Elastic Search ELK

• https://github.com/deviantony/docker-elk - start in compose
• https://habr.com/ru/articles/671344/ - elk stack

curl 127.0.0.1:9200/_cluster/health?pretty
 
curl 127.0.0.1:9200/_cat/indices?v
 
#get  names of all indicies in red status
curl 127.0.0.1:9200/_cluster/health/?level=shards | jq -r '.indices  | to_entries | map(select(.value.status == "yellow")) | .[].key'
#get  jsons of all indicies in red status
curl 127.0.0.1:9200/_cluster/health/?level=shards | jq -r '.indices  | to_entries | map(select(.value.status == "yellow")) | .[].key'
 
# prepare cmd  for delete indicies in status yellow  for 2021 year 
curl 127.0.0.1:9200/_cluster/health/?level=shards | jq -r '.indices  | to_entries | map(select(.value.status == "yellow")) | map(select(.key | test("2021"))) | .[].key'   | sed 's/^/curl -XDELETE 127.0.0.1:9200\//'