Add OpenTelemetry flags for deployments (#147)

Chart.yaml

@@ -15,7 +15,7 @@ type: application
 # This is the chart version. This version number should be incremented each time
 # you make changes to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 5.2.0
+version: 5.3.0
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to

templates/deployment-sidekiq.yaml

@@ -186,6 +186,12 @@ spec:
                   name: {{ $context.Values.mastodon.cacheBuster.authToken.existingSecret }}
                   key: password
             {{- end }}
+            {{- if or $context.Values.mastodon.sidekiq.otel.enabled (and $context.Values.mastodon.otel.enabled (ne $context.Values.mastodon.sidekiq.otel.enabled false)) }}
+            - name: OTEL_EXPORTER_OTLP_ENDPOINT
+              value: {{ coalesce $context.Values.mastodon.sidekiq.otel.endpointUri $context.Values.mastodon.otel.endpointUri }}
+            - name: OTEL_SERVICE_NAME_PREFIX
+              value: {{ coalesce $context.Values.mastodon.sidekiq.otel.namePrefix $context.Values.mastodon.otel.namePrefix }}
+            {{- end }}
           volumeMounts:
           {{- if (not $context.Values.mastodon.s3.enabled) }}
             - name: assets

templates/deployment-web.yaml

@@ -176,6 +176,12 @@ spec:
                   name: {{ .Values.mastodon.cacheBuster.authToken.existingSecret }}
                   key: password
             {{- end }}
+            {{- if or .Values.mastodon.web.otel.enabled (and .Values.mastodon.otel.enabled (ne .Values.mastodon.web.otel.enabled false)) }}
+            - name: OTEL_EXPORTER_OTLP_ENDPOINT
+              value: {{ coalesce .Values.mastodon.web.otel.endpointUri .Values.mastodon.otel.endpointUri }}
+            - name: OTEL_SERVICE_NAME_PREFIX
+              value: {{ coalesce .Values.mastodon.web.otel.namePrefix .Values.mastodon.otel.namePrefix }}
+            {{- end }}
           volumeMounts:
           {{- if (not .Values.mastodon.s3.enabled) }}
             - name: assets

values.yaml

@@ -164,6 +164,13 @@ mastodon:
     # requests:
     #   cpu: 250m
     #   memory: 512Mi
+
+    # Open Telemetry configuration for sidekiq pods. Overrides global settings.
+    otel:
+      enabled:
+      exporterUri:
+      namePrefix:
+
     workers:
       - name: all-queues
         # -- Number of threads / parallel sidekiq jobs that are executed per Pod
@@ -333,6 +340,12 @@ mastodon:
         name:
         key:
 
+    # Open Telemetry configuration for web pods. Overrides global settings.
+    otel:
+      enabled:
+      exporterUri:
+      namePrefix:
+
   # HTTP cache buster configuration.
   # See the documentation for more information about this feature:
   # https://docs.joinmastodon.org/admin/config/#http-cache-buster
@@ -355,6 +368,13 @@ mastodon:
         enabled: false
         port: 9102
 
+  # Open Telemetry configuration for all deployments. Component-specific
+  # configuration will override these values.
+  otel:
+    enabled: false
+    exporterUri:
+    namePrefix: mastodon
+
   # Sets the PREPARED_STATEMENTS environment variable: https://docs.joinmastodon.org/admin/config/#prepared_statements
   preparedStatements: true