add fallback scrape protocols

chart/templates/gitlab/_postrenderers.tpl

+{{- define "gitlab.serviceMonitorPostRenderers" }}
+- kustomize:
+    patches:
+      - patch: |
+          - op: add
+            path: /spec/fallbackScrapeProtocol
+            value: PrometheusText1.0.0
+        target:
+          kind: ServiceMonitor
+          name: gitlab-gitlab-exporter
+{{- end }}

chart/templates/gitlab/helmrelease.yaml

@@ -41,10 +41,14 @@ spec:
 
 
   {{- toYaml $fluxSettingsGitlab | nindent 2 }}
-
-  {{- if .Values.addons.gitlab.postRenderers }}
+  {{- if or .Values.addons.gitlab.postRenderers .Values.monitoring.enabled }}
   postRenderers:
-  {{ toYaml .Values.addons.gitlab.postRenderers | nindent 4 }}
+  {{- if .Values.monitoring.enabled }}
+  {{ include "gitlab.serviceMonitorPostRenderers" . | nindent 4 }}
+  {{- end }}
+  {{- with .Values.addons.gitlab.postRenderers }}
+  {{ toYaml . | nindent 4 }}
+  {{- end }}
   {{- end }}
   valuesFrom:
     - name: {{ .Release.Name }}-gitlab-values

chart/templates/monitoring/values.yaml

@@ -109,6 +109,7 @@ alertmanager:
     {{- end }}
   {{- if and .Values.istio.enabled (eq (dig "istio" "mtls" "mode" "STRICT" .Values.monitoring.values) "STRICT") }}
   serviceMonitor:
+    fallbackScrapeProtocol: "PrometheusText1.0.0"
     scheme: https
     tlsConfig:
       caFile: /etc/prom-certs/root-cert.pem
@@ -140,6 +141,7 @@ prometheus:
     enabled: true
     {{- if and .Values.istio.enabled (eq (dig "istio" "mtls" "mode" "STRICT" .Values.monitoring.values) "STRICT") }}
     serviceMonitor:
+    fallbackScrapeProtocol: "PrometheusText1.0.0"
       scheme: https
       tlsConfig:
         caFile: /etc/prom-certs/root-cert.pem
@@ -254,6 +256,7 @@ prometheus:
     {{- if .Values.addons.vault.enabled }}
     additionalScrapeConfigs:
     - job_name: vault
+      fallback_scrape_protocol: PrometheusText1.0.0
       metrics_path: /v1/sys/metrics
       params:
         format: ['prometheus']
@@ -282,6 +285,7 @@ prometheus:
     # service then set this appropriately.
     {{- if (dig "globalServiceEndpointMetrics" "enabled" false .Values.monitoring) }}
     - job_name: 'kubernetes-service-endpoints'
+      fallback_scrape_protocol: PrometheusText1.0.0
       kubernetes_sd_configs:
         - role: endpoints
       scheme: https
@@ -335,6 +339,8 @@ prometheus:
     {{- if (dig "globalPodEndpointMetrics" "enabled" false .Values.monitoring) }}
     - job_name: 'kubernetes-pods'
 
+      fallback_scrape_protocol: PrometheusText1.0.0
+
       kubernetes_sd_configs:
         - role: pod