437 lines
14 KiB
Jsonnet
437 lines
14 KiB
Jsonnet
local k3 = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
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local k = import 'ksonnet/ksonnet.beta.4/k.libsonnet';
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{
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_config+:: {
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namespace: 'default',
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versions+:: {
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prometheus: 'v2.11.0',
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},
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imageRepos+:: {
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prometheus: 'quay.io/prometheus/prometheus',
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},
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alertmanager+:: {
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name: 'main',
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},
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prometheus+:: {
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name: 'k8s',
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replicas: 2,
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rules: {},
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renderedRules: {},
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namespaces: ['default', 'kube-system', $._config.namespace],
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},
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},
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prometheus+:: {
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serviceAccount:
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local serviceAccount = k.core.v1.serviceAccount;
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serviceAccount.new('prometheus-' + $._config.prometheus.name) +
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serviceAccount.mixin.metadata.withNamespace($._config.namespace),
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service:
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local service = k.core.v1.service;
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local servicePort = k.core.v1.service.mixin.spec.portsType;
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local prometheusPort = servicePort.newNamed('web', 9090, 'web');
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service.new('prometheus-' + $._config.prometheus.name, { app: 'prometheus', prometheus: $._config.prometheus.name }, prometheusPort) +
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service.mixin.spec.withSessionAffinity('ClientIP') +
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service.mixin.metadata.withNamespace($._config.namespace) +
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service.mixin.metadata.withLabels({ prometheus: $._config.prometheus.name }),
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[if $._config.prometheus.rules != null && $._config.prometheus.rules != {} then 'rules']:
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{
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apiVersion: 'monitoring.coreos.com/v1',
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kind: 'PrometheusRule',
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metadata: {
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labels: {
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prometheus: $._config.prometheus.name,
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role: 'alert-rules',
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},
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name: 'prometheus-' + $._config.prometheus.name + '-rules',
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namespace: $._config.namespace,
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},
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spec: {
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groups: $._config.prometheus.rules.groups,
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},
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},
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roleBindingSpecificNamespaces:
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local roleBinding = k.rbac.v1.roleBinding;
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local newSpecificRoleBinding(namespace) =
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roleBinding.new() +
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roleBinding.mixin.metadata.withName('prometheus-' + $._config.prometheus.name) +
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roleBinding.mixin.metadata.withNamespace(namespace) +
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roleBinding.mixin.roleRef.withApiGroup('rbac.authorization.k8s.io') +
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roleBinding.mixin.roleRef.withName('prometheus-' + $._config.prometheus.name) +
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roleBinding.mixin.roleRef.mixinInstance({ kind: 'Role' }) +
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roleBinding.withSubjects([{ kind: 'ServiceAccount', name: 'prometheus-' + $._config.prometheus.name, namespace: $._config.namespace }]);
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local roleBindingList = k3.rbac.v1.roleBindingList;
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roleBindingList.new([newSpecificRoleBinding(x) for x in $._config.prometheus.namespaces]),
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clusterRole:
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local clusterRole = k.rbac.v1.clusterRole;
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local policyRule = clusterRole.rulesType;
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local nodeMetricsRule = policyRule.new() +
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policyRule.withApiGroups(['']) +
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policyRule.withResources(['nodes/metrics']) +
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policyRule.withVerbs(['get']);
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local metricsRule = policyRule.new() +
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policyRule.withNonResourceUrls('/metrics') +
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policyRule.withVerbs(['get']);
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local rules = [nodeMetricsRule, metricsRule];
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clusterRole.new() +
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clusterRole.mixin.metadata.withName('prometheus-' + $._config.prometheus.name) +
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clusterRole.withRules(rules),
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roleConfig:
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local role = k.rbac.v1.role;
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local policyRule = role.rulesType;
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local configmapRule = policyRule.new() +
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policyRule.withApiGroups(['']) +
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policyRule.withResources([
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'configmaps',
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]) +
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policyRule.withVerbs(['get']);
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role.new() +
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role.mixin.metadata.withName('prometheus-' + $._config.prometheus.name + '-config') +
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role.mixin.metadata.withNamespace($._config.namespace) +
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role.withRules(configmapRule),
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roleBindingConfig:
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local roleBinding = k.rbac.v1.roleBinding;
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roleBinding.new() +
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roleBinding.mixin.metadata.withName('prometheus-' + $._config.prometheus.name + '-config') +
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roleBinding.mixin.metadata.withNamespace($._config.namespace) +
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roleBinding.mixin.roleRef.withApiGroup('rbac.authorization.k8s.io') +
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roleBinding.mixin.roleRef.withName('prometheus-' + $._config.prometheus.name + '-config') +
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roleBinding.mixin.roleRef.mixinInstance({ kind: 'Role' }) +
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roleBinding.withSubjects([{ kind: 'ServiceAccount', name: 'prometheus-' + $._config.prometheus.name, namespace: $._config.namespace }]),
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clusterRoleBinding:
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local clusterRoleBinding = k.rbac.v1.clusterRoleBinding;
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clusterRoleBinding.new() +
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clusterRoleBinding.mixin.metadata.withName('prometheus-' + $._config.prometheus.name) +
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clusterRoleBinding.mixin.roleRef.withApiGroup('rbac.authorization.k8s.io') +
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clusterRoleBinding.mixin.roleRef.withName('prometheus-' + $._config.prometheus.name) +
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clusterRoleBinding.mixin.roleRef.mixinInstance({ kind: 'ClusterRole' }) +
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clusterRoleBinding.withSubjects([{ kind: 'ServiceAccount', name: 'prometheus-' + $._config.prometheus.name, namespace: $._config.namespace }]),
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roleSpecificNamespaces:
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local role = k.rbac.v1.role;
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local policyRule = role.rulesType;
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local coreRule = policyRule.new() +
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policyRule.withApiGroups(['']) +
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policyRule.withResources([
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'services',
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'endpoints',
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'pods',
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]) +
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policyRule.withVerbs(['get', 'list', 'watch']);
