Move Elasticsearch data to dedicated LV 

# create lvm
pvcreate /dev/disk/by-id/ata-INTEL_SSDSC2KB076T8_*
vgcreate data /dev/disk/by-id/ata-INTEL_SSDSC2KB076T8_*
lvcreate --name elasticsearch --size 2T data
mkfs.ext4 /dev/data/elasticsearch
 
# pre-sync data
mount /dev/data/elasticsearch /mnt/
rsync -aHAXx --numeric-ids /var/lib/docker/volumes/elasticsearch/ /mnt/
 
# sync data
docker stop elasticsearch
rsync --delete -aHAXxv --numeric-ids /var/lib/docker/volumes/elasticsearch/ /mnt/
rsync --delete -aHAXxv --numeric-ids /var/lib/docker/volumes/elasticsearch/ /mnt/
umount /mnt
 
# mount new LV

SSH reverse tunel over public host

@Office

cat <<EOF> ~/bin/proxy-ssh-forward.sh
#!/bin/bash
 
PROXY_SERVER=proxy.example.com
 
eval \$(ssh-agent) && ssh-add
 
while true; do
    echo "Connect to proxy ..."
    ssh -a -v -N -R 7422:localhost:22 -o ServerAliveInterval=30 -o ServerAliveCountMax=10 \${PROXY_SERVER}
    sleep 10
done
EOF
 
chmod +x ~/bin/proxy-ssh-forward.sh
nohup ~/bin/proxy-ssh-forward.sh

@Home

Deploy OpenStack host with Ironic and Redfish

Define node variables

NODE=com4-dev
NODE_BMC_HOST=com4-dev.ipmi.dev.i.example.com
NODE_MAC_NIC1=00:11:22:33:44:55

Define env variables

NODE_BMC_USER=ADMIN
NODE_BMC_PASS=ADMIN

Create now node with Redfish (pxe device boot broken)
https://docs.openstack.org/ironic/latest/admin/drivers/redfish.html

openstack baremetal node create \
  --name ${NODE} \
  --driver redfish \
  --driver-info redfish_address="https://${NODE_BMC_HOST}" \
  --driver-info redfish_username=${NODE_BMC_USER} \
  --driver-info redfish_password=${NODE_BMC_PASS} \
  --driver-info redfish_verify_ca=false \
  --driver-info redfish_system_id=/redfish/v1/Systems/1

Create now node with IPMI
https://docs.openstack.org/ironic/latest/admin/drivers/ipmitool.html

openstack baremetal node create \
  --name ${NODE} \
  --driver ipmi \
  --driver-info ipmi_address=${NODE_BMC_HOST} \
  --driver-info ipmi_username=${NODE_BMC_USER} \
  --driver-info ipmi_password=${NODE_BMC_PASS}

iPXE
https://docs.openstack.org/ironic/latest/admin/interfaces/boot.html#pxe-boot

ansible-galaxy

Ansible galaxy

ansible-galaxy install <REPOSITORY>
 
ansible-galaxy role install  --roles-path /tmp https://github.com/avanov/ansible-galaxy-pyenv/archive/refs/tags/1.2.0.tar.gz
mv /tmp/1.2.0 ~/.ansible/roles/avanov.pyenv

https://galaxy.ansible.com/bennojoy/network_interface/ - Network configuration
https://github.com/Oefenweb/ansible-postfix
https://galaxy.ansible.com/geerlingguy/gitlab/

Linux software RAID (mdadm)
https://galaxy.ansible.com/mrlesmithjr/mdadm

ansible-galaxy install mrlesmithjr.mdadm

Ubuntu multipass 

# install  multipass
sudo snap install multipass --edge --classic
 
snap info multipass
multipass version
 
# create VM
multipass launch --name vm1
 
multipass launch --name vm5 --disk 4G --mem 256M core18
 
multipass exec vm3 -- lsb_release -a
 
multipass mount /tmp/mp vm3
 
multipass transfer /etc/fstab vm3:/tmp/y
 
multipass exec vm3 -- sudo apt update && sudo apt dist-upgrade -y

SSH login to VM

sudo ssh ubuntu@<VM_IP> -i /var/snap/multipass/common/data/multipassd/ssh-keys/id_rsa
multipass delete vm2
multipass purge 
 
sudo multipass set local.driver=libvirt

Links
https://multipass.run/
https://multipass.run/docs/launch-command

Check OpenvSwitch 

#!/bin/bash
 
export OS_ENV="@globals.environment@"
 
 
if [ "${OS_ENV}" == "dev" ]; then
    export PYENV_ROOT="$HOME/.pyenv"
    export PATH="$PYENV_ROOT/bin:$PATH"
    eval "$(pyenv init -)"
fi
 
source /etc/kolla/admin-openrc.sh
 
EXIT_CODE=0
 
# search for broken ovs entry in DB
for NODE in $(openstack compute service list -c Host -f value | sort -u); do
    OUTPUT=$(ssh ${NODE} docker exec openvswitch_vswitchd ovsdb-client dump | grep qvo | egrep -v "tag|mac" | cut -d "\"" -f2)
    for PORT in ${OUTPUT}; do
        printf "%-20s %s\n" "${NODE}" "${PORT}"
 
        EXIT_CODE=1
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