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249
ansible/automation/playbooks/container_logs.yml
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249
ansible/automation/playbooks/container_logs.yml
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---
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# Container Logs Collection Playbook
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# Collect logs from multiple containers for troubleshooting
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# Usage: ansible-playbook playbooks/container_logs.yml -e "service_name=plex"
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# Usage: ansible-playbook playbooks/container_logs.yml -e "service_pattern=immich"
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# Usage: ansible-playbook playbooks/container_logs.yml -e "collect_all=true"
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- name: Collect Container Logs
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hosts: "{{ host_target | default('all') }}"
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gather_facts: yes
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vars:
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target_service_name: "{{ service_name | default('') }}"
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target_service_pattern: "{{ service_pattern | default('') }}"
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target_collect_all: "{{ collect_all | default(false) }}"
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target_log_lines: "{{ log_lines | default(100) }}"
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target_log_since: "{{ log_since | default('1h') }}"
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output_dir: "/tmp/container_logs/{{ ansible_date_time.date }}"
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target_include_timestamps: "{{ include_timestamps | default(true) }}"
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target_follow_logs: "{{ follow_logs | default(false) }}"
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tasks:
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- name: Validate input parameters
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fail:
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msg: "Specify either service_name, service_pattern, or collect_all=true"
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when:
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- target_service_name == ""
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- target_service_pattern == ""
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- not (target_collect_all | bool)
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- name: Check if Docker is running
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systemd:
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name: docker
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register: docker_status
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failed_when: docker_status.status.ActiveState != "active"
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- name: Create local log directory
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file:
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path: "{{ output_dir }}/{{ inventory_hostname }}"
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state: directory
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mode: '0755'
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delegate_to: localhost
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- name: Create remote log directory
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file:
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path: "{{ output_dir }}/{{ inventory_hostname }}"
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state: directory
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mode: '0755'
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- name: Get specific service container
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shell: 'docker ps -a --filter "name={{ target_service_name }}" --format "{%raw%}{{.Names}}{%endraw%}"'
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register: specific_container
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when: target_service_name != ""
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changed_when: false
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- name: Get containers matching pattern
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shell: 'docker ps -a --filter "name={{ target_service_pattern }}" --format "{%raw%}{{.Names}}{%endraw%}"'
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register: pattern_containers
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when: target_service_pattern != ""
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changed_when: false
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- name: Get all containers
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shell: 'docker ps -a --format "{%raw%}{{.Names}}{%endraw%}"'
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register: all_containers
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when: target_collect_all | bool
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changed_when: false
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- name: Combine container lists
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set_fact:
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target_containers: >-
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{{
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(specific_container.stdout_lines | default([])) +
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(pattern_containers.stdout_lines | default([])) +
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(all_containers.stdout_lines | default([]) if target_collect_all | bool else [])
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}}
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- name: Display target containers
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debug:
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msg: |
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📦 CONTAINER LOG COLLECTION
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===========================
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🖥️ Host: {{ inventory_hostname }}
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📋 Target Containers: {{ target_containers | length }}
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{% for container in target_containers %}
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- {{ container }}
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{% endfor %}
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📏 Log Lines: {{ target_log_lines }}
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⏰ Since: {{ target_log_since }}
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- name: Fail if no containers found
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fail:
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msg: "No containers found matching the criteria"
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when: target_containers | length == 0
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- name: Get container information
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shell: |
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docker inspect {{ item }} --format='
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Container: {{ item }}
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Image: {%raw%}{{.Config.Image}}{%endraw%}
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Status: {%raw%}{{.State.Status}}{%endraw%}
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Started: {%raw%}{{.State.StartedAt}}{%endraw%}
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Restart Count: {%raw%}{{.RestartCount}}{%endraw%}
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Health: {%raw%}{{if .State.Health}}{{.State.Health.Status}}{{else}}No health check{{end}}{%endraw%}
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'
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register: container_info
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loop: "{{ target_containers }}"
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changed_when: false
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- name: Collect container logs
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shell: |
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echo "=== CONTAINER INFO ===" > {{ output_dir }}/{{ inventory_hostname }}/{{ item }}.log
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docker inspect {{ item }} --format='
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Container: {{ item }}
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Image: {%raw%}{{.Config.Image}}{%endraw%}
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Status: {%raw%}{{.State.Status}}{%endraw%}
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Started: {%raw%}{{.State.StartedAt}}{%endraw%}
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Restart Count: {%raw%}{{.RestartCount}}{%endraw%}
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Health: {%raw%}{{if .State.Health}}{{.State.Health.Status}}{{else}}No health check{{end}}{%endraw%}
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' >> {{ output_dir }}/{{ inventory_hostname }}/{{ item }}.log
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echo "" >> {{ output_dir }}/{{ inventory_hostname }}/{{ item }}.log
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echo "=== CONTAINER LOGS ===" >> {{ output_dir }}/{{ inventory_hostname }}/{{ item }}.log
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{% if target_include_timestamps | bool %}