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local newSpecificRole(namespace) =
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role.new() +
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role.mixin.metadata.withName('prometheus-' + $._config.prometheus.name) +
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role.mixin.metadata.withNamespace(namespace) +
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role.withRules(coreRule);
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local roleList = k3.rbac.v1.roleList;
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roleList.new([newSpecificRole(x) for x in $._config.prometheus.namespaces]),
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prometheus:
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local statefulSet = k.apps.v1.statefulSet;
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local container = statefulSet.mixin.spec.template.spec.containersType;
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local resourceRequirements = container.mixin.resourcesType;
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local selector = statefulSet.mixin.spec.selectorType;
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local resources =
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resourceRequirements.new() +
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resourceRequirements.withRequests({ memory: '400Mi' });
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{
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apiVersion: 'monitoring.coreos.com/v1',
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kind: 'Prometheus',
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metadata: {
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name: $._config.prometheus.name,
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namespace: $._config.namespace,
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labels: {
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prometheus: $._config.prometheus.name,
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},
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},
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spec: {
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replicas: $._config.prometheus.replicas,
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version: $._config.versions.prometheus,
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baseImage: $._config.imageRepos.prometheus,
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serviceAccountName: 'prometheus-' + $._config.prometheus.name,
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serviceMonitorSelector: {},
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podMonitorSelector: {},
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serviceMonitorNamespaceSelector: {},
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nodeSelector: { 'kubernetes.io/os': 'linux' },
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ruleSelector: selector.withMatchLabels({
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role: 'alert-rules',
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prometheus: $._config.prometheus.name,
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}),
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resources: resources,
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alerting: {
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alertmanagers: [
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{
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namespace: $._config.namespace,
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name: 'alertmanager-' + $._config.alertmanager.name,
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port: 'web',
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},
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],
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},
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securityContext: {
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runAsUser: 1000,
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runAsNonRoot: true,
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fsGroup: 2000,
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},
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},
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},
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serviceMonitor:
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{
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apiVersion: 'monitoring.coreos.com/v1',
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kind: 'ServiceMonitor',
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metadata: {
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name: 'prometheus',
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namespace: $._config.namespace,
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labels: {
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'k8s-app': 'prometheus',
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},
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},
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spec: {
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selector: {
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matchLabels: {
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prometheus: $._config.prometheus.name,
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},
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},
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endpoints: [
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{
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port: 'web',
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interval: '30s',
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},
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],
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},
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},
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serviceMonitorKubeScheduler:
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{
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apiVersion: 'monitoring.coreos.com/v1',
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kind: 'ServiceMonitor',
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metadata: {
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name: 'kube-scheduler',
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namespace: $._config.namespace,
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labels: {
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'k8s-app': 'kube-scheduler',
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},
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},
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spec: {
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jobLabel: 'k8s-app',
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endpoints: [
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{
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port: 'http-metrics',
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interval: '30s',
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},
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],
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selector: {
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matchLabels: {
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'k8s-app': 'kube-scheduler',
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},
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},
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namespaceSelector: {
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matchNames: [
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'kube-system',
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],
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},
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},
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},
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serviceMonitorKubelet:
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{
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apiVersion: 'monitoring.coreos.com/v1',
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kind: 'ServiceMonitor',
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metadata: {
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name: 'kubelet',
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namespace: $._config.namespace,
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labels: {
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'k8s-app': 'kubelet',
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},
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},
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spec: {
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jobLabel: 'k8s-app',
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endpoints: [
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{
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port: 'https-metrics',
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scheme: 'https',
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interval: '30s',
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honorLabels: true,
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tlsConfig: {
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insecureSkipVerify: true,
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},
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bearerTokenFile: '/var/run/secrets/kubernetes.io/serviceaccount/token',
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},
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{
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port: 'https-metrics',
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scheme: 'https',
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path: '/metrics/cadvisor',
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interval: '30s',
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honorLabels: true,
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tlsConfig: {
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insecureSkipVerify: true,
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},
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bearerTokenFile: '/var/run/secrets/kubernetes.io/serviceaccount/token',
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metricRelabelings: [
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// Drop a bunch of metrics which are disabled but still sent, see
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// https://github.com/google/cadvisor/issues/1925.
