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Merge branch 'kube-prometheus_documentation' of https://github.com/jolson490/prometheus-operator into kube-prometheus_documentation

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Joshua Olson 2018-08-01 15:59:32 -05:00
commit a13064f19c
4 changed files with 84 additions and 91 deletions
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13
README.md
View File

@ -40,6 +40,7 @@ This stack is meant for cluster monitoring, so it is pre-configured to collect m
* [Troubleshooting](#troubleshooting)
* [Error retrieving kubelet metrics](#error-retrieving-kubelet-metrics)
* [kube-state-metrics resource usage](#kube-state-metrics-resource-usage)
* [Contributing](#contributing)
## Prerequisites
@ -396,3 +397,15 @@ config. They default to:
memoryPerNode: '30Mi',
}
```
## Contributing
All `.yaml` files in the `/manifests` folder are generated via
[Jsonnet](https://jsonnet.org/). Contributing changes will most likely include
the following process:
1. Make your changes in the respective `*.jsonnet` file.
2. Commit your changes (This is currently necessary due to our vendoring
process. This is likely to change in the future).
3. Generate dependent `*.yaml` files: `make generate-in-docker`.
4. Commit the generated changes.

28
docs/monitoring-other-namespaces.md Normal file
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@ -0,0 +1,28 @@
# Monitoring other Kubernetes Namespaces
This guide will help you monitor applications in other Namespaces. By default the RBAC rules are only enabled for the `Default` and `kube-system` Namespace during Install.
# Setup
You have to give the list of the Namespaces that you want to be able to monitor.
This is done in the variable `prometheus.roleSpecificNamespaces`. You usually set this in your `.jsonnet` file when building the manifests.
Example to create the needed `Role` and `Rolebindig` for the Namespace `foo` :
```
local kp = (import 'kube-prometheus/kube-prometheus.libsonnet') + {
_config+:: {
namespace: 'monitoring',
prometheus+:: {
namespaces: ["default", "kube-system","foo"],
},
},
};
{ ['00namespace-' + name]: kp.kubePrometheus[name] for name in std.objectFields(kp.kubePrometheus) } +
{ ['0prometheus-operator-' + name]: kp.prometheusOperator[name] for name in std.objectFields(kp.prometheusOperator) } +
{ ['node-exporter-' + name]: kp.nodeExporter[name] for name in std.objectFields(kp.nodeExporter) } +
{ ['kube-state-metrics-' + name]: kp.kubeStateMetrics[name] for name in std.objectFields(kp.kubeStateMetrics) } +
{ ['alertmanager-' + name]: kp.alertmanager[name] for name in std.objectFields(kp.alertmanager) } +
{ ['prometheus-' + name]: kp.prometheus[name] for name in std.objectFields(kp.prometheus) } +
{ ['grafana-' + name]: kp.grafana[name] for name in std.objectFields(kp.grafana) }
```

94
jsonnet/kube-prometheus/prometheus/prometheus.libsonnet
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@ -21,6 +21,7 @@ local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
replicas: 2,
rules: {},
renderedRules: {},
namespaces: ["default", "kube-system",$._config.namespace],
},
},
@ -55,16 +56,20 @@ local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
groups: $._config.prometheus.rules.groups,
},
},
roleBindingDefault:
roleBindingSpecificNamespaces:
local roleBinding = k.rbac.v1.roleBinding;
roleBinding.new() +
roleBinding.mixin.metadata.withName('prometheus-' + $._config.prometheus.name) +
roleBinding.mixin.metadata.withNamespace('default') +
roleBinding.mixin.roleRef.withApiGroup('rbac.authorization.k8s.io') +
roleBinding.mixin.roleRef.withName('prometheus-' + $._config.prometheus.name) +
roleBinding.mixin.roleRef.mixinInstance({ kind: 'Role' }) +
roleBinding.withSubjects([{ kind: 'ServiceAccount', name: 'prometheus-' + $._config.prometheus.name, namespace: $._config.namespace }]),
local newSpecificRoleBinding(namespace) =
roleBinding.new() +
roleBinding.mixin.metadata.withName('prometheus-' + $._config.prometheus.name) +
roleBinding.mixin.metadata.withNamespace(namespace) +
roleBinding.mixin.roleRef.withApiGroup('rbac.authorization.k8s.io') +
roleBinding.mixin.roleRef.withName('prometheus-' + $._config.prometheus.name) +
roleBinding.mixin.roleRef.mixinInstance({ kind: 'Role' }) +
roleBinding.withSubjects([{ kind: 'ServiceAccount', name: 'prometheus-' + $._config.prometheus.name, namespace: namespace }]);
local roleBindigList = k.rbac.v1.roleBindingList;
roleBindigList.new([newSpecificRoleBinding(x) for x in $._config.prometheus.namespaces]),
clusterRole:
local clusterRole = k.rbac.v1.clusterRole;
local policyRule = clusterRole.rulesType;
@ -108,16 +113,6 @@ local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
roleBinding.mixin.roleRef.withName('prometheus-' + $._config.prometheus.name + '-config') +
roleBinding.mixin.roleRef.mixinInstance({ kind: 'Role' }) +
roleBinding.withSubjects([{ kind: 'ServiceAccount', name: 'prometheus-' + $._config.prometheus.name, namespace: $._config.namespace }]),
roleBindingNamespace:
local roleBinding = k.rbac.v1.roleBinding;
roleBinding.new() +
roleBinding.mixin.metadata.withName('prometheus-' + $._config.prometheus.name) +
roleBinding.mixin.metadata.withNamespace($._config.namespace) +
roleBinding.mixin.roleRef.withApiGroup('rbac.authorization.k8s.io') +
roleBinding.mixin.roleRef.withName('prometheus-' + $._config.prometheus.name) +
roleBinding.mixin.roleRef.mixinInstance({ kind: 'Role' }) +
roleBinding.withSubjects([{ kind: 'ServiceAccount', name: 'prometheus-' + $._config.prometheus.name, namespace: $._config.namespace }]),
clusterRoleBinding:
local clusterRoleBinding = k.rbac.v1.clusterRoleBinding;
@ -127,10 +122,9 @@ local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
clusterRoleBinding.mixin.roleRef.withName('prometheus-' + $._config.prometheus.name) +
clusterRoleBinding.mixin.roleRef.mixinInstance({ kind: 'ClusterRole' }) +
clusterRoleBinding.withSubjects([{ kind: 'ServiceAccount', name: 'prometheus-' + $._config.prometheus.name, namespace: $._config.namespace }]),
roleKubeSystem:
roleSpecificNamespaces:
local role = k.rbac.v1.role;
local policyRule = role.rulesType;
local coreRule = policyRule.new() +
policyRule.withApiGroups(['']) +
policyRule.withResources([
@ -140,57 +134,15 @@ local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
'pods',
]) +
policyRule.withVerbs(['get', 'list', 'watch']);
role.new() +
role.mixin.metadata.withName('prometheus-' + $._config.prometheus.name) +
role.mixin.metadata.withNamespace('kube-system') +
role.withRules(coreRule),
roleDefault:
local role = k.rbac.v1.role;
local policyRule = role.rulesType;
local coreRule = policyRule.new() +
policyRule.withApiGroups(['']) +
policyRule.withResources([
'nodes',
'services',
'endpoints',
'pods',
]) +
policyRule.withVerbs(['get', 'list', 'watch']);
role.new() +
role.mixin.metadata.withName('prometheus-' + $._config.prometheus.name) +
role.mixin.metadata.withNamespace('default') +
role.withRules(coreRule),
roleBindingKubeSystem:
local roleBinding = k.rbac.v1.roleBinding;
roleBinding.new() +
roleBinding.mixin.metadata.withName('prometheus-' + $._config.prometheus.name) +
roleBinding.mixin.metadata.withNamespace('kube-system') +
roleBinding.mixin.roleRef.withApiGroup('rbac.authorization.k8s.io') +
roleBinding.mixin.roleRef.withName('prometheus-' + $._config.prometheus.name) +
roleBinding.mixin.roleRef.mixinInstance({ kind: 'Role' }) +
roleBinding.withSubjects([{ kind: 'ServiceAccount', name: 'prometheus-' + $._config.prometheus.name, namespace: $._config.namespace }]),
roleNamespace:
local role = k.rbac.v1.role;
local policyRule = role.rulesType;
local coreRule = policyRule.new() +
policyRule.withApiGroups(['']) +
policyRule.withResources([
'nodes',
'services',
'endpoints',
'pods',
]) +
policyRule.withVerbs(['get', 'list', 'watch']);
role.new() +
role.mixin.metadata.withName('prometheus-' + $._config.prometheus.name) +
role.mixin.metadata.withNamespace($._config.namespace) +
role.withRules(coreRule),
local newSpecificRole(namespace) =
role.new() +
role.mixin.metadata.withName('prometheus-' + $._config.prometheus.name) +
role.mixin.metadata.withNamespace(namespace) +
role.withRules(coreRule);
local roleList = k.rbac.v1.roleList;
roleList.new([newSpecificRole(x) for x in $._config.prometheus.namespaces]),
prometheus:
local container = k.core.v1.pod.mixin.spec.containersType;
local resourceRequirements = container.mixin.resourcesType;

40
manifests/grafana-dashboardDefinitions.yaml
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@ -4792,7 +4792,7 @@ items:
"steppedLine": false,
"targets": [
{
"expr": "100 - (avg by (cpu) (irate(node_cpu{job=\"node-exporter\", mode=\"idle\", instance=\"$instance\"}[5m])) * 100)\n",
"expr": "1 - (avg by (cpu) (irate(node_cpu{job=\"node-exporter\", mode=\"idle\", instance=\"$instance\"}[5m])))\n",
"format": "time_series",
"intervalFactor": 10,
"legendFormat": "{{cpu}}",
@ -4822,18 +4822,18 @@ items:
},
"yaxes": [
{
"format": "percent",
"format": "percentunit",
"label": null,
"logBase": 1,
"max": 100,
"max": 1,
"min": 0,
"show": true
},
{
"format": "percent",
"format": "percentunit",
"label": null,
"logBase": 1,
"max": 100,
"max": 1,
"min": 0,
"show": true
}
@ -4883,21 +4883,21 @@ items:
"steppedLine": false,
"targets": [
{
"expr": "node_load1{job=\"node-exporter\", instance=\"$instance\"} * 100",
"expr": "max(node_load1{job=\"node-exporter\", instance=\"$instance\"})",
"format": "time_series",
"intervalFactor": 2,
"legendFormat": "load 1m",
"refId": "A"
},
{
"expr": "node_load5{job=\"node-exporter\", instance=\"$instance\"} * 100",
"expr": "max(node_load5{job=\"node-exporter\", instance=\"$instance\"})",
"format": "time_series",
"intervalFactor": 2,
"legendFormat": "load 5m",
"refId": "B"
},
{
"expr": "node_load15{job=\"node-exporter\", instance=\"$instance\"} * 100",
"expr": "max(node_load15{job=\"node-exporter\", instance=\"$instance\"})",
"format": "time_series",
"intervalFactor": 2,
"legendFormat": "load 15m",
@ -4927,7 +4927,7 @@ items:
},
"yaxes": [
{
"format": "percent",
"format": "percentunit",
"label": null,
"logBase": 1,
"max": null,
@ -4935,7 +4935,7 @@ items:
"show": true
},
{
"format": "percent",
"format": "percentunit",
"label": null,
"logBase": 1,
"max": null,
@ -5002,28 +5002,28 @@ items:
"steppedLine": false,
"targets": [
{
"expr": "node_memory_MemTotal{job=\"node-exporter\", instance=\"$instance\"}\n- node_memory_MemFree{job=\"node-exporter\", instance=\"$instance\"}\n- node_memory_Buffers{job=\"node-exporter\", instance=\"$instance\"}\n- node_memory_Cached{job=\"node-exporter\", instance=\"$instance\"}\n",
"expr": "max(\n node_memory_MemTotal{job=\"node-exporter\", instance=\"$instance\"}\n - node_memory_MemFree{job=\"node-exporter\", instance=\"$instance\"}\n - node_memory_Buffers{job=\"node-exporter\", instance=\"$instance\"}\n - node_memory_Cached{job=\"node-exporter\", instance=\"$instance\"}\n)\n",
