diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 96892890a62..dfb676ca3e8 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -50,3 +50,13 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
           labels: kind/bug
           body: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}
+
+  yamllint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: yaml-lint
+        uses: ibiqlik/action-yamllint@v3
+        with:
+          file_or_dir: testdata
+          config_data: "{extends: relaxed, rules: {line-length: {max: 120}}}"
\ No newline at end of file
diff --git a/pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/certmanager/kustomizeconfig.go b/pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/certmanager/kustomizeconfig.go
index 02bda5e7341..c89e1f9a585 100644
--- a/pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/certmanager/kustomizeconfig.go
+++ b/pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/certmanager/kustomizeconfig.go
@@ -44,7 +44,7 @@ func (f *KustomizeConfig) SetTemplateDefaults() error {
 }
 
 //nolint:lll
-const kustomizeConfigTemplate = `# This configuration is for teaching kustomize how to update name ref and var substitution 
+const kustomizeConfigTemplate = `# This configuration is for teaching kustomize how to update name ref and var substitution
 nameReference:
 - kind: Issuer
   group: cert-manager.io
diff --git a/pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/manager/config.go b/pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/manager/config.go
index 367d894862b..0a471835d65 100644
--- a/pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/manager/config.go
+++ b/pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/manager/config.go
@@ -84,7 +84,7 @@ spec:
         control-plane: controller-manager
     spec:
       # TODO(user): Uncomment the following code to configure the nodeAffinity expression
-      # according to the platforms which are supported by your solution. 
+      # according to the platforms which are supported by your solution.
       # It is considered best practice to support multiple architectures. You can
       # build your manager image using the makefile target docker-buildx.
       # affinity:
diff --git a/pkg/plugins/common/kustomize/v2-alpha/scaffolds/internal/templates/config/certmanager/kustomizeconfig.go b/pkg/plugins/common/kustomize/v2-alpha/scaffolds/internal/templates/config/certmanager/kustomizeconfig.go
index 7e62db118cb..981fe79c2e5 100644
--- a/pkg/plugins/common/kustomize/v2-alpha/scaffolds/internal/templates/config/certmanager/kustomizeconfig.go
+++ b/pkg/plugins/common/kustomize/v2-alpha/scaffolds/internal/templates/config/certmanager/kustomizeconfig.go
@@ -44,7 +44,7 @@ func (f *KustomizeConfig) SetTemplateDefaults() error {
 }
 
 //nolint:lll
-const kustomizeConfigTemplate = `# This configuration is for teaching kustomize how to update name ref substitution 
+const kustomizeConfigTemplate = `# This configuration is for teaching kustomize how to update name ref substitution
 nameReference:
 - kind: Issuer
   group: cert-manager.io
diff --git a/pkg/plugins/common/kustomize/v2-alpha/scaffolds/internal/templates/config/manager/config.go b/pkg/plugins/common/kustomize/v2-alpha/scaffolds/internal/templates/config/manager/config.go
index 367d894862b..0a471835d65 100644
--- a/pkg/plugins/common/kustomize/v2-alpha/scaffolds/internal/templates/config/manager/config.go
+++ b/pkg/plugins/common/kustomize/v2-alpha/scaffolds/internal/templates/config/manager/config.go
@@ -84,7 +84,7 @@ spec:
         control-plane: controller-manager
     spec:
       # TODO(user): Uncomment the following code to configure the nodeAffinity expression
-      # according to the platforms which are supported by your solution. 
+      # according to the platforms which are supported by your solution.
       # It is considered best practice to support multiple architectures. You can
       # build your manager image using the makefile target docker-buildx.
       # affinity:
diff --git a/pkg/plugins/golang/deploy-image/v1alpha1/scaffolds/api.go b/pkg/plugins/golang/deploy-image/v1alpha1/scaffolds/api.go
index 882c079ffac..4cf25cf4864 100644
--- a/pkg/plugins/golang/deploy-image/v1alpha1/scaffolds/api.go
+++ b/pkg/plugins/golang/deploy-image/v1alpha1/scaffolds/api.go
@@ -327,5 +327,5 @@ const recorderTemplate = `
 		Recorder: mgr.GetEventRecorderFor("%s-controller"),`
 
 const envVarTemplate = `
-        - name: %s_IMAGE 
+        - name: %s_IMAGE
           value: %s`
diff --git a/pkg/plugins/golang/deploy-image/v1alpha1/scaffolds/internal/templates/config/samples/crd_sample.go b/pkg/plugins/golang/deploy-image/v1alpha1/scaffolds/internal/templates/config/samples/crd_sample.go
index 785248139d9..dbd94dab91c 100644
--- a/pkg/plugins/golang/deploy-image/v1alpha1/scaffolds/internal/templates/config/samples/crd_sample.go
+++ b/pkg/plugins/golang/deploy-image/v1alpha1/scaffolds/internal/templates/config/samples/crd_sample.go
@@ -49,12 +49,11 @@ kind: {{ .Resource.Kind }}
 metadata:
   name: {{ lower .Resource.Kind }}-sample
 spec:
-  # TODO(user): edit the following value to ensure the number 
-  # of Pods/Instances your Operand must have on cluster        
+  # TODO(user): edit the following value to ensure the number
+  # of Pods/Instances your Operand must have on cluster
   size: 1
-
-  {{ if not (isEmptyStr .Port) -}}
+{{ if not (isEmptyStr .Port) -}}
   # TODO(user): edit the following value to ensure the container has the right port to be initialized
-  containerPort: {{ .Port }}	
-  {{- end }}
+  containerPort: {{ .Port }}
+{{- end }}
 `
diff --git a/pkg/plugins/golang/v2/scaffolds/internal/templates/config/certmanager/certificate.go b/pkg/plugins/golang/v2/scaffolds/internal/templates/config/certmanager/certificate.go
index 4d17b8dff60..0fd4bffa433 100644
--- a/pkg/plugins/golang/v2/scaffolds/internal/templates/config/certmanager/certificate.go
+++ b/pkg/plugins/golang/v2/scaffolds/internal/templates/config/certmanager/certificate.go
@@ -42,7 +42,7 @@ func (f *Certificate) SetTemplateDefaults() error {
 
 const certManagerTemplate = `# The following manifests contain a self-signed issuer CR and a certificate CR.
 # More document can be found at https://docs.cert-manager.io
-# WARNING: Targets CertManager 0.11 check https://docs.cert-manager.io/en/latest/tasks/upgrading/index.html for 
+# WARNING: Targets CertManager 0.11 check https://docs.cert-manager.io/en/latest/tasks/upgrading/index.html for
 # breaking changes
 apiVersion: cert-manager.io/v1alpha2
 kind: Issuer
diff --git a/pkg/plugins/golang/v2/scaffolds/internal/templates/config/certmanager/kustomizeconfig.go b/pkg/plugins/golang/v2/scaffolds/internal/templates/config/certmanager/kustomizeconfig.go
index e7dbcf8986d..a67b834e9c4 100644
--- a/pkg/plugins/golang/v2/scaffolds/internal/templates/config/certmanager/kustomizeconfig.go
+++ b/pkg/plugins/golang/v2/scaffolds/internal/templates/config/certmanager/kustomizeconfig.go
@@ -41,7 +41,7 @@ func (f *KustomizeConfig) SetTemplateDefaults() error {
 }
 
 //nolint:lll
-const kustomizeConfigTemplate = `# This configuration is for teaching kustomize how to update name ref and var substitution 
+const kustomizeConfigTemplate = `# This configuration is for teaching kustomize how to update name ref and var substitution
 nameReference:
 - kind: Issuer
   group: cert-manager.io
diff --git a/pkg/plugins/golang/v2/scaffolds/internal/templates/config/kdefault/manager_auth_proxy_patch.go b/pkg/plugins/golang/v2/scaffolds/internal/templates/config/kdefault/manager_auth_proxy_patch.go
index 25ce44b1282..e22d30f4f0f 100644
--- a/pkg/plugins/golang/v2/scaffolds/internal/templates/config/kdefault/manager_auth_proxy_patch.go
+++ b/pkg/plugins/golang/v2/scaffolds/internal/templates/config/kdefault/manager_auth_proxy_patch.go
@@ -42,7 +42,7 @@ func (f *ManagerAuthProxyPatch) SetTemplateDefaults() error {
 	return nil
 }
 
-const kustomizeAuthProxyPatchTemplate = `# This patch inject a sidecar container which is a HTTP proxy for the 
+const kustomizeAuthProxyPatchTemplate = `# This patch inject a sidecar container which is a HTTP proxy for the