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{
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sourceLabels: ['__name__'],
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regex: 'container_(network_tcp_usage_total|network_udp_usage_total|tasks_state|cpu_load_average_10s)',
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action: 'drop',
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},
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],
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},
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],
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selector: {
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matchLabels: {
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'k8s-app': 'kubelet',
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},
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},
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namespaceSelector: {
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matchNames: [
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'kube-system',
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],
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},
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},
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},
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serviceMonitorKubeControllerManager:
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{
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apiVersion: 'monitoring.coreos.com/v1',
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kind: 'ServiceMonitor',
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metadata: {
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name: 'kube-controller-manager',
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namespace: $._config.namespace,
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labels: {
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'k8s-app': 'kube-controller-manager',
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},
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},
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spec: {
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jobLabel: 'k8s-app',
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endpoints: [
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{
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port: 'http-metrics',
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interval: '30s',
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metricRelabelings: [
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{
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sourceLabels: ['__name__'],
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regex: 'etcd_(debugging|disk|request|server).*',
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action: 'drop',
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},
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],
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},
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],
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selector: {
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matchLabels: {
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'k8s-app': 'kube-controller-manager',
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},
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},
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namespaceSelector: {
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matchNames: [
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'kube-system',
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],
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},
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},
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},
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serviceMonitorApiserver:
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{
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apiVersion: 'monitoring.coreos.com/v1',
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kind: 'ServiceMonitor',
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metadata: {
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name: 'kube-apiserver',
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namespace: $._config.namespace,
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labels: {
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'k8s-app': 'apiserver',
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},
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},
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spec: {
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jobLabel: 'component',
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selector: {
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matchLabels: {
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component: 'apiserver',
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provider: 'kubernetes',
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},
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},
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namespaceSelector: {
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matchNames: [
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'default',
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],
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},
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endpoints: [
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{
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port: 'https',
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interval: '30s',
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scheme: 'https',
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tlsConfig: {
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caFile: '/var/run/secrets/kubernetes.io/serviceaccount/ca.crt',
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serverName: 'kubernetes',
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},
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bearerTokenFile: '/var/run/secrets/kubernetes.io/serviceaccount/token',
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metricRelabelings: [
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{
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sourceLabels: ['__name__'],
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regex: 'etcd_(debugging|disk|request|server).*',
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action: 'drop',
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},
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{
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sourceLabels: ['__name__'],
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regex: 'apiserver_admission_controller_admission_latencies_seconds_.*',
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action: 'drop',
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},
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{
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sourceLabels: ['__name__'],
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regex: 'apiserver_admission_step_admission_latencies_seconds_.*',
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action: 'drop',
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},
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],
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},
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],
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},
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},
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serviceMonitorCoreDNS:
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{
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apiVersion: 'monitoring.coreos.com/v1',
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kind: 'ServiceMonitor',
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metadata: {
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name: 'coredns',
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namespace: $._config.namespace,
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labels: {
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'k8s-app': 'coredns',
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},
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},
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spec: {
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jobLabel: 'k8s-app',
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selector: {
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matchLabels: {
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'k8s-app': 'kube-dns',
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},
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},
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namespaceSelector: {
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matchNames: [
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'kube-system',
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],
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},
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endpoints: [
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{
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port: 'metrics',
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interval: '15s',
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bearerTokenFile: '/var/run/secrets/kubernetes.io/serviceaccount/token',
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},
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],
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},
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},
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},
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}
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