diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 397c853..8c120c5 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -35,14 +35,6 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
 
-      # Install the cosign tool except on PR
-      # https://github.com/sigstore/cosign-installer
-      - name: Install cosign
-        if: github.event_name != 'pull_request'
-        uses: sigstore/cosign-installer@6e04d228eb30da1757ee4e1dd75a0ec73a653e06 #v3.1.1
-        with:
-          cosign-release: 'v2.1.1'
-
       # Workaround: https://github.com/docker/build-push-action/issues/461
       - name: Setup Docker buildx
         uses: docker/setup-buildx-action@79abd3f86f79a9d68a23c75a09a9a85889262adf
@@ -78,22 +70,6 @@ jobs:
           cache-from: type=gha
           cache-to: type=gha,mode=max
 
-
-      # Sign the resulting Docker image digest except on PRs.
-      # This will only write to the public Rekor transparency log when the Docker
-      # repository is public to avoid leaking data.  If you would like to publish
-      # transparency data even for private images, pass --force to cosign below.
-      # https://github.com/sigstore/cosign
-      - name: Sign the published Docker image
-        if: ${{ github.event_name != 'pull_request' }}
-        env:
-          # https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-an-intermediate-environment-variable
-          TAGS: ${{ steps.meta.outputs.tags }}
-          DIGEST: ${{ steps.build-and-push.outputs.digest }}
-        # This step uses the identity token to provision an ephemeral certificate
-        # against the sigstore community Fulcio instance.
-        run: echo "${TAGS}" | xargs -I {} cosign sign --yes {}@${DIGEST}
-
   releasechart:
     runs-on: ubuntu-latest
     steps:
diff --git a/Dockerfile b/Dockerfile
index 8d7c135..1dcbdf3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,10 +15,10 @@ COPY . .
 
 RUN CGO_ENABLED=0 go build -o webhook -ldflags '-w -extldflags "-static"' .
 
-FROM alpine:3.19
-
-RUN apk add --no-cache ca-certificates
+FROM scratch
 
 COPY --from=build /workspace/webhook /usr/local/bin/webhook
+COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
+
 
 ENTRYPOINT ["webhook"]
diff --git a/deploy/rcodezero-webhook/templates/deployment.yaml b/deploy/rcodezero-webhook/templates/deployment.yaml
index 057cc42..265d9c7 100644
--- a/deploy/rcodezero-webhook/templates/deployment.yaml
+++ b/deploy/rcodezero-webhook/templates/deployment.yaml
@@ -10,6 +10,9 @@ metadata:
     heritage: {{ .Release.Service }}
 spec:
   replicas: {{ .Values.replicaCount }}
+  {{- if .Values.podSecurityContext.enabled }}
+    securityContext: {{- omit .Values.podSecurityContext "enabled" | toYaml | nindent 8 }}
+  {{- end }}
   selector:
     matchLabels:
       app: {{ include "example-webhook.name" . }}
@@ -24,8 +27,12 @@ spec:
       containers:
         - name: {{ .Chart.Name }}
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          {{- if .Values.containerSecurityContext.enabled }}
+          securityContext: {{- omit .Values.containerSecurityContext "enabled" | toYaml | nindent 12 }}
+          {{- end }}
           imagePullPolicy: {{ .Values.image.pullPolicy }}
           args:
+            - --secure-port={{ .Values.service.port }}
             - --tls-cert-file=/tls/tls.crt
             - --tls-private-key-file=/tls/tls.key
           env:
@@ -33,7 +40,7 @@ spec:
               value: {{ .Values.groupName | quote }}
           ports:
             - name: https
-              containerPort: 443
+              containerPort: {{ .Values.service.port }}
               protocol: TCP
           livenessProbe:
             httpGet:
diff --git a/deploy/rcodezero-webhook/values.yaml b/deploy/rcodezero-webhook/values.yaml
index fb895ad..3ed1a45 100644
--- a/deploy/rcodezero-webhook/values.yaml
+++ b/deploy/rcodezero-webhook/values.yaml
@@ -41,3 +41,48 @@ nodeSelector: {}
 tolerations: []
 
 affinity: {}
+
+## @section Security Contexts
+
+containerSecurityContext:
+  ## @param containerSecurityContext.enabled Whether to enable the container security context
+  ##
+  enabled: true
+  ## @param containerSecurityContext.runAsNonRoot Whether to run the container as a non-root user
+  ##
+  runAsNonRoot: true
+  ## @param containerSecurityContext.privileged Whether the container is privileged
+  ##
+  privileged: false
+  ## @param containerSecurityContext.readOnlyRootFilesystem Whether the root filesystem is read-only
+  ##
+  readOnlyRootFilesystem: false
+  ## @param containerSecurityContext.allowPrivilegeEscalation Whether to allow privilege escalation
+  ##
+  allowPrivilegeEscalation: false
+  ## @extra containerSecurityContext.capabilities Capabilities to add/drop for the container
+  ## @skip containerSecurityContext.capabilities.drop
+  ##
+  capabilities:
+    drop: ["ALL"]
+  ## @extra containerSecurityContext.seccompProfile Seccomp profile for the container
+  ## @skip containerSecurityContext.seccompProfile.type
+  ##
+  seccompProfile:
+    type: "RuntimeDefault"
+
+
+podSecurityContext:
+  ## @param podSecurityContext.enabled Whether to enable the pod security context
+  ##
+  enabled: true
+  ## @param podSecurityContext.fsGroupChangePolicy Policy for changing the fsGroup
+  ##
+  fsGroupChangePolicy: OnRootMismatch
+  ## @param podSecurityContext.sysctls Sysctls for the pod
+  ##
+  sysctls: []
+  ## @param podSecurityContext.supplementalGroups Supplemental groups for the pod
+  ##
+  supplementalGroups: []
+