add kyverno policies

Signed-off-by: gwg313 <gwg313@pm.me>

platform/kyverno/policies/10-defaults/default-container-resources.yaml

@@ -0,0 +1,42 @@
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: default-container-resources
+spec:
+  background: true
+
+  rules:
+    - name: default-container-resources
+      match:
+        any:
+          - resources:
+              kinds:
+                - Pod
+
+      mutate:
+        foreach:
+          - list: "request.object.spec.containers"
+            patchStrategicMerge:
+              spec:
+                containers:
+                  - (name): "{{ element.name }}"
+                    resources:
+                      requests:
+                        +(cpu): "100m"
+                        +(memory): "128Mi"
+                      limits:
+                        +(cpu): "200m"
+                        +(memory): "512Mi"
+
+          - list: "request.object.spec.initContainers || []"
+            patchStrategicMerge:
+              spec:
+                initContainers:
+                  - (name): "{{ element.name }}"
+                    resources:
+                      requests:
+                        +(cpu): "100m"
+                        +(memory): "128Mi"
+                      limits:
+                        +(cpu): "200m"
+                        +(memory): "512Mi"

platform/kyverno/policies/10-defaults/default-cronjob-history.yaml

@@ -0,0 +1,18 @@
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: default-cronjob-history
+spec:
+  rules:
+    - name: set-cronjob-history
+      match:
+        any:
+          - resources:
+              kinds:
+                - CronJob
+
+      mutate:
+        patchStrategicMerge:
+          spec:
+            +(successfulJobsHistoryLimit): 1
+            +(failedJobsHistoryLimit): 2

platform/kyverno/policies/10-defaults/default-deployment-revision-history.yaml

@@ -0,0 +1,17 @@
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: default-deployment-revision-history
+spec:
+  rules:
+    - name: set-revision-history-limit
+      match:
+        any:
+          - resources:
+              kinds:
+                - Deployment
+
+      mutate:
+        patchStrategicMerge:
+          spec:
+            +(revisionHistoryLimit): 3

platform/kyverno/policies/10-defaults/default-drop-all-capabilities.yaml

@@ -0,0 +1,36 @@
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: default-drop-all-capabilities
+spec:
+  background: true
+
+  rules:
+    - name: default-drop-all-capabilities
+      match:
+        any:
+          - resources:
+              kinds:
+                - Pod
+
+      mutate:
+        foreach:
+          - list: "request.object.spec.containers"
+            patchStrategicMerge:
+              spec:
+                containers:
+                  - (name): "{{ element.name }}"
+                    securityContext:
+                      +(capabilities):
+                        drop:
+                          - ALL
+
+          - list: "request.object.spec.initContainers || []"
+            patchStrategicMerge:
+              spec:
+                initContainers:
+                  - (name): "{{ element.name }}"
+                    securityContext:
+                      +(capabilities):
+                        drop:
+                          - ALL

platform/kyverno/policies/10-defaults/default-job-ttl.yaml

@@ -0,0 +1,17 @@
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: default-job-ttl
+spec:
+  rules:
+    - name: set-job-ttl
+      match:
+        any:
+          - resources:
+              kinds:
+                - Job
+
+      mutate:
+        patchStrategicMerge:
+          spec:
+            +(ttlSecondsAfterFinished): 86400

platform/kyverno/policies/10-defaults/default-run-as-non-root.yaml

@@ -0,0 +1,46 @@
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: default-run-as-non-root
+spec:
+  background: true
+
+  rules:
+
+    - name: default-pod-run-as-non-root
+      match:
+        any:
+          - resources:
+              kinds:
+                - Pod
+
+      mutate:
+        patchStrategicMerge:
+          spec:
+            securityContext:
+              +(runAsNonRoot): true
+
+    - name: default-container-run-as-non-root
+      match:
+        any:
+          - resources:
+              kinds:
+                - Pod
+
+      mutate:
+        foreach:
+          - list: "request.object.spec.containers"
+            patchStrategicMerge:
+              spec:
+                containers:
+                  - (name): "{{ element.name }}"
+                    securityContext:
+                      +(runAsNonRoot): true
+
+          - list: "request.object.spec.initContainers || []"
+            patchStrategicMerge:
+              spec:
+                initContainers:
+                  - (name): "{{ element.name }}"
+                    securityContext:
+                      +(runAsNonRoot): true

platform/kyverno/policies/10-defaults/default-seccomp-runtime-default.yaml

@@ -0,0 +1,49 @@
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: default-seccomp-runtime-default
+
+spec:
+  background: true
+
+  rules:
+    - name: default-pod-seccomp-runtime-default
+      match:
+        any:
+          - resources:
+              kinds:
+                - Pod
+
+      mutate:
+        patchStrategicMerge:
+          spec:
+            securityContext:
+              seccompProfile:
+                type: RuntimeDefault
+
+    - name: default-container-seccomp-runtime-default
+      match:
+        any:
+          - resources:
+              kinds:
+                - Pod
+
+      mutate:
+        foreach:
+          - list: "request.object.spec.containers"
+            patchStrategicMerge:
+              spec:
+                containers:
+                  - (name): "{{ element.name }}"
+                    securityContext:
+                      seccompProfile:
+                        type: RuntimeDefault
+
+          - list: "request.object.spec.initContainers || []"
+            patchStrategicMerge:
+              spec:
+                initContainers:
+                  - (name): "{{ element.name }}"
+                    securityContext:
+                      seccompProfile:
+                        type: RuntimeDefault

platform/kyverno/policies/10-defaults/kustomization.yaml

@@ -0,0 +1,18 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - default-container-resources.yaml
+  - default-cronjob-history.yaml
+  - default-deployment-revision-history.yaml
+  - default-drop-all-capabilities.yaml
+  - default-job-ttl.yaml
+  - default-run-as-non-root.yaml
+  - default-seccomp-runtime-default.yaml
+
+commonLabels:
+  app.kubernetes.io/part-of: kyverno-policies
+  policy-tier: defaults
+
+commonAnnotations:
+  argocd.argoproj.io/sync-wave: "0"