[operator] Allow adding custom annotations to various objects

Similar to `additionalLabels`, but for annotations. This is somewhat inspired by `cert-manager`s Helm chart [1], which allows custom annotations on essentially all Kubernetes objects. E.g. there could be internal annotations in certain environments that are recommended or required [1]: https://artifacthub.io/packages/helm/cert-manager/cert-manager
open-telemetry · Mar 19, 2024 · d457326 · d457326
1 parent 2ef00ab
commit d457326
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diff --git a/charts/opentelemetry-operator/templates/deployment.yaml b/charts/opentelemetry-operator/templates/deployment.yaml
@@ -1,6 +1,10 @@
 apiVersion: apps/v1
 kind: Deployment
 metadata:
+  {{- with .Values.manager.deploymentAnnotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
   labels:
     {{- include "opentelemetry-operator.labels" . | nindent 4 }}
     app.kubernetes.io/component: controller-manager

diff --git a/charts/opentelemetry-operator/templates/service.yaml b/charts/opentelemetry-operator/templates/service.yaml
@@ -1,6 +1,10 @@
 apiVersion: v1
 kind: Service
 metadata:
+  {{- with .Values.manager.serviceAnnotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
   labels:
     {{- include "opentelemetry-operator.labels" . | nindent 4 }}
     app.kubernetes.io/component: controller-manager
@@ -27,6 +31,10 @@ spec:
 apiVersion: v1
 kind: Service
 metadata:
+  {{- with .Values.admissionWebhooks.serviceAnnotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
   labels:
     {{- include "opentelemetry-operator.labels" . | nindent 4 }}
     app.kubernetes.io/component: controller-manager

diff --git a/charts/opentelemetry-operator/values.schema.json b/charts/opentelemetry-operator/values.schema.json
@@ -111,6 +111,8 @@
                 "env",
                 "serviceAccount",
                 "serviceMonitor",
+                "deploymentAnnotations",
+                "serviceAnnotations",
                 "podAnnotations",
                 "podLabels",
                 "prometheusRule",
@@ -693,6 +695,22 @@
                         }]
                     }]
                 },
+                "deploymentAnnotations": {
+                    "type": "object",
+                    "default": {},
+                    "title": "The deploymentAnnotations Schema",
+                    "required": [],
+                    "properties": {},
+                    "examples": [{}]
+                },
+                "serviceAnnotations": {
+                    "type": "object",
+                    "default": {},
+                    "title": "The serviceAnnotations Schema",
+                    "required": [],
+                    "properties": {},
+                    "examples": [{}]
+                },
                 "podAnnotations": {
                     "type": "object",
                     "default": {},
@@ -1232,6 +1250,7 @@
                 "cert_file",
                 "key_file",
                 "ca_file",
+                "serviceAnnotations",
                 "secretAnnotations",
                 "secretLabels"
             ],
@@ -1427,6 +1446,14 @@
                         ""
                     ]
                 },
+                "serviceAnnotations": {
+                    "type": "object",
+                    "default": {},
+                    "title": "The serviceAnnotations Schema",
+                    "required": [],
+                    "properties": {},
+                    "examples": [{}]
+                },
                 "secretAnnotations": {
                     "type": "object",
                     "default": {},

diff --git a/charts/opentelemetry-operator/values.yaml b/charts/opentelemetry-operator/values.yaml
@@ -97,6 +97,11 @@ manager:
     metricsEndpoints:
     - port: metrics
 
+  # Adds additional annotations to the manager Deployment
+  deploymentAnnotations: {}
+  # Adds additional annotations to the manager Service
+  serviceAnnotations: {}
+
   podAnnotations: {}
   podLabels: {}
 
@@ -239,6 +244,9 @@ admissionWebhooks:
   ## Path to the CA cert.
   ca_file: ""
 
+  # Adds additional annotations to the admissionWebhook Service
+  serviceAnnotations: {}
+
   ## Secret annotations
   secretAnnotations: {}
   ## Secret labels