mirror of
https://github.com/Tecnativa/docker-socket-proxy
synced 2025-07-26 17:08:06 +00:00
917d26e175
This adds a minimalistic check to the Docker image that verifies that HAProxy is actually listening on port 2375, marking the image as unhealthy if the check fails. This, in turn, allows container orchestration tools to notify an administrator that something is wrong or even restart the container automatically. This utilizes the Busybox implementation of `netcat`, which is already included in the image itself, and thus has functionally zero impact on image size. The check interval is set for once every 60 seconds, which is reasonably normal for small services like this.
31 lines
557 B
Docker
31 lines
557 B
Docker
FROM haproxy:1.9-alpine
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EXPOSE 2375
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ENV ALLOW_RESTARTS=0 \
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AUTH=0 \
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BUILD=0 \
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COMMIT=0 \
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CONFIGS=0 \
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CONTAINERS=0 \
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DISTRIBUTION=0 \
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EVENTS=1 \
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EXEC=0 \
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IMAGES=0 \
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INFO=0 \
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LOG_LEVEL=info \
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NETWORKS=0 \
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NODES=0 \
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PING=1 \
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PLUGINS=0 \
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POST=0 \
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SECRETS=0 \
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SERVICES=0 \
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SESSION=0 \
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SWARM=0 \
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SYSTEM=0 \
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TASKS=0 \
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VERSION=1 \
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VOLUMES=0
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COPY haproxy.cfg /usr/local/etc/haproxy/haproxy.cfg
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HEALTHCHECK --interval=1m --timeout=10s CMD nc -z 127.0.0.1 2375 || exit 1
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