在Debian上配置Filebeat的API密钥，可参考以下步骤：
wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -，echo "deb https://artifacts.elastic.co/packages/7.x/apt stable main" | sudo tee -a /etc/apt/sources.list.d/elastic-7.x.list，sudo apt-get update，sudo apt-get install -y filebeat。POST /_security/api_key，并指定名称和角色描述符，获取类似{"id":"id","name":"name","api_key":"api_key"}的返回值。/etc/filebeat/filebeat.yml文件，在output.elasticsearch部分添加api_key配置，格式为id:api_key，例如output.elasticsearch: hosts: ["localhost:9200"] api_key: TiNAGG4BaaMdaH1tRfuU:KnR6yE41RrSowb0kQ0HWoA。
