Initialize Commands Index

[f-galland]

Description

This PR adds the .commands index and its associated template to the setup plugin's initialization logic, so that the index gets created and the template applied upon cluster initialization.

Issues Resolved

Resolves #122

[f-galland]

The index and its template get created on cluster startup:

fede@tyner:~/IdeaProjects/wazuh-indexer-plugins/plugins/command-manager (122-initialize-commands-index)
$ curl http://localhost:9200/_cat/indices/.commands
green open .commands wk1RXJRZQmqWCcu4AvcpfA 1 0 0 0 208b 208b

fede@tyner:~/IdeaProjects/wazuh-indexer-plugins/plugins/command-manager (122-initialize-commands-index)
$ curl http://localhost:9200/_cat/templates
index-template-alerts          [wazuh-alerts-5.x-*]                0  
index-template-vulnerabilities [wazuh-states-vulnerabilities*]     0  
index-template-commands        [.commands*]                        0  
index-template-system          [wazuh-states-inventory-system*]    0  
index-template-packages        [wazuh-states-inventory-packages*]  0  
index-template-agent           [.agents*]                          0  
index-template-fim             [wazuh-states-fim*]                 0  
index-template-processes       [wazuh-states-inventory-processes*] 0  

fede@tyner:~/IdeaProjects/wazuh-indexer-plugins/plugins/command-manager (122-initialize-commands-index)
$ curl http://localhost:9200/_template/index-template-commands?pretty
{
  "index-template-commands" : {
    "order" : 0,
    "index_patterns" : [
      ".commands*"
    ],
    "settings" : {
      "index" : {
        "refresh_interval" : "5s",
        "hidden" : "true",
        "number_of_shards" : "1",
        "number_of_replicas" : "0",
        "query" : {
          "default_field" : [
            "command.source",
            "command.target.type",
            "command.status",
            "command.action.name"
          ]
        }
      }
    },
    "mappings" : {
      "dynamic" : "strict",
      "date_detection" : false,
      "properties" : {
        "agent" : {
          "properties" : {
            "groups" : {
              "ignore_above" : 1024,
              "type" : "keyword"
            }
          }
        },
        "command" : {
          "properties" : {
            "result" : {
              "properties" : {
                "code" : {
                  "type" : "short"
                },
                "data" : {
                  "ignore_above" : 1024,
                  "type" : "keyword"
                },
                "message" : {
                  "ignore_above" : 1024,
                  "type" : "keyword"
                }
              }
            },
            "action" : {
              "properties" : {
                "args" : {
                  "ignore_above" : 1024,
                  "type" : "keyword"
                },
                "name" : {
                  "ignore_above" : 1024,
                  "type" : "keyword"
                },
                "version" : {
                  "ignore_above" : 1024,
                  "type" : "keyword"
                }
              }
            },
            "source" : {
              "ignore_above" : 1024,
              "type" : "keyword"
            },
            "order_id" : {
              "ignore_above" : 1024,
              "type" : "keyword"
            },
            "request_id" : {
              "ignore_above" : 1024,
              "type" : "keyword"
            },
            "user" : {
              "ignore_above" : 1024,
              "type" : "keyword"
            },
            "timeout" : {
              "type" : "short"
            },
            "status" : {
              "ignore_above" : 1024,
              "type" : "keyword"
            },
            "target" : {
              "properties" : {
                "id" : {
                  "ignore_above" : 1024,
                  "type" : "keyword"
                },
                "type" : {
                  "ignore_above" : 1024,
                  "type" : "keyword"
                }
              }
            }
          }
        }
      }
    },
    "aliases" : { }
  }
}