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0

I want to run a command on y hostgroups which gives '1' in stdout. After running in all hosts, I want sum of all 1.

For example, it runs on 5 hosts, for all 5 hosts I'll get 1 ... at the end I want 5 as output

Or may be a way to execute the command and calculate the sum in one task only.

- name: Check file in tmp
 shell: ls -ltrh /tmp/a.txt | wc -l
 register: count
 when: "'webserver' in group_names"

ansible

share|improve this question

asked Mar 26 at 16:14

RamanRaman

1955 bronze badges

add a comment | 

0

I want to run a command on y hostgroups which gives '1' in stdout. After running in all hosts, I want sum of all 1.

For example, it runs on 5 hosts, for all 5 hosts I'll get 1 ... at the end I want 5 as output

Or may be a way to execute the command and calculate the sum in one task only.

- name: Check file in tmp
 shell: ls -ltrh /tmp/a.txt | wc -l
 register: count
 when: "'webserver' in group_names"

ansible

share|improve this question

asked Mar 26 at 16:14

RamanRaman

1955 bronze badges

add a comment | 

I want to run a command on y hostgroups which gives '1' in stdout. After running in all hosts, I want sum of all 1.

For example, it runs on 5 hosts, for all 5 hosts I'll get 1 ... at the end I want 5 as output

Or may be a way to execute the command and calculate the sum in one task only.

- name: Check file in tmp
 shell: ls -ltrh /tmp/a.txt | wc -l
 register: count
 when: "'webserver' in group_names"

ansible

share|improve this question

asked Mar 26 at 16:14

RamanRaman

1955 bronze badges

- name: Check file in tmp
 shell: ls -ltrh /tmp/a.txt | wc -l
 register: count
 when: "'webserver' in group_names"

share|improve this question

asked Mar 26 at 16:14

RamanRaman

1955 bronze badges

share|improve this question

asked Mar 26 at 16:14

RamanRaman

1955 bronze badges

asked Mar 26 at 16:14

RamanRaman

1955 bronze badges

asked Mar 26 at 16:14

RamanRaman

1955 bronze badges

2 Answers
2

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0

An option would be to create a temporary file and use it for the shared purpose. The play below

- hosts: test_jails
 gather_facts: true
 tasks:
 - name: Create tempfile
 tempfile:
 state: file
 register: fcounter
 run_once: true
 delegate_to: localhost
 - name: Write hostname to the tempfile
 shell: "echo ansible_hostname >> fcounter.path "
 delegate_to: localhost

 # < --------- HERE COMES THE PLAY --------- >

 - name: Print number of hosts
 shell: "cat fcounter.path | wc -l"
 register: counter
 run_once: true
 delegate_to: localhost
 - debug:
 var: counter.stdout
 run_once: true

gives:

ok: [test_01] => 
"counter.stdout": "3"

PLAY RECAP ****************************************************************
test_01 : ok=5 changed=3 unreachable=0 failed=0 
test_02 : ok=2 changed=1 unreachable=0 failed=0 
test_03 : ok=2 changed=1 unreachable=0 failed=0

share|improve this answer

answered Mar 27 at 0:15

Vladimir BotkaVladimir Botka

6,35822 gold badges66 silver badges1919 bronze badges

add a comment | 

0

If I get your exact need, you can get the result without using shell. Please note that using json_query in my example below requires pip install jmespath. If this is not possible, you can most probably achieve the same result using the map filter combining 'extract' and 'attribute='.

- name: Check file exists on server
 stat:
 path: /tmp/a.txt
 register: a_file
 when: whatever_condition

- name: Count number of matches
 debug:
 msg: >-
 map('ternary', 1, 0)
 
 delegate_to: localhost
 run_once: true

share|improve this answer

edited Mar 27 at 16:42

answered Mar 27 at 16:36

ZeitounatorZeitounator

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0

An option would be to create a temporary file and use it for the shared purpose. The play below

- hosts: test_jails
 gather_facts: true
 tasks:
 - name: Create tempfile
 tempfile:
 state: file
 register: fcounter
 run_once: true
 delegate_to: localhost
 - name: Write hostname to the tempfile
 shell: "echo ansible_hostname >> fcounter.path "
 delegate_to: localhost

 # < --------- HERE COMES THE PLAY --------- >

 - name: Print number of hosts
 shell: "cat fcounter.path | wc -l"
 register: counter
 run_once: true
 delegate_to: localhost
 - debug:
 var: counter.stdout
 run_once: true

gives:

ok: [test_01] => 
"counter.stdout": "3"

PLAY RECAP ****************************************************************
test_01 : ok=5 changed=3 unreachable=0 failed=0 
test_02 : ok=2 changed=1 unreachable=0 failed=0 
test_03 : ok=2 changed=1 unreachable=0 failed=0

share|improve this answer

answered Mar 27 at 0:15

Vladimir BotkaVladimir Botka

6,35822 gold badges66 silver badges1919 bronze badges

add a comment | 

0

An option would be to create a temporary file and use it for the shared purpose. The play below

- hosts: test_jails
 gather_facts: true
 tasks:
 - name: Create tempfile
 tempfile:
 state: file
 register: fcounter
 run_once: true
 delegate_to: localhost
 - name: Write hostname to the tempfile
 shell: "echo ansible_hostname >> fcounter.path "
 delegate_to: localhost

 # < --------- HERE COMES THE PLAY --------- >

 - name: Print number of hosts
 shell: "cat fcounter.path | wc -l"
 register: counter
 run_once: true
 delegate_to: localhost
 - debug:
 var: counter.stdout
 run_once: true

gives:

ok: [test_01] => 
"counter.stdout": "3"

