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Update README.md: use 'mode: host' in Docker Swarm configuration

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Signed-off-by: Valentino Lauciani <vlauciani@gmail.com>
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Valentino Lauciani 2025-02-17 16:13:59 +01:00 committed by GitHub
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@ -68,6 +68,24 @@ services:
- '/:/host:ro,rslave'
```
For Docker compose for Docker Swarm, `network_mode` and `pid` are not supported. The `network_mode` option must be replaced with `mode: host` in the `ports` section.
```yaml
---
version: '3.8'
services:
node_exporter:
image: quay.io/prometheus/node-exporter:latest
. . .
ports:
- target: 9100
published: 9100
protocol: tcp
mode: host
. . .
```
On some systems, the `timex` collector requires an additional Docker flag,
`--cap-add=SYS_TIME`, in order to access the required syscalls.