How to refer to elements of dictionary of a registered value.
My Ansible playbook look like this :
- command: echo {{ item }}
with_dict:
- foo
- bar
- baz
register: echos
Registered variable "echos" will be a dictionary :
{
"changed": true,
"msg": "All items completed",
"results": [
{
"changed": true,
"cmd": [
"echo",
"foo"
],
"delta": "0:00:00.002780",
"end": "2014-06-08 16:57:52.843478",
"invocation": {
"module_args": "echo foo",
"module_name": "command"
},
"item": "foo",
"rc": 0,
"start": "2014-06-08 16:57:52.840698",
"stderr": "",
"stdout": "foo"
},
{
"changed": true,
"cmd": [
"echo",
"bar"
],
"delta": "0:00:00.002736",
"end": "2014-06-08 16:57:52.911243",
"invocation": {
"module_args": "echo bar",
"module_name": "command"
},
"item": "bar",
"rc": 0,
"start": "2014-06-08 16:57:52.908507",
"stderr": "",
"stdout": "bar"
},
{
"changed": true,
"cmd": [
"echo",
"baz"
],
"delta": "0:00:00.003050",
"end": "2014-06-08 16:57:52.979928",
"invocation": {
"module_args": "echo baz",
"module_name": "command"
},
"item": "baz",
"rc": 0,
"start": "2014-06-08 16:57:52.976878",
"stderr": "",
"stdout": "baz"
}
]
}
Now if i want to refer to "changed" field of "foo" dictionary element of echos dictionary , How do i do that ??
First of all, your example is flawed: with_dict can't iterate over list.
But general approach is as follows:
---
- hosts: localhost
gather_facts: no
tasks:
- command: echo {{ item }}
with_items:
- foo
- bar
- baz
register: echos
# Iterate all results
- debug: msg='name {{ item.item }}, changed {{ item.changed }}'
with_items: '{{ echos.results }}'
# Select 'changed' attribute from 'foo' element
- debug: msg='foo changed? {{ echos.results | selectattr("item","equalto","foo") | map(attribute="changed") | first }}'
Related
Below is my JSON file:
[
{
"?xml": {
"attributes": {
"encoding": "UTF-8",
"version": "1.0"
}
}
},
{
"domain": [
{
"name": "mydom"
},
{
"domain-version": "12.2.1.3.0"
},
{
"server": [
{
"name": "AdminServer"
},
{
"ssl": {
"name": "AdminServer"
}
},
{
"listen_port": "12400"
},
{
"listen_address": "mydom.host1.bank.com"
}
]
},
{
"server": [
{
"name": "myserv1"
},
{
"ssl": [
{
"name": "myserv1"
},
{
"login-timeout-millis": "25000"
}
]
},
{
"listen_port": "22421"
}
]
}
]
}
]
Here is the code to get the listen port number form the json
---
- name: ReadJsonfile
hosts: localhost
tasks:
- name: Display the JSON file content
shell: "cat this.json"
register: result
- name: save the Json data to a Variable as a Fact
set_fact:
jsondata: "{{ result.stdout | from_json }}"
- name: create YML for server name with Listen port
shell: "echo {{ server.0.name }}_httpport: {{ httpport[0].listen_port }}>>{{ playbook_dir }}/wlsdatadump.yml"
loop: "{{ jsondata[1].domain }}"
vars:
server: "{{ item.server | selectattr('name', 'defined') }}"
httpport: "{{ item.server | selectattr('listen_port', 'defined') | list }}"
when: item.server is defined and (item.server | selectattr('listen_port', 'defined')) != []
I get the below error when executing the play
TASK [create YML for server name with Listen port] ************************************************************
skipping: [localhost] => (item={'name': 'mydom'})
skipping: [localhost] => (item={'domain-version': '12.2.1.3.0'})
failed: [localhost] (item={'server': [{'name': 'AdminServer'}, {'ssl': {'name': 'AdminServer'}}, {'listen_port': '12400'}, {'listen_address': 'mydom.host1.bank.com'}]}) => {"ansible_loop_var": "item", "changed": true, "cmd": "echo AdminServer_httpport: 12400>>/web/aes/admin/playbooks/dump.yml", "delta": "0:00:00.007706", "end": "2022-03-17 04:43:24.665832", "item": {"server": [{"name": "AdminServer"}, {"ssl": {"name": "AdminServer"}}, {"listen_port": "12400"}, {"listen_address": "mydom.host1.bank.com"}]}, "msg": "non-zero return code", "rc": 1, "start": "2022-03-17 04:43:24.658126", "stderr": "/bin/sh: 12400: Bad file descriptor", "stderr_lines": ["/bin/sh: 12400: Bad file descriptor"], "stdout": "", "stdout_lines": []}
If i change the port number from numeric to non-numeric say change "12400" to "portfirst" the playbook works fine.
This issue may have to do with the data type.
Can you please suggest how can i overcome this error?
you create a file listenport.j2 in folder templates:
{% for item in jsondata[1].domain if item.server is defined and (item.server | selectattr('listen_port', 'defined')) != [] %}
{{ item.server.0.name }}_httpport: {{ (item.server | selectattr('listen_port', 'defined')| list).0.listen_port }}
{% endfor %}
playbook:
- name: ReadJsonfile
hosts: localhost
tasks:
- name: Display the JSON file content
shell: "cat ./file2.json"
register: result
- name: save the Json data to a Variable as a Fact
set_fact:
jsondata: "{{ result.stdout | from_json }}"
- name: template
template:
src: listenport.j2
dest: "{{ playbook_dir }}/wlsdatadump.yml"
result in file wlsdatadump.yml:
AdminServer_httpport: 12400
myserv1_httpport: 22421
if you are working on lot of hosts (not only on localhost) and just want to create the file on localhost, use delegate_to: localhost inside the task
I am using the module csv-source-of-truth (https://github.com/joelwking/csv-source-of-truth) to get the IP and OS information from a csv file. I was able to register these info into a vsheet and using debug, I can see that I can loop through the contents of the vsheet.
However, when I use ios_command and try to loop through the vsheet, it seems that it gets stuck at the first entry of the vsheet.
This are the contents of the Inventory.csv file:
192.168.68.201,ios
192.168.68.202,ios
Code:
---
- hosts: localhost
gather_facts: false
tasks:
- name: Block
block:
- name: Use CSV
csv_to_facts:
src: '{{playbook_dir}}/NEW/Inventory.csv'
vsheets:
- INFO:
- IP
- OS
- debug:
msg: '{{item.IP}}'
loop: '{{INFO}}'
- name: Show Version
vars:
ansible_host: '{{item.IP}}'
ansible_network_os: '{{item.OS}}'
ansible_user: cisco
ansible_ssh_pass: cisco
ansible_connection: network_cli
ansible_become: yes
ansible_become_method: enable
ios_command:
commands: show version
register: output
loop: '{{INFO}}'
- name: Show the output of looped Show Version
debug:
var: output
- name: Show just the stdout_lines
debug:
var: output.results.{{item}}.stdout_lines
with_sequence: "0-{{output|length - 2}}"
You will notice on the output that it only has results for R1 when you look at the uptime information. i.e. R1 has an uptime of such and such.
PLAY [localhost] **********************************************************************************************************************************************
TASK [Use CSV] ************************************************************************************************************************************************
ok: [localhost]
TASK [debug] **************************************************************************************************************************************************
ok: [localhost] => (item={u'IP': u'192.168.68.201', u'OS': u'ios'}) => {
"msg": "192.168.68.201"
}
ok: [localhost] => (item={u'IP': u'192.168.68.202', u'OS': u'ios'}) => {
"msg": "192.168.68.202"
}
TASK [Show Version] *******************************************************************************************************************************************
ok: [localhost] => (item={u'IP': u'192.168.68.201', u'OS': u'ios'})
ok: [localhost] => (item={u'IP': u'192.168.68.202', u'OS': u'ios'})
TASK [Show the output of looped Show Version] *****************************************************************************************************************
ok: [localhost] => {
"output": {
"changed": false,
"msg": "All items completed",
"results": [
{
"ansible_loop_var": "item",
"changed": false,
"failed": false,
