feat: add device-mapper extension

Add a new extension for device-mapper kernel drivers

Signed-off-by: ndbrew <[email protected]>

Makefile

@@ -42,6 +42,7 @@ TARGETS = \
  amd-ucode \
  bnx2-bnx2x \
  btrfs \
+ device-mapper \
  drbd \
  gasket-driver \
  gvisor \

storage/device-mapper/README.md

@@ -0,0 +1,17 @@
+# device-mapper
+
+This extension provides kernel modules needed for non-stock device-mapper functionality.
+
+## Installation
+
+Add the extension to your machine config and enable the modules.
+
+```yaml
+machine:
+ install:
+ extensions:
+ - image: ghcr.io/siderolabs/device-mapper:<VERSION>
+ kernel:
+ modules:
+ - name: dm-thin-pool
+```

storage/device-mapper/manifest.yaml

@@ -0,0 +1,10 @@
+version: v1alpha1
+metadata:
+ name: device-mapper
+ version: "$VERSION"
+ author: Nathan Brewer
+ description: |
+ This system extension provides extra device-mapper kernel module drivers.
+ compatibility:
+ talos:
+ version: ">= v1.5.0"

storage/device-mapper/pkg.yaml

@@ -0,0 +1,22 @@
+name: device-mapper
+variant: scratch
+shell: /toolchain/bin/bash
+dependencies:
+ - stage: base
+# The pkgs version for a particular release of Talos as defined in
+# https://github.com/siderolabs/talos/blob/<talos version>/pkg/machinery/gendata/data/pkgs
+ - image: "{{ .PKGS_PREFIX }}/device-mapper-pkg:{{ .BUILD_ARG_PKGS }}"
+steps:
+ - prepare:
+ - |
+ sed -i 's#$VERSION#{{ .VERSION }}#' /pkg/manifest.yaml
+ - install:
+ - |
+ mkdir -p /rootfs/lib/modules
+
+ cp -R /lib/modules/* /rootfs/lib/modules
+finalize:
+ - from: /rootfs
+ to: /rootfs
+ - from: /pkg/manifest.yaml
+ to: /

storage/device-mapper/vars.yaml

@@ -0,0 +1,2 @@
+# the first part is the driver version and the second the talos version for which the module is built against
+VERSION: "{{ .BUILD_ARG_TAG }}"