diff --git a/.github/workflows/ci_verify.sh b/.github/workflows/ci_verify.sh
index 077b6c8..deca0bd 100755
--- a/.github/workflows/ci_verify.sh
+++ b/.github/workflows/ci_verify.sh
@@ -16,23 +16,23 @@ mkdir -p ${ROOT}/.ci_work
 # use docker if available else use podman
 if ! docker version &>/dev/null; then docker=podman; else docker=docker; fi
 
+# copy the services to a temporary location to avoid dirtying the repo
+cp -r ${ROOT}/services/* ${ROOT}/.ci_work/
+
 for service in ${ROOT}/services/*/  # */ to skip files
 do
-
     ### Lint each service chart and validate if schema given ###
     service_name=$(basename $service)
-    cp -r $service ${ROOT}/.ci_work/$service_name
     schema=$(cat ${service}/values.yaml | sed -rn 's/^# yaml-language-server: \$schema=(.*)/\1/p')
     if [ -n "${schema}" ]; then
         echo "{\"\$ref\": \"$schema\"}" > ${ROOT}/.ci_work/$service_name/values.schema.json
     fi
     $docker run --rm --entrypoint bash \
-        -v ${ROOT}/.ci_work/$service_name:/services/$service_name \
+        -v ${ROOT}/.ci_work:/services \
         alpine/helm:3.14.3 \
         -c "helm dependency update /services/$service_name"
     $docker run --rm --entrypoint bash \
-        -v ${ROOT}/.ci_work/$service_name:/services/$service_name \
-        -v ${ROOT}/services/values.yaml:/services/values.yaml \
+        -v ${ROOT}/.ci_work:/services \
         alpine/helm:3.14.3 \
         -c "helm lint /services/$service_name --values /services/values.yaml"
 
diff --git a/services/bl45p-ea-dcam-01/values.yaml b/services/bl45p-ea-dcam-01/values.yaml
index 0c2fe4c..b291c7f 100644
--- a/services/bl45p-ea-dcam-01/values.yaml
+++ b/services/bl45p-ea-dcam-01/values.yaml
@@ -1,6 +1,4 @@
-# Arguments to the shared ioc instance template dls-aravis
-# This will make an IOC instance for an aravis camera with a standard set
-# of Areadetector plugins.
+# yaml-language-server: $schema=https://github.com/epics-containers/ec-helm-charts/releases/download/4.1.2/ioc-instance.schema.json
 
 dls-aravis:
   P: BL45P-EA-MAP-01
diff --git a/services/bl45p-ea-dcam-02/values.yaml b/services/bl45p-ea-dcam-02/values.yaml
index 274da7f..18d7f40 100644
--- a/services/bl45p-ea-dcam-02/values.yaml
+++ b/services/bl45p-ea-dcam-02/values.yaml
@@ -1,3 +1,5 @@
+# yaml-language-server: $schema=https://github.com/epics-containers/ec-helm-charts/releases/download/4.1.2/ioc-instance.schema.json
+
 # Arguments to the shared ioc instance template dls-aravis
 # This will make an IOC instance for an aravis camera with a standard set
 # of Areadetector plugins.
@@ -8,3 +10,4 @@ dls-aravis:
 
 ioc-instance:
   image: ghcr.io/epics-containers/ioc-adaravis-runtime:2024.11.1
+  location: bl45p # TODO remove me when schema is fixed
diff --git a/services/bl45p-mo-brick-01/values.yaml b/services/bl45p-mo-brick-01/values.yaml
index 37c9060..d4d84ba 100644
--- a/services/bl45p-mo-brick-01/values.yaml
+++ b/services/bl45p-mo-brick-01/values.yaml
@@ -1,5 +1,6 @@
-# yaml-language-server: $schema=https://github.com/marcelldls/ec-helm-charts/releases/download/3.4.4/ioc-instance.schema.json#/$defs/service
+# yaml-language-server: $schema=https://github.com/epics-containers/ec-helm-charts/releases/download/4.1.2/ioc-instance.schema.json/#/$defs/service
 
 # latest container image for the pmac motion controller
 ioc-instance:
   image: ghcr.io/epics-containers/ioc-pmac-runtime:2024.9.1
+  location: bl45p # TODO remove me when schema is fixed
diff --git a/services/bl45p-mo-panda-01/values.yaml b/services/bl45p-mo-panda-01/values.yaml
index b9e21fe..89cd342 100644
--- a/services/bl45p-mo-panda-01/values.yaml
+++ b/services/bl45p-mo-panda-01/values.yaml
@@ -1,4 +1,4 @@
-# yaml-language-server: $schema=https://github.com/marcelldls/ec-helm-charts/releases/download/3.4.4/ioc-instance.schema.json#/$defs/service
+# yaml-language-server: $schema=https://github.com/epics-containers/ec-helm-charts/releases/download/4.1.2/ioc-instance.schema.json/#/$defs/service
 
 # latest container image for GigE cameras from the GitHub Container Registry
 ioc-instance:
@@ -8,3 +8,4 @@ ioc-instance:
   # /epics/ioc/start.sh - thus making the pandaBlocks container image have
   # the same entrypoint as ioc-template based images
   iocConfig: /epics/ioc
+  location: bl45p # TODO remove me when schema is fixed
diff --git a/services/bl45p-mo-panda-02/values.yaml b/services/bl45p-mo-panda-02/values.yaml
index b9e21fe..89cd342 100644
--- a/services/bl45p-mo-panda-02/values.yaml
+++ b/services/bl45p-mo-panda-02/values.yaml
@@ -1,4 +1,4 @@
-# yaml-language-server: $schema=https://github.com/marcelldls/ec-helm-charts/releases/download/3.4.4/ioc-instance.schema.json#/$defs/service
+# yaml-language-server: $schema=https://github.com/epics-containers/ec-helm-charts/releases/download/4.1.2/ioc-instance.schema.json/#/$defs/service
 
 # latest container image for GigE cameras from the GitHub Container Registry
 ioc-instance:
@@ -8,3 +8,4 @@ ioc-instance:
   # /epics/ioc/start.sh - thus making the pandaBlocks container image have
   # the same entrypoint as ioc-template based images
   iocConfig: /epics/ioc
+  location: bl45p # TODO remove me when schema is fixed
diff --git a/services/values.yaml b/services/values.yaml
index 0a91840..488935d 100644
--- a/services/values.yaml
+++ b/services/values.yaml
@@ -1,3 +1,4 @@
+# yaml-language-server: $schema=https://github.com/epics-containers/ec-helm-charts/releases/download/4.1.2/ioc-instance.schema.json/#/$defs/service
 # shared values for all services
 
 global:
@@ -9,6 +10,7 @@ ioc-instance:
   # useHostNetwork - use host network for IOC - required for Channel Access
   # to work outside of the cluster
   hostNetwork: true
+  location: bl45p # TODO remove me when schema is fixed
 
   # affinity and tolerations to get the right nodes on pollux
   securityContext:
@@ -19,7 +21,15 @@ ioc-instance:
     pvc: false
     hostPath: /dls/p45/data
 
-  useAffinity: true
+  affinity:
+    nodeAffinity:
+      requiredDuringSchedulingIgnoredDuringExecution:
+        nodeSelectorTerms:
+          - matchExpressions:
+              - key: beamline
+                operator: In
+                values:
+                  - bl45p
 
   tolerations:
     - key: beamline