v-m: Scrape Grafana Loki

Grafana Loki is hosted on a VM named *loki0.pyrocufflink.blue*.  It runs
Fedora CoreOS, so in addition to scraping Loki itself, we need to scrape
_collectd_ and _Zincati_ as well.

victoria-metrics/kustomization.yaml

@@ -22,6 +22,7 @@ resources:
 - alertmanager.yaml
 - blackbox-exporter.yaml
 - ingress.yaml
+- ../dch-root-ca
 
 configMapGenerator:
 - name: vmagent
@@ -137,6 +138,9 @@ patches:
                   key: graylog.token
                   optional: true
             volumeMounts:
+            - mountPath: /run/dch-ca
+              name: dch-ca
+              readOnly: true
             - mountPath: /run/secrets/vmagent
               name: secrets
               readOnly: true
@@ -151,6 +155,10 @@ patches:
           - name: secrets
             secret:
               secretName: vmagent
+          - name: dch-ca
+            configMap:
+              name: dch-root-ca
+              optional: true
 
 - patch: |
     apiVersion: apps/v1