"invocation": {
"module_args": {
"auth_pass": null,
"authorize": null,
"commands": [
"show version"
],
"host": null,
"interval": 1,
"match": "all",
"password": null,
"port": null,
"provider": null,
"retries": 10,
"ssh_keyfile": null,
"timeout": null,
"username": null,
"wait_for": null
}
},
"item": {
"IP": "192.168.68.201",
"OS": "ios"
},
"stdout": [
-- Output removed for brevity
],
"stdout_lines": [
[
"-- Output removed for brevity
"R1 uptime is 1 hour, 34 minutes",
]
]
},
{
"ansible_loop_var": "item",
"changed": false,
"failed": false,
"invocation": {
"module_args": {
"auth_pass": null,
"authorize": null,
"commands": [
"show version"
],
"host": null,
"interval": 1,
"match": "all",
"password": null,
"port": null,
"provider": null,
"retries": 10,
"ssh_keyfile": null,
"timeout": null,
"username": null,
"wait_for": null
}
},
"item": {
"IP": "192.168.68.202",
"OS": "ios"
},
"stdout": [
-- Output removed for brevity
],
"stdout_lines": [
[
-- Output removed for brevity
"R1 uptime is 1 hour, 34 minutes",
]
]
}
]
}
}
TASK [Show just the stdout_lines] *****************************************************************************************************************************
ok: [localhost] => (item=0) => {
"ansible_loop_var": "item",
"item": "0",
"output.results.0.stdout_lines": [
[
-- Output removed for brevity
"R1 uptime is 1 hour, 34 minutes",
]
]
}
ok: [localhost] => (item=1) => {
"ansible_loop_var": "item",
"item": "1",
"output.results.1.stdout_lines": [
[
-- Output removed for brevity
"R1 uptime is 1 hour, 34 minutes",
]
]
}
PLAY RECAP ****************************************************************************************************************************************************
localhost : ok=5 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
Try to create an inventory
- name: Create inventory
add_host:
hostname: '{{ item.IP }}'
groups: temp_group_01
ansible_network_os: '{{ item.OS }}'
ansible_user: cisco
ansible_ssh_pass: cisco
ansible_connection: network_cli
ansible_become: yes
ansible_become_method: enable
loop: '{{ INFO }}'
and delegate to the hosts
- name: Show Version
ios_command:
commands: show version
register: output
delegate_to: '{{ item }}'
loop: '{{ groups['temp_group_01'] }}'
Explanation
From the play below can be seen that the connection does not obey the changed ansible_host and keeps using the first item in the loop.
- hosts: test_01
tasks:
- command: hostname
register: result
vars:
ansible_host: "{{ item }}"
loop:
- test_02
- test_03
- debug:
msg: "{{ result.results|map(attribute='stdout')|list }}"
gives
TASK [command] ******************************************************************************
changed: [test_01] => (item=test_02)
changed: [test_01] => (item=test_03)
TASK [debug] ********************************************************************************
ok: [test_01] => {
"msg": [
"test_02",
"test_02"
]
}
This behavior is very probably caused by the connection plugin because vars works as expected. The play below
- hosts: test_01
tasks:
- command: echo "{{ ansible_host }}"
register: result
vars:
ansible_host: "{{ item }}"
loop:
- test_02
- test_03
- debug:
msg: "{{ result.results|map(attribute='stdout')|list }}"
gives
TASK [command] ******************************************************************************
changed: [test_01] => (item=test_02)
changed: [test_01] => (item=test_03)
TASK [debug] ********************************************************************************
ok: [test_01] => {
"msg": [
"test_02",
"test_03"
]
}
As a result, it's not possible to loop ansible_host. Instead, delegate_to shall be used.
i am trying to set facts from a json array, since the key contains space i am unable to parse, can someone help me here,
i want to set fact as "name": "IN-FG-04" when "vdom": "vdom-shop"
Please see my sample playbook entry
- name: Iterate JSON
set_fact:
app_item: "{{ item['scope member'] }}"
with_items: "{{ result.results }}"
register: app_result
please see the json input and this is an output of my previous task
{
"msg": {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false,
"failed": false,
"msg": "Custom Query Success",
"results": [
{
"name": "FG-04-Policy",
"obj ver": 3,
"oid": 1196,
"package settings": {
"central-nat": "disable",
"fwpolicy-implicit-log": "disable",
"fwpolicy6-implicit-log": "disable",
"inspection-mode": "proxy"
},
"scope member": [
{
"name": "IN-FG-04",
"vdom": "vdom-shop"
}
],
"type": "pkg"
},
{
"name": "FG-04-DC",
"obj ver": 23,
"oid": 1216,
"package settings": {
"central-nat": "disable",
"fwpolicy-implicit-log": "disable",
"fwpolicy6-implicit-log": "disable",
"inspection-mode": "proxy"
},
"scope member": [
{
"name": "IN-FG-04",
"vdom": "vdom1-dc"
}
],
"type": "pkg"
}
]
}
}
The snippet below
set fact as "name": "IN-FG-04" when "vdom": "vdom-shop"
- name: "set fact as name: IN-FG-04 when vdom: vdom-shop"
set_fact:
name: "{{ result.results|json_query('[].\"scope member\"[?\"vdom\"==`\"vdom-shop\"`].name')|flatten|first }}"
- debug:
var: name
gives:
"name": "IN-FG-04"
Note: although this is quite a good exercice for practicing loops, you should definitely consider fixing the previous task giving the result or write your own filter.
First of all, you are using register on a set_fact task. It is not an error in itself but is of very limited interest. This will register if you correctly assigned a value to a variable, not the values themselves. So you will never get the expected result with this.
What you want to do is to append items to a list while you are looping over your json in the set_fact task. This is done by initializing your set_fact variable to an empty list with the default filter on first loop and appending a new list with your items.
Moreover, since you need to look at several level of your object at the same time to take decisions, you need to use a subelements loop: loop level 0 on each result and level 1 on each element of the scope member list. On each iteration, you will append an object to the list. In the example below, I used the ternary filter to decide which name to include.
---
- name: SO Test
hosts: localhost
vars:
result: {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false,
"failed": false,
"msg": "Custom Query Success",
"results": [
{
"name": "FG-04-Policy",
"obj ver": 3,
"oid": 1196,
"package settings": {
"central-nat": "disable",
"fwpolicy-implicit-log": "disable",
"fwpolicy6-implicit-log": "disable",
"inspection-mode": "proxy"
},
"scope member": [
{
"name": "IN-FG-04",
"vdom": "vdom-shop"
}
],
"type": "pkg"
},
{
"name": "FG-04-DC",
"obj ver": 23,
"oid": 1216,
"package settings": {
"central-nat": "disable",
"fwpolicy-implicit-log": "disable",
"fwpolicy6-implicit-log": "disable",
"inspection-mode": "proxy"
},
"scope member": [
{
"name": "IN-FG-04",
"vdom": "vdom1-dc"
}
],
"type": "pkg"
}
]
}
tasks:
- name: Get all names + vdom as requested in a list
set_fact:
app_result: >-
{{
app_result
| default([])
+
[{
'name': (item.1.vdom == 'vdom-shop') | ternary(item.0.name, item.1.name),
'vdom': item.1.vdom
}]
}}
loop: "{{ lookup('subelements', result.results, 'scope member') }}"
- name: show result
debug:
var: app_result
Which results in
PLAY [SO Test] *****************************************************************
TASK [Gathering Facts] *********************************************************
ok: [localhost]
TASK [Get all names + vdom as requested in a list] *****************************
ok: [localhost] => (item=[{'name': 'FG-04-Policy', 'obj ver': 3, 'oid': 1196, 'package settings': {'central-nat': 'disable', 'fwpolicy-implicit-log': 'disable', 'fwpolicy6-implicit-log': 'disable', 'inspection-mode': 'proxy'}, 'type': 'pkg'}, {'name': 'IN-FG-04', 'vdom': 'vdom-shop'}])
ok: [localhost] => (item=[{'name': 'FG-04-DC', 'obj ver': 23, 'oid': 1216, 'package settings': {'central-nat': 'disable', 'fwpolicy-implicit-log': 'disable', 'fwpolicy6-implicit-log': 'disable', 'inspection-mode': 'proxy'}, 'type': 'pkg'}, {'name': 'IN-FG-04', 'vdom': 'vdom1-dc'}])
TASK [show result] *************************************************************
ok: [localhost] => {
"app_result": [
{
"name": "FG-04-Policy",
"vdom": "vdom-shop"
},
{
"name": "IN-FG-04",
"vdom": "vdom1-dc"
}
]
}
PLAY RECAP *********************************************************************
localhost : ok=3 changed=0 unreachable=0 failed=0
I have hundreds of files (generated through some application) which I am trying to iterate and include them as variable files.
See below files as example. There are many more variables in each of the files, I have toned down to make the example clear.
# cat /tmp/abc/dev1.yml
---
app_name: dev1
instance: dev
port: 1234
server: test1
#
# cat /tmp/abc/dev2.yml
---
app_name: dev2
instance: dev
port: 4567
server: test2
#
# cat /tmp/abc/dev3.yml
---
app_name: dev3
instance: dev
port: 2223
server: test3
#
Now, when I use these tasks in my playbook, I can see the variables (app_name, instance, port, etc) defined in the files (/tmp/abc/*.yml) in the output as ansible_facts.
- action: shell echo "{{ item }}"
with_fileglob: /tmp/abc/*
register: res
- include_vars: "{{ item.item }}"
with_items: res.results
when: item.changed == True
register: task1
This is my output, when I run the playbook.
root#vikas027:~# ansible-playbook -v configs.yml
PLAY [dev] **************************************************************
GATHERING FACTS ***************************************************************
ok: [vikas027.test.com]
TASK: [shell echo "{{ item }}"] ***********************************************
changed: [vikas027.test.com] => (item=/tmp/abc/dev3.yml) => {"changed": true, "cmd": "echo \"/tmp/abc/dev3.yml\"", "delta": "0:00:00.004915", "end": "2015-08-31 20:11:57.702623", "item": "/tmp/abc/dev3.yml", "rc": 0, "start": "2015-08-31 20:11:57.697708", "stderr": "", "stdout": "/tmp/abc/dev3.yml", "warnings": []}
changed: [vikas027.test.com] => (item=/tmp/abc/dev2.yml) => {"changed": true, "cmd": "echo \"/tmp/abc/dev2.yml\"", "delta": "0:00:00.004945", "end": "2015-08-31 20:11:58.130295", "item": "/tmp/abc/dev2.yml", "rc": 0, "start": "2015-08-31 20:11:58.125350", "stderr": "", "stdout": "/tmp/abc/dev2.yml", "warnings": []}
changed: [vikas027.test.com] => (item=/tmp/abc/dev1.yml) => {"changed": true, "cmd": "echo \"/tmp/abc/dev1.yml\"", "delta": "0:00:00.004864", "end": "2015-08-31 20:11:58.440205", "item": "/tmp/abc/dev1.yml", "rc": 0, "start": "2015-08-31 20:11:58.435341", "stderr": "", "stdout": "/tmp/abc/dev1.yml", "warnings": []}
TASK: [include_vars {{ item.item }}] ******************************************
ok: [vikas027.test.com] => (item={u'cmd': u'echo "/tmp/abc/dev3.yml"', u'end': u'2015-08-31 20:11:57.702623', u'stderr': u'', u'stdout': u'/tmp/abc/dev3.yml', u'changed': True, u'rc': 0, 'item': '/tmp/abc/dev3.yml', u'warnings': [], u'delta': u'0:00:00.004915', 'invocation': {'module_name': u'shell', 'module_args': u'echo "/tmp/abc/dev3.yml"'}, 'stdout_lines': [u'/tmp/abc/dev3.yml'], u'start': u'2015-08-31 20:11:57.697708'}) => {"ansible_facts": {"app_name": "dev3", "instance": "dev", "port": 2223, "server": "test3"}, "item": {"changed": true, "cmd": "echo \"/tmp/abc/dev3.yml\"", "delta": "0:00:00.004915", "end": "2015-08-31 20:11:57.702623", "invocation": {"module_args": "echo \"/tmp/abc/dev3.yml\"", "module_name": "shell"}, "item": "/tmp/abc/dev3.yml", "rc": 0, "start": "2015-08-31 20:11:57.697708", "stderr": "", "stdout": "/tmp/abc/dev3.yml", "stdout_lines": ["/tmp/abc/dev3.yml"], "warnings": []}}
ok: [vikas027.test.com] => (item={u'cmd': u'echo "/tmp/abc/dev2.yml"', u'end': u'2015-08-31 20:11:58.130295', u'stderr': u'', u'stdout': u'/tmp/abc/dev2.yml', u'changed': True, u'rc': 0, 'item': '/tmp/abc/dev2.yml', u'warnings': [], u'delta': u'0:00:00.004945', 'invocation': {'module_name': u'shell', 'module_args': u'echo "/tmp/abc/dev2.yml"'}, 'stdout_lines': [u'/tmp/abc/dev2.yml'], u'start': u'2015-08-31 20:11:58.125350'}) => {"ansible_facts": {"app_name": "dev2", "instance": "dev", "port": 4567, "server": "test2"}, "item": {"changed": true, "cmd": "echo \"/tmp/abc/dev2.yml\"", "delta": "0:00:00.004945", "end": "2015-08-31 20:11:58.130295", "invocation": {"module_args": "echo \"/tmp/abc/dev2.yml\"", "module_name": "shell"}, "item": "/tmp/abc/dev2.yml", "rc": 0, "start": "2015-08-31 20:11:58.125350", "stderr": "", "stdout": "/tmp/abc/dev2.yml", "stdout_lines": ["/tmp/abc/dev2.yml"], "warnings": []}}
ok: [vikas027.test.com] => (item={u'cmd': u'echo "/tmp/abc/dev1.yml"', u'end': u'2015-08-31 20:11:58.440205', u'stderr': u'', u'stdout': u'/tmp/abc/dev1.yml', u'changed': True, u'rc': 0, 'item': '/tmp/abc/dev1.yml', u'warnings': [], u'delta': u'0:00:00.004864', 'invocation': {'module_name': u'shell', 'module_args': u'echo "/tmp/abc/dev1.yml"'}, 'stdout_lines': [u'/tmp/abc/dev1.yml'], u'start': u'2015-08-31 20:11:58.435341'}) => {"ansible_facts": {"app_name": "dev1", "instance": "dev", "port": 1234, "server": "test1"}, "item": {"changed": true, "cmd": "echo \"/tmp/abc/dev1.yml\"", "delta": "0:00:00.004864", "end": "2015-08-31 20:11:58.440205", "invocation": {"module_args": "echo \"/tmp/abc/dev1.yml\"", "module_name": "shell"}, "item": "/tmp/abc/dev1.yml", "rc": 0, "start": "2015-08-31 20:11:58.435341", "stderr": "", "stdout": "/tmp/abc/dev1.yml", "stdout_lines": ["/tmp/abc/dev1.yml"], "warnings": []}}
PLAY RECAP ********************************************************************
vikas027.test.com : ok=3 changed=1 unreachable=0 failed=0
root#vikas027:~#
How can I reference variables like app_name, instance, port, etc in other tasks ? I tried using below code and few other combinations in vain.
- debug: msg="{{ task1.app_name }}"
with_items: task1.results
Your variable files, dev1.yml, dev2.yml, etc. all reference the same variable names. Is this on purpose, or just part of your example? I ask because your example as it's currently shown, would result in just the last set of variables being defined, so as far as ansible is concerned it appears that the variables would ultimately just be defined as if you did this:
vars:
app_name: dev3
instance: dev
port: 2223
server: test3
You would just reference the variables by their given names:
- debug: var=app_name
- debug: var=instance
etc.
What I'm guessing you actually want to be doing is having those variable files look something like this:
---
app:
dev1:
instance: "dev"
port: "1234"
server: "host1"
and
---
app:
dev2:
instance: "dev"
port: "4321"
server: "host2"
You would then reference your objects something like this:
# should list "dev1", "dev2", "dev3"...
- debug: msg={{ item }}
with_dict: app
# should list the server names for each device
- debug: var = app[item][server]
with_dict: app
I was working on this whole day today, tried umpteen configuration changes in vain. Finally, it is working the way I wanted it to work.
This is what one needs to do if in a similar situation. Hope this helps someone.
First, register your facts locally. I chose the default /etc/ansible/facts.d/ directory for the same. Here are more details.
Key things to remember:-
Extension should be .fact
File should be executable (I gave 0755)
Format is JSON (I've used yaml-to-json to convert my yaml files to json. You can use ruby or perl one-liners too.)
Then, to iterate the facts registered in the previous step, we need to load/reload the facts in the playbook in order to use them in tasks/playbooks.
- local_action: setup filter=ansible_local
- template: src=nginx_lb.conf.j2 dest=/etc/nginx/conf.d/{{ item.key }}.conf
with_dict: "{{ ansible_local }}"
All variables can now be used in the jinja2 template. For example, port can be referenced as item.value.port.
