Here is my play:
- name: Tag ec2 instances
hosts: localhost
tasks:
- name: Print Hosts
debug: var=hostvars[item]['ec2_id']
with_inventory_hostnames: all
- name: Print Hosts 2
debug: msg={{hostvars[item]['ec2_id']}}
with_inventory_hostnames: all
- name: Tag Hosts
ec2_tag:
resource: "{{ hostvars[item]['ec2_id'] }}"
region: ap-southeast-2
args:
tags: {mytag: 'myvalue'}
with_inventory_hostnames: all
Can anyone explain why the second task fails with the following error while the first one is successful?
...
ok: [localhost] => (item=172.31.11.37) => {
"hostvars[item]['ec2_id']": "i-xxxxxx",
"item": "172.31.11.37"
}
TASK [Print Hosts 2] ***********************************************************
fatal: [localhost]: FAILED! => {"failed": true, "msg": "'dict object' has no attribute 'ec2_id'"}
debug module with var=hostvars[item]['ec2_id'] will not fail if anything to the right of equal sign is undefined.
While msg={{hostvars[item]['ec2_id']}} will fail if the part in braces can't be templated.
In your example this may fail for localhost because I'm almost sure that ec2_id is not defined for localhost.
To avoid this, you can apply when statement to your loop, as follows:
- name: Print Hosts 2
debug: msg={{hostvars[item]['ec2_id']}}
when: hostvars[item]['ec2_id'] is defined
with_inventory_hostnames: all
Related
I am facing error while executing below ansible playbook. I don't know what I am missing, in with_items
Trying to retrieve disk details using gather_subset module and partition each disk that is available in the file system by looping into the var
Error Message:
fatal: [localhost]: FAILED! => {"msg": "'dict object' has no attribute 'list'"}
Playbook:
---
- hosts: localhost
become: true
gather_facts: false
tasks:
- name: Collect Disk Information
setup:
gather_subset:
- hardware
- name: Print disks Details
debug:
var: hostvars[inventory_hostname].ansible_devices.keys()| list
- name: Create Partition
parted:
device: "{{ item }}"
number: 1
part_type: 'primary'
state: present
with_items: "{{ disks.list[0] }}"
Print disk details task is printing below
TASK [Print disks Details] ***************************************************************************************************
ok: [localhost] => {
"hostvars[inventory_hostname].ansible_devices.keys()| list": [
"xvdf",
"xvdb",
"xvdc",
"xvda"
]
}
I see an issue in your example, you are refering to var disks, but I cannot see this is set anywhere in your example.
You should replace your last syntax:
- name: Create Partition
parted:
device: "{{ item }}"
number: 1
part_type: 'primary'
state: present
with_items: "{{hostvars[inventory_hostname].ansible_devices.keys()}}"
I have some variables defined like this:
x_php_versions_installed:
php70:
- php70-curl
- php70-xml
- php70-xmlrpc
- php70-zip
- pecl-memcached
php71:
- php71-curl
- php71-xml
- php71-xmlrpc
- php71-zip
php72:
- php72-curl
- php72-xml
- php72-xmlrpc
- php72-zip
- pecl-memcached
And I would like to check all of the vars (php70, php71, php72 and so on) has this variable: pecl-memcached and if one has, then run a command. My playbook looks like this:
- name: memcached pecl install
pear:
executable: '/usr/local/{{ item }}/bin/pecl'
name: 'pecl/memcached'
state: 'latest'
with_items: '{{ x_php_versions_installed | list }}'
when: 'item.pecl-memcached is defined'
this should call the /usr/local/php70/bin/pecl and /usr/local/php72/bin/pecl binary to install memcached. As soon as I remove the when condition, it works very well, but it will call every variable inside x_php_versions_installed not only where pecl-memcached is defined. So I need to fix the when condition in this case, but all of my tries are gives me an error.
