68 lines
1.7 KiB
Bash
Executable File
68 lines
1.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -eu
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set -o pipefail
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source "$(dirname ${BASH_SOURCE[0]})/lib/testing.sh"
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cid_es="$(container_id elasticsearch)"
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cid_ls="$(container_id logstash)"
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cid_lsp="$(container_id logspout)"
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ip_es="$(service_ip elasticsearch)"
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ip_ls="$(service_ip logstash)"
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ip_lsp="$(service_ip logspout)"
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log 'Waiting for readiness of Elasticsearch'
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poll_ready "$cid_es" "http://${ip_es}:9200/" -u 'elastic:testpasswd'
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log 'Waiting for readiness of Logstash'
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poll_ready "$cid_ls" "http://${ip_ls}:9600/_node/pipelines/main?pretty"
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log 'Waiting for readiness of Logspout'
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poll_ready "$cid_lsp" "http://${ip_lsp}/health"
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# When Logspout starts, it prints the following log line:
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# 2021/01/07 16:14:52 # logspout v3.2.13-custom by gliderlabs
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#
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# which we expect to find by querying:
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# docker.image:"docker-elk_logspout" AND message:"logspout gliderlabs"~3
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#
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log 'Searching a log entry forwarded by Logspout'
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declare response
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declare -i count
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declare -i was_retried=0
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# retry for max 60s (30*2s)
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for _ in $(seq 1 30); do
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response="$(curl "http://${ip_es}:9200/logstash-*/_search?q=docker.image:%22docker-elk_logspout%22%20AND%20message:%22logspout%20gliderlabs%22~3&pretty" -s -u elastic:testpasswd)"
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set +u # prevent "unbound variable" if assigned value is not an integer
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count="$(jq -rn --argjson data "${response}" '$data.hits.total.value')"
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set -u
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if (( count > 0 )); then
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break
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fi
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was_retried=1
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echo -n 'x' >&2
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sleep 2
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done
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if ((was_retried)); then
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# flush stderr, important in non-interactive environments (CI)
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echo >&2
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fi
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echo "$response"
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# Logspout may restart if Logstash isn't ready yet, so we tolerate multiple
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# results
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if (( count == 0 )); then
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echo 'Expected at least 1 document'
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exit 1
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fi
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