PLAY RECAP ****************************************************************
test_01 : ok=5 changed=3 unreachable=0 failed=0 
test_02 : ok=2 changed=1 unreachable=0 failed=0 
test_03 : ok=2 changed=1 unreachable=0 failed=0

share|improve this answer

answered Mar 27 at 0:15

Vladimir BotkaVladimir Botka

6,35822 gold badges66 silver badges1919 bronze badges

add a comment | 

An option would be to create a temporary file and use it for the shared purpose. The play below

- hosts: test_jails
 gather_facts: true
 tasks:
 - name: Create tempfile
 tempfile:
 state: file
 register: fcounter
 run_once: true
 delegate_to: localhost
 - name: Write hostname to the tempfile
 shell: "echo ansible_hostname >> fcounter.path "
 delegate_to: localhost

 # < --------- HERE COMES THE PLAY --------- >

 - name: Print number of hosts
 shell: "cat fcounter.path | wc -l"
 register: counter
 run_once: true
 delegate_to: localhost
 - debug:
 var: counter.stdout
 run_once: true

gives:

ok: [test_01] => 
"counter.stdout": "3"

PLAY RECAP ****************************************************************
test_01 : ok=5 changed=3 unreachable=0 failed=0 
test_02 : ok=2 changed=1 unreachable=0 failed=0 
test_03 : ok=2 changed=1 unreachable=0 failed=0

share|improve this answer

answered Mar 27 at 0:15

Vladimir BotkaVladimir Botka

6,35822 gold badges66 silver badges1919 bronze badges

- hosts: test_jails
 gather_facts: true
 tasks:
 - name: Create tempfile
 tempfile:
 state: file
 register: fcounter
 run_once: true
 delegate_to: localhost
 - name: Write hostname to the tempfile
 shell: "echo ansible_hostname >> fcounter.path "
 delegate_to: localhost

 # < --------- HERE COMES THE PLAY --------- >

 - name: Print number of hosts
 shell: "cat fcounter.path | wc -l"
 register: counter
 run_once: true
 delegate_to: localhost
 - debug:
 var: counter.stdout
 run_once: true

ok: [test_01] => 
"counter.stdout": "3"

PLAY RECAP ****************************************************************
test_01 : ok=5 changed=3 unreachable=0 failed=0 
test_02 : ok=2 changed=1 unreachable=0 failed=0 
test_03 : ok=2 changed=1 unreachable=0 failed=0

share|improve this answer

answered Mar 27 at 0:15

Vladimir BotkaVladimir Botka

6,35822 gold badges66 silver badges1919 bronze badges

answered Mar 27 at 0:15

Vladimir BotkaVladimir Botka

6,35822 gold badges66 silver badges1919 bronze badges

answered Mar 27 at 0:15

Vladimir BotkaVladimir Botka

6,35822 gold badges66 silver badges1919 bronze badges

0

If I get your exact need, you can get the result without using shell. Please note that using json_query in my example below requires pip install jmespath. If this is not possible, you can most probably achieve the same result using the map filter combining 'extract' and 'attribute='.

- name: Check file exists on server
 stat:
 path: /tmp/a.txt
 register: a_file
 when: whatever_condition

- name: Count number of matches
 debug:
 msg: >-
 map('ternary', 1, 0)
 
 delegate_to: localhost
 run_once: true

share|improve this answer

edited Mar 27 at 16:42

answered Mar 27 at 16:36

ZeitounatorZeitounator

2,43311 gold badge44 silver badges1919 bronze badges

add a comment | 

0

If I get your exact need, you can get the result without using shell. Please note that using json_query in my example below requires pip install jmespath. If this is not possible, you can most probably achieve the same result using the map filter combining 'extract' and 'attribute='.

- name: Check file exists on server
 stat:
 path: /tmp/a.txt
 register: a_file
 when: whatever_condition

- name: Count number of matches
 debug:
 msg: >-
 map('ternary', 1, 0)
 
 delegate_to: localhost
 run_once: true

share|improve this answer

edited Mar 27 at 16:42

answered Mar 27 at 16:36

ZeitounatorZeitounator

2,43311 gold badge44 silver badges1919 bronze badges

add a comment | 

If I get your exact need, you can get the result without using shell. Please note that using json_query in my example below requires pip install jmespath. If this is not possible, you can most probably achieve the same result using the map filter combining 'extract' and 'attribute='.

- name: Check file exists on server
 stat:
 path: /tmp/a.txt
 register: a_file
 when: whatever_condition

- name: Count number of matches
 debug:
 msg: >-
 map('ternary', 1, 0)
 
 delegate_to: localhost
 run_once: true

share|improve this answer

edited Mar 27 at 16:42

answered Mar 27 at 16:36

ZeitounatorZeitounator

2,43311 gold badge44 silver badges1919 bronze badges

- name: Check file exists on server
 stat:
 path: /tmp/a.txt
 register: a_file
 when: whatever_condition

- name: Count number of matches
 debug:
 msg: >-
 map('ternary', 1, 0)
 
 delegate_to: localhost
 run_once: true

share|improve this answer

edited Mar 27 at 16:42

answered Mar 27 at 16:36

ZeitounatorZeitounator

2,43311 gold badge44 silver badges1919 bronze badges

answered Mar 27 at 16:36

ZeitounatorZeitounator

2,43311 gold badge44 silver badges1919 bronze badges

answered Mar 27 at 16:36

ZeitounatorZeitounator

2,43311 gold badge44 silver badges1919 bronze badges