22 lines
708 B
YAML
22 lines
708 B
YAML
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---
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- name: Count Docker containers on all hosts
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hosts: all
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gather_facts: no
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tasks:
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- name: Count running Docker containers on each host
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shell: "docker ps -q | wc -l"
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register: container_count
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changed_when: false
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- name: Display count for each host
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debug:
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msg: "Host {{ inventory_hostname }} has {{ container_count.stdout }} running Docker containers"
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- name: Aggregate total count
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run_once: true
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delegate_to: localhost
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vars:
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container_counts: "{{ hostvars | map(attribute='container_count.stdout') | map('int') | list }}"
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debug:
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msg: "Total running Docker containers across all hosts: {{ container_counts | sum }}"
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