Workaround issue with Prometheus 3.0 and metrics (#577)

* Add "fallbackScrapeProtocol: PrometheusText0.0.4" to all pod monitors

Author: lhotari

charts/pulsar/templates/autorecovery-podmonitor.yaml

@@ -30,6 +30,7 @@ metadata:
     heritage: {{ .Release.Service }}
 spec:
   jobLabel: recovery
+  fallbackScrapeProtocol: PrometheusText0.0.4
   podMetricsEndpoints:
     - port: http
       path: /metrics

charts/pulsar/templates/bookkeeper-podmonitor.yaml

@@ -30,6 +30,7 @@ metadata:
     heritage: {{ .Release.Service }}
 spec:
   jobLabel: bookie
+  fallbackScrapeProtocol: PrometheusText0.0.4
   podMetricsEndpoints:
     - port: http
       path: /metrics

charts/pulsar/templates/broker-podmonitor.yaml

@@ -30,6 +30,7 @@ metadata:
     heritage: {{ .Release.Service }}
 spec:
   jobLabel: broker
+  fallbackScrapeProtocol: PrometheusText0.0.4
   podMetricsEndpoints:
     - port: http
       path: /metrics

charts/pulsar/templates/oxia-coordinator-podmonitor.yaml

@@ -30,6 +30,7 @@ metadata:
     heritage: {{ .Release.Service }}
 spec:
   jobLabel: oxia-coordinator
+  fallbackScrapeProtocol: PrometheusText0.0.4
   podMetricsEndpoints:
     - port: metrics
       path: /metrics

charts/pulsar/templates/oxia-server-podmonitor.yaml

@@ -30,6 +30,7 @@ metadata:
     heritage: {{ .Release.Service }}
 spec:
   jobLabel: oxia-server
+  fallbackScrapeProtocol: PrometheusText0.0.4
   podMetricsEndpoints:
     - port: metrics
       path: /metrics

charts/pulsar/templates/proxy-podmonitor.yaml

@@ -30,6 +30,7 @@ metadata:
     heritage: {{ .Release.Service }}
 spec:
   jobLabel: proxy
+  fallbackScrapeProtocol: PrometheusText0.0.4
   podMetricsEndpoints:
     - port: http
       path: /metrics

charts/pulsar/templates/zookeeper-podmonitor.yaml

@@ -31,6 +31,7 @@ metadata:
     heritage: {{ .Release.Service }}
 spec:
   jobLabel: zookeeper
+  fallbackScrapeProtocol: PrometheusText0.0.4
   podMetricsEndpoints:
     - port: http
       path: /metrics