I am using the following function to deploy an Openstack subnet using Ansible and variable file:
- name: Create the subnets
os_subnet:
cloud: "{{ item.cloud }}"
state: present
validate_certs: no
gateway_ip: "{{ item.gateway_ip | default(None) }}"
dns_nameservers: "{{ item.dns if item.dns is defined else omit }}"
enable_dhcp: yes
name: "{{ item.subnet }}"
network_name: "{{ item.network }}"
cidr: "{{ item.cidr }}"
allocation_pool_start: "{{ item.allocation_pool_start }}"
allocation_pool_end: "{{ item.allocation_pool_end }}"
host_routes: "{{ item.host_routes | default(omit) }}"
with_items:
- "{{ subnets }}"
tags: subnets
In my environment, I will have some subnets that will have gateway configured, some not. I would like to create a workaround to make it possible configuring gateway ip for some servers and for some of them not.
I have tried yet to configure it like this, but it will assign also for the ones that do not have the gateway_ip configured in the variable file a gateway. I have tried also the no_gateway_ip option, but for this one I didn't find the proper filter to get a gateway_ip when it is defined in the variable file.
Any way to trick this?
Found the way: no_gateway_ip should be involved, not gateway_ip.
- name: Create the subnets
os_subnet:
cloud: "{{ item.cloud }}"
state: present
validate_certs: no
no_gateway_ip: "{{ not (item.gateway_ip is defined) }}"
dns_nameservers: "{{ item.dns if item.dns is defined else omit }}"
enable_dhcp: yes
name: "{{ item.subnet }}"
network_name: "{{ item.network }}"
cidr: "{{ item.cidr }}"
allocation_pool_start: "{{ item.allocation_pool_start }}"
allocation_pool_end: "{{ item.allocation_pool_end }}"
host_routes: "{{ item.host_routes | default(omit) }}"
with_items:
- "{{ subnets }}"
tags: subnets
Related
I am trying to create a windows server machine with the vmware_guest module from a template. I see that it ignore the parameter disk and its option size_gb. When the playbook create the virtual machine, it has the same disk size of the template This only happens when I create a windows server machine, if I try to create a linux server, the module it works correctly.
This is my playbook
- name: Clone VM from template with static IP
vmware_guest:
validate_certs: "{{ validate_certs | default('False') }}"
hostname: "{{ vcenter_hostname }}"
username: "{{ vcenter_username }}"
password: "{{ vcenter_password }}"
datacenter: "{{ vm_datacenter }}"
name: "{{ vm_name }}"
folder: "{{ vm_folder }}"
template: "{{ vm_template }}"
state: poweredon
annotation: "{{ vm_notes | default('Provisioned by ansible') }}"
cluster: "{{ vm_cluster }}"
hardware:
num_cpus: "{{ cpu }}"
memory_mb: "{{ mem_mb }}"
hotadd_cpu: "{{ hot_add_cpu | default('True') }}"
hotremove_cpu: "{{ hot_remove_cpu | default('True') }}"
hotadd_memory: "{{ hot_add_memory | default('True') }}"
disk:
- size_gb: "{{ disk_size | default('16') }}"
type: "{{ vm_disk_type | default('thin') }}"
datastore: "{{ vm_datastore }}"
networks:
- name: "{{ vm_port_group }}"
type: static
ip: "{{ vm_ip }}"
netmask: "{{ netmask }}"
gateway: "{{ network_gateway }}"
wait_for_ip_address: yes
customization:
dns_servers:
- "{{ dns_server1 }}"
register: static_vm
I would try limiting your indentation. See if that helps.
disk:
- size_gb: "{{ disk_size | default('16') }}"
type: "{{ vm_disk_type | default('thin') }}"
datastore: "{{ vm_datastore }}"
I am trying to automate VMware builds using Ansible. I am expecting a workflow engine to output a file that would act as a var_file and have all of the objects that can be used to build the VM using the vmware_guest module. It works great until you get to the networks dictionary portion of the module then it falls apart.
