ansible conditions for modules parameters - ansible

Stack on this issue to make my code clear.
Example:
- name: task
copy:
src: "{{ 1 }}"
dest: "{{ 2 }}"
As I can see in doc file module copy has parameter:
remote_src: yes/no
So my question is:
Is it possible to use this parameter depends on any condition I have in a single task block?
Something like:
- name: task
copy:
src: "{{ 1 }}"
dest: "{{ 2 }}"
if my_condition == 1
remote_src: yes
else
remote_src: no
Tried if / when - but wanna see it in one task block.

Use ternary filter
- name: task
copy:
src: "{{ 1 }}"
dest: "{{ 2 }}"
remote_src: "{{ (my_condition == 1)|ternary('yes', 'no') }}"

Related

how to pass many variables in ansible?

I faced problems when I don't know how to pass many variables in with_items:
I have these vars:
- vars:
paths:
- /tmp/tecom/python3/
- /tmp/tecom/pip/
- /tmp/tecom/psycopg2/
- /tmp/tecom/docker/
- /tmp/tecom/postgresql/
files:
- python3.tar
- pip.tar
- psycopg2.tar
- docker.tar
- postgresql.tar
And I have the task that should extract the archives:
- name: unarchive "{{ item }}"
unarchive:
src: "{{ item }}"
dest: # should take the paths above. Every path should match it's own `.tar` file.
with_items: "{{ files }}"
Every path should match its own .tar file.
For example,
- debug:
msg: "unarchive {{ item }} to {{ _path }}"
loop: "{{ files }}"
vars:
_path: "{{ path }}/{{ item|splitext|first }}/"
path: /tmp/tecom
files:
- python3.tar
- pip.tar
- psycopg2.tar
- docker.tar
- postgresql.tar
gives (abridged)
msg: unarchive python3.tar to /tmp/tecom/python3/
msg: unarchive pip.tar to /tmp/tecom/pip/
msg: unarchive psycopg2.tar to /tmp/tecom/psycopg2/
msg: unarchive docker.tar to /tmp/tecom/docker/
msg: unarchive postgresql.tar to /tmp/tecom/postgresql/
Q: "How do I unarchive those files to the folders?"
A: Use the expressions as appropriate, e.g.
- name: "unarchive {{ item }}"
unarchive:
src: "{{ item }}"
dest: "{{ path }}/{{ item|splitext|first }}/"
loop: "{{ files }}"
(not tested)
It's up to you where you put the variables files and path. See Variable precedence: Where should I put a variable?

Ansible - Recursive copy

I'm trying to copy the content of my directories (located on my bastion) on a server but it doesn't work.
I tried with "with_fileglob:", "with_items:" but each times, I had the error :
"'item' is undefined"
I don't understand why.
Ths is my code which doesn't work:
tasks:
- name: Copy directories...
copy:
src: "{{ item }}"
dest: "{{ dir_dest }}/"
owner: "{{ dir_owner }}"
group: "{{ dir_group }}"
mode: '0755'
with_fileglob:
- /home/ansible/delivery/my_dir/*
whereas this one works :
tasks:
- name: Copy directories...
copy:
src: "/home/ansible/delivery/my_dir/"
dest: "{{ dir_dest }}/"
owner: "{{ dir_owner }}"
group: "{{ dir_group }}"
mode: '0755'
But I can't use this 2nd solution because I have a lot a directories to copy.
Thank for your help.
tasks:
- name: Copy directories...
copy:
src: "{{ item }}"
dest: "{{ dir_dest }}/"
owner: "{{ dir_owner }}"
group: "{{ dir_group }}"
mode: '0755'
with_fileglob:
- /home/ansible/delivery/my_dir/*
Try this.

Ansible conditionally loop through with_items?

Is it possible to loop through a list of items if a string is defined in a variable i will specify.
Essentially i want to have a list of variables defined and utilized the aws_s3 module to download the files only if they are defined when running the playbook
e.g
say i have the list "var1,var2"
and I have the following variables defined:
apps_location:
- { name: 'vars1', src: 'vars1.tgz', dest: '/tmp/vars1_file.tgz' }
- { name: 'vars2', src: 'vars2.tgz', dest: '/tmp/vars2_file.tgz' }
- { name: 'vars3', src: 'vars3.tgz', dest: '/tmp/vars3_file.tgz' }
Task:
- name: "Splunk Search Head | Download Splunk Apps from S3"
aws_s3:
bucket: "{{ resource_bucket_name }}"
object: "{{ item.src }}"
dest: "{{ item.dest }}"
mode: get
with_items: "{{ apps_location }}"
I want to run the command:
ansible-playbook -i inventory -e "var1,var2"
and download only var1 and var2 on that specific run.
I tried utilizing "lookups" but couldnt get the syntax right. Im not entirely sure if this best way of doing this, but i want to have a predefined list of file locations and only download the ones that i'm passing during runtime.
Note the only reason "name" exists in apps_location is to see if i can do a lookup and only install that one but i couldnt get the syntax right.
Define a variable containing a list of defined apps. I'm trying:
- name: "Set Fact"
set_fact:
dict: "{{ apps_location[item].dest }}"
with_items: "{{ my_vars|default([]) }}"
However whenever I output dict I only get the last value.
Any help would be appreciated :)
The extra-vars must be an assignment of a variable and value. For example
shell> ansible-playbook -i inventory -e "my_vars=['vars1','vars2']"
A more convenient structure of the data would be a dictionary for this purpose. For example
apps_location:
vars1:
src: 'vars1.tgz'
dest: '/tmp/vars1_file.tgz'
vars2:
src: 'vars2.tgz'
dest: '/tmp/vars2_file.tgz'
vars3:
src: 'vars3.tgz'
dest: '/tmp/vars3_file.tgz'
Then the loop might look like
- aws_s3:
bucket: "{{ resource_bucket_name }}"
object: "{{ apps_location[item].src }}"
dest: "{{ apps_location[item].dest }}"
mode: get
loop: "{{ my_vars|default([]) }}"
Q: "Define a variable containing a list of defined apps."
A: Try this
- set_fact:
my_list: "{{ my_list(default([]) +
[apps_location[item].dest] }}"
loop: "{{ my_vars|default([]) }}"
(not tested)

