Outdated examples in 'network' role

[balazsbme]

Description

The following two examples seem to be outdated, both with Ansible and OpenNebula:

• one-deploy/roles/network/frontend/README.md

  Line 24 in f70dc3a

  Example Playbook

• one-deploy/roles/network/node/README.md

  Line 23 in f70dc3a

  Example Playbook

I found two problems with them:

• The example is not a valid playbook: hosts and roles cannot be added at the same time
• The given VNET templates are not picked up by the playbook because they have a wrong structure

Fix proposal

Rather give an inventory example inventory-with-network.yaml:

[...]

frontend:
  hosts:
    fe: { ansible_host: 10.0.0.1 }
  vars:
    vn:
      bridge:
        managed: true
        template:
          VN_MAD: bridge
          AR:
            TYPE: IP4
            IP: 10.11.12.200
            SIZE: 48
          NETWORK_ADDRESS: 10.11.12.0
          NETWORK_MASK: 255.255.255.0
          GATEWAY: 10.11.12.1
          DNS: 1.1.1.1
      vxlan:
        managed: true
        template:
          VN_MAD: vxlan
          PHYDEV: ens6
          BRIDGE: br1
          VLAN_ID: 86
          FILTER_IP_SPOOFING: 'NO'
          FILTER_MAC_SPOOFING: 'YES'
          GUEST_MTU: 1450
          AR:
            TYPE: IP4
            IP: 192.168.150.200
            SIZE: 48
          NETWORK_ADDRESS: 192.168.150.0
          NETWORK_MASK: 255.255.255.0

node:
  hosts:
    host01: { ansible_host: 10.0.0.2 }
  vars:
    vn:
      vxlan:
        # Define a VNET of type vxlan and move IP4/6 settings from ens6 to br1.
        managed: true
        template:
          VN_MAD: vxlan
          PHYDEV: ens6
          BRIDGE: br1
          VLAN_ID: 86
          FILTER_IP_SPOOFING: 'NO'
          FILTER_MAC_SPOOFING: 'YES'
          GUEST_MTU: 1450
          AR:
            TYPE: IP4
            IP: 192.168.150.200
            SIZE: 48
          NETWORK_ADDRESS: 192.168.150.0
          NETWORK_MASK: 255.255.255.0

And its invokation with tags, as it is shown in the one-deploy Wikik:

cd one-deploy
hatch shell
cd my-dir
ansible-playbook -i inventory-with-network.yaml -v opennebula.deploy.main -t network

[sk4zuzu]

Hi @balazsbme 🤗

The example is not a valid playbook: hosts and roles cannot be added at the same time

This looks to me like a false statement, basic construction like below is actually a valid playbook:

---
- hosts: 127.0.0.1
  connection: local
  vars:
    asd: 123
  roles:
    - opennebula.deploy.helper.facts
  post_tasks:
    - debug: var=asd

The given VNET templates are not picked up by the playbook because they have a wrong structure

Yes that is true, the structure is incorrect because this is an example from intial implementation of network roles, later it was simplified, but nobody ever corrected or reported it (before this issue).

The example should look more like:

        vn:
          # Define a VNET of type bridge using predefined bridge br0.
          service:
            managed: true
            template:
              VN_MAD: bridge
              BRIDGE: br0
              AR:
                TYPE: IP4
                IP: 10.11.12.200
                SIZE: 48
              NETWORK_ADDRESS: 10.11.12.0
              NETWORK_MASK: 255.255.255.0
              GATEWAY: 10.11.12.1
              DNS: 1.1.1.1
          # Define a VNET of type vxlan and move IP4/6 settings from bond0 to br1.
          vm:
            managed: true
            template:
              VN_MAD: vxlan
              PHYDEV: bond0
              BRIDGE: br1
              VLAN_ID: 86
              FILTER_IP_SPOOFING: 'NO'
              FILTER_MAC_SPOOFING: 'YES'
              GUEST_MTU: 1450
              AR:
                TYPE: IP4
                IP: 192.168.150.200
                SIZE: 48
              NETWORK_ADDRESS: 192.168.150.0
              NETWORK_MASK: 255.255.255.0

Rather give an inventory example inventory-with-network.yaml:

Yes role readme files are not there to replace full inventory examples.