diff --git a/ceilometer/templates/bin/_ceilometer-central.sh.tpl b/ceilometer/templates/bin/_ceilometer-central.sh.tpl
index 3b7076876f..04863175de 100644
--- a/ceilometer/templates/bin/_ceilometer-central.sh.tpl
+++ b/ceilometer/templates/bin/_ceilometer-central.sh.tpl
@@ -18,4 +18,5 @@ set -ex
 
 exec ceilometer-polling \
   --polling-namespaces central \
-  --config-file /etc/ceilometer/ceilometer.conf
+  --config-file /etc/ceilometer/ceilometer.conf \
+  --config-dir /etc/ceilometer/ceilometer.conf.d
diff --git a/ceilometer/templates/bin/_ceilometer-compute.sh.tpl b/ceilometer/templates/bin/_ceilometer-compute.sh.tpl
index b189fca225..2f15d0a56f 100644
--- a/ceilometer/templates/bin/_ceilometer-compute.sh.tpl
+++ b/ceilometer/templates/bin/_ceilometer-compute.sh.tpl
@@ -18,4 +18,5 @@ set -ex
 
 exec ceilometer-polling \
   --polling-namespaces compute \
-  --config-file /etc/ceilometer/ceilometer.conf
+  --config-file /etc/ceilometer/ceilometer.conf \
+  --config-dir /etc/ceilometer/ceilometer.conf.d
diff --git a/ceilometer/templates/bin/_ceilometer-ipmi.sh.tpl b/ceilometer/templates/bin/_ceilometer-ipmi.sh.tpl
index 9b6a82a420..0d70157a05 100644
--- a/ceilometer/templates/bin/_ceilometer-ipmi.sh.tpl
+++ b/ceilometer/templates/bin/_ceilometer-ipmi.sh.tpl
@@ -18,4 +18,5 @@ set -ex
 
 exec ceilometer-polling \
   --polling-namespaces ipmi \
-  --config-file /etc/ceilometer/ceilometer.conf
+  --config-file /etc/ceilometer/ceilometer.conf \
+  --config-dir /etc/ceilometer/ceilometer.conf.d
diff --git a/ceilometer/templates/bin/_ceilometer-notification.sh.tpl b/ceilometer/templates/bin/_ceilometer-notification.sh.tpl
index 781e288108..9acc75d4fc 100644
--- a/ceilometer/templates/bin/_ceilometer-notification.sh.tpl
+++ b/ceilometer/templates/bin/_ceilometer-notification.sh.tpl
@@ -17,4 +17,5 @@ limitations under the License.
 set -ex
 
 exec ceilometer-agent-notification \
-  --config-file /etc/ceilometer/ceilometer.conf
+  --config-file /etc/ceilometer/ceilometer.conf \
+  --config-dir /etc/ceilometer/ceilometer.conf.d
diff --git a/ceilometer/templates/daemonset-compute.yaml b/ceilometer/templates/daemonset-compute.yaml
index 07536d443d..1d20e85958 100644
--- a/ceilometer/templates/daemonset-compute.yaml
+++ b/ceilometer/templates/daemonset-compute.yaml
@@ -20,6 +20,8 @@ limitations under the License.
 
 {{- $serviceAccountName := "ceilometer-compute" }}
 {{ tuple $envAll "compute" $serviceAccountName | include "helm-toolkit.snippets.kubernetes_pod_rbac_serviceaccount" }}
+
+{{- $etcSources := .Values.pod.etcSources.ceilometer_compute }}
 ---
 apiVersion: apps/v1
 kind: DaemonSet
@@ -72,6 +74,9 @@ spec:
               mountPath: /etc/ceilometer/ceilometer.conf
               subPath: ceilometer.conf
               readOnly: true
+            - name: ceilometer-etc-snippets
+              mountPath: /etc/ceilometer/ceilometer.conf.d/
+              readOnly: true
             - name: ceilometer-etc
               mountPath: /etc/ceilometer/api_paste.ini
               subPath: api_paste.ini
@@ -125,6 +130,14 @@ spec:
           secret:
             secretName: ceilometer-etc
             defaultMode: 0444
+        - name: ceilometer-etc-snippets
+{{- if $etcSources }}
+          projected:
+            sources:
+{{ toYaml $etcSources | indent 14 }}
+{{- else }}
+          emptyDir: {}
+{{ end }}
         - name: ceilometer-bin
           configMap:
             name: ceilometer-bin
diff --git a/ceilometer/templates/daemonset-ipmi.yaml b/ceilometer/templates/daemonset-ipmi.yaml
index 619a2168f4..790ab09573 100644
--- a/ceilometer/templates/daemonset-ipmi.yaml
+++ b/ceilometer/templates/daemonset-ipmi.yaml
@@ -20,6 +20,8 @@ limitations under the License.
 
 {{- $serviceAccountName := "ceilometer-ipmi" }}
 {{ tuple $envAll "ipmi" $serviceAccountName | include "helm-toolkit.snippets.kubernetes_pod_rbac_serviceaccount" }}
+
+{{- $etcSources := .Values.pod.etcSources.ceilometer_ipmi }}
 ---
 apiVersion: apps/v1
 kind: DaemonSet
@@ -74,6 +76,9 @@ spec:
               mountPath: /etc/ceilometer/ceilometer.conf
               subPath: ceilometer.conf
               readOnly: true
+            - name: ceilometer-etc-snippets
+              mountPath: /etc/ceilometer/ceilometer.conf.d/
+              readOnly: true
             - name: ceilometer-etc
               mountPath: /etc/ceilometer/api_paste.ini
               subPath: api_paste.ini
@@ -119,6 +124,14 @@ spec:
           secret:
             secretName: ceilometer-etc
             defaultMode: 0444
+        - name: ceilometer-etc-snippets
+{{- if $etcSources }}
+          projected:
+            sources:
+{{ toYaml $etcSources | indent 14 }}
+{{- else }}
+          emptyDir: {}
+{{ end }}
         - name: ceilometer-bin
           configMap:
             name: ceilometer-bin
diff --git a/ceilometer/templates/deployment-central.yaml b/ceilometer/templates/deployment-central.yaml
index 15fae9591b..a3130105b7 100644
--- a/ceilometer/templates/deployment-central.yaml
+++ b/ceilometer/templates/deployment-central.yaml
@@ -20,6 +20,8 @@ limitations under the License.
 
 {{- $serviceAccountName := "ceilometer-central" }}
 {{ tuple $envAll "central" $serviceAccountName | include "helm-toolkit.snippets.kubernetes_pod_rbac_serviceaccount" }}
+
+{{- $etcSources := .Values.pod.etcSources.ceilometer_central }}
 ---
 apiVersion: apps/v1
 kind: Deployment
@@ -70,6 +72,9 @@ spec:
               mountPath: /etc/ceilometer/ceilometer.conf
               subPath: ceilometer.conf
               readOnly: true
+            - name: ceilometer-etc-snippets
+              mountPath: /etc/ceilometer/ceilometer.conf.d/
+              readOnly: true
             - name: ceilometer-etc
               mountPath: /etc/ceilometer/api_paste.ini
               subPath: api_paste.ini
@@ -112,6 +117,14 @@ spec:
           secret:
             secretName: ceilometer-etc
             defaultMode: 0444
+        - name: ceilometer-etc-snippets
+{{- if $etcSources }}
+          projected:
+            sources:
+{{ toYaml $etcSources | indent 14 }}
+{{- else }}
+          emptyDir: {}
+{{ end }}
         - name: ceilometer-bin
           configMap:
             name: ceilometer-bin
diff --git a/ceilometer/templates/deployment-notification.yaml b/ceilometer/templates/deployment-notification.yaml
index 33b2c382c7..534657aa27 100644
--- a/ceilometer/templates/deployment-notification.yaml
+++ b/ceilometer/templates/deployment-notification.yaml
@@ -20,6 +20,8 @@ limitations under the License.
 
 {{- $serviceAccountName := "ceilometer-notification" }}
 {{ tuple $envAll "notification" $serviceAccountName | include "helm-toolkit.snippets.kubernetes_pod_rbac_serviceaccount" }}
+
+{{- $etcSources := .Values.pod.etcSources.ceilometer_notification }}
 ---
 apiVersion: apps/v1
 kind: Deployment
@@ -70,6 +72,9 @@ spec:
               mountPath: /etc/ceilometer/ceilometer.conf
               subPath: ceilometer.conf
               readOnly: true
+            - name: ceilometer-etc-snippets
+              mountPath: /etc/ceilometer/ceilometer.conf.d/
+              readOnly: true
             - name: ceilometer-etc
               mountPath: /etc/ceilometer/api_paste.ini
               subPath: api_paste.ini
@@ -116,6 +121,14 @@ spec:
           secret:
             secretName: ceilometer-etc
             defaultMode: 0444
+        - name: ceilometer-etc-snippets
+{{- if $etcSources }}
+          projected:
+            sources:
+{{ toYaml $etcSources | indent 14 }}
+{{- else }}
+          emptyDir: {}
+{{ end }}
         - name: ceilometer-bin
           configMap:
             name: ceilometer-bin
diff --git a/ceilometer/values.yaml b/ceilometer/values.yaml
index 78ff02ed9d..f7eb3d8c64 100644
--- a/ceilometer/values.yaml
+++ b/ceilometer/values.yaml
@@ -1533,6 +1533,14 @@ pod:
       ceilometer_db_sync:
         volumeMounts:
         volumes:
+  # -- This allows users to add Kubernetes Projected Volumes to be mounted at /etc/ceilometer/ceilometer.conf.d/
+  ## This is a list of projected volume source objects for each deployment/statefulset/daemonset/cronjob
+  ## https://kubernetes.io/docs/concepts/storage/projected-volumes/
+  etcSources:
+    ceilometer_compute: []
+    ceilometer_central: []
+    ceilometer_ipmi: []
+    ceilometer_notification: []
   replicas:
     central: 1
     notification: 1
diff --git a/releasenotes/notes/ceilometer-b86532145d088208.yaml b/releasenotes/notes/ceilometer-b86532145d088208.yaml
new file mode 100644
index 0000000000..15d912246e
--- /dev/null
+++ b/releasenotes/notes/ceilometer-b86532145d088208.yaml
@@ -0,0 +1,7 @@
+---
+ceilometer:
+  - |
+    Allow users to add additional sources to the Projected Volume that is mounted
+    at /etc/ceilometer/ceilometer.conf.d/ so they may more easily override configs or provide
+    additional configs for the various services in the chart.
+...