 # controller manager, it performs RBAC authorization against the Kubernetes API using SubjectAccessReviews.
 apiVersion: apps/v1
 kind: Deployment
diff --git a/testdata/project-v2/config/certmanager/certificate.yaml b/testdata/project-v2/config/certmanager/certificate.yaml
index 58db114fa05..3d46cff8847 100644
--- a/testdata/project-v2/config/certmanager/certificate.yaml
+++ b/testdata/project-v2/config/certmanager/certificate.yaml
@@ -1,6 +1,6 @@
 # The following manifests contain a self-signed issuer CR and a certificate CR.
 # More document can be found at https://docs.cert-manager.io
-# WARNING: Targets CertManager 0.11 check https://docs.cert-manager.io/en/latest/tasks/upgrading/index.html for 
+# WARNING: Targets CertManager 0.11 check https://docs.cert-manager.io/en/latest/tasks/upgrading/index.html for
 # breaking changes
 apiVersion: cert-manager.io/v1alpha2
 kind: Issuer
diff --git a/testdata/project-v2/config/certmanager/kustomizeconfig.yaml b/testdata/project-v2/config/certmanager/kustomizeconfig.yaml
index 90d7c313ca1..e631f777366 100644
--- a/testdata/project-v2/config/certmanager/kustomizeconfig.yaml
+++ b/testdata/project-v2/config/certmanager/kustomizeconfig.yaml
@@ -1,4 +1,4 @@
-# This configuration is for teaching kustomize how to update name ref and var substitution 
+# This configuration is for teaching kustomize how to update name ref and var substitution
 nameReference:
 - kind: Issuer
   group: cert-manager.io
diff --git a/testdata/project-v2/config/default/manager_auth_proxy_patch.yaml b/testdata/project-v2/config/default/manager_auth_proxy_patch.yaml
index 17bd7f46f7d..9fd57e777a0 100644
--- a/testdata/project-v2/config/default/manager_auth_proxy_patch.yaml
+++ b/testdata/project-v2/config/default/manager_auth_proxy_patch.yaml
@@ -1,4 +1,4 @@
-# This patch inject a sidecar container which is a HTTP proxy for the 
+# This patch inject a sidecar container which is a HTTP proxy for the
 # controller manager, it performs RBAC authorization against the Kubernetes API using SubjectAccessReviews.
 apiVersion: apps/v1
 kind: Deployment
diff --git a/testdata/project-v3-config/config/certmanager/kustomizeconfig.yaml b/testdata/project-v3-config/config/certmanager/kustomizeconfig.yaml
index 90d7c313ca1..e631f777366 100644
--- a/testdata/project-v3-config/config/certmanager/kustomizeconfig.yaml
+++ b/testdata/project-v3-config/config/certmanager/kustomizeconfig.yaml
@@ -1,4 +1,4 @@
-# This configuration is for teaching kustomize how to update name ref and var substitution 
+# This configuration is for teaching kustomize how to update name ref and var substitution
 nameReference:
 - kind: Issuer
   group: cert-manager.io
diff --git a/testdata/project-v3-config/config/manager/manager.yaml b/testdata/project-v3-config/config/manager/manager.yaml
index 8531209ae4c..91d432ce90b 100644
--- a/testdata/project-v3-config/config/manager/manager.yaml
+++ b/testdata/project-v3-config/config/manager/manager.yaml
@@ -37,7 +37,7 @@ spec:
         control-plane: controller-manager
     spec:
       # TODO(user): Uncomment the following code to configure the nodeAffinity expression
-      # according to the platforms which are supported by your solution. 
