Add unsuccessful metrics to docs metrics (kuskoman#313)

satk0 · Mar 13, 2024 · d3c67fe · d3c67fe
1 parent accfc10
commit d3c67fe
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Showing 2 changed files with 27 additions and 1 deletion.
diff --git a/docker-compose.yml b/docker-compose.yml
@@ -5,7 +5,7 @@ services:
     restart: unless-stopped
     volumes:
       - logstash-data:/usr/share/logstash/data
-      - ./.docker/logstash.conf:/usr/share/logstash/pipeline/logstash.conf:ro
+      - ./.docker/logstash.conf:/usr/share/logstash/pipeline/logstash.conf
       - ./.docker/logstash.yml:/usr/share/logstash/config/logstash.yml:ro
     depends_on:
       - elasticsearch

diff --git a/scripts/add_metrics_to_readme.sh b/scripts/add_metrics_to_readme.sh
@@ -9,6 +9,32 @@ function getMetrics() {
     done
 }
 
+function failureConfigChange() {
+	local logstashCID
+	logstashCID=$( docker ps -a | grep 'logstash-exporter-logstash-1' | awk '{print $1}' )
+	local logstashConf
+	logstashConf='/usr/share/logstash/pipeline/logstash.conf'
+	# "logstash pid should be always 1 AFAIK" ~ Kuskoman, 2024
+	local logstashPID
+	logstashPID=1
+
+	docker exec -it "$logstashCID" sh -c "echo 'Wrong Config' >> $logstashConf"
+
+	# reload logstash
+	docker exec -it "$logstashCID" sh -c "kill -1 $logstashPID"
+
+	# bring back previous config 
+	# walk around with 'cp' to avoid replacing config inside container
+	docker exec "$logstashCID" sh -c "sed '\$d' $logstashConf > /tmp/prev_logstash.conf" 
+	docker exec "$logstashCID" sh -c "cp /tmp/prev_logstash.conf $logstashConf"
+
+	# reload logstash
+	docker exec -it "$logstashCID" sh -c "kill -1 $logstashPID"
+
+}
+
+failureConfigChange
+
 FILE=README.md
 while IFS= read -r line; do LINES+=("$line"); done < $FILE