sources.list.d/docker.list'
-        echo 'apt update'
-        echo 'apt install docker-ce-cli'
-        if grep -vq swapaccount=1 /etc/default/grub
-        then
-            echo 'Also, you should read https://docs.docker.com/install/linux/linux-postinstall/#your-kernel-does-not-support-cgroup-swap-limit-capabilities'
-        fi
-    fi
+    echo 'Can not find Docker. Make sure it is installed.' >&2
     exit 1
 fi