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replace netcat with socat for liveness probe/metrics #22

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replace netcat with socat for liveness probe/metrics #22

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2 changes: 1 addition & 1 deletion docker/Dockerfile
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ ARG GPG_KEY=C823E3E5B12AF29C67F81976F5CECB3CB5E9BD2D
ARG ZK_DIST=zookeeper-3.4.10
RUN set -x \
&& apt-get update \
&& apt-get install -y openjdk-8-jre-headless wget netcat-openbsd \
&& apt-get install -y openjdk-8-jre-headless wget socat \
&& wget -q "http://www.apache.org/dist/zookeeper/$ZK_DIST/$ZK_DIST.tar.gz" \
&& wget -q "http://www.apache.org/dist/zookeeper/$ZK_DIST/$ZK_DIST.tar.gz.asc" \
&& export GNUPGHOME="$(mktemp -d)" \
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2 changes: 1 addition & 1 deletion docker/scripts/zookeeper-metrics
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Expand Up @@ -13,4 +13,4 @@
# See the License for the specific language governing permissions and
# limitations under the License.

echo mntr | nc localhost $1 >& 1
echo mntr | socat STDIO TCP:localhost:$1 >& 1
4 changes: 2 additions & 2 deletions docker/scripts/zookeeper-ready
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Expand Up @@ -17,9 +17,9 @@
# is health. The $? variable will be set to 0 if server responds that it is
# healthy, or 1 if the server fails to respond.

OK=$(echo ruok | nc 127.0.0.1 $1)
OK=$(echo ruok | socat STDIO TCP:127.0.0.1:$1)
if [ "$OK" == "imok" ]; then
exit 0
else
exit 1
fi
fi