I initially tried setting up a vars_file with all of the variables like this:
---
validate_certs: no
datacenter: this is the DC
cluster: this is the cluster
folder: "this is the folder"
name: some-server
template: template-name
datastore: "datastore-name"
netname: This is the network
ip: 10.6.6.10
netmask: 255.255.255.0
gateway: 10.6.6.1
mac: aa:bb:dd:aa:00:14
domain: domain.com
However, that returned:
argument networks is of type <type 'dict'> and we were unable to convert to list: <type 'dict'> cannot be converted to a list"}
Where the code fails is on this task:
- name: Clone a virtual machine from Windows template and customize
vmware_guest:
hostname: "{{ hostname }}"
username: "{{ username }}"
password: "{{ password }}"
validate_certs: "{{ validate_certs }}"
datacenter: "{{ datacenter }}"
cluster: "{{ cluster }}"
folder: "{{ folder }}"
name: "{{name }}"
template: "{{ template }}"
datastore: "{{ datastore}}"
networks:
name: "{{ netname }}"
ip: "{{ ip }}"
netmask: "{{ netmask }}"
gateway: "{{ gateway }}"
mac: "{{ mac }}"
domain: "{{ domain }}"```
I tried creating a dictionary in the variable file like this:
---
validate_certs: no
datacenter: this is the DC
cluster: this is the cluster
folder: "this is the folder"
name: some-server
template: template-name
datastore: "datastore-name"
bnetworks:
name: This is the network
ip: 10.6.6.10
netmask: 255.255.255.0
gateway: 10.6.6.1
mac: aa:bb:dd:aa:00:14
domain: americas.global-legal.com
And changed the task to include this:
networks:
name: "{{ item.value.name }}"
ip: "{{ item.value.ip }}"
netmask: "{{ item.value.netmask }}"
gateway: "{{ item.value.gateway }}"
mac: "{{ item.value.mac }}"
domain: "{{ item.value.domain }}"
with_dict: bnetworks```
And I get this error:
The task includes an option with an undefined variable. The error was: 'item' is undefined
Any help would be appreciated.
argument networks is of type <type 'dict'> and we were unable to convert to list: cannot be converted to a list"}
There might be more networks in one VM therefor a list is needed. The corect syntax is below
- name: Clone a virtual machine from Windows template and customize
vmware_guest:
hostname: "{{ hostname }}"
username: "{{ username }}"
password: "{{ password }}"
validate_certs: "{{ validate_certs }}"
datacenter: "{{ datacenter }}"
cluster: "{{ cluster }}"
folder: "{{ folder }}"
name: "{{name }}"
template: "{{ template }}"
datastore: "{{ datastore}}"
networks:
- name: "{{ netname }}"
ip: "{{ ip }}"
netmask: "{{ netmask }}"
gateway: "{{ gateway }}"
mac: "{{ mac }}"
domain: "{{ domain }}"```
This is a list
list:
- key: value
This is a dictionary
dictionary:
key: value
This is a list of dictionaries
dictionary:
- key1: value-1-1
key2: value-2-1
- key1: value-2-1
key2: value-2-2
The task includes an option with an undefined variable. The error was: 'item' is undefined
The indentation of with_dict is wrong. The correct syntax is below.
vmware_guest:
...
networks:
- name: "{{ item.value.name }}"
ip: "{{ item.value.ip }}"
netmask: "{{ item.value.netmask }}"
gateway: "{{ item.value.gateway }}"
mac: "{{ item.value.mac }}"
domain: "{{ item.value.domain }}"
with_dict: "{{ bnetworks }}"
I am looking to loop through a list of variables. I have it looping through the of variables using with_items, however the catch is there is a list within that variables list that needs to have a different subset / number of variables that i need to iterate through as well.
