docker-elk/.github/workflows/scripts/run-tests-logspout.sh

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#!/usr/bin/env bash
set -eu
set -o pipefail
source "$(dirname ${BASH_SOURCE[0]})/lib/testing.sh"
cid_es="$(container_id elasticsearch)"
cid_ls="$(container_id logspout)"
ip_es="$(service_ip elasticsearch)"
ip_ls="$(service_ip logspout)"
log 'Waiting for readiness of Elasticsearch'
poll_ready "$cid_es" "http://${ip_es}:9200/" -u 'elastic:testpasswd'
log 'Waiting for readiness of Logspout'
poll_ready "$cid_ls" "http://${ip_ls}/health"
# When Logspout starts, it prints the following log line:
# 2021/01/07 16:14:52 # logspout v3.2.13-custom by gliderlabs
#
# which we expect to find by querying:
# docker.image:"docker-elk_logspout" AND message:"logspout gliderlabs"~3
#
log 'Searching a log entry forwarded by Logspout'
declare response
declare -i count
# retry for max 60s (30*2s)
for _ in $(seq 1 30); do
response="$(curl "http://${ip_es}:9200/_count?q=docker.image:%22docker-elk_logspout%22%20AND%20message:%22logspout%20gliderlabs%22~3&pretty" -s -u elastic:testpasswd)"
count="$(jq -rn --argjson data "${response}" '$data.count')"
if [[ $count -gt 0 ]]; then
break
fi
echo -n 'x' >&2
sleep 2
done
echo -e '\n' >&2
echo "$response"
# Logspout may restart if Logstash isn't ready yet, so we tolerate multiple
# results
if [[ $count -lt 1 ]]; then
echo "Expected at least 1 document, got ${count}"
exit 1
fi