added new image for ubuntu 18 & upgraded docker version

global/overlay/etc/puppet/cosmos-rules.yaml

@@ -166,6 +166,7 @@ kvmeidas-tug-3.komreg.net:
             description: 'eid tug redis cluster'
             cpus: '8'
             memory: '8192'
+            image_url: 'https://cloud-images.ubuntu.com/bionic/current/bionic-server-cloudimg-amd64.img'
          eidas-redis-4.sveidas.se:
             mac: '52:54:20:02:04:06'
             ip: '94.176.224.10'
@@ -799,6 +800,7 @@ test-1.test.sveidas.se:
 
 '^eidas-redis-[0-9]\.sveidas\.se$':
    eid::dockerhost:
+      version: '5:20.10.8~3-0~ubuntu-bionic'
    autoupdate:
    redis_cluster_node: