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tomkukraltomkukral
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add prometheus and kubernetes talk
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‎2018-06-19/Prometheus_and_Kubernetes.pdf

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‎2018-06-19/demo/kad/deploy.yml

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apiVersion: extensions/v1beta1
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kind: Deployment
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metadata:
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name: kad
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: kad
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template:
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metadata:
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labels:
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app: kad
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spec:
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containers:
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- name: kad
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image: tomkukral/kad
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imagePullPolicy: Always
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ports:
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- containerPort: 5000

‎2018-06-19/demo/kad/svc.yml

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kind: Service
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apiVersion: v1
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metadata:
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name: kad
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annotations:
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prometheus.io/scrape: 'true'
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prometheus.io/probe: 'true'
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spec:
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type: LoadBalancer
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selector:
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app: kad
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ports:
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- protocol: TCP
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port: 80
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targetPort: 5000

‎2018-06-19/demo/prometheus/be-deploy.yml

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apiVersion: extensions/v1beta1
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kind: Deployment
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metadata:
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name: blackbox-exporter
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namespace: prometheus
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annotations:
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verion: 0.2
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spec:
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replicas: 1
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strategy:
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rollingUpdate:
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maxSurge: 0
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maxUnavailable: 1
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type: RollingUpdate
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selector:
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matchLabels:
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app: blackbox-exporter
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template:
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metadata:
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name: blackbox-exporter
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labels:
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app: blackbox-exporter
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spec:
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containers:
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- name: blackbox-exporter
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image: prom/blackbox-exporter
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ports:
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- containerPort: 9115

‎2018-06-19/demo/prometheus/be-svc.yml

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kind: Service
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apiVersion: v1
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metadata:
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name: blackbox-exporter
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namespace: prometheus
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spec:
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selector:
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app: blackbox-exporter
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ports:
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- protocol: TCP
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port: 9115

‎2018-06-19/demo/prometheus/configmap.yml

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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: prometheus-configmap
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namespace: prometheus
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data:
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prometheus.yml: |-
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rule_files:
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- "/etc/prometheus/*.rules"
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global:
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scrape_interval: 10s
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scrape_configs:
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- job_name: 'kubernetes-apiservers'
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scheme: https
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kubernetes_sd_configs:
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- role: endpoints
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tls_config:
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ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
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bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
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relabel_configs:
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- source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
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action: keep
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regex: default;kubernetes;https
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- job_name: 'kubernetes-kubelets'
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scheme: http
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kubernetes_sd_configs:
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- role: node
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relabel_configs:
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- action: labelmap
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regex: __meta_kubernetes_node_label_(.+)
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- source_labels: [__address__]
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regex: '(.*):10250'
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replacement: '${1}:10255'
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target_label: __address__
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- job_name: 'kubernetes-node-exporter'
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scheme: http
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kubernetes_sd_configs:
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- role: node
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relabel_configs:
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- action: labelmap
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regex: __meta_kubernetes_node_label_(.+)
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- source_labels: [__meta_kubernetes_role]
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action: replace
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target_label: kubernetes_role
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- source_labels: [__address__]
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regex: '(.*):10250'
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replacement: '${1}:9100'
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target_label: __address__
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- source_labels: [__meta_kubernetes_node_label_kubernetes_io_hostname]
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regex: '(.*)'
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replacement: '${1}:9100'
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target_label: instance
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# set "name" value to "job"
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- source_labels: [job]
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regex: 'kubernetes-(.*)'
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replacement: '${1}'
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target_label: name
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- job_name: 'kubernetes-services'
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kubernetes_sd_configs:
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- role: endpoints
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relabel_configs:
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- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scrape]
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action: keep
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regex: true
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- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scheme]
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action: replace
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target_label: __scheme__
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regex: (https?)
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- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_path]
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action: replace
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target_label: __metrics_path__
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regex: (.+)
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- source_labels: [__address__, __meta_kubernetes_service_annotation_prometheus_io_port]
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action: replace
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target_label: __address__
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regex: (.+)(?::\d+);(\d+)
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replacement: $1:$2
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- action: labelmap
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regex: __meta_kubernetes_service_label_(.+)
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- source_labels: [__meta_kubernetes_service_namespace]
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action: replace
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target_label: kubernetes_namespace
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- source_labels: [__meta_kubernetes_service_name]
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action: replace
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target_label: kubernetes_name
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- job_name: 'kubernetes-services-probe'
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params:
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module: [http_2xx]
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kubernetes_sd_configs:
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- role: service
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relabel_configs:
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- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_probe]
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action: keep
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regex: true
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- source_labels: [__address__]
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target_label: __param_target
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- target_label: __address__
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replacement: blackbox-exporter.prometheus.svc:9115
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- source_labels: [__param_target]
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target_label: instance
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- action: labelmap
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regex: __meta_kubernetes_service_label_(.+)
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- source_labels: [__meta_kubernetes_namespace]
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target_label: kubernetes_namespace
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- source_labels: [__meta_kubernetes_service_name]
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target_label: kubernetes_name

‎2018-06-19/demo/prometheus/deploy.yml

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apiVersion: extensions/v1beta1
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kind: Deployment
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metadata:
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name: prometheus
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namespace: prometheus
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annotations:
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verion: 0.2
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spec:
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replicas: 1
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strategy:
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rollingUpdate:
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maxSurge: 0
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maxUnavailable: 1
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type: RollingUpdate
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selector:
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matchLabels:
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app: prometheus
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template:
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metadata:
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name: prometheus
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labels:
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app: prometheus
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spec:
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serviceAccountName: prometheus
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initContainers:
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- name: chown
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image: busybox
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command: ["chown", "-R", "nobody", "/prometheus"]
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volumeMounts:
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- name: prometheus-data
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mountPath: /prometheus
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containers:
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- name: prometheus
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image: prom/prometheus
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args:
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- "--config.file=/etc/prometheus/prometheus.yml"
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- "--storage.tsdb.path=/prometheus"
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- "--web.console.libraries=/usr/share/prometheus/console_libraries"
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- "--web.console.templates=/usr/share/prometheus/consoles"
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ports:
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- name: web
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containerPort: 9090
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volumeMounts:
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- name: config-volume
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mountPath: /etc/prometheus
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- name: etcd-tls-client-certs
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mountPath: /etc/etcd/ssl
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readOnly: true
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- name: prometheus-data
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mountPath: /prometheus
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volumes:
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- name: config-volume
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configMap:
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name: prometheus-configmap
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- name: etcd-tls-client-certs
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hostPath:
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path: /etc/ssl/etcd/
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- name: prometheus-data
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persistentVolumeClaim:
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claimName: prometheus-data

‎2018-06-19/demo/prometheus/node-exporter-ds.yml

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apiVersion: extensions/v1beta1
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kind: DaemonSet
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metadata:
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name: node-exporter
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namespace: prometheus
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spec:
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template:
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metadata:
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labels:
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app: node-exporter
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name: node-exporter
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spec:
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hostNetwork: true
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hostPID: true
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containers:
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- image: prom/node-exporter
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name: node-exporter
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ports:
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- containerPort: 9100
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hostPort: 9100
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name: scrape
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volumeMounts:
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- name: root-disk
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mountPath: /root-disk
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readOnly: true
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volumes:
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- name: root-disk
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hostPath:
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path: /
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‎2018-06-19/demo/prometheus/pvc.yml

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---
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kind: PersistentVolumeClaim
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apiVersion: v1
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metadata:
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name: prometheus-data
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namespace: prometheus
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spec:
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accessModes:
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- ReadWriteOnce
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resources:
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requests:
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storage: 50Gi

‎2018-06-19/demo/prometheus/rbac.yml

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---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: prometheus
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namespace: prometheus
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---
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apiVersion: rbac.authorization.k8s.io/v1beta1
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kind: ClusterRole
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metadata:
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name: prometheus
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rules:
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- apiGroups: [""]
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resources:
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- nodes
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- services
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- endpoints
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- pods
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verbs: ["get", "list", "watch"]
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- apiGroups: [""]
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resources:
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- configmaps
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verbs: ["get"]
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- nonResourceURLs: ["/metrics"]
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verbs: ["get"]
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---
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apiVersion: rbac.authorization.k8s.io/v1beta1
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kind: ClusterRoleBinding
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metadata:
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name: prometheus
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: prometheus
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subjects:
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- kind: ServiceAccount
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name: prometheus
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namespace: prometheus

‎2018-06-19/demo/prometheus/svc.yml

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kind: Service
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apiVersion: v1
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metadata:
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name: prometheus
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namespace: prometheus
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annotations:
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prometheus.io/scrape: 'true'
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spec:
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selector:
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app: prometheus
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ports:
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- protocol: TCP
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port: 9090
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targetPort: 9090

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