+      # according to the platforms which are supported by your solution.
       # It is considered best practice to support multiple architectures. You can
       # build your manager image using the makefile target docker-buildx.
       # affinity:
diff --git a/testdata/project-v3-multigroup/config/certmanager/kustomizeconfig.yaml b/testdata/project-v3-multigroup/config/certmanager/kustomizeconfig.yaml
index 90d7c313ca1..e631f777366 100644
--- a/testdata/project-v3-multigroup/config/certmanager/kustomizeconfig.yaml
+++ b/testdata/project-v3-multigroup/config/certmanager/kustomizeconfig.yaml
@@ -1,4 +1,4 @@
-# This configuration is for teaching kustomize how to update name ref and var substitution 
+# This configuration is for teaching kustomize how to update name ref and var substitution
 nameReference:
 - kind: Issuer
   group: cert-manager.io
diff --git a/testdata/project-v3-multigroup/config/manager/manager.yaml b/testdata/project-v3-multigroup/config/manager/manager.yaml
index 7bb3f65a0b3..3a7afa81f8b 100644
--- a/testdata/project-v3-multigroup/config/manager/manager.yaml
+++ b/testdata/project-v3-multigroup/config/manager/manager.yaml
@@ -37,7 +37,7 @@ spec:
         control-plane: controller-manager
     spec:
       # TODO(user): Uncomment the following code to configure the nodeAffinity expression
-      # according to the platforms which are supported by your solution. 
+      # according to the platforms which are supported by your solution.
       # It is considered best practice to support multiple architectures. You can
       # build your manager image using the makefile target docker-buildx.
       # affinity:
diff --git a/testdata/project-v3-with-deploy-image/config/certmanager/kustomizeconfig.yaml b/testdata/project-v3-with-deploy-image/config/certmanager/kustomizeconfig.yaml
index 90d7c313ca1..e631f777366 100644
--- a/testdata/project-v3-with-deploy-image/config/certmanager/kustomizeconfig.yaml
+++ b/testdata/project-v3-with-deploy-image/config/certmanager/kustomizeconfig.yaml
@@ -1,4 +1,4 @@
-# This configuration is for teaching kustomize how to update name ref and var substitution 
+# This configuration is for teaching kustomize how to update name ref and var substitution
 nameReference:
 - kind: Issuer
   group: cert-manager.io
diff --git a/testdata/project-v3-with-deploy-image/config/manager/manager.yaml b/testdata/project-v3-with-deploy-image/config/manager/manager.yaml
index 485fb40a81a..ccea46f6b4d 100644
--- a/testdata/project-v3-with-deploy-image/config/manager/manager.yaml
+++ b/testdata/project-v3-with-deploy-image/config/manager/manager.yaml
@@ -37,7 +37,7 @@ spec:
         control-plane: controller-manager
     spec:
       # TODO(user): Uncomment the following code to configure the nodeAffinity expression
-      # according to the platforms which are supported by your solution. 
+      # according to the platforms which are supported by your solution.
       # It is considered best practice to support multiple architectures. You can
       # build your manager image using the makefile target docker-buildx.
       # affinity:
@@ -73,9 +73,9 @@ spec:
         image: controller:latest
         name: manager
         env:
-        - name: BUSYBOX_IMAGE 
+        - name: BUSYBOX_IMAGE
           value: busybox:1.28
-        - name: MEMCACHED_IMAGE 
+        - name: MEMCACHED_IMAGE
           value: memcached:1.4.36-alpine
         securityContext:
           allowPrivilegeEscalation: false
diff --git a/testdata/project-v3-with-deploy-image/config/samples/example.com_v1alpha1_busybox.yaml b/testdata/project-v3-with-deploy-image/config/samples/example.com_v1alpha1_busybox.yaml
index 9f38475085b..e5ba7642dd1 100644
--- a/testdata/project-v3-with-deploy-image/config/samples/example.com_v1alpha1_busybox.yaml
+++ b/testdata/project-v3-with-deploy-image/config/samples/example.com_v1alpha1_busybox.yaml
@@ -3,8 +3,7 @@ kind: Busybox
 metadata:
   name: busybox-sample
 spec:
-  # TODO(user): edit the following value to ensure the number 
-  # of Pods/Instances your Operand must have on cluster        
+  # TODO(user): edit the following value to ensure the number
+  # of Pods/Instances your Operand must have on cluster
   size: 1
 
-  
diff --git a/testdata/project-v3-with-deploy-image/config/samples/example.com_v1alpha1_memcached.yaml b/testdata/project-v3-with-deploy-image/config/samples/example.com_v1alpha1_memcached.yaml
index 95e5d683651..153d1db36c8 100644
--- a/testdata/project-v3-with-deploy-image/config/samples/example.com_v1alpha1_memcached.yaml
+++ b/testdata/project-v3-with-deploy-image/config/samples/example.com_v1alpha1_memcached.yaml
@@ -3,9 +3,8 @@ kind: Memcached
 metadata:
   name: memcached-sample
 spec:
-  # TODO(user): edit the following value to ensure the number 
-  # of Pods/Instances your Operand must have on cluster        
+  # TODO(user): edit the following value to ensure the number
+  # of Pods/Instances your Operand must have on cluster
   size: 1
-
-  # TODO(user): edit the following value to ensure the container has the right port to be initialized
+# TODO(user): edit the following value to ensure the container has the right port to be initialized
   containerPort: 11211
diff --git a/testdata/project-v3/config/certmanager/kustomizeconfig.yaml b/testdata/project-v3/config/certmanager/kustomizeconfig.yaml
index 90d7c313ca1..e631f777366 100644
--- a/testdata/project-v3/config/certmanager/kustomizeconfig.yaml
+++ b/testdata/project-v3/config/certmanager/kustomizeconfig.yaml
@@ -1,4 +1,4 @@
-# This configuration is for teaching kustomize how to update name ref and var substitution 
+# This configuration is for teaching kustomize how to update name ref and var substitution
 nameReference:
 - kind: Issuer
   group: cert-manager.io
diff --git a/testdata/project-v3/config/manager/manager.yaml b/testdata/project-v3/config/manager/manager.yaml
index 1760f9b6b5a..575431e4f20 100644
--- a/testdata/project-v3/config/manager/manager.yaml
+++ b/testdata/project-v3/config/manager/manager.yaml
@@ -37,7 +37,7 @@ spec:
         control-plane: controller-manager
     spec:
       # TODO(user): Uncomment the following code to configure the nodeAffinity expression
-      # according to the platforms which are supported by your solution. 
+      # according to the platforms which are supported by your solution.
       # It is considered best practice to support multiple architectures. You can
       # build your manager image using the makefile target docker-buildx.
       # affinity:
diff --git a/testdata/project-v4-config/config/certmanager/kustomizeconfig.yaml b/testdata/project-v4-config/config/certmanager/kustomizeconfig.yaml
index d1d835a0b94..cf6f89e8892 100644
--- a/testdata/project-v4-config/config/certmanager/kustomizeconfig.yaml
+++ b/testdata/project-v4-config/config/certmanager/kustomizeconfig.yaml
@@ -1,4 +1,4 @@
-# This configuration is for teaching kustomize how to update name ref substitution 
+# This configuration is for teaching kustomize how to update name ref substitution
 nameReference:
 - kind: Issuer
   group: cert-manager.io
diff --git a/testdata/project-v4-config/config/manager/manager.yaml b/testdata/project-v4-config/config/manager/manager.yaml
index 97ce064aaa0..562550f9e67 100644
--- a/testdata/project-v4-config/config/manager/manager.yaml
+++ b/testdata/project-v4-config/config/manager/manager.yaml
@@ -37,7 +37,7 @@ spec:
         control-plane: controller-manager
     spec:
       # TODO(user): Uncomment the following code to configure the nodeAffinity expression
-      # according to the platforms which are supported by your solution. 
+      # according to the platforms which are supported by your solution.
       # It is considered best practice to support multiple architectures. You can
       # build your manager image using the makefile target docker-buildx.
       # affinity:
diff --git a/testdata/project-v4-declarative-v1/config/manager/manager.yaml b/testdata/project-v4-declarative-v1/config/manager/manager.yaml
index 7657d49db10..3c451f10116 100644
--- a/testdata/project-v4-declarative-v1/config/manager/manager.yaml
+++ b/testdata/project-v4-declarative-v1/config/manager/manager.yaml
@@ -37,7 +37,7 @@ spec:
         control-plane: controller-manager
     spec:
       # TODO(user): Uncomment the following code to configure the nodeAffinity expression
-      # according to the platforms which are supported by your solution. 
+      # according to the platforms which are supported by your solution.
       # It is considered best practice to support multiple architectures. You can
       # build your manager image using the makefile target docker-buildx.
       # affinity:
diff --git a/testdata/project-v4-multigroup/config/certmanager/kustomizeconfig.yaml b/testdata/project-v4-multigroup/config/certmanager/kustomizeconfig.yaml
index d1d835a0b94..cf6f89e8892 100644
--- a/testdata/project-v4-multigroup/config/certmanager/kustomizeconfig.yaml
+++ b/testdata/project-v4-multigroup/config/certmanager/kustomizeconfig.yaml
@@ -1,4 +1,4 @@
-# This configuration is for teaching kustomize how to update name ref substitution 
+# This configuration is for teaching kustomize how to update name ref substitution
 nameReference:
 - kind: Issuer
   group: cert-manager.io
diff --git a/testdata/project-v4-multigroup/config/manager/manager.yaml b/testdata/project-v4-multigroup/config/manager/manager.yaml
index 21f52348405..b9d340945db 100644
--- a/testdata/project-v4-multigroup/config/manager/manager.yaml
+++ b/testdata/project-v4-multigroup/config/manager/manager.yaml
@@ -37,7 +37,7 @@ spec:
         control-plane: controller-manager
     spec:
       # TODO(user): Uncomment the following code to configure the nodeAffinity expression
-      # according to the platforms which are supported by your solution. 
+      # according to the platforms which are supported by your solution.
       # It is considered best practice to support multiple architectures. You can
       # build your manager image using the makefile target docker-buildx.
       # affinity:
diff --git a/testdata/project-v4-with-deploy-image/config/certmanager/kustomizeconfig.yaml b/testdata/project-v4-with-deploy-image/config/certmanager/kustomizeconfig.yaml
index d1d835a0b94..cf6f89e8892 100644
--- a/testdata/project-v4-with-deploy-image/config/certmanager/kustomizeconfig.yaml
+++ b/testdata/project-v4-with-deploy-image/config/certmanager/kustomizeconfig.yaml
@@ -1,4 +1,4 @@
-# This configuration is for teaching kustomize how to update name ref substitution 
+# This configuration is for teaching kustomize how to update name ref substitution
 nameReference:
 - kind: Issuer
   group: cert-manager.io
diff --git a/testdata/project-v4-with-deploy-image/config/manager/manager.yaml b/testdata/project-v4-with-deploy-image/config/manager/manager.yaml
index d6cce184e01..7394f7024e1 100644
--- a/testdata/project-v4-with-deploy-image/config/manager/manager.yaml
+++ b/testdata/project-v4-with-deploy-image/config/manager/manager.yaml
@@ -37,7 +37,7 @@ spec:
         control-plane: controller-manager
     spec:
       # TODO(user): Uncomment the following code to configure the nodeAffinity expression
-      # according to the platforms which are supported by your solution. 
+      # according to the platforms which are supported by your solution.
       # It is considered best practice to support multiple architectures. You can
       # build your manager image using the makefile target docker-buildx.
       # affinity:
@@ -73,9 +73,9 @@ spec:
         image: controller:latest
         name: manager
         env:
-        - name: BUSYBOX_IMAGE 
+        - name: BUSYBOX_IMAGE
           value: busybox:1.28
-        - name: MEMCACHED_IMAGE 
+        - name: MEMCACHED_IMAGE
           value: memcached:1.4.36-alpine
         securityContext:
           allowPrivilegeEscalation: false
diff --git a/testdata/project-v4-with-deploy-image/config/samples/example.com_v1alpha1_busybox.yaml b/testdata/project-v4-with-deploy-image/config/samples/example.com_v1alpha1_busybox.yaml
index 9f38475085b..e5ba7642dd1 100644
--- a/testdata/project-v4-with-deploy-image/config/samples/example.com_v1alpha1_busybox.yaml
+++ b/testdata/project-v4-with-deploy-image/config/samples/example.com_v1alpha1_busybox.yaml
@@ -3,8 +3,7 @@ kind: Busybox
 metadata:
   name: busybox-sample
 spec:
-  # TODO(user): edit the following value to ensure the number 
-  # of Pods/Instances your Operand must have on cluster        
+  # TODO(user): edit the following value to ensure the number
+  # of Pods/Instances your Operand must have on cluster
   size: 1
 
-  
diff --git a/testdata/project-v4-with-deploy-image/config/samples/example.com_v1alpha1_memcached.yaml b/testdata/project-v4-with-deploy-image/config/samples/example.com_v1alpha1_memcached.yaml
index 95e5d683651..153d1db36c8 100644
--- a/testdata/project-v4-with-deploy-image/config/samples/example.com_v1alpha1_memcached.yaml
+++ b/testdata/project-v4-with-deploy-image/config/samples/example.com_v1alpha1_memcached.yaml
@@ -3,9 +3,8 @@ kind: Memcached
 metadata:
   name: memcached-sample
 spec:
-  # TODO(user): edit the following value to ensure the number 
-  # of Pods/Instances your Operand must have on cluster        
+  # TODO(user): edit the following value to ensure the number
+  # of Pods/Instances your Operand must have on cluster
   size: 1
-
-  # TODO(user): edit the following value to ensure the container has the right port to be initialized
+# TODO(user): edit the following value to ensure the container has the right port to be initialized
   containerPort: 11211
diff --git a/testdata/project-v4-with-metrics/config/manager/manager.yaml b/testdata/project-v4-with-metrics/config/manager/manager.yaml
index 9af7387e0ba..ded55606300 100644
--- a/testdata/project-v4-with-metrics/config/manager/manager.yaml
+++ b/testdata/project-v4-with-metrics/config/manager/manager.yaml
@@ -37,7 +37,7 @@ spec:
         control-plane: controller-manager
     spec:
       # TODO(user): Uncomment the following code to configure the nodeAffinity expression
-      # according to the platforms which are supported by your solution. 
+      # according to the platforms which are supported by your solution.
       # It is considered best practice to support multiple architectures. You can
       # build your manager image using the makefile target docker-buildx.
       # affinity:
diff --git a/testdata/project-v4/config/certmanager/kustomizeconfig.yaml b/testdata/project-v4/config/certmanager/kustomizeconfig.yaml
index d1d835a0b94..cf6f89e8892 100644
--- a/testdata/project-v4/config/certmanager/kustomizeconfig.yaml
+++ b/testdata/project-v4/config/certmanager/kustomizeconfig.yaml
@@ -1,4 +1,4 @@
-# This configuration is for teaching kustomize how to update name ref substitution 
+# This configuration is for teaching kustomize how to update name ref substitution
 nameReference:
 - kind: Issuer
   group: cert-manager.io
diff --git a/testdata/project-v4/config/manager/manager.yaml b/testdata/project-v4/config/manager/manager.yaml
index 445961a32fb..2ca24dcbbfc 100644
--- a/testdata/project-v4/config/manager/manager.yaml
+++ b/testdata/project-v4/config/manager/manager.yaml
@@ -37,7 +37,7 @@ spec:
         control-plane: controller-manager
     spec:
       # TODO(user): Uncomment the following code to configure the nodeAffinity expression
-      # according to the platforms which are supported by your solution. 
+      # according to the platforms which are supported by your solution.
       # It is considered best practice to support multiple architectures. You can
       # build your manager image using the makefile target docker-buildx.
       # affinity: