CEPH

ceph status
ceph health detail
ceph df detail
ceph osd lspools
osd pool ls detail

Monitoring
https://github.com/ceph/ceph-nagios-plugins/releases

Build nagios-plugins-ceph
sudo apt-get install -y devscripts fakeroot build-essential dh-python
git clone https://github.com/ceph/ceph-nagios-plugins.git
cd ceph-nagios-plugins#
make deb
sudo dpkg -i nagios-plugins-ceph_*_all.deb

# create wrapper for kolla-ansible installation
cat < /usr/bin/ceph
#!/bin/bash
docker exec -it ceph_mon ceph $@
EOF
chmod +x /usr/bin/ceph

Flash LibreELEC to S905X

Latest version:
https://kszaq.libreelec.tv/s905/

wget https://kszaq.libreelec.tv/s905/8.2/8.2.3.1/LibreELEC-S905.arm-8.2-8.2.3.1.img.gz -P /tmp/
gzip -d /tmp/LibreELEC-S905.arm-8.2-8.2.3.1.img.gz -C /tmp
dd if=/tmp//tmp/LibreELEC.USB-SD.Creator.Linux-64bit.bin of=/dev/mmcblk0

1. remove power connector from the box
2. insert sd card to to the box
3. press button inside aux connector and connect power to the box
4. enable ssh service on the box
5. ssh root@your_box_ip (pass: libreelec)
6. installtointernal

Links

Redfish

BMC_IP=10.0.1.123
BMC_USER=ADMIN
BMC_PASS=ADMIN

# Install redfishtool (CLI)
git clone https://github.com/DMTF/Redfishtool.git
cd Redfishtool/
python3 redfishtool.py -r ${BMC_IP} -u ${BMC_USER} -p ${BMC_PASS} Systems -F

for BMC_IP in 10.0.1.11 10.0.1.12 10.0.1.13; do
python3 redfishtool.py -r ${BMC_IP} -u ${BMC_USER} -p ${BMC_PASS} Systems -F | jq .SerialNumber
python3 redfishtool.py -r $BMC_IP -u $BMC_USER -p $BMC_PASS Systems -F | jq .IndicatorLED
done

python3 redfishtool.py -r $BMC_IP -u $BMC_USER -p $BMC_PASS Chassis list

LXD: tftp container (recover ASUS RT-N66U under Linux) 

lxc launch ubuntu:20.04 tftp
 
lxc config device add tftp eth0 nic nictype=physical parent=enp0s25
 
lxc file push Downloads/RT-N66U_3.0.0.4_382_52272-g73d3ea2.trx tftp/tmp/
lxc shell tftp
 
apt update 
apt install -y tftp
 
ip l set dev eth0 up
ip a add 192.168.1.111/24 dev eth0
 
 
# ping 192.168.1.1
 
# tftp 
tftp> connect
(to) 192.168.1.1
 
put RT-N66U_3.0.0.4_382_52272-g73d3ea2.trx

Links
https://chrishardie.com/2013/02/asus-router-firmware-windows-mac-linux/

kexec (reboot without hardware initialization)

echo "kexec-tools kexec-tools/load_kexec select true" | sudo debconf-set-selections

sudo apt install -y kexec-tools
#sudo kexec -l /boot/vmlinuz-4.15.0-32-generic --initrd=/boot/initrd.img-4.15.0-32-generic --reuse-cmdline
#sudo kexec -e
#systemctl kexec

sudo kexec -l /vmlinuz --initrd=/initrd.img --reuse-cmdline && sudo systemctl kexec

- name: Enable kexec
lineinfile:
path: /etc/default/kexec
regexp: '^LOAD_KEXEC='
line: 'LOAD_KEXEC=true'
when: ('dev' in group_names)

Links
https://liranv.github.io/post/booting-memtest86-uefi/

ironic / bifrost

# load env
. /opt/stack/bifrost/env-vars

# list nodes
ironic node-list

# remove / shutdown existing node
ironic node-set-provision-state foo.example.com deleted

# load node configuration
export BIFROST_INVENTORY_SOURCE=/opt/openstack-prepare-baremetal/bifrost/json/foo.example.com.json

# add new node
ansible-playbook -i inventory/bifrost_inventory.py enroll-dynamic.yaml
ironic node-update foo.example.com add properties/capabilities='boot_mode:uefi'

# deploy
ansible-playbook -v -i inventory/bifrost_inventory.py deploy-dynamic.yaml

# show node details

Install OpenStack with Kolla-ansible under Ubuntu

Docu
https://docs.openstack.org/releasenotes/kolla-ansible/
https://docs.openstack.org/project-deploy-guide/kolla-ansible/latest/quickstart.html
https://docs.openstack.org/kolla-ansible/latest/reference/index.html

Repository
https://github.com/openstack/kolla-ansible

Install all-in-one
apt-get install python-dev libffi-dev gcc libssl-dev python-selinux python-setuptools ansible pip
pip install kolla-ansible
cp -r /usr/local/share/kolla-ansible/etc_examples/kolla /etc/
cp /usr/local/share/kolla-ansible/ansible/inventory/* .

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