If you want your when to check a list properly, you'll have to use the test operator in of Jinja:
- name: memcached pecl install
pear:
executable: '/usr/local/{{ item }}/bin/pecl'
name: 'pecl/memcached'
state: 'latest'
with_items: '{{ x_php_versions_installed | list }}'
when: "'pecl-memcached' in x_php_versions_installed[item]"
Given the playbook:
- hosts: localhost
gather_facts: no
vars:
x_php_versions_installed:
php70:
- php70-curl
- php70-xml
- php70-xmlrpc
- php70-zip
- pecl-memcached
php71:
- php71-curl
- php71-xml
- php71-xmlrpc
- php71-zip
php72:
- php72-curl
- php72-xml
- php72-xmlrpc
- php72-zip
- pecl-memcached
tasks:
- debug:
msg: "{{ item }}"
with_items: "{{ x_php_versions_installed | list }}"
when: "'pecl-memcached' in x_php_versions_installed[item]"
The recap would be:
TASK [debug] *******************************************************************
ok: [localhost] => (item=php70) => {
"msg": "php70"
}
skipping: [localhost] => (item=php71)
ok: [localhost] => (item=php72) => {
"msg": "php72"
}
Your subelement is a list not a dictionary, so accessing an element key like your are trying here, i.e.:
when: "x_php_versions_installed[item]['pecl-memcached'] is defined"
would work on a dictionary like this one:
x_php_versions_installed:
php70:
php70-curl:
php70-xml:
php70-xmlrpc:
php70-zip:
pecl-memcached:
# same goes for the other versions of PHP
Given the playbook:
- hosts: localhost
gather_facts: no
vars:
x_php_versions_installed:
php70:
php70-curl:
php70-xml:
php70-xmlrpc:
php70-zip:
pecl-memcached:
php71:
php71-curl:
php71-xml:
php71-xmlrpc:
php71-zip:
php72:
php72-curl:
php72-xml:
php72-xmlrpc:
php72-zip:
pecl-memcached:
tasks:
- debug:
msg: "{{ item }}"
with_items: "{{ x_php_versions_installed | list }}"
when: "x_php_versions_installed[item]['pecl-memcached'] is defined"
The recap would be:
TASK [debug] *******************************************************************
ok: [localhost] => (item=php70) => {
"msg": "php70"
}
skipping: [localhost] => (item=php71)
ok: [localhost] => (item=php72) => {
"msg": "php72"
}
I need to use variable defined for some hosts (in inventory), on another host.
Here i define it in my inventory
[mygroup:vars]
service_url=my_front_url
Where mygroup contain other groups, containing my hosts.
Then my playbook :
- name: Get variable
hosts: 127.0.0.1
tasks:
- debug:
var: hostvars[groups['{{ platform }}'][0]]['service_url']
- debug:
msg: "{{ hostvars[groups['\"{{ platform }}\"'][0]]['service_url'] }}"
Where platform is an extra-var (setting which "mygroup" to use)
and where 127.0.0.1 is my ansible host, distinct from my target hosts.
ex:
ansible-playbook test.yaml --extra-vars='platform=my-group'
TASK [debug] ********************************************************************************************************************************************************************
ok: [127.0.0.1] => {
"hostvars[groups['idi_se_prod'][0]]['service_url']": "my-front-url"
}
TASK [debug] ********************************************************************************************************************************************************************
fatal: [127.0.0.1]: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: 'dict object' has no attribute '\"{{ platform }}\"'\n\nThe error appears to have been in 'XXXX/ansible/test.yaml': line 6, column 5, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n var: hostvars[groups['{{ platform }}'][0]]['service_url']\n - debug:\n ^ here\n"}
If i set static group name in yaml, this work fine.
- name: Get variable
hosts: 127.0.0.1
tasks:
- debug:
var: hostvars[groups['{{ platform }}'][0]]['service_url']
- debug:
msg: "{{ hostvars[groups['mygroup'][0]]['service_url'] }}"
TASK [debug] ********************************************************************************************************************************************************************
ok: [127.0.0.1] => {
"hostvars[groups['my-group'][0]]['service_url']": "my-front-url"
}
TASK [debug] ********************************************************************************************************************************************************************
ok: [127.0.0.1] => {
"msg": "my_front_url"
}
It look like a syntax probleme but i tried so many ways that i think i could use some help.
Thank you
Nicolas
Everything inside {{ and }} is more or less just python, so don't use recursive templates like you have:
msg: "{{ hostvars[groups['\"{{ platform }}\"'][0]]['service_url'] }}"
instead just reference the variable like it is, a variable:
msg: "{{ hostvars[groups[platform][0]]['service_url'] }}"
I have the following task which works perfectly as expected. I am wondering if the failure message can be a bit more informative since I am passing no_log: true without which I could see the entire result in the logs. Something like:
More than one access keys available for the cos account {{ item.name }}
- name: Fail if more than one key is available for any of the COS accounts
fail: msg="More than one access keys available for the cos account"
when: (item.json)|length > 1
with_items: '{{ old_existing_creds.results }}'
no_log: true
In fact I noticed I could not even see the msg. The o/p I got is:
TASK [Fail if more than one key is available for any of the COS accounts] *****************************************************************************
skipping: [localhost] => (item=None)
failed: [localhost] (item=None) => {"censored": "the output has been hidden due to the fact that 'no_log: true' was specified for this result", "changed": false}
fatal: [localhost]: FAILED! => {"censored": "the output has been hidden due to the fact that 'no_log: true' was specified for this result", "changed": false}
to retry, use: --limit #/root/deployment/generateSLKeys.retry
You've asked Ansible not to log the result of your task by setting no_log: true, so you're not going to be able to see the result of the fail task. You can hack around this by first creating a new variable that maps names from your old_existing_creds variables to the length of the json attribute, like this:
---
- hosts: localhost
gather_facts: false
vars:
old_existing_creds:
results:
- json: [secret1,secret2]
name: foo
- json: [secret1]
name: bar
tasks:
- name: check length of json array
set_fact:
key_check: "{{ key_check|default({})|combine({item.name: item.json|length}) }}"
loop: "{{ old_existing_creds.results }}"
- debug:
var: key_check
- name: Fail if more than one key is available for any of the COS accounts
fail:
msg: "More than one access keys available for the cos account {{ item.key }}"
when: (item.value > 1)
loop: "{{ key_check|dict2items }}"
This will output:
TASK [Fail if more than one key is available for any of the COS accounts] *********************
failed: [localhost] (item={'key': u'foo', 'value': 2}) => {"changed": false, "item": {"key": "foo", "value": 2}, "msg": "More than one access keys available for the cos account foo"}
skipping: [localhost] => (item={'key': u'bar', 'value': 1})
As you can see, it shows the message from the fail task, which includes the account name, but it does not expose credentials in the log.
