I have a playbook below:
- hosts: localhost
vars:
folderpath:
folder1/des
folder2/sdf
tasks:
- name: Create a symlink
shell: "echo {{folderpath}} | awk -F'/' '{system(\"mkdir \" $1$2 );}'"
register: result
#- debug:
# msg: "{{ result.stdout }}"
with_items:
- " {{folderpath}} "
However when I run the playbook I get 2 folders made. The first one is :
1- folder1des (as expected)
2- folder2 (this should ideally be folder2sdf )
I have tried many combination and still it doesnt want to work. What do I need to have it work properly.
I do not have ansible environment at the moment. But following should work:
- hosts: localhost
tasks:
- name: Create a symlink
shell: "echo {{item}} | awk -F'/' '{system(\"mkdir \" $1$2 );}'"
register: result
#- debug:
# msg: "{{ result.stdout }}"
with_items:
- folder1/des
- folder2/sdf
Reference: Ansible Loops Example
Explanation:
You were adding a single list object to the with_items. so in your with_items it finds only one object (which is of type list) to iterate over. Hence it runs only once. So now what I have done is I have passed a list of items to with_items that way it can iterate over the multiple items present in with_items.
Hope this helps!
Maybe
- hosts: localhost
vars:
folderpath:
folder1/des
folder2/sdf
tasks:
- name: Create a symlink
file:
state : link
path : "{{ item | regex_replace('[0-9]/','_') }}"
src : "{{ item }}"
with_items: " {{ folderpath }} "
Nothing in your given code creates symlinks. Is that really what you meant to do?
Related
I'm trying write role to install MySql 8, and get problem with this:
- name: Extract root password from logs into {{ mysql_root_old_password }} variable
ansible.builtin.slurp:
src: "{{ mysql_logfile_path }}"
register: mysql_root_old_password
#when: "'mysql' in ansible_facts.packages"
- name: Extract root password from logs into {{ mysql_root_old_password }} variable
set_fact:
mysql_root_old_password: "{{ mysql_root_old_password.content | b64decode | regex_findall('generated for root#localhost: (.*)$', 'multiline=true') }}"
#when: "'mysqld' in ansible_facts.packages"
- name: Get Server template
ansible.builtin.template:
src: "{{ item.name }}.j2"
dest: "{{ item.path }}"
loop:
- { name: "my.cnf", path: "/root/.my.cnf" }
notify:
- Restart mysqld
on the .my.cnf I get password with quotes and brackets:
[client]
user=root
password=['th6k(gZeJSt4']
How to trim that?
What I try:
- name: trim password
set_fact:
mysql_root_old_password2: "{{ mysql_root_old_password | regex_findall('[a-zA-Z0-9,()!##$%^&*]{12}')}}"
Thanks.
The result of regex_findall is a list because there might be more matches. Take the last item
- set_fact:
mysql_root_old_password: "{{ mysql_root_old_password.content|
b64decode|
regex_findall('generated for root#localhost: (.*)$', 'multiline=true')|
last }}"
From your description
on the .my.cnf I get password with quotes and brackets ... How to trim that
I understand that you like to read a INI file like my.cnf.ini
[client]
user=root
password=['A1234567890B']
where the value of the key password looks like a list with one element in YAML and the structure doesn't change, but you are interested in the value without leading and trailing square brackets and single quotes only.
To do so there are several possibilities.
Via Ansible Lookup plugins
---
- hosts: localhost
become: false
gather_facts: false
tasks:
- name: Extract root password from INI file
debug:
msg: "{{ lookup('ini', 'password section=client file=my.cnf.ini') }}"
register: result
- name: Show result with type
debug:
msg:
- "{{ result.msg }}"
- "result.msg is of type {{ result.msg | type_debug }}"
- "Show password only {{ result.msg[0] }}" # the first list element
Such approach will work on the Control Node.
Like all templating, lookups execute and are evaluated on the Ansible control machine.
Further Q&A
How to read a line from a file into an Ansible variable
What is the difference between .ini and .conf?
Further Documentation
ini lookup – read data from an INI file
Via Ansible shell module, sed and cut.
---
- hosts: localhost
become: false
gather_facts: false
tasks:
- name: Extract root password from INI file
shell:
cmd: echo $(sed -n 's/^password=//p' my.cnf.ini | cut -d "'" -f 2)
register: result
- name: Show result
debug:
msg: "{{ result.stdout }}"
Please take note regarding "I get password with quotes and brackets ... ['<pass>'] ... How to trim that?" that from perspective of the SQL service, .cnf file, [' and '] are actually part of the password!
- name: Server template
template:
src: "my.cnf.ini"
dest: "/root/.my.cnf"
If that is correct they will be necessary for proper function of the service.
For me the below code is working -
with_items: "{{ groups['mlpoc'] }}" but instead of hardcoded mlpoc I want to pass it in a variable as a parameter.
Say the command parameter is mlhosts=mlpoc and I want to use the variable instead of hardcoded value, something like -
with_items: "{{ groups['{{ mlhosts }}'] }}" but it throws error. Is it even possible to pass a dynamic value to groups ?
Here is my code -
- hosts: dbsrd3510
user: '{{ mluser }}'
gather_facts: no
no_log: false
tasks:
- name: Fetch source list from clients
with_items: "{{ groups['mlpoc'] }}"
shell: rsync -av /MLbackup/{{ pkg }} {{ mluser }}#{{ item }}:/tmp/
Try something like this,
---
- hosts: all
gather_facts: no
tasks:
- name: Add a line to a file if the file does not exist, without passing regexp
debug:
msg: "{{ item }}"
with_items: " {{ groups[group_name] }} "
And you can test the above changes using,
ansible-playbook -i hosts main.yml -e group_name="all"
As a follow up to this question How to read a particular part of file in ansible. I am trying to do the same but by using roles. The variables are stored in vars files
Here is the vars/main.yml file in the role
add:
commands: []
sub:
commands: []
multiply:
commands: []
div:
commands: []
Here's the code in tasks/main.yml file
- name: Getting the Add Commands
set_fact:
add.commands: "{{add.commands + [ item ]}}"
with_lines: "cat {{ {{playbook_dir}}/testing/files/data.txt }}"
when: item is search('^add')
- debug:
var: add.commands
- name: Getting the Sub Commands
set_fact:
sub.commands: "{{sub.commands + [ item ]}}"
with_lines: "cat {{ {{playbook_dir}}/testing/files/data.txt }}"
when: item is search('^sub')
- debug:
var: sub.commands
- name: Getting the Multiply Commands
set_fact:
multiply.commands: "{{multiply.commands + [ item ]}}"
with_lines: "cat {{ {{playbook_dir}}/testing/files/data.txt }}"
when: item is search('^multiply')
- debug:
var: multiply.commands
- name: Getting the Div Commands
set_fact:
div.commands: "{{div.commands + [ item ]}}"
with_lines: "cat {{ {{playbook_dir}}/testing/files/data.txt }}"
when: item is search('^div')
- debug:
var: div.commands
Code to execute the role
testing.yml
- name: Main Program
hosts: localhost
roles:
- testing
I thought that I would get the add commands for add.commands and similarly for others but I am getting the following error
"msg": "The variable name 'add.commands' is not valid. Variables must start with a letter or underscore character, and contain only letters, numbers and underscores."
Can anyone tell me how to troubleshoot this error and why it happened in the first place.
This is as expected and the error clearly states that.
Also as per ansible,
Variable names should be letters, numbers, and underscores. Variables
should always start with a letter.
So . can't be part of the variable name.
I have created playbook which will run on a remote host and check whether the files exist or not. I want to extract the only files which are not present on the remote host. But my playbook giving all paths whether they are present or not.
Playbook:-
- name: Playbook for files not present on remote hosts
hosts: source
gather_facts: false
vars:
Filepath: /opt/webapps/obiee/oracle_common/inventory/ContentsXML/comps.xml
tasks:
- name: Getting files location path
shell: grep -i "COMP NAME" {{ Filepath }} |sed 's/^.*INST_LOC="//'|cut -f1 -d'"' | sed '/^$/d;s/[[:blank:]]//g' // extract files from comps.xml
register: get_element_attribute
- name: check path present or not
stat:
path: "{{ item }}"
with_items:
- "{{ get_element_attribute.stdout_lines }}"
register: path_output
- name: path exists or not
set_fact:
path_item: "{{ item }}" # here i am getting the output as expected that's files not present on remote host
with_items: "{{ path_output.results }}"
register: final_output
when: item.stat.exists == False
- debug:
var: final_output # giving both output i.e. files present and absent
- name: Create a fact list
set_fact:
paths: "{{ final_output.results | map(attribute='item.item') | list }}" # i have add this condition " item.stat.exists == False' inside this stmt
- name: Print Fact
debug:
var: paths
The issue resolved by using below command:
- name: Create a fact list
set_fact:
paths: "{{ final_output.results | selectattr('item.stat.exists', 'equalto', false) | map(attribute='item.item') | list }}"
register: config_facts
The following query should get all the file names which don't exsist on the remote host and store them in the fact 'paths':
- name: Create a fact list
set_fact:
paths: "{{ final_output | json_query(query)}}"
vars:
query: "results[?(#._ansible_item_label.stat.exists==`false`)]._ansible_item_label.item"
I have seen how to register variables within tasks in an ansible playbook and then use those variables elsewhere in the same playbook, but can you register a variable in an included playbook and then access those variables back in the original playbook?
Here is what I am trying to accomplish:
This is my main playbook:
- include: sub-playbook.yml job_url="http://some-jenkins-job"
- hosts: localhost
roles:
- some_role
sub-playbook.yml:
---
- hosts: localhost
tasks:
- name: Collect info from Jenkins Job
script: whatever.py --url "{{ job_url }}"
register: jenkins_artifacts
I'd like to be able to access the jenkins_artifacts results back in main_playbook if possible. I know you can access it from other hosts in the same playbook like this: "{{ hostvars['localhost']['jenkins_artifacts'].stdout_lines }}"
Is it the same idea for sharing across playbooks?
I'm confused what this question is about. Just use the variable name jenkins_artifacts:
- include: sub-playbook.yml job_url="http://some-jenkins-job"
- hosts: localhost
debug:
var: jenkins_artifacts
This might seem complicated but I love doing this in my Playbooks:
rc defines the name of the variable which contains the return value
ar gives the arguments to the include tasks
master.yml:
- name: verify_os
include_tasks: "verify_os/main.yml"
vars:
verify_os:
rc: "isos_present"
ar:
image: "{{ os.ar.to_os }}"
verify_os/main.yml:
---
- name: check image on device
ios_command:
commands:
- "sh bootflash: | inc {{ verify_os.ar.image }}"
register: image_check
- name: check if available
shell: "printf '{{ image_check.stdout_lines[0][0] }}\n' | grep {{ verify_os.ar.image }} | wc -l"
register: image_available
delegate_to: localhost
- set_fact: { "{{ verify_os.rc }}": "{{ true if image_available.stdout == '1' else false }}" }
...
I can now use the isos_present variable anywhere in the master.yml to access the returned value.