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Weave Net name consistencies resolved

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https://github.com/coreos/kube-prometheus/pull/425#pullrequestreview-368779890
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Alok Kumar Singh
2020-03-04 19:57:23 +05:30
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commit 7a85d7d8a6
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docs/weave-net-support.md
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# Setup WeaveNet CNI monitoring using kube-prometheus
[WeaveNet](https://kubernetes.io/docs/concepts/cluster-administration/networking/#weave-net-from-weaveworks) is a resilient and simple to use CNI for Kubernetes. A well monitored and observed CNI helps in troubleshooting Kubernetes networking problems. [WeaveNet](https://www.weave.works/docs/net/latest/concepts/how-it-works/) emits [prometheus metrics](https://www.weave.works/docs/net/latest/tasks/manage/metrics/) for monitoring WeaveNet. There are many ways to install WeaveNet in your cluster. One of them is using [kops](https://github.com/kubernetes/kops/blob/master/docs/networking.md).
# Setup Weave Net monitoring using kube-prometheus
[Weave Net](https://kubernetes.io/docs/concepts/cluster-administration/networking/#weave-net-from-weaveworks) is a resilient and simple to use CNI provider for Kubernetes. A well monitored and observed CNI provider helps in troubleshooting Kubernetes networking problems. [Weave Net](https://www.weave.works/docs/net/latest/concepts/how-it-works/) emits [prometheus metrics](https://www.weave.works/docs/net/latest/tasks/manage/metrics/) for monitoring Weave Net. There are many ways to install Weave Net in your cluster. One of them is using [kops](https://github.com/kubernetes/kops/blob/master/docs/networking.md).
Following this document, you can setup weave net CNI monitoring for your cluster using kube-prometheus.
Following this document, you can setup Weave Net monitoring for your cluster using kube-prometheus.
## Contents
Using kube-prometheus and kubectl you will be able install the following for monitoring weave-net in your cluster:
Using kube-prometheus and kubectl you will be able install the following for monitoring Weave Net in your cluster:
1. [Service for WeaveNet](https://gist.github.com/alok87/379c6234b582f555c141f6fddea9fbce) The service which the [service monitor](https://coreos.com/operators/prometheus/docs/latest/user-guides/cluster-monitoring.html) scraps.
2. [ServiceMonitor for WeaveNet](https://gist.github.com/alok87/e46a7f9a79ef6d1da6964a035be2cfb9) Service monitor to scraps the weavenet metrics and bring it to Prometheus.
3. [Prometheus Alerts for WeaveNet](https://stackoverflow.com/a/60447864) This will setup all the important weave net metrics you should be alerted on.
4. [Grafana Dashboard for WeaveNet](https://grafana.com/grafana/dashboards/11789) This will setup the per CNI pod level monitoring for weave net.
5. [Grafana Dashboard for WeaveNet(Cluster)](https://grafana.com/grafana/dashboards/11789) This will setup the cluster level monitoring for weave net.
1. [Service for Weave Net](https://gist.github.com/alok87/379c6234b582f555c141f6fddea9fbce) The service which the [service monitor](https://coreos.com/operators/prometheus/docs/latest/user-guides/cluster-monitoring.html) scrapes.
2. [ServiceMonitor for Weave Net](https://gist.github.com/alok87/e46a7f9a79ef6d1da6964a035be2cfb9) Service monitor to scrape the Weave Net metrics and bring it to Prometheus.
3. [Prometheus Alerts for Weave Net](https://stackoverflow.com/a/60447864) This will setup all the important Weave Net metrics you should be alerted on.
4. [Grafana Dashboard for Weave Net](https://grafana.com/grafana/dashboards/11789) This will setup the per Weave Net pod level monitoring for Weave Net.
5. [Grafana Dashboard for Weave Net(Cluster)](https://grafana.com/grafana/dashboards/11789) This will setup the cluster level monitoring for Weave Net.
## Instructions
- You can monitor weave-net CNI using an example like below. **Please note that some alert configurations are environment specific and may require modifications of alert thresholds**. For example: The FastDP flows have never gone below 1500 for us. But if this value is say 2000 for you then you can use an example like below to update the alert. The alerts which may require threshold modifications are `WeaveNetFastDPFlowsLow` and `WeaveNetIPAMUnreachable`.
- You can monitor Weave Net using an example like below. **Please note that some alert configurations are environment specific and may require modifications of alert thresholds**. For example: The FastDP flows have never gone below 15000 for us. But if this value is say 20000 for you then you can use an example like below to update the alert. The alerts which may require threshold modifications are `WeaveNetFastDPFlowsLow` and `WeaveNetIPAMUnreachable`.
[embedmd]:# (../examples/weavenet-example.jsonnet)
[embedmd]:# (../examples/weave-net-example.jsonnet)
```jsonnet
local kp = (import 'kube-prometheus/kube-prometheus.libsonnet') +
(import 'kube-prometheus/kube-prometheus-weavenet.libsonnet') + {
(import 'kube-prometheus/kube-prometheus-weave-net.libsonnet') + {
_config+:: {
namespace: 'monitoring',
},
@@ -30,7 +30,7 @@ local kp = (import 'kube-prometheus/kube-prometheus.libsonnet') +
rules: std.map(function(rule)
if rule.alert == "WeaveNetFastDPFlowsLow" then
rule {
expr: "sum(weave_flows) < 2000"
expr: "sum(weave_flows) < 20000"
}
else if rule.alert == "WeaveNetIPAMUnreachable" then
rule {