Ansible Host Setup for mighty

  • Install ansible-core:
sudo dnf install -y ansible-core
  • requirements.yaml setup:

cat « “EOF” | tee $HOME/requirements.yaml

collections:

  • name: community.crypto

  • name: community.general

  • name: community.mysql

  • name: ansible.posix EOF

  • Manual Commands are below if needed:

  • For OpenSSH support, install this collection:

ansible-galaxy collection install community.crypto
  • Install the Ansible Community Collection:
ansible-galaxy collection install community.general
  • Install the mysql community package for the mariadb database operations:
ansible-galaxy collection install community.mysql
  • Install the posix collection for handling ssh keys and use of rsync:
ansible-galaxy collection install ansible.posix
  • Install the `kubernetes@ collection:
ansible-galaxy collection install kubernetes.core

  • Edit /etc/ansible/hosts

  • Add the following:

cat << "EOF" | sudo tee /etc/ansible/hosts
[kubernetes_control_planes]
shin-ray ansible_ssh_host=192.168.1.101 

[kubernetes_worker_nodes]
green-hills ansible_ssh_host=192.168.1.100 

[rocky-linux8-slurm]
rocky-linux8-slurm-controller-node ansible_ssh_host=192.168.1.120
rocky-linux8-slurm-compute-node ansible_ssh_host=192.168.1.121

[rocky_linux10desktops]
shadow ansible_ssh_host=192.168.1.102 
amy ansible_ssh_host=192.168.1.105 

[rocky_linux10vms]
rocky-linux10-vm1 ansible_ssh_host=192.168.1.125

[rocky_linux9vms]
rocky-linux9-vm1 ansible_ssh_host=192.168.1.126

[rocky_linux8vms]
rocky-linux8-vm1 ansible_ssh_host=192.168.1.127

[control]
shin-ray ansible_ssh_host=192.168.1.101

[workers]
green-hills ansible_ssh_host=192.168.1.100
EOF
  • Generate an ssh key pair:
ssh-keygen -t rsa -b 4096

  • Use ssh-copy-id to access each server from the ansible host.

  • Create the group_vars directory:

sudo mkdir /etc/ansible/group_vars
  • Create the rocky_linux_10desktops configuration file:

cat << "EOF" | sudo tee /etc/ansible/group_vars/rocky_linux_10desktops
---
ansible_ssh_user: root
EOF
  • Make the kubernetes_control_planes configuration file:
cat << "EOF" | sudo tee /etc/ansible/group_vars/kubernetes_control_planes
---
ansible_ssh_user: root
EOF
  • Make the kubernetes_worker_nodes configuration file:
cat << "EOF" | sudo tee /etc/ansible/group_vars/kubernetes_worker_nodes
---
ansible_ssh_user: root
EOF
  • Create the rocky-linux8-slurm configuration file:
cat << "EOF" | sudo tee /etc/ansible/group_vars/rocky-linux8-slurm
---
ansible_ssh_user: root
EOF
  • Create the rocky_linux10vms configuration file:
cat << "EOF" | sudo tee /etc/ansible/group_vars/rocky_linux10vms
---
ansible_ssh_user: root
EOF
  • Create the rocky_linux9vms configuration file:
cat << "EOF" | sudo tee /etc/ansible/group_vars/rocky_linux9vms
---
ansible_ssh_user: root
EOF
  • Create the rocky_linux8vms configuration file:
cat << "EOF" | sudo tee /etc/ansible/group_vars/rocky_linux8vms
---
ansible_ssh_user: root
EOF
  • Generate the group_vars/all file:
cat << "EOF" | sudo tee /etc/ansible/group_vars/all
---
rocky_linux8_slurm_controller_node_ip: 192.168.1.120
rocky_linux8_slurm_compute_node_ip: 192.168.1.121
EOF
  • Test that the machines can be connected to:
ansible -m ping all
ansible -m ping <group_name>
ansible -m ping <host>
ansible -m ping <host1>:<host2>
ansible -m shell -a 'free -m' <host>

Updated: