wait_for_elasticsearch.sh

wait_for_elasticsearch.sh

#!/usr/bin/env bash

# Credit: https://stackoverflow.com/a/59795634/1686364

host="localhost:9200"
response=""
attempt=0

until [ "$response" = "200" ]; do
  if [ $attempt -ge 25 ]; then
    echo "FAILED. Elasticsearch not responding after $attempt tries."
    exit 1
  fi
  echo "Contacting Elasticsearch on ${host}. Try number ${attempt}"
  response=$(curl --write-out %{http_code} --silent --output /dev/null "$host")

  sleep 1
  attempt=$[$attempt+1]
done