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[es] Added HEALTHCHECK

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This commit is contained in:
Geoff Bourne 2017-02-04 14:37:45 -06:00
parent 2125fa0855
commit 17420ed590
2 changed files with 18 additions and 0 deletions
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2
elasticsearch/Dockerfile
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@ -13,6 +13,8 @@ RUN cd /usr/share && \
EXPOSE 9200 9300
HEALTHCHECK --timeout=5s CMD wget -q -O - http://$HOSTNAME:9200/_cat/health
ENV ES_HOME=/usr/share/elasticsearch-$ES_VERSION \
DEFAULT_ES_USER=elasticsearch \
ES_JAVA_OPTS="-Xms1g -Xmx1g"

16
elasticsearch/README.md
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@ -72,6 +72,22 @@ tdvfilj370yn es_master replicated 1/1 es
As you can see, there is also a Kibana instance included and available at port 5601.
# Health Checks
This container declares a [HEALTHCHECK](https://docs.docker.com/engine/reference/builder/#/healthcheck) that queries the `_cat/health`
endpoint for a quick, one-line gauge of health every 30 seconds.
The current health of the container is shown in the `STATUS` column of `docker ps`, such as
Up 14 minutes (healthy)
You can also check the history of health checks from `inspect`, such as:
```
> docker inspect -f "{{json .State.Health}}" es
{"Status":"healthy","FailingStreak":0,"Log":[...
```
# Configuration Summary
## Ports