# list all floating IPs
openstack floating ip list
openstack floating ip show 1.2.3.4
openstack floating ip list --project ${PROJECT_ID} --long
 
# Allocate floating IP
openstack floating ip create public 
 
# Allocate specific floating IP for a project (as cloud admin)
openstack floating ip create public --floating-ip-address 10.11.12.13 --project foo-project
FLOATING_IP=$(openstack floating ip create public -c floating_ip_address -f value --floating-ip-address 10.11.12.13)
 
# Associate floating IP to instance
openstack server add floating ip ${INSTANCE_NAME_OR_ID} ${FLOATING_IP}
 
# Disassociate floating IP
openstack server remove floating ip ${INSTANCE_NAME_OR_ID} ${FLOATING_IP}
 
# Release floating IP
openstack floating ip delete ${FLOATING_IP}
 
# show used floating IPs
NETWORK_ID=$(openstack subnet list --network public -c Network -f value)
openstack ip availability show -c total_ips -c used_ips ${NETWORK_ID}
 
# Add floating IP to port
openstack floating ip set --port ${PORT_ID} ${FLOATING_IP}

sudo apt install -y s3cmd

s3cmd --configure
${HOME}/.s3cfg

sudo apt install -y s3fs

echo ${BUCKET}:${ACCESS_KEY}:${SECRET_KEY} >> ~/.passwd-s3fs
chmod 600 ~/.passwd-s3fs

s3fs bucket1 /tmp/mnt -o url=https://s3.example.com

-o passwd_file=~/.passwd-s3fs
-o url=https://s3.example.com,allow_other,umask=0000
-o use_cache=/tmp/cache

mybucket1.mydomain.org /mnt/mybucket1 fuse.s3fs _netdev,allow_other,passwd_file=/home/ftpuser/.passwd-aws-s3fs,default_acl=public-read,uid=1001,gid=65534 0 0

wget https://downloadmirror.intel.com/30373/eng/Intel%C2%AE_SSD_FUT_3.0.11.zip
 
intelmas show -output json
intelmas load -f -intelssd 0
intelmas show -output json -intelssd -sensor
 
for NVME_ID in $(intelmas show -output json -intelssd | jq '.[] | select(.ProductFamily | contains("Intel")) .Index'); do
    intelmas show -intelssd ${NVME_ID}
    intelmas load -force -intelssd ${NVME_ID}
done

# determine the maximum size of a shared memory segment
cat /proc/sys/kernel/shmmax
 
# set default shared memory limit for shmmax (16 GB)
echo 17179869184 > /proc/sys/kernel/shmmax
 
# add the following line to /etc/sysctl.conf to make a change permanent
echo "kernel.shmmax=4294967296" >> /etc/sysctl.d/90-shmmax.conf
 
# load parameter
/sbin/sysctl -p /etc/sysctl.d/90-shmmax.conf

openstack floating ip list
+--------------------------------------+---------------------+------------------+--------------------------------------+--------------------------------------+----------------------------------+
| ID                                   | Floating IP Address | Fixed IP Address | Port                                 | Floating Network                     | Project                          |
+--------------------------------------+---------------------+------------------+--------------------------------------+--------------------------------------+----------------------------------+
| dc049c28-6562-4c37-834b-d3a612d4b580 | 1.2.3.4        | None             | None                                 | 39583230-154f-4b56-a56e-2fd83c9986ce | 1eede1bdc28344f3acf6b48b232e406f |
+--------------------------------------+---------------------+------------------+--------------------------------------+--------------------------------------+----------------------------------+

LB_ID=foo-lb01-prod
 
AMPHORA_ID=$(openstack loadbalancer amphora list --loadbalancer ${LB_ID} --role MASTER -c id -f value)
AMPHORA_COMPUTE_ID=$(openstack loadbalancer amphora show ${AMPHORA_ID} -c compute_id -f value)
LB_NETWORK_IP=$(openstack loadbalancer amphora show ${AMPHORA_ID} -c lb_network_ip -f value)
SECURITY_GROUP_ID=$(openstack port list --server ${AMPHORA_COMPUTE_ID} --fixed-ip "ip-address=${LB_NETWORK_IP}" -c security_group_ids -f value)
 
# DEBUG: show ingress tcp rules
openstack security group rule list --ingress --protocol tcp ${SECURITY_GROUP_ID}
openstack security group rule create --protocol tcp --dst-port 22:22 --remote-ip 172.16.0.0/12  ${SECURITY_GROUP_ID}
openstack loadbalancer amphora list --loadbalancer ${LB_ID} -c  lb_network_ip -c role -f value
openstack loadbalancer amphora list --loadbalancer ${LB_ID} -c  lb_network_ip --role MASTER -f value
 
# login to amphora VM from OpenStack control node
ssh local@ctl1-dev.dev.i.example.com
ssh -i ~/.ssh/id_rsa_octavia ubuntu@${AMPHORA_VM_IP}