Given the following playbook:
---
- name: Check if log directory exists - Step 1
stat: path="{{ wl_base }}/{{ item.0.name }}/{{ wl_dom }}/servers/{{ item.1 }}/logs" get_md5=no
register: log_dir
with_subelements:
- wl_instances
- servers
- name: Check if log directory exists - Step 2
fail: msg="Log directory does not exists or it is not a symlink."
failed_when: >
log_dir.results[0].stat.islnk is not defined
or log_dir.results[0].stat.islnk != true
or log_dir.results[0].stat.lnk_source != "{{ wl_base }}/logs/{{ wl_dom }}/{{ item.1 }}"
with_subelements:
- wl_instances
- servers
that is using the following vars:
---
wl_instances:
- name: aservers
servers:
- AdminServer
- name: mservers
servers:
- "{{ ansible_hostname }}"
the second task currently only uses one of the two possible results (results[0]).
My question is: how could I iterate over all available items stored in log_dir.results?
A sample output debug:hostvars[inventory_hostname] follows:
"log_dir": {
"changed": false,
"msg": "All items completed",
"results": [
{
"changed": false,
"invocation": {
"module_args": "path=\"/path/to/servers/aservers/domain/AdminServer/logs\" get_md5=no",
"module_name": "stat"
},
"item": [
{
"name": "aservers"
},
"AdminServer"
],
"stat": {
...
"lnk_source": "/path/to/logs/domain/AdminServer",
...
}
},
{
"changed": false,
"invocation": {
"module_args": "path=\"/path/to/servers/mservers/domain/servers/some_hostname/logs\" get_md5=no",
"module_name": "stat"
},
"item": [
{
"name": "mservers"
},
"some_hostname"
],
"stat": {
...
"lnk_source": "/path/to/logs/domain/some_hostname",
...
Looping over the results in an array (denoted by the []), would be done as
with_items: somelist
or if it's a dict that contains a list, as in this case
with_items: log_dir.results
note this can also be written
with_items: log_dir['results']
so in your task
- name: Check if log directory exists - Step 2
fail: msg="Log directory does not exists or it is not a symlink."
failed_when: >
item.stat.islnk is not defined
or item.stat.islnk != true
or item..stat.lnk_source != "{{ wl_base }}/logs/{{ wl_dom }}/{{ item.1 }}"
with_items: log_dir.results
More information and examples is available in http://docs.ansible.com/playbooks_loops.html#standard-loops.
The main thing here is that you're wanting to access only part of the registered variable.
My debug output:
{
"dkim_key.results": [
{
"changed": false,
"invocation": {
"module_args": "path=/etc/opendkim/keys/accept.example.com/mail.private get_md5=no",
"module_name": "stat"
},
"item": "accept.example.com",
"stat": {
"atime": 1427461574.5667424,
"checksum": "c882abaabvc66257555929f6290480a409d1",
"ctime": 1427461575.0307424,
"dev": 64770,
"exists": true,
"gid": 119,
"inode": 521115,
"isblk": false,
"ischr": false,
"isdir": false,
"isfifo": false,
"isgid": false,
"islnk": false,
"isreg": true,
"issock": false,
"isuid": false,
"mode": "0600",
"mtime": 1427461574.5947425,
"nlink": 1,
"pw_name": "opendkim",
"rgrp": false,
"roth": false,
"rusr": true,
"size": 887,
"uid": 110,
"wgrp": false,
"woth": false,
"wusr": true,
"xgrp": false,
"xoth": false,
"xusr": false
}
},
{
"changed": false,
"invocation": {
"module_args": "path=/etc/opendkim/keys/test.example.com/mail.private get_md5=no",
"module_name": "stat"
},
"item": "test.example.com",
"stat": {
"exists": false
}
}
]
}
Found the solution for a similar problem as follows:
- name: DKIM | Generate signing key
shell: opendkim-genkey -s {{ postfix.dkim_selector }} -d {{ item.item }} -D /etc/opendkim/keys/{{ item.item }}
with_items: dkim_key.results
when: not item.stat.exists
notify: restart opendkim
tags:
- postfix
- dkim
Using the dkim_key.results and a list to iterate over and then check against that list with item.stat.exists. Lastly getting the actual item via item.item