"format": "time_series",
"intervalFactor": 2,
"legendFormat": "memory used",
"refId": "A"
},
{
"expr": "node_memory_Buffers{job=\"node-exporter\", instance=\"$instance\"}",
"expr": "max(node_memory_Buffers{job=\"node-exporter\", instance=\"$instance\"})",
"format": "time_series",
"intervalFactor": 2,
"legendFormat": "memory buffers",
"refId": "B"
},
{
"expr": "node_memory_Cached{job=\"node-exporter\", instance=\"$instance\"}",
"expr": "max(node_memory_Cached{job=\"node-exporter\", instance=\"$instance\"})",
"format": "time_series",
"intervalFactor": 2,
"legendFormat": "memory cached",
"refId": "C"
},
{
"expr": "node_memory_MemFree{job=\"node-exporter\", instance=\"$instance\"}",
"expr": "max(node_memory_MemFree{job=\"node-exporter\", instance=\"$instance\"})",
"format": "time_series",
"intervalFactor": 2,
"legendFormat": "memory free",
@ -5131,7 +5131,7 @@ items:
"tableColumn": "",
"targets": [
{
"expr": "(\n node_memory_MemTotal{job=\"node-exporter\", instance=\"$instance\"}\n- node_memory_MemFree{job=\"node-exporter\", instance=\"$instance\"}\n- node_memory_Buffers{job=\"node-exporter\", instance=\"$instance\"}\n- node_memory_Cached{job=\"node-exporter\", instance=\"$instance\"}\n) * 100\n /\nnode_memory_MemTotal{job=\"node-exporter\", instance=\"$instance\"}\n",
"expr": "max(\n (\n (\n node_memory_MemTotal{job=\"node-exporter\", instance=\"$instance\"}\n - node_memory_MemFree{job=\"node-exporter\", instance=\"$instance\"}\n - node_memory_Buffers{job=\"node-exporter\", instance=\"$instance\"}\n - node_memory_Cached{job=\"node-exporter\", instance=\"$instance\"}\n )\n / node_memory_MemTotal{job=\"node-exporter\", instance=\"$instance\"}\n ) * 100)\n",
"format": "time_series",
"intervalFactor": 2,
"legendFormat": ""
@ -5215,21 +5215,21 @@ items:
"steppedLine": false,
"targets": [
{
"expr": "sum by (instance) (rate(node_disk_bytes_read{job=\"node-exporter\", instance=\"$instance\"}[2m]))",
"expr": "max(rate(node_disk_bytes_read{job=\"node-exporter\", instance=\"$instance\"}[2m]))",
"format": "time_series",
"intervalFactor": 2,
"legendFormat": "read",
"refId": "A"
},
{
"expr": "sum by (instance) (rate(node_disk_bytes_written{job=\"node-exporter\", instance=\"$instance\"}[2m]))",
"expr": "max(rate(node_disk_bytes_written{job=\"node-exporter\", instance=\"$instance\"}[2m]))",
"format": "time_series",
"intervalFactor": 2,
"legendFormat": "written",
"refId": "B"
},
{
"expr": "sum by (instance) (rate(node_disk_io_time_ms{job=\"node-exporter\", instance=\"$instance\"}[2m]))",
"expr": "max(rate(node_disk_io_time_ms{job=\"node-exporter\", instance=\"$instance\"}[2m]))",
"format": "time_series",
"intervalFactor": 2,
"legendFormat": "io time",
@ -5414,7 +5414,7 @@ items:
"steppedLine": false,
"targets": [
{
"expr": "rate(node_network_receive_bytes{job=\"node-exporter\", instance=\"$instance\", device!\u007e\"lo\"}[5m])",
"expr": "max(rate(node_network_receive_bytes{job=\"node-exporter\", instance=\"$instance\", device!\u007e\"lo\"}[5m]))",
"format": "time_series",
"intervalFactor": 2,
"legendFormat": "{{device}}",
@ -5505,7 +5505,7 @@ items:
"steppedLine": false,
"targets": [
{
"expr": "rate(node_network_transmit_bytes{job=\"node-exporter\", instance=\"$instance\", device!\u007e\"lo\"}[5m])",
"expr": "max(rate(node_network_transmit_bytes{job=\"node-exporter\", instance=\"$instance\", device!\u007e\"lo\"}[5m]))",
"format": "time_series",
"intervalFactor": 2,
"legendFormat": "{{device}}",