I have tried different filters to include with_nested, with_subelements, and with_items. I know that they are moving towards loops as the primary driver moving forward so any solution ideally would leverage the ansible path moving forward. I am looking at having an "inner" loop or an external task that will iterate through the vlans_list and input that data as its to that point.
group Variables
vnic_templates:
- name: vNIC-A
fabric: A
mac_pool: testmac1
mtu: 1500
org_dn: org-root
redundancy_type: none
state: present
template_type: initial-template
vlans_list: ### THE PROBLEM CHILD
- name: vlan2
native: 'no'
state: present
- name: vlan3
native: 'no'
state: present
The actual task - i have issues when i have to input multiple vlans. The vnic template will have a 1 to one relationship however the vlans_list could be 1 vnic_template to many vlans.
ucs_vnic_template:
hostname: "{{ ucs_manager_hostname }}"
username: "{{ ucs_manager_username }}"
password: "{{ ucs_manager_password }}"
name: "{{ item.name }}"
fabric: "{{ item.fabric }}"
mac_pool: "{{ item.mac_pool }}"
mtu: "{{ item.mtu }}"
org_dn: "{{ item.org_dn }}"
redundancy_type: "{{ item.redundancy_type }}"
state: "{{ item.state }}"
template_type: "{{ item.template_type }}"
vlans_list:
- name: "{{ item.1.name }}"
native: "{{ item.1.native }}"
state: "{{ item.1.present }}"
# loop: "{{ vnic_templates | subelements('vlans_list') }}"
with_items:
- "{{ vnic_templates }}"
I am starting down the road of adding an include vlan_list.yml outside of this task but no familiar with out to do that.
Actual results are
The task includes an option with an undefined variable. The error was: 'item' is undefined\n\n
I need the create a single vnic template with multiple vlans defined in that list.
Another engineer i work with was able to solve the question. By the way the variables are laid out we were able to easily just change the code
Change this:
vlans_list:
- name: "{{ item.1.name }}"
native: "{{ item.1.native }}"
state: "{{ item.1.present }}"
To this:
vlans_list: "{{ item.vlans_list }}"
Full Code listed below.
- name: Add vNIC Templates
ucs_vnic_template:
hostname: "{{ ucs_manager_hostname }}"
username: "{{ ucs_manager_username }}"
password: "{{ ucs_manager_password }}"
name: "{{ item.name }}"
fabric: "{{ item.fabric }}"
mac_pool: "{{ item.mac_pool }}"
mtu: "{{ item.mtu }}"
org_dn: "{{ item.org_dn }}"
redundancy_type: "{{ item.redundancy_type }}"
state: "{{ item.state }}"
template_type: "{{ item.template_type }}"
vlans_list: "{{ item.vlans_list }}"
with_items:
- "{{ vnic_templates }}"
I'm wondering if it is possible to perform a loop in the hostvars folder when using Ansible?
Here is what I've tried but haven't had success in making it work - or is it just not possible to do?
---
list_pool: 'list ltm pool {{ items }}'
with_items:
- 'abc123'
- 'def456'
I would use the "list_pool" variable in a playbook afterward:
- name: List pool
bigip_command:
server: "{{ some_server }}"
user: "{{ some_user }}"
password: "{{ some_password }}"
commands:
- "{{ list_pool }}"
validate_certs: no
delegate_to: localhost
Not sure what you mean when you say you want to loop over hostvars folder.
From what I can interpret from your tasks is: "You need to execute big-ip command list ltm <pool-name> for multiple pools in the list list_pool"
If that's what you're after, this should work:
- name: Set list_pool fact
set_fact:
list_pool: "{{ list_pool | default([]) + [item] }}"
with_items:
- 'abc123'
- 'def456'
- name: List pool
bigip_command:
server: "{{ some_server }}"
user: "{{ some_user }}"
password: "{{ some_password }}"
commands:
- "list ltm {{ item }}"
validate_certs: no
delegate_to: localhost
with_items: "{{ list_pool }}"
I got this working with the following solution:
hostvars file would look like this:
---
pre_checks:
checks:
pool:
- name: "pool_123"
- name: "pool_456"
...