In Ansible loop, test existence of files from registered results

I have several files that I need to backup in different directories. I have tried the code below and not working for me.
vars:
file_vars:
- {name: /file1}
- {name: /etc/file2}
- {name: /etc/file/file3}
tasks:
- name: "Checking if config files exists"
stat:
path: "{{ item.name }}"
with_items: "{{ file_vars }}"
register: stat_result
- name: Backup Files
copy: src={{ item.name }} dest={{ item.name }}{{ ansible_date_time.date }}.bak
with_items: "{{ file_vars }}"
remote_src: yes
when: stat_result.stat.exists == True
The problem is the condition
when: stat_result.stat.exists == True
There is no attribute stat_result.stat. Instead, the attribute stat_result.results is a list of the results from the loop. It's possible to create a dictionary of files and their statuses. For example
- set_fact:
files_stats: "{{ dict(my_files|zip(my_stats)) }}"
vars:
my_files: "{{ stat_result.results|json_query('[].item.name') }}"
my_stats: "{{ stat_result.results|json_query('[].stat.exists') }}"
Then simply use this dictionary in the condition
when: files_stats[item.name]
Below is a shorter version which creates the dictionary more efficiently
- set_fact:
files_stats: "{{ dict(stat_result.results|
json_query('[].[item.name, stat.exists]')) }}"
Please try using below worked for me:
---
- name: Copy files
hosts: localhost
become: yes
become_user: root
vars_files:
- files.yml
tasks:
- name: "Checking if config files exists"
stat:
path: "{{ item }}"
with_items: "{{ files }}"
register: stat_result
- name: Ansible
debug:
msg: "{{ stat_result }}"
- name: Backup Files
copy:
src: "{{ item }}"
dest: "{{ item.bak }}"
with_items: "{{ files }}"
when: stat_result == "True"
and files.yml will look like:
---
files:
- /tmp/file1
- /tmp/file2
you can check you playbook syntax using below command:
ansible-playbook copy.yml --syntax-check
Also you do dry run your playbook before actual execution.
ansible-playbook -i localhost copy.yml --check

Ansible: when condition with_items

I have such a part of a playbook, which works fine:
- name: "Copy solrconfig.xml"
copy:
src: "{{role_path}}/files/{{item.path}}"
dest: "{{solr_jmx_config}}/solrconfig.xml"
with_items:
- path: solrconfig_master.xml
when: inventory_hostname == "{{ solr_master }}"
become: yes
become_user: solr
- name: "Copy solrconfig.xml"
copy:
src: "{{role_path}}/files/{{item.path}}"
dest: "{{solr_jmx_config}}/solrconfig.xml"
with_items:
- path: solrconfig_slave.xml
when: inventory_hostname != "{{ solr_master }}"
become: yes
become_user: solr
However, I would like it to look nicer and do something like that:
- name: "Copy solrconfig.xml"
copy:
src: "{{role_path}}/files/{{item.path}}"
dest: "{{solr_jmx_config}}/solrconfig.xml"
with_items:
- path: solrconfig_master.xml -> when: inventory_hostname == "{{ solr_master }}"
- path: solrconfig_slave.xml -> when: inventory_hostname != "{{ solr_master }}"
become: yes
become_user: solr
How to apply "when" condition for each particular item?
Best regards,
Marek
Why do you need with_items and role_path here? Try this:
- name: "Copy solrconfig.xml"
copy:
src: "{{ 'solrconfig_master.xml' if inventory_hostname == solr_master else 'solrconfig_slave.xml' }}"
dest: "{{solr_jmx_config}}/solrconfig.xml"
become: yes
become_user: solr
with_ is generally used for loops, you don't need it for single element.
When you call tasks inside roles, search path for file modules include <role_path>/files/....

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