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docker logs {{ item }} --since={{ target_log_since }} --tail={{ target_log_lines }} -t >> {{ output_dir }}/{{ inventory_hostname }}/{{ item }}.log 2>&1
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{% else %}
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docker logs {{ item }} --since={{ target_log_since }} --tail={{ target_log_lines }} >> {{ output_dir }}/{{ inventory_hostname }}/{{ item }}.log 2>&1
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{% endif %}
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loop: "{{ target_containers }}"
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ignore_errors: yes
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- name: Get container resource usage
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shell: 'docker stats {{ target_containers | join(" ") }} --no-stream --format "table {%raw%}{{.Container}}\t{{.CPUPerc}}\t{{.MemUsage}}\t{{.NetIO}}\t{{.BlockIO}}{%endraw%}"'
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register: container_stats
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when: target_containers | length > 0
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ignore_errors: yes
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- name: Save container stats
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copy:
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content: |
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Container Resource Usage - {{ ansible_date_time.iso8601 }}
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Host: {{ inventory_hostname }}
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{{ container_stats.stdout }}
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dest: "{{ output_dir }}/{{ inventory_hostname }}/container_stats.txt"
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when: container_stats.stdout is defined
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- name: Check for error patterns in logs
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shell: |
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echo "=== ERROR ANALYSIS ===" > {{ output_dir }}/{{ inventory_hostname }}/error_summary.txt
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echo "Host: {{ inventory_hostname }}" >> {{ output_dir }}/{{ inventory_hostname }}/error_summary.txt
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echo "Timestamp: {{ ansible_date_time.iso8601 }}" >> {{ output_dir }}/{{ inventory_hostname }}/error_summary.txt
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echo "" >> {{ output_dir }}/{{ inventory_hostname }}/error_summary.txt
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for container in {{ target_containers | join(' ') }}; do
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echo "=== $container ===" >> {{ output_dir }}/{{ inventory_hostname }}/error_summary.txt
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# Count error patterns
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error_count=$(docker logs $container --since={{ target_log_since }} 2>&1 | grep -i -E "(error|exception|failed|fatal|panic)" | wc -l)
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warn_count=$(docker logs $container --since={{ target_log_since }} 2>&1 | grep -i -E "(warn|warning)" | wc -l)
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echo "Errors: $error_count" >> {{ output_dir }}/{{ inventory_hostname }}/error_summary.txt
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echo "Warnings: $warn_count" >> {{ output_dir }}/{{ inventory_hostname }}/error_summary.txt
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# Show recent errors
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if [ $error_count -gt 0 ]; then
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echo "Recent Errors:" >> {{ output_dir }}/{{ inventory_hostname }}/error_summary.txt
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docker logs $container --since={{ target_log_since }} 2>&1 | grep -i -E "(error|exception|failed|fatal|panic)" | tail -5 >> {{ output_dir }}/{{ inventory_hostname }}/error_summary.txt
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fi
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echo "" >> {{ output_dir }}/{{ inventory_hostname }}/error_summary.txt
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done
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when: target_containers | length > 0
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ignore_errors: yes
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- name: Create summary report
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copy:
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content: |
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📊 CONTAINER LOG COLLECTION SUMMARY
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===================================
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🖥️ Host: {{ inventory_hostname }}
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📅 Collection Time: {{ ansible_date_time.iso8601 }}
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📦 Containers Processed: {{ target_containers | length }}
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📏 Log Lines per Container: {{ target_log_lines }}
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⏰ Time Range: {{ target_log_since }}
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📋 CONTAINERS:
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{% for container in target_containers %}
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- {{ container }}
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{% endfor %}
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📁 LOG FILES LOCATION:
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{{ output_dir }}/{{ inventory_hostname }}/
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📄 FILES CREATED:
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{% for container in target_containers %}
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- {{ container }}.log
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{% endfor %}
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- container_stats.txt
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- error_summary.txt
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- collection_summary.txt (this file)
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🔍 QUICK ANALYSIS:
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Use these commands to analyze the logs:
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# View error summary
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cat {{ output_dir }}/{{ inventory_hostname }}/error_summary.txt
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# Search for specific patterns
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grep -i "error" {{ output_dir }}/{{ inventory_hostname }}/*.log
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# View container stats
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cat {{ output_dir }}/{{ inventory_hostname }}/container_stats.txt
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# Follow live logs (if needed)
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{% for container in target_containers[:3] %}
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docker logs -f {{ container }}
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{% endfor %}
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dest: "{{ output_dir }}/{{ inventory_hostname }}/collection_summary.txt"
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- name: Display collection results
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debug:
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msg: |
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✅ LOG COLLECTION COMPLETE
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==========================
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🖥️ Host: {{ inventory_hostname }}
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📦 Containers: {{ target_containers | length }}
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📁 Location: {{ output_dir }}/{{ inventory_hostname }}/
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📄 Files Created:
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{% for container in target_containers %}
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- {{ container }}.log
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{% endfor %}
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- container_stats.txt
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- error_summary.txt
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- collection_summary.txt
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🔍 Quick Commands:
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# View errors: cat {{ output_dir }}/{{ inventory_hostname }}/error_summary.txt
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# View stats: cat {{ output_dir }}/{{ inventory_hostname }}/container_stats.txt
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==========================
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- name: Archive logs (optional)
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archive:
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path: "{{ output_dir }}/{{ inventory_hostname }}"
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dest: "{{ output_dir }}/{{ inventory_hostname }}_logs_{{ ansible_date_time.epoch }}.tar.gz"
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remove: no
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when: archive_logs | default(false) | bool
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delegate_to: localhost
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