I am new to Ansible as well as Ubuntu system also. I want to pass the multiple variables from .sh file to .yml. I have plan to store all input variables in an array then passing the variable one by one using for loop while calling the file distributed-setup.yml.
Currently, I am trying to pass a variable.For that,I am following the below steps.
While executing the First.sh file I am passing the a variables like First.sh Input.yaml
First.sh file is like this
echo $1
ansible-playbook distributed-setup.yml --extra-vars="v:$1" -${1:-v} | tee output.txt
Distributed-setup.yml
---
- name: Executing slaves
hosts: slave
gather_facts: no
vars:
v: "{{lookup('env','v') }}"
contents: "{{ lookup('file','/home/ubuntu/Ansible-setup/Distributed-Ubuntu-Setup/Input/Input.yaml') | from_yaml }}"
log: "{{ contents['log'][0] }}"
timeout: "{{ contents['ansible-timeout'][0] }}"
In the line, contents: I need to use variable 'v' instead of Input.yaml.
How to do this?
One of the easiest ways to do this is through the environment
someVar=value ansible-playbook ...
and then, inside your Ansible code, you can refer to ansible_env.someVar. You can also export the variable and not need to define it on the same line.
To make this a bit more concrete for your use case:
input_yaml=/home/ubuntu/Ansible-setup/Distributed-Ubuntu-Setup/Input/Input.yaml
export input_yaml
ansible-playbook distributed-setup.yml
...and in your Ansible file:
contents: "{{ lookup('file', ansible_env.input_yaml) | from_yaml }}"
This is how you could use your variable v within other ones:
---
- hosts: localhost
connection: local
gather_facts: no
vars:
v: "{{ lookup('env','v') }}"
b: "{{ lookup('file','/tmp/{{ v }}') | from_yaml }}"
tasks:
- name: set contents
set_fact:
contents: "{{ lookup('file','/tmp/{{ v }}') | from_yaml }}"
- name: debug
debug:
msg: "{{ b }} == {{ contents }}"
when: b == contents
v will get the value of the existing environment var v and then use it on var b later in a task just in case is created another variable named contents with the value of b in this case using set_fact
For testing do:
$ export v=foo
$ date > /tmp/foo
$ ansible-playbook test.yml
It will set v to foo then will create a file in /tmp/foo with the current date (output of the date command)
Related
A file has the following contents
com.dkr.container.id=a43019cc-d4a4-4acb-83dd-defd76443c6a
com.dkr.container.account=12HJB
I need to fetch a43019cc-d4a4-4acb-83dd-defd76443c6a and write it to a variable using an Ansible task. This value need to be passed to other tasks in the same Ansible file.
Can someone show me the required task to achieve this.
If your file is on the controller, you can use the file lookup to get its content.
If the file is on the node, you will have to use something like the slurp module.
Then, when you have the file content, you can use the regex_search filter to extract your required text.
With the file on the controller:
- set_fact:
com_dkr_container_id: >-
{{
lookup('file', '/path/to/file')
| regex_search('com\.dkr\.container\.id=(.*)', '\1')
| first
}}
With the file on the node(s):
- slurp:
src: /path/to/file
register: file_content
- set_fact:
com_dkr_container_id: >-
{{
file_content.content
| b64decode
| regex_search('com\.dkr\.container\.id=(.*)', '\1')
| first
}}
This is the job for the ini lookup plugin. See
shell> ansible-doc -t lookup ini
For example, given the file
shell> cat container.properties
com.dkr.container.id=a43019cc-d4a4-4acb-83dd-defd76443c6a
com.dkr.container.account=12HJB
The playbook
- hosts: localhost
tasks:
- set_fact:
id: "{{ lookup('ini', 'com.dkr.container.id
type=properties
file=container.properties') }}"
- debug:
var: id
gives
id: a43019cc-d4a4-4acb-83dd-defd76443c6a
The lookup plugins work on the controller only. If the file is at the remote host fetch it, e.g. given the file
shell> ssh admin#test_11 cat container.properties
com.dkr.container.id=a43019cc-d4a4-4acb-83dd-defd76443c6a
com.dkr.container.account=12HJB
The playbook
- hosts: test_11
tasks:
- fetch:
src: container.properties
dest: /tmp/fetched
- set_fact:
id: "{{ lookup('ini', 'com.dkr.container.id
type=properties
file=/tmp/fetched/{{ inventory_hostname }}/container.properties') }}"
- debug:
var: id
gives the same result
id: a43019cc-d4a4-4acb-83dd-defd76443c6a
The playbook above is idempotent. The file will be stored at the controller
shell> tree /tmp/fetched/
/tmp/fetched/
└── test_11
└── container.properties
first line: /u01/app/oracle/oradata/TEST/
second line: /u02/
How to read both lines in a same variable and by using same varible i want know the present working directory through shell commands in ansible
You can use command to read a file from disk
- name: Read a file into a variable
command: cat /path/to/your/file
register: my_variable
And then do something like below to loop over the lines in the file.
- debug: msg="line: {{ item }}"
loop: y_variable.stdout_lines
The task below creates the list of the lines from a file
- set_fact:
lines_list: "{{ lines_list|default([]) + [item] }}"
with_lines: cat /path/to/file
It's possible to create both a list
"lines_list": [
"/u01/app/oracle/oradata/TEST/",
"/u02/"
]
and a dictionary
"lines_dict": {
"0": "/u01/app/oracle/oradata/TEST/",
"1": "/u02/"
}
with the combine filter
- set_fact:
lines_dict: "{{ lines_dict|default({})|combine({idx: item}) }}"
with_lines: cat /path/to/file
loop_control:
index_var: idx
"Present working directory through shell commands in ansible" can be printed from the registered variable. For example
- command: echo $PWD
register: result
- debug:
var: result.stdout
(not tested)
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?
i am trying to read variables from a file into an array of something, but not into a pre defined variable.
The goal is a playbook, that searches for lines with item.0 and NOT item.1 and deletes them, later the playbook makes sure, that a line with item.0 item.1 is present, thats why i need this splitted.
For example i have a file with lines like this:
Parameter Value
Parameter Value
Parameter Value
to use this in a loop until EOF.
example part ot the playbook:
- name: lineinfile loop
lineinfile:
path: /myfile
regexp '^{{somethinglike item.0}}.(?!{{something like item.1}})'
state absent
...
Does anybody know a solution for the lookup and the loop?
Best regards
This should help you.
Input file
cat filein
Parameter1,Value1
Parameter2,Value2
Parameter3,Value3
Playbook:
---
- hosts: test
tasks:
- name: reg
shell: cat filein
register: myitems
- name: deb
debug: var=myitems.stdout_lines
- name: echo to file
shell: "echo {{ item.split(',')[1] }} - {{ item.split(',')[0] }} >> fileout"
with_items: "{{ myitems.stdout_lines }}"
Output file:
cat fileout
Value1 - Parameter1
Value2 - Parameter2
Value3 - Parameter3
This is not state of the art but should work.
The solutuion:
There is a ansible role in ansible galaxy, it provides exactly what i need:
https://github.com/mkouhei/ansible-role-includecsv
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.