How can an ansible playbook be used to extract a CSV file from Elasticsearch?

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An ansible playbook can be used to extract a CSV file from Elasticsearch by following the below steps:

1. Install the Elasticsearch Python module on the control node by running the following command:

sudo pip install elasticsearch

1. Create a playbook file (e.g. extract-data.yml) with the following content:

---
- name: Extract data from Elasticsearch and save as CSV
  hosts: localhost
  gather_facts: false
  vars:
    es_host: <elasticsearch_host>
    es_port: <elasticsearch_port>
    es_index: <elasticsearch_index>
    es_query: <elasticsearch_query>
    csv_file: <csv_file_path>
  tasks:
    - name: Get query results from Elasticsearch
      elasticsearch_query:
        es_host: "{{ es_host }}"
        es_port: "{{ es_port }}"
        es_index: "{{ es_index }}"
        es_query: "{{ es_query }}"
      register: es_results

    - name: Save query results as CSV file
      copy:
        content: "{{ es_results.hits.hits | map(attribute='_source') | list | to_csv }}"
        dest: "{{ csv_file }}"
      vars:
        csv_headers: "header1,header2,header3" # Edit the headers as per your requirements
        csv_delimiter: "," # Change the delimiter as per your requirements
        csv_quotechar: '"' # Change the quote character as per your requirements

1. Update the variables in the playbook as per your requirements:

• es_host: The hostname or IP address of the Elasticsearch instance.
• es_port: The port number on which Elasticsearch is listening.
• es_index: The name of the Elasticsearch index containing the data to be extracted.
• es_query: The Elasticsearch query to retrieve the data.
• csv_file: The path where the CSV file should be saved.

1. Run the playbook using the following command:

ansible-playbook extract-data.yml

Upon completion, the csv_file variable will contain a CSV file with the data extracted from Elasticsearch.