I am getting the following error while running my ansible playbook.
TASK [base : Rsyslog yapilandiriliyor.]
**************************************** fatal: [gkts.ahtapot]: FAILED! => {"failed": true, "msg": "The conditional check
'ansible_fqdn == {{item.1}}' failed. The error was: error while
evaluating conditional (ansible_fqdn == {{item.1}}): 'item' is
undefined\n\nThe error appears to have been in
'/etc/ansible/roles/base/tasks/rsyslog.yml': line 2, column 3, but
may\nbe elsewhere in the file depending on the exact syntax
problem.\n\nThe offending line appears to be:\n\n---\n- name: Rsyslog
yapilandiriliyor.\n ^ here\n"}
This worked fine in ansible 1.7 but doesn't work in ansible 2.2.1
- name: Rsyslog yapilandiriliyor.
template:
src: "{{ rsyslog['conf']['source'] }}"
dest: "{{ rsyslog['conf']['destination'] }}"
owner: "{{ rsyslog['conf']['owner'] }}"
group: "{{ rsyslog['conf']['group'] }}"
mode: "{{ rsyslog['conf']['mode'] }}"
# when: "ansible_fqdn == item.1"
when: "ansible_fqdn == {{item.1}}"
with_subelements:
- "{{ossimciks}}"
- "{{clients}}"
notify:
- rsyslog servisini yeniden baslat
sudo: yes
tags: rsyslog
ossimciks and clients are defined in my vars file:
ossimciks:
server01:
fqdn: "OSSIMCIK_FQDN"
port: "20514"
clients:
- "LOG_KAYNAGI_FQDN"
- "LOG_KAYNAGI_FQDN"
What am I missing?
with_subelements:
- "{{ossimciks}}"
- "{{clients}}"
Syntax
I don't know how where/how/when this might have changed in Ansible, but I think that
the first element in with_subelements is a variable, and
the second element in with_subelements is a key.
This works in playbooks I've written, and matches the relevant docs (since 2.5, there are no with_* loops [1] in the docs since they were always lookups anyhow [2]):
with_subelements:
- "{{ ossimciks }}"
- clients
Data
It's not clear to me which item you're attempting to target with {{ item.1 }} in your playbook, but if making a minor change to your data is permissible, you can structure it so that any of the information shown is accessible within a with_subelements loop (I've also expanded and restructured the data a bit to clarify what the loop is doing):
---
- hosts: localhost
gather_facts: false
vars:
fqdn_var: "OSSIMCIK_FQDN_2"
ossimciks:
- server: "server01"
fqdn: "OSSIMCIK_FQDN_1"
port: "20514"
clients:
- "LOG_KAYNAGI_FQDN_1"
- "LOG_KAYNAGI_FQDN_2"
- server: "server02"
fqdn: "OSSIMCIK_FQDN_2"
port: "20514"
clients:
- "LOG_KAYNAGI_FQDN_1"
- "LOG_KAYNAGI_FQDN_2"
tasks:
- name: Output ossimciks contents.
debug:
msg: "{{ item.0.server }} client: {{ item.1 }}"
with_subelements:
- "{{ ossimciks }}"
- clients
when: item.0.fqdn == fqdn_var
This outputs:
skipping: [localhost] => (item=None) => {"skip_reason": "Conditional result was False"}
skipping: [localhost] => (item=None) => {"skip_reason": "Conditional result was False"}
ok: [localhost] => (item=None) => {
"msg": "server02 client: LOG_KAYNAGI_FQDN_1"
}
ok: [localhost] => (item=None) => {
"msg": "server02 client: LOG_KAYNAGI_FQDN_2"
}
[1] http://docs.ansible.com/ansible/latest/user_guide/playbooks_loops.html
[2] Loops are actually a combination of things with_ + lookup(), so any lookup plugin can be used as a source for a loop, ‘items’ is lookup.
Edited to add: the playbooks where I've used the syntax above were definitely in the 2.x release series--I think ~2.1.