fix: replace files dropped in merge forward

Author: aramprice

stemcell_builder/lib/prelude_agent.bash

@@ -0,0 +1,4 @@
+
+function get_partitioner_type_mapping {
+  echo '"PartitionerType": "parted",'
+}

stemcell_builder/stages/bosh_aws_agent_settings/apply.sh

@@ -2,5 +2,37 @@
 
 base_dir=$(readlink -nf $(dirname $0)/../..)
 source $base_dir/lib/prelude_apply.bash
+source $base_dir/lib/prelude_agent.bash
 
-cp $assets_dir/agent.json $chroot/var/vcap/bosh/agent.json
+cat > $chroot/var/vcap/bosh/agent.json <<JSON
+{
+  "Platform": {
+    "Linux": {
+      $(get_partitioner_type_mapping)
+      "DevicePathResolutionType": "virtio",
+      "CreatePartitionIfNoEphemeralDisk": true,
+      "ServiceManager": "systemd",
+      "DiskIDTransformPattern": "^vol-(.+)$",
+      "DiskIDTransformReplacement": "nvme-Amazon_Elastic_Block_Store_vol${1}",
+      "UseMonitIptablesFirewall": true,
+      "InstanceStorageDevicePattern": "/dev/nvme*n1",
+      "InstanceStorageManagedVolumePattern": "/dev/disk/by-id/nvme-Amazon_Elastic_Block_Store_*"
+    }
+  },
+  "Infrastructure": {
+    "Settings": {
+      "Sources": [
+        {
+          "Type": "HTTP",
+          "URI": "http://169.254.169.254",
+          "UserDataPath": "/latest/user-data",
+          "InstanceIDPath": "/latest/meta-data/instance-id",
+          "SSHKeysPath": "/latest/meta-data/public-keys/0/openssh-key",
+          "TokenPath": "/latest/api/token"
+        }
+      ],
+      "UseRegistry": true
+    }
+  }
+}
+JSON