Migrate LXC container to LXD (with ZFS storage)

CONTAINER_NAME=www

lxc-stop -n ${CONTAINER_NAME}
lxc init ubuntu:18.04 ${CONTAINER_NAME} -c security.privileged=true -c boot.autostart=true
#lxc stop ${CONTAINER_NAME}
#lxc config set ${CONTAINER_NAME} boot.autostart true
zfs mount tank/lxd/containers/${CONTAINER_NAME}
mv /var/lib/lxd/containers/${CONTAINER_NAME}/rootfs{,.org}
rsync -av --numeric-ids /var/lib/lxc/${CONTAINER_NAME}/rootfs /var/lib/lxd/containers/${CONTAINER_NAME}/
mv /var/lib/lxd/containers/${CONTAINER_NAME}/rootfs/dev{,.org}

OpenStack: Octavia LoadBalancer (LBaaS)

Create Amphora image
sudo apt install -y python-pip git qemu qemu-utils debootstrap kpartx
sudo pip install diskimage-builder
git clone https://review.openstack.org/p/openstack/octavia
cd octavia
sudo ./diskimage-create/diskimage-create.sh -d bionic -t raw
chmod a+r ./amphora-x64-haproxy.raw

Upload Amphora image
#openstack image create --container-format bare --disk-format qcow2 --private --file amphora-x64-haproxy.qcow2 --tag amphora amphora

iLO - IPMI on HP servers

Download Latest firmware
http://pingtool.org/latest-hp-ilo-firmwares/
https://support.hpe.com/hpesc/public/home/driverHome?sp4ts.oid=1009143853
# download "RECOMMENDED * Online ROM Flash Component for Linux - HPE Integrated Lights-Out"

Extract firmware
chmod +x /tmp/CP0*.scexe
/tmp/CP0*.scexe --unpack=/tmp

# flash iLo firmware (local)
yes | ./CP036949.scexe

# ipmitool -I lanplus -H www1-ipmi -U Administrator -P pass1234 hpm upgrade ilo4_261.bin

Flash iLo with SSH (not tested)

Nginx (proxy) Docker container

Create required directories
mkdir -p /etc/docker/nginx/{conf.d,html}

Configure nginx as webserver
cat < /etc/docker/nginx/conf.d/default.conf
server {
listen 80;
server_name _;

root /usr/share/nginx/html;
index index.html index.htm;
}
EOF

Configure nginx as proxy
cat < /etc/docker/nginx/conf.d/proxy.conf
server {
listen 80;
server_name foo.example.com;

location / {
proxy_pass http://localhost:8080/;
}
}
EOF

Create container

netdata

Docker
docker run -d --name=netdata \
-p 8080:19999 \
-v /proc:/host/proc:ro \
-v /sys:/host/sys:ro \
-v /var/run/docker.sock:/var/run/docker.sock:ro \
--cap-add SYS_PTRACE \
--security-opt apparmor=unconfined \
netdata/netdata

# URL
http://SERVER_IP:8080

Links
https://github.com/netdata/netdata

OpenStack: Cleanup project objects

# Delete VM
openstack server list --project=test-project --os-cloud=dev
openstack server delete test-project-vm

# Delete floating IP
openstack floating ip list --project=test-project --os-cloud=dev
openstack floating ip delete 1.2.3.4

# Delete router
openstack router list --project=test-project --os-cloud=dev
openstack subnet list --project=test-project --os-cloud=dev
openstack router remove subnet test-project-router test-project-subnet
openstack router delete test-project-router

# Delete subnet
openstack subnet list --project=test-project --os-cloud=dev

OpenStack: Cloud management with Ansible

Ansible OpenStack modules
https://docs.ansible.com/ansible/latest/search.html?q=os_

Ansible OpenStack module repository
https://github.com/ansible/ansible/tree/devel/lib/ansible/modules/cloud/openstack

# Fix; To utilize this module, the installed version ofthe shade library MUST be >=1.8.0
wget http://mirrors.kernel.org/ubuntu/pool/universe/p/python-shade/python-shade_1.30.0-2_all.deb -O /tmp/python-shade_1.30.0-2_all.deb
sudo dpkg -i /tmp/python-shade_1.30.0-2_all.deb

OpenStack multi cloud / user configurattion

Configure connections
# ~/.config/openstack/clouds.yaml
clouds:
admin-dev:
auth:
auth_url: http://keystone-admin.dev.example.com:35357/v3
project_name: admin
username: admin
user_domain_name: Default
project_domain_name: Default
interface: internal
foo-stage:
auth:
auth_url: http://api.stage.example.com:35357
project_name: fooproject
username: foo
user_domain_name: foodom
project_domain_name: foodom

Configure passwords
# ~/.config/openstack/secure.yaml
clouds: