Add an argument to host configure to wipe block devices
This can be necessary when there are existing partition tables or LVM headers e.g. from a previous installation.
This commit is contained in:
Mark Goddard
parent
fce4df3143
commit
12884dd121
12
README.md
12
README.md
|
|
@ -116,6 +116,12 @@ Image Builder (DIB). To configure the seed host OS:
|
|||
|
||||
(kayobe-venv) $ kayobe seed host configure
|
||||
|
||||
If the seed host uses disks that have been in use in a previous installation,
|
||||
it may be necessary to wipe partition and LVM data from those disks. To wipe
|
||||
all disks that are not mounted during host configuration:
|
||||
|
||||
(kayobe-venv) $ kayobe seed host configure --wipe-disks
|
||||
|
||||
It is possible to use prebuilt container images from an image registry such as
|
||||
Dockerhub. In some cases it may be necessary to build images locally either to
|
||||
apply local image customisation or to use a downstream version of Kolla. To
|
||||
|
|
@ -159,6 +165,12 @@ provisioned with an OS image. To configure the overcloud hosts' OS:
|
|||
|
||||
(kayobe-venv) $ kayobe overcloud host configure
|
||||
|
||||
If the controller hosts use disks that have been in use in a previous
|
||||
installation, it may be necessary to wipe partition and LVM data from those
|
||||
disks. To wipe all disks that are not mounted during host configuration:
|
||||
|
||||
(kayobe-venv) $ kayobe overcloud host configure --wipe-disks
|
||||
|
||||
It is possible to use prebuilt container images from an image registry such as
|
||||
Dockerhub. In some cases it may be necessary to build images locally either to
|
||||
apply local image customisation or to use a downstream version of Kolla. To
|
||||
|
|
|
|||
|
|
@ -0,0 +1,60 @@
|
|||
---
|
||||
# Warning! These tasks can result in lost data. Take care when developing and
|
||||
# using them.
|
||||
|
||||
# Initialisation tasks to be applied on first boot of a system to initalise
|
||||
# disks. We search for block devices that are not currently mounted, then wipe
|
||||
# any LVM or file system state from them.
|
||||
|
||||
- name: Ensure LVM2 is installed
|
||||
yum:
|
||||
name: lvm2
|
||||
state: present
|
||||
become: True
|
||||
|
||||
- name: Check for unmounted block devices
|
||||
shell: >
|
||||
lsblk -i -o NAME,MOUNTPOINT | awk \
|
||||
'/^ *[|`]-/ && NF > 1 { mounts[master_dev] = mounts[master_dev] $2 " " }
|
||||
/^sd/ && NF == 1 { master_dev = $1; mounts[master_dev] = "" }
|
||||
END { for (dev in mounts) if (mounts[dev] == "") print dev }'
|
||||
register: unmounted_devices
|
||||
changed_when: False
|
||||
|
||||
- name: Ensure that all unmounted block devices have LVM state removed
|
||||
shell: |
|
||||
set -e
|
||||
if pvs /dev/{{ item }} >/dev/null 2>&1
|
||||
then
|
||||
echo "Found PV on /dev/{{ item }}"
|
||||
vg=$(pvs --noheadings -o vg_name /dev/{{ item }})
|
||||
if [[ -n $vg ]] && [[ $vg != " " ]]
|
||||
then
|
||||
echo "Found VG $vg on PV /dev/{{ item }}"
|
||||
lvs --noheadings -o lv_name $vg | while read lv
|
||||
do
|
||||
if [[ -n $lv ]] && [[ $lv != " " ]]
|
||||
then
|
||||
echo "Found LV $lv on VG $vg. Removing"
|
||||
lvremove -yf ${vg}/${lv}
|
||||
fi
|
||||
done
|
||||
vgremove -f $vg
|
||||
fi
|
||||
pvremove -yff /dev/{{ item }}
|
||||
fi
|
||||
with_items: "{{ unmounted_devices.stdout_lines }}"
|
||||
become: True
|
||||
|
||||
- name: Ensure that all unmounted block devices have filesystems wiped
|
||||
command: "wipefs -f /dev/{{ item }}"
|
||||
with_items: "{{ unmounted_devices.stdout_lines }}"
|
||||
become: True
|
||||
# The command can fail in some cases which are valid, so ignore the
|
||||
# result.
|
||||
failed_when: False
|
||||
|
||||
- name: Ensure that all unmounted block device headers are zeroed
|
||||
command: "dd if=/dev/zero of=/dev/{{ item }} bs=1M count=100"
|
||||
with_items: "{{ unmounted_devices.stdout_lines }}"
|
||||
become: True
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
---
|
||||
# Warning! This play can result in lost data. Take care when developing and
|
||||
# using it.
|
||||
|
||||
# Initialisation task to be applied on first boot of a system to initalise
|
||||
# disks. We search for block devices that are not currently mounted, then wipe
|
||||
# any LVM or file system state from them.
|
||||
|
||||
- name: Ensure that all unmounted block devices are wiped
|
||||
hosts: seed:controllers
|
||||
roles:
|
||||
- role: wipe-disks
|
||||
|
|
@ -160,12 +160,24 @@ class SeedVMProvision(KollaAnsibleMixin, KayobeAnsibleMixin, Command):
|
|||
class SeedHostConfigure(KollaAnsibleMixin, KayobeAnsibleMixin, Command):
|
||||
"""Configure the seed node host OS."""
|
||||
|
||||
def get_parser(self, prog_name):
|
||||
parser = super(SeedHostConfigure, self).get_parser(prog_name)
|
||||
group = parser.add_argument_group("Host Configuration")
|
||||
group.add_argument("--wipe-disks", action='store_true',
|
||||
help="wipe partition and LVM data from all disks "
|
||||
"that are not mounted. Warning: this can "
|
||||
"result in the loss of data")
|
||||
return parser
|
||||
|
||||
def take_action(self, parsed_args):
|
||||
self.app.LOG.debug("Configuring seed host OS")
|
||||
ansible_user = ansible.config_dump(parsed_args, host="seed",
|
||||
var_name="kayobe_ansible_user")
|
||||
playbooks = _build_playbook_list(
|
||||
"ip-allocation", "ssh-known-host", "kayobe-ansible-user",
|
||||
"ip-allocation", "ssh-known-host", "kayobe-ansible-user")
|
||||
if parsed_args.wipe_disks:
|
||||
playbooks += _build_playbook_list("disk-wipe")
|
||||
playbooks += _build_playbook_list(
|
||||
"dev-tools", "disable-selinux", "network", "ntp", "lvm")
|
||||
ansible.run_playbooks(parsed_args, playbooks, limit="seed")
|
||||
kolla_ansible.run_seed(parsed_args, "bootstrap-servers",
|
||||
|
|
@ -245,12 +257,24 @@ class OvercloudProvision(KayobeAnsibleMixin, Command):
|
|||
class OvercloudHostConfigure(KollaAnsibleMixin, KayobeAnsibleMixin, Command):
|
||||
"""Configure the overcloud host OS."""
|
||||
|
||||
def get_parser(self, prog_name):
|
||||
parser = super(OvercloudHostConfigure, self).get_parser(prog_name)
|
||||
group = parser.add_argument_group("Host Configuration")
|
||||
group.add_argument("--wipe-disks", action='store_true',
|
||||
help="wipe partition and LVM data from all disks "
|
||||
"that are not mounted. Warning: this can "
|
||||
"result in the loss of data")
|
||||
return parser
|
||||
|
||||
def take_action(self, parsed_args):
|
||||
self.app.LOG.debug("Configuring overcloud host OS")
|
||||
ansible_user = ansible.config_dump(parsed_args, host="controllers[0]",
|
||||
var_name="kayobe_ansible_user")
|
||||
playbooks = _build_playbook_list(
|
||||
"ip-allocation", "ssh-known-host", "kayobe-ansible-user",
|
||||
"ip-allocation", "ssh-known-host", "kayobe-ansible-user")
|
||||
if parsed_args.wipe_disks:
|
||||
playbooks += _build_playbook_list("disk-wipe")
|
||||
playbooks += _build_playbook_list(
|
||||
"dev-tools", "disable-selinux", "network", "ntp", "lvm")
|
||||
ansible.run_playbooks(parsed_args, playbooks, limit="controllers")
|
||||
kolla_ansible.run_overcloud(parsed_args, "bootstrap-servers",
|
||||
|
|
|
|||
Loading…
Reference in New Issue