Created
August 5, 2020 14:57
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Metricbeat Template auto-load
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#!/bin/bash | |
set -euo pipefail | |
# This is a hack since Metricbeat doesn't support importing templates through LogStash, only a direct elastic connection | |
# This script checks to see if there is a newer version of Metricbeat avaliable, and if there is, runs it so the new template gets installed. | |
# This works around the issue I described here https://discuss.elastic.co/t/illegal-argument-exception-when-metricbeat-begins-new-index/243269 | |
# You should only run this script on the machine running elasticsearch | |
# ALWAYS run this BEFORE using a new version of metricbeat | |
# Requires Docker (or podman) and jq. Tweak as you may. | |
ORCHESTRATOR="docker" | |
PULL_STATUS="old" | |
IMAGE_NAME="elastic/metricbeat" | |
ELASTIC_PASSWORD="${ELASTIC_PASSWORD:-}" | |
METRICBEAT_EXTRAS="${METRICBEAT_EXTRAS:- -E output.elasticsearch.username='elastic' -E output.elasticsearch.password='$ELASTIC_PASSWORD'}" | |
IMAGE_VERSION="$(curl --silent 'https://hub.docker.com/v2/repositories/elastic/metricbeat/tags' | jq -r '(.results[]["name"])' | grep '7.*' | uniq | sort -r | head -n 1)" | |
IMAGE_NAME="$IMAGE_NAME:$IMAGE_VERSION" | |
which podman && ORCHESTRATOR="podman" # CentOS 8 uses podman, not docker | |
if [[ "$($ORCHESTRATOR images -q --filter=reference=$IMAGE_NAME | wc -l)" -le 0 ]]; then | |
PULL_STATUS="new" | |
fi | |
if [[ "$PULL_STATUS" != "old" ]]; then | |
echo "Docker image appears to be new, updating template" | |
$ORCHESTRATOR pull "$IMAGE_NAME" | |
echo "Starting metricbeat index setup" | |
$ORCHESTRATOR run --rm --network host $IMAGE_NAME setup --index-management -E output.logstash.enabled=false -E 'output.elasticsearch.hosts=["localhost:9200"]' $METRICBEAT_EXTRAS | |
else | |
echo "Docker image appears to be up-to-date, nothing to do" | |
fi |
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