Try new syntax for telegraf ports, SC-2522

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

@@ -1264,7 +1264,7 @@ log-qa-sto1-1.komreg.net:
    sunet::dockerhost2:
    eid::telegraf2:
       server_type: 'log'
-      ports: '127.0.0.1:9999:9999'
+      ports: ['127.0.0.1:9999:9999']
    sunet::fticks:
       args: -j
       url: http://127.0.0.1:9999/telegraf

global/overlay/etc/puppet/modules/eid/manifests/telegraf2.pp

@@ -3,7 +3,7 @@
 # @param version                 Version of the docker image to use. (referenced in compose file)
 # @param server_fqdn             The FQDN of the server. (referenced in compose file)
 # @param server_type             Type of server, used in compose for config differentiation
-# @param ports                   Port mappings for container
+# @param ports                   Port mappings for container to override default
 # @param service_dir             The directory where all related config and files are stored. (referenced in compose file)
 # @param influx_urls             List of influxdb urls to send data to
 # @param influxdb2_org           Influx organization (referenced in compose file)

global/overlay/etc/puppet/modules/eid/templates/telegraf2/docker-compose.yml.erb

@@ -13,7 +13,9 @@ services:
       - '<%= @service_dir %>:<%= @service_dir %>'
       - '/var/run/utmp:/var/run/utmp:ro'
 
-<% if @ports != [] -%>
+<% if @ports != '' -%>
     ports:
-      - <%= @ports %>
+<% @ports.each do |port| -%>
+      - <%= port %>
+<% end -%>
 <% end -%>