Quick&dirty dashboard for Elasticsearch in kubernetes

dashboard-es.sh

#!/usr/bin/env bash
# dashboard-es
#
# Args:
#   $1: k8s namespace (default: read from $KUBECONFIG)
#
# You need some port redirection already established:
#
#   kubectl port-forward <pod-name> 9200

CONTEXT=$(kubectl config current-context)
DEFAULT_NS=$(kubectl config view -o json \
      | jq -r ".contexts | map(select(.name == \"${CONTEXT}\")) | .[].context.namespace")
NS="${1:-$DEFAULT_NS}"


title () {
  local BLUE NORMAL LENGHT

  BLUE='\033[0;34m'    # Blue
  NORMAL='\033[0m'     # Normal
  LENGHT=78

  echo -e ${BLUE}
  ( printf '%0.1s' '#'{1..80} ; echo " $* ##" ) | tail -c -${LENGHT}
  echo -en ${NORMAL}
}

title "Namespace: ${NS}"

title pods
kubectl -n ${NS} get deploy,sts -l component=elasticsearch

title nodes
curl -s 'localhost:9200/_cat/nodes?v&s=name'

title allocation
curl -s 'localhost:9200/_cat/allocation?v&s=node'

title health
curl -s localhost:9200/_cat/health?v