feat: prevent dynatrace one-agent injection

The extra resource consumption of the dynatrace one agent injection
into the containers causes problems with the default resource limits
and causes OOM kills. This prevents the injection.

Author: joshiste

charts/steadybit-extension-scaffold/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v2
 name: steadybit-extension-scaffold
 description: Steadybit scaffold extension Helm chart for Kubernetes.
-version: 1.0.24
+version: 1.0.25
 appVersion: latest
 home: https://www.steadybit.com/
 icon: https://steadybit-website-assets.s3.amazonaws.com/logo-symbol-transparent.png

charts/steadybit-extension-scaffold/templates/deployment.yaml

@@ -25,6 +25,7 @@ spec:
         {{- toYaml . | nindent 8 }}
         {{- end }}
       annotations:
+        oneagent.dynatrace.com/injection: "false"
         {{- with .Values.podAnnotations }}
         {{- toYaml . | nindent 8 }}
         {{- end }}

charts/steadybit-extension-scaffold/tests/__snapshot__/deployment_test.yaml.snap

@@ -17,6 +17,7 @@ manifest should match snapshot using podAnnotations and Labels:
       template:
         metadata:
           annotations:
+            oneagent.dynatrace.com/injection: "false"
             some-annotation: some-annotation-value
           labels:
             app.kubernetes.io/instance: RELEASE-NAME
@@ -89,7 +90,8 @@ manifest should match snapshot with TLS:
           app.kubernetes.io/name: steadybit-extension-scaffold
       template:
         metadata:
-          annotations: null
+          annotations:
+            oneagent.dynatrace.com/injection: "false"
           labels:
             app.kubernetes.io/instance: RELEASE-NAME
             app.kubernetes.io/name: steadybit-extension-scaffold
@@ -171,7 +173,8 @@ manifest should match snapshot with extra env vars:
           app.kubernetes.io/name: steadybit-extension-scaffold
       template:
         metadata:
-          annotations: null
+          annotations:
+            oneagent.dynatrace.com/injection: "false"
           labels:
             app.kubernetes.io/instance: RELEASE-NAME
             app.kubernetes.io/name: steadybit-extension-scaffold
@@ -250,7 +253,8 @@ manifest should match snapshot with extra labels:
           app.kubernetes.io/name: steadybit-extension-scaffold
       template:
         metadata:
-          annotations: null
+          annotations:
+            oneagent.dynatrace.com/injection: "false"
           labels:
             app.kubernetes.io/instance: RELEASE-NAME
             app.kubernetes.io/name: steadybit-extension-scaffold
@@ -322,7 +326,8 @@ manifest should match snapshot with mutual TLS:
           app.kubernetes.io/name: steadybit-extension-scaffold
       template:
         metadata:
-          annotations: null
+          annotations:
+            oneagent.dynatrace.com/injection: "false"
           labels:
             app.kubernetes.io/instance: RELEASE-NAME
             app.kubernetes.io/name: steadybit-extension-scaffold
@@ -413,7 +418,8 @@ manifest should match snapshot with mutual TLS using containerPaths:
           app.kubernetes.io/name: steadybit-extension-scaffold
       template:
         metadata:
-          annotations: null
+          annotations:
+            oneagent.dynatrace.com/injection: "false"
           labels:
             app.kubernetes.io/instance: RELEASE-NAME
             app.kubernetes.io/name: steadybit-extension-scaffold
@@ -490,7 +496,8 @@ manifest should match snapshot with podSecurityContext:
           app.kubernetes.io/name: steadybit-extension-scaffold
       template:
         metadata:
-          annotations: null
+          annotations:
+            oneagent.dynatrace.com/injection: "false"
           labels:
             app.kubernetes.io/instance: RELEASE-NAME
             app.kubernetes.io/name: steadybit-extension-scaffold
@@ -563,7 +570,8 @@ manifest should match snapshot with priority class:
           app.kubernetes.io/name: steadybit-extension-scaffold
       template:
         metadata:
-          annotations: null
+          annotations:
+            oneagent.dynatrace.com/injection: "false"
           labels:
             app.kubernetes.io/instance: RELEASE-NAME
             app.kubernetes.io/name: steadybit-extension-scaffold
@@ -635,7 +643,8 @@ manifest should match snapshot without TLS:
           app.kubernetes.io/name: steadybit-extension-scaffold
       template:
         metadata:
-          annotations: null
+          annotations:
+            oneagent.dynatrace.com/injection: "false"
           labels:
             app.kubernetes.io/instance: RELEASE-NAME
             app.kubernetes.io/name: steadybit-extension-scaffold