be more fair to legacy and also hide puppet complexity

policy/tpa-rfc-33-monitoring/Makefile

+FILES=architecture-after.png architecture-before.png
+
+.PHONY: all
+all: $(FILES)
+
+%.svg: %.dot
+	dot -Tsvg $< > $@
+
+%.png: %.dot
+	dot -Tpng $< > $@

policy/tpa-rfc-33-monitoring/architecture-after.dot

 digraph before {
-        label="TPA monitoring infrastructure, planned 2024-2025\nGrafana, Prometheus, Alertmanager configurations pulled from GitLab, not shown\nOther configuration pulled from Puppet and LDAP, not shown"
+        label="TPA monitoring infrastructure, planned 2024-2025\nGrafana, Prometheus, Alertmanager configurations pulled from GitLab and Puppet, not shown\nOther configuration pulled from Puppet and LDAP, not shown"
         labelloc=bottom
         graph [ fontname=Liberation fontsize=14 ];
         node [ fontname=Liberaion ];

policy/tpa-rfc-33-monitoring/architecture-before.dot

 digraph before {
-        label="TPA monitoring infrastructure, May 2024"
+        label="TPA monitoring infrastructure, May 2024\nGrafana, Prometheus, Alertmanager configurations pulled from GitLab and Puppet, not shown\nNRPE configuration pulled from Puppet, not shown"
         labelloc=bottom
         graph [ fontname=Liberation fontsize=14 ];
         node [ fontname=Liberaion ];
@@ -26,14 +26,11 @@ digraph before {
         email
         IRC
         Puppet
-        GitLab
         "node exporters"
-        GitLab -> { Alertmanager, Prometheus2, Grafana1 } [arrowtail=inv, dir=back]
         "node exporters" -> Prometheus1 -> Grafana1 [arrowtail=inv, dir=back]
         { "other exporters", blackbox } -> Prometheus2 -> Grafana2 [arrowtail=inv, dir=back]
         Prometheus2 -> Alertmanager
 
-        Puppet -> { blackbox, Alertmanager, Grafana1, Prometheus1, Grafana2, Prometheus2, "node exporters", NRPE } [arrowtail=inv, dir=back]
         Nagios -> Puppet
 
         Nagios -> { email, IRC }