import old book

roles/disks/tasks/main.yml

@@ -0,0 +1,48 @@
+- name: get list of disks
+  changed_when: false
+  shell: >
+    lsblk
+    --json
+    --paths
+    --filter 'MIN == 0 && TYPE == "disk" && MOUNTPOINT != "[SWAP]"'
+    | jq '.blockdevices'
+  register: disks
+
+- name: backup partition tables
+  become: true
+  shell: |
+    if [ {{ item.type }} != disk ]; then exit 0; fi
+    sfdisk --dump {{ item.name }} >{{ backup_directory }}/disks/{{ item.name | basename }}.sfdisk
+  loop: "{{ disks.stdout }}"
+
+- name: get list of luks devices
+  changed_when: false
+  shell: >
+    lsblk
+    --json
+    --paths
+    | jq '[ .blockdevices[]|.children[]?|select(recurse(.children[]?)|.type == "crypt") ]'
+  register: cryptdisks
+
+- name: backup luks2 headers
+  become: true
+  loop: "{{ cryptdisks.stdout }}"
+  shell: |
+    rm -f {{ backup_directory }}/disks/{{ item.children[0].name | basename }}.luks2header
+    cryptsetup luksHeaderBackup {{ item.name }} \
+      --header-backup-file {{ backup_directory }}/disks/{{ item.children[0].name | basename }}.luks2header
+
+- name: backup lvm volume groups
+  become: true
+  shell: |
+    if [ ! -d /etc/lvm/backup ]; then exit 0; fi
+    for vg in /etc/lvm/backup/*; do
+      cp $vg {{backup_directory}}/disks/${vg##*/}.volumegroup
+    done
+
+# get list of disks
+# run sfdisk on it
+# get list of partitions with luks2
+# # backup their headers
+# get list of partitions with lvm2
+# # copy the metadata