And the play would look like this:
--output truncated---
- name: Fetch device host_vars
set_fact:
device_config: "{{ ((lookup('file','{{playbook_dir}}/host_vars/{{inventory_hostname}}.yml')) | from_yaml) }}"
- name: Check pool
bigip_command:
server: "{{ inventory_hostname }}"
user: "{{ remote_username }}"
password: "{{ remote_passwd }}"
commands:
- "list ltm pool {{ item }}"
validate_certs: no
with_items:
- "{{ device_config.pre_checks | json_query('checks.pool[*].name') }}"
delegate_to: localhost
when: "'active' in Active_LTM['stdout'][0]"
register: Pre_Checks
- name: Verify pool
debug: var=item
with_items: "{{ Pre_Checks.results | map(attribute='stdout_lines') | list }}"
I have 3 task in my ansible yml file as below.
---
- name: Instance provisioning
local_action:
module: ec2
region: "{{ vpc_region }}"
key_name: "{{ ec2_keypair }}"
instance_type: "{{ instance_type }}"
image: "{{ ec2_image}}"
zone: "{{ public_az }}"
volumes:
- device_name: "{{ device }}"
volume_type: "{{ instance_volumetype }}"
volume_size: "{{ volume }}"
delete_on_termination: "{{ state }}"
instance_tags:
Name: "{{ instance_name }}_{{ release_name }}_APACHE"
environment: "{{ env_type }}"
vpc_subnet_id: "{{ public_id }}"
assign_public_ip: "{{ public_ip_assign }}"
group_id: "{{ sg_apache }},{{ sg_internal }}"
wait: "{{ wait_type }}"
register: ec2
- name: adding group to inventory file
lineinfile:
dest: "/etc/ansible/hosts"
regexp: "^\\[{{ release_name }}\\]"
line: "[{{ release_name }}]"
state: present
- name: adding apache ip to hosts
lineinfile:
dest: "/etc/ansible/hosts"
line: "{{ item.private_ip }} name=apache dns={{ item.public_dns_name }}
with_items: ec2.instances
Now i want to check the exit status of each task whether it is success or failure.
If any one of the task fails my other task should not execute.
Please advice how to write an ansible playbook
In your first task, you have register the output to ec2.
now use fail module to stop the play if the task fails.
Ex.
register: ec2
fail:
when: "ec2.rc == 1"
here rc is the return code of the command .. we are assuming 1 for fail and 0 for success.
use fail module after every task.
Let me know if it works for you ..
Register a variable in each task and then check it in the next task. See http://docs.ansible.com/ansible/playbooks_tests.html#task-results
This is already the default behavior in Ansible. If a task fails, the Playbook aborts and reports the failure. You don't need to build in any extra functionality around this.
Maybe playbook blocks and it's error handling is to help you?
Kumar
if You want to check each task output if it is success or failure do this,
---
- name: Instance provisioning
local_action:
module: ec2
region: "{{ vpc_region }}"
key_name: "{{ ec2_keypair }}"
instance_type: "{{ instance_type }}"
image: "{{ ec2_image}}"
zone: "{{ public_az }}"
volumes:
- device_name: "{{ device }}"
volume_type: "{{ instance_volumetype }}"
volume_size: "{{ volume }}"
delete_on_termination: "{{ state }}"
instance_tags:
Name: "{{ instance_name }}_{{ release_name }}_APACHE"
environment: "{{ env_type }}"
vpc_subnet_id: "{{ public_id }}"
assign_public_ip: "{{ public_ip_assign }}"
group_id: "{{ sg_apache }},{{ sg_internal }}"
wait: "{{ wait_type }}"
register: ec2
- name: adding group to inventory file
lineinfile:
dest: "/etc/ansible/hosts"
regexp: "^\\[{{ release_name }}\\]"
line: "[{{ release_name }}]"
state: present
when: ec2 | changed
register: fileoutput
- name: adding apache ip to hosts
lineinfile:
dest: "/etc/ansible/hosts"
line: "{{ item.private_ip }} name=apache dns={{ item.public_dns_name }}
with_items: ec2.instances
when: fileoutput | changed
In your code register a variable in each and every Task if The Task has Changed to True, The Followed Task will execute otherwise it will skip that Task.