Contents:

pssh commands
/etc/ansible/hosts edit for Python
Ansible webserver playbook
Ansible NTP server playbook
LXD networking commands
LXD storage pool commands
udev rule for renaming network interface

pssh commands

parallel-ssh -i -h sshhosts.txt df -ht ext4 parallel-slurp -h sshhosts.txt -L host-files/ /etc/group group

/etc/ansible/hosts edit for Python

sudo nano /etc/ansible/hosts 10.0.3.93 ansible_python_interpreter=/usr/bin/python3 10.0.3.43 ansible_python_interpreter=/usr/bin/python3

Ansible webserver playbook

--- - hosts: all become: true tasks: - name: Install Apache2 apt: name=apache2 state=present update_cache=yes - name: ensure Apache2 started service: name=apache2 state=started enabled=yes

Ansible NTP server playbook

ntp-clients.yml - hosts: all tasks: - name: set timezone shell: timedatectl set-timezone America/Toronto become: true - name: Install NTP apt: name=ntp state=present tags: ntp become: true - name: Install ntpdate apt: name=ntpdate state=present tags: ntpdate become: true - name: Copy ntp.conf file template: src=/home/ubuntu/ntp.conf dest=/etc/ntp.conf notify: - restart ntp tags: ntp become: true - name: Stop NTP service: name=ntp state=stopped enabled=yes tags: ntp become: true - name: Sync initial time shell: ntpdate 10.0.3.140 tags: ntp become: true - name: Restart NTP service: name=ntp state=running enabled=yes tags: ntp become: true - name: Sync hwclock shell: hwclock -w tags: ntp become: true handlers: - name: restart ntp service: name=ntp state=restarted become: true

LXD networking commands

sudo lxc network show lxdbr0 sudo lxc network create testbr0 ipv6.address=none ipv4.address=10.0.4.1/24 ipv4.nat=true sudo lxc network attach testbr0 demo default eth2

LXD storage pool commands

sudo lxc storage volume attach MyPool myvolume demo data /home/me/data sudo lxc launch images:ubuntu/bionic myUbuntu -s mypool sudo lxc storage volume attach MyPool myvolume myUbuntu data /home/ubuntu/mydata

udev rule for renaming network interface

ACTION=="add", SUBSYSTEM=="net",ATTR{address}=="08:00:27:f8:a1:df",NAME="eth3"