Forum Discussion
Ichnafi
Cirrostratus
CirrostratusModify vCMP-Guest with ansible not possible?
Hello fellow F5ers,
I try to build an ansible playbook that performs the following:
- Get Names of trunk from vCMP-Host -> got it by using module bigip_device_info
- Create a new VLAN and add it to the trunk from 1. -> got it by using moule bigip_vlan
- Add the newly created VLAN to a vCMP-Guest -> nope...
- use module bigip_vcmp_guest? Nope, only for creating new guests
- create vlan also on the guest using anisble? Nope, will not make VLAN usable in guest
So, is there no other way of modifying the available VLANs fpr a vCMP-Guest, than using the TMSH command to modify the guest and run it with ansible's bigip_command module? What about idempotency?
modify vcmp guest <guest-name> vlans add { <vlan-name> }
Hello Matt_Mabis ,
thank you for your answer.
I can confirm, that one can add VLANs to a vcmp-guest like this, but:You have to list all the existing vlans next to the new one as well. You can't just add a new one. The module replaces all VLANs of the guest with the ones listed in the "vlans" section of the module.
I find this rather awkward. To add a VLAN to a guest, without knowing or careing what VLANs were configured previosly you had to:- Use module bigip_device_info to query information about all vCMP-guest on a vCMP-Host
- Filter the output by the name of the vCMP-Guest you like to update and get the list of currently configured vlans
- append the new vlan to the list
- apply the extended list to the guest
vars: guest_to_modify: "Guest1" vlan_tobe_added: "/Common/fancy-new-vlan" tasks: - name: Get vCMP-Guest Info bigip_device_info: gather_subset: - vcmp-guests provider: "{{ bigip_provider }}" register: device_info delegate_to: localhost - name: Filter for specific guest and build a list with new vlan set_fact: list_current_vlans: "{{ device_info.vcmp_guests|selectattr('full_path', 'match', guest_to_modify) | map(attribute='vlans') }}" list_with_added_vlan: "{{ list_current_vlans[0] + [vlan_tobe_added] }}" - name: Add VLAN to vCMP-Guest bigip_vcmp_guest: name: "{{ guest }}" vlans: "{{ list_with_added_vlan }}" provider: "{{ bigip_provider }}" delegate_to: localhostAnyway. I tested it and it worked for me. the abillity to just add a new vlan would be better i guess, but I'll take it.
Thank you very much!
- Matt_Mabis
Employee
Hey there Ichnafi!
I Tested code out for myself and got it working with bigip_vcmp_guest, here is the code i used you can see the first and second tasks creates 2 VCMP Guest Instances and the 3rd task of code modifies the existing created VCMP Guest, no ping loss no packet drops from my testing.
--- - hosts: localhost connection: local gather_facts: false vars_files: - /git/vars/lab/vault.yml tasks: - name: Create a vCMP guest with specific VLANs bigip_vcmp_guest: name: foo mgmt_network: bridged mgmt_address: 192.168.1.60/24 mgmt_route: 192.168.1.1 vlans: - VLAN5 initial_image: "BIGIP-15.1.0.4-0.0.6.iso" provider: password: "{{ f5_password }}" server: 192.168.1.50 user: "{{ f5_username }}" validate_certs: false delegate_to: localhost - name: Create a vCMP guest with specific VLANs bigip_vcmp_guest: name: Testbip mgmt_network: bridged mgmt_address: 192.168.1.61/24 mgmt_route: 192.168.1.1 initial_image: "BIGIP-15.1.0.4-0.0.6.iso" vlans: - VLAN2101 state: configured provider: password: "{{ f5_password }}" server: 192.168.1.50 user: "{{ f5_username }}" validate_certs: false delegate_to: localhost - name: Modify a vCMP guest with specific VLANs bigip_vcmp_guest: name: foo vlans: - VLAN5 - VLAN2101 provider: password: "{{ f5_password }}" server: 192.168.1.50 user: "{{ f5_username }}" validate_certs: false delegate_to: localhostOutput from Code Run
Ansible Playbook Version - 2.14.1
Ansible Galaxy Collection - 1.21.0
IchnafiHello Matt_Mabis ,
thank you for your answer.
I can confirm, that one can add VLANs to a vcmp-guest like this, but:You have to list all the existing vlans next to the new one as well. You can't just add a new one. The module replaces all VLANs of the guest with the ones listed in the "vlans" section of the module.
I find this rather awkward. To add a VLAN to a guest, without knowing or careing what VLANs were configured previosly you had to:- Use module bigip_device_info to query information about all vCMP-guest on a vCMP-Host
- Filter the output by the name of the vCMP-Guest you like to update and get the list of currently configured vlans
- append the new vlan to the list
- apply the extended list to the guest
vars: guest_to_modify: "Guest1" vlan_tobe_added: "/Common/fancy-new-vlan" tasks: - name: Get vCMP-Guest Info bigip_device_info: gather_subset: - vcmp-guests provider: "{{ bigip_provider }}" register: device_info delegate_to: localhost - name: Filter for specific guest and build a list with new vlan set_fact: list_current_vlans: "{{ device_info.vcmp_guests|selectattr('full_path', 'match', guest_to_modify) | map(attribute='vlans') }}" list_with_added_vlan: "{{ list_current_vlans[0] + [vlan_tobe_added] }}" - name: Add VLAN to vCMP-Guest bigip_vcmp_guest: name: "{{ guest }}" vlans: "{{ list_with_added_vlan }}" provider: "{{ bigip_provider }}" delegate_to: localhostAnyway. I tested it and it worked for me. the abillity to just add a new vlan would be better i guess, but I'll take it.
Thank you very much!
- Matt_Mabis
Totally understand where you are coming from, I think they would have had to create a different module for that scenario. The removal of a vlan would have created complications against bigip_vcmp_guests module as a "absent" status trying to remove a vlan would probably tell the system to remove the entire guest not just a vlan..
Glad you were able to figure out a solution.
Hi Ichnafi - I see that nobody has answered your question yet, so I'm featuring it in today's Community Highlights article as an unanswered question, and sharing this with a colleague for some help.
