Frederic Branczyk
GitHub
@@ -1,13 +0,0 @@
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groups:
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- name: kube-controller-manager.rules
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rules:
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- alert: K8SControllerManagerDown
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expr: absent(up{job="kube-controller-manager"} == 1)
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for: 5m
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labels:
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severity: critical
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annotations:
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description: There is no running K8S controller manager. Deployments and replication
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controllers are not making progress.
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runbook: https://coreos.com/tectonic/docs/latest/troubleshooting/controller-recovery.html#recovering-a-controller-manager
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summary: Controller manager is down
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@@ -1,58 +0,0 @@
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groups:
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- name: kube-scheduler.rules
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rules:
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- record: cluster:scheduler_e2e_scheduling_latency_seconds:quantile
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expr: histogram_quantile(0.99, sum(scheduler_e2e_scheduling_latency_microseconds_bucket)
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BY (le, cluster)) / 1e+06
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labels:
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quantile: "0.99"
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- record: cluster:scheduler_e2e_scheduling_latency_seconds:quantile
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expr: histogram_quantile(0.9, sum(scheduler_e2e_scheduling_latency_microseconds_bucket)
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BY (le, cluster)) / 1e+06
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labels:
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quantile: "0.9"
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- record: cluster:scheduler_e2e_scheduling_latency_seconds:quantile
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expr: histogram_quantile(0.5, sum(scheduler_e2e_scheduling_latency_microseconds_bucket)
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BY (le, cluster)) / 1e+06
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labels:
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quantile: "0.5"
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- record: cluster:scheduler_scheduling_algorithm_latency_seconds:quantile
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expr: histogram_quantile(0.99, sum(scheduler_scheduling_algorithm_latency_microseconds_bucket)
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BY (le, cluster)) / 1e+06
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labels:
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quantile: "0.99"
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- record: cluster:scheduler_scheduling_algorithm_latency_seconds:quantile
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expr: histogram_quantile(0.9, sum(scheduler_scheduling_algorithm_latency_microseconds_bucket)
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BY (le, cluster)) / 1e+06
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labels:
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quantile: "0.9"
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- record: cluster:scheduler_scheduling_algorithm_latency_seconds:quantile
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expr: histogram_quantile(0.5, sum(scheduler_scheduling_algorithm_latency_microseconds_bucket)
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BY (le, cluster)) / 1e+06
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labels:
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quantile: "0.5"
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- record: cluster:scheduler_binding_latency_seconds:quantile
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expr: histogram_quantile(0.99, sum(scheduler_binding_latency_microseconds_bucket)
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BY (le, cluster)) / 1e+06
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labels:
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quantile: "0.99"
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- record: cluster:scheduler_binding_latency_seconds:quantile
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expr: histogram_quantile(0.9, sum(scheduler_binding_latency_microseconds_bucket)
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BY (le, cluster)) / 1e+06
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labels:
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quantile: "0.9"
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- record: cluster:scheduler_binding_latency_seconds:quantile
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expr: histogram_quantile(0.5, sum(scheduler_binding_latency_microseconds_bucket)
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BY (le, cluster)) / 1e+06
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labels:
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quantile: "0.5"
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- alert: K8SSchedulerDown
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expr: absent(up{job="kube-scheduler"} == 1)
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for: 5m
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labels:
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severity: critical
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annotations:
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description: There is no running K8S scheduler. New pods are not being assigned
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to nodes.
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runbook: https://coreos.com/tectonic/docs/latest/troubleshooting/controller-recovery.html#recovering-a-scheduler
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summary: Scheduler is down
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@@ -1,59 +0,0 @@
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groups:
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- name: kube-state-metrics.rules
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rules:
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- alert: DeploymentGenerationMismatch
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expr: kube_deployment_status_observed_generation != kube_deployment_metadata_generation
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for: 15m
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labels:
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severity: warning
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annotations:
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description: Observed deployment generation does not match expected one for
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deployment {{$labels.namespace}}/{{$labels.deployment}}
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summary: Deployment is outdated
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- alert: DeploymentReplicasNotUpdated
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expr: ((kube_deployment_status_replicas_updated != kube_deployment_spec_replicas)
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or (kube_deployment_status_replicas_available != kube_deployment_spec_replicas))
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unless (kube_deployment_spec_paused == 1)
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for: 15m
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labels:
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severity: warning
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annotations:
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description: Replicas are not updated and available for deployment {{$labels.namespace}}/{{$labels.deployment}}
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summary: Deployment replicas are outdated
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- alert: DaemonSetRolloutStuck
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expr: kube_daemonset_status_number_ready / kube_daemonset_status_desired_number_scheduled
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* 100 < 100
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for: 15m
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labels:
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severity: warning
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annotations:
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description: Only {{$value}}% of desired pods scheduled and ready for daemon
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set {{$labels.namespace}}/{{$labels.daemonset}}
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summary: DaemonSet is missing pods
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- alert: K8SDaemonSetsNotScheduled
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expr: kube_daemonset_status_desired_number_scheduled - kube_daemonset_status_current_number_scheduled
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> 0
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for: 10m
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labels:
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severity: warning
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annotations:
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description: A number of daemonsets are not scheduled.
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summary: Daemonsets are not scheduled correctly
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- alert: DaemonSetsMissScheduled
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expr: kube_daemonset_status_number_misscheduled > 0
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for: 10m
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labels:
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severity: warning
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annotations:
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description: A number of daemonsets are running where they are not supposed
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to run.
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summary: Daemonsets are not scheduled correctly
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- alert: PodFrequentlyRestarting
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expr: increase(kube_pod_container_status_restarts_total[1h]) > 5
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for: 10m
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labels:
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severity: warning
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annotations:
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description: Pod {{$labels.namespace}}/{{$labels.pod}} was restarted {{$value}}
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times within the last hour
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summary: Pod is restarting frequently
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@@ -1,48 +0,0 @@
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groups:
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- name: kubelet.rules
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rules:
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- alert: K8SNodeNotReady
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expr: kube_node_status_condition{condition="Ready",status="true"} == 0
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for: 1h
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labels:
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severity: warning
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annotations:
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description: The Kubelet on {{ $labels.node }} has not checked in with the API,
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or has set itself to NotReady, for more than an hour
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summary: Node status is NotReady
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- alert: K8SManyNodesNotReady
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expr: count(kube_node_status_condition{condition="Ready",status="true"} == 0)
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> 1 and (count(kube_node_status_condition{condition="Ready",status="true"} ==
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0) / count(kube_node_status_condition{condition="Ready",status="true"})) * 100 > 20
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for: 1m
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labels:
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severity: critical
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annotations:
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description: '{{ $value }}% of Kubernetes nodes are not ready'
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- alert: K8SKubeletDown
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expr: count(up{job="kubelet"} == 0) / count(up{job="kubelet"}) * 100 > 3
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for: 1h
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labels:
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severity: warning
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annotations:
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description: Prometheus failed to scrape {{ $value }}% of kubelets.
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summary: Prometheus failed to scrape
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- alert: K8SKubeletDown
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expr: (absent(up{job="kubelet"} == 1) or count(up{job="kubelet"} == 0) / count(up{job="kubelet"}))
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* 100 > 10
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for: 1h
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labels:
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severity: critical
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annotations:
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description: Prometheus failed to scrape {{ $value }}% of kubelets, or all Kubelets
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have disappeared from service discovery.
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summary: Many Kubelets cannot be scraped
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- alert: K8SKubeletTooManyPods
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expr: kubelet_running_pod_count > 100
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for: 10m
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labels:
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severity: warning
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annotations:
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description: Kubelet {{$labels.instance}} is running {{$value}} pods, close
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to the limit of 110
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summary: Kubelet is close to pod limit
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@@ -1,106 +0,0 @@
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groups:
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- name: kubernetes.rules
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rules:
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- record: pod_name:container_memory_usage_bytes:sum
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expr: sum(container_memory_usage_bytes{container_name!="POD",pod_name!=""}) BY
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(pod_name)
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- record: pod_name:container_spec_cpu_shares:sum
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expr: sum(container_spec_cpu_shares{container_name!="POD",pod_name!=""}) BY (pod_name)
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- record: pod_name:container_cpu_usage:sum
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expr: sum(rate(container_cpu_usage_seconds_total{container_name!="POD",pod_name!=""}[5m]))
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BY (pod_name)
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- record: pod_name:container_fs_usage_bytes:sum
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expr: sum(container_fs_usage_bytes{container_name!="POD",pod_name!=""}) BY (pod_name)
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- record: namespace:container_memory_usage_bytes:sum
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expr: sum(container_memory_usage_bytes{container_name!=""}) BY (namespace)
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- record: namespace:container_spec_cpu_shares:sum
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expr: sum(container_spec_cpu_shares{container_name!=""}) BY (namespace)
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- record: namespace:container_cpu_usage:sum
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expr: sum(rate(container_cpu_usage_seconds_total{container_name!="POD"}[5m]))
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BY (namespace)
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- record: cluster:memory_usage:ratio
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expr: sum(container_memory_usage_bytes{container_name!="POD",pod_name!=""}) BY
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(cluster) / sum(machine_memory_bytes) BY (cluster)
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- record: cluster:container_spec_cpu_shares:ratio
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expr: sum(container_spec_cpu_shares{container_name!="POD",pod_name!=""}) / 1000
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/ sum(machine_cpu_cores)
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- record: cluster:container_cpu_usage:ratio
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expr: sum(rate(container_cpu_usage_seconds_total{container_name!="POD",pod_name!=""}[5m]))
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/ sum(machine_cpu_cores)
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- record: apiserver_latency_seconds:quantile
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expr: histogram_quantile(0.99, rate(apiserver_request_latencies_bucket[5m])) /
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1e+06
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labels:
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quantile: "0.99"
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- record: apiserver_latency:quantile_seconds
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expr: histogram_quantile(0.9, rate(apiserver_request_latencies_bucket[5m])) /
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1e+06
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labels:
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quantile: "0.9"
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- record: apiserver_latency_seconds:quantile
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expr: histogram_quantile(0.5, rate(apiserver_request_latencies_bucket[5m])) /
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1e+06
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labels:
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quantile: "0.5"
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- alert: APIServerLatencyHigh
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expr: apiserver_latency_seconds:quantile{quantile="0.99",subresource!="log",verb!~"^(?:WATCH|WATCHLIST|PROXY|CONNECT)$"}
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> 1
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for: 10m
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labels:
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severity: warning
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annotations:
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description: the API server has a 99th percentile latency of {{ $value }} seconds
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for {{$labels.verb}} {{$labels.resource}}
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summary: API server high latency
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- alert: APIServerLatencyHigh
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expr: apiserver_latency_seconds:quantile{quantile="0.99",subresource!="log",verb!~"^(?:WATCH|WATCHLIST|PROXY|CONNECT)$"}
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> 4
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for: 10m
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labels:
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severity: critical
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annotations:
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description: the API server has a 99th percentile latency of {{ $value }} seconds
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for {{$labels.verb}} {{$labels.resource}}
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summary: API server high latency
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- alert: APIServerErrorsHigh
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expr: rate(apiserver_request_count{code=~"^(?:5..)$"}[5m]) / rate(apiserver_request_count[5m])
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* 100 > 2
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for: 10m
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labels:
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severity: warning
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annotations:
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description: API server returns errors for {{ $value }}% of requests
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summary: API server request errors
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- alert: APIServerErrorsHigh
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expr: rate(apiserver_request_count{code=~"^(?:5..)$"}[5m]) / rate(apiserver_request_count[5m])
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* 100 > 5
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for: 10m
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labels:
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severity: critical
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annotations:
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description: API server returns errors for {{ $value }}% of requests
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- alert: K8SApiserverDown
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expr: absent(up{job="apiserver"} == 1)
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for: 20m
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labels:
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severity: critical
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|
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annotations:
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||||||
description: No API servers are reachable or all have disappeared from service
|
|
||||||
discovery
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|
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summary: No API servers are reachable
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|
||||||
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|
||||||
- alert: K8sCertificateExpirationNotice
|
|
||||||
labels:
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|
||||||
severity: warning
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|
||||||
annotations:
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|
||||||
description: Kubernetes API Certificate is expiring soon (less than 7 days)
|
|
||||||
summary: Kubernetes API Certificate is expiering soon
|
|
||||||
expr: sum(apiserver_client_certificate_expiration_seconds_bucket{le="604800"}) > 0
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|
||||||
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|
||||||
- alert: K8sCertificateExpirationNotice
|
|
||||||
labels:
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|
||||||
severity: critical
|
|
||||||
annotations:
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|
||||||
description: Kubernetes API Certificate is expiring in less than 1 day
|
|
||||||
summary: Kubernetes API Certificate is expiering
|
|
||||||
expr: sum(apiserver_client_certificate_expiration_seconds_bucket{le="86400"}) > 0
|
|
||||||
@@ -1,51 +0,0 @@
|
|||||||
# Grafana Dashboards Configmap Generator
|
|
||||||
|
|
||||||
## Description:
|
|
||||||
Tool to maintain grafana dashboards' configmap for a grafana deployed with kube-prometheus (a tool inside prometheus-operator).
|
|
||||||
|
|
||||||
The tool reads the content of a directory with grafana .json resources (dashboards and datasources) and creates a manifest file under output/ directory with all the content from the files in a Kubernetes ConfigMap format.
|
|
||||||
|
|
||||||
Based on a configurable size limit, the tool will create 1 or N configmaps to allocate the .json resources (bin packing). If the limit is reached then the configmaps generated will have names like grafana-dashboards-0, grafana-dashboards-1, etc, and if the limit is not reached the configmap generated will be called "grafana-dashboards".
|
|
||||||
|
|
||||||
Input Parameters Allowed:
|
|
||||||
```bash
|
|
||||||
-i dir, --input-dir dir
|
|
||||||
Directory with grafana dashboards to process.
|
|
||||||
Important notes:
|
|
||||||
Files should be suffixed with -dashboard.json or -datasource.json.
|
|
||||||
We don't recommend file names with spaces.
|
|
||||||
|
|
||||||
-o file, --output-file file
|
|
||||||
Output file for config maps.
|
|
||||||
|
|
||||||
-s NUM, --size-limit NUM
|
|
||||||
Size limit in bytes for each dashboard (default: 240000)
|
|
||||||
|
|
||||||
-n namespace, --namespace namespace
|
|
||||||
Namespace for the configmap (default: monitoring).
|
|
||||||
|
|
||||||
-x, --apply-configmap
|
|
||||||
Applies the generated configmap with kubectl.
|
|
||||||
|
|
||||||
--apply-type
|
|
||||||
Type of kubectl command. Accepted values: apply, replace, create (default: apply).
|
|
||||||
```
|
|
||||||
|
|
||||||
## Usage
|
|
||||||
|
|
||||||
Just execute the .sh under bin/ directory. The output will be placed in the output/ directory.
|
|
||||||
|
|
||||||
Examples:
|
|
||||||
```bash
|
|
||||||
$ ./grafana_dashboards_generate.sh
|
|
||||||
$ bin/grafana_dashboards_generate.sh -o manifests/grafana/grafana-dashboards.yaml -i assets/grafana-dashboards
|
|
||||||
$ bin/grafana_dashboards_generate.sh -s 1000000 --apply-configmap --apply-type replace
|
|
||||||
|
|
||||||
# Note: the output file, if provided with -o, shouldn't exist.
|
|
||||||
```
|
|
||||||
|
|
||||||
## Configuration and options
|
|
||||||
|
|
||||||
* Put the json files you want to pack in the templates/grafana-dashboards/ directory
|
|
||||||
* Size limit default is 240000 bytes due to the annotations size limit in kubernetes of 256KB.
|
|
||||||
|
|
||||||
@@ -1,427 +0,0 @@
|
|||||||
#!/bin/bash
|
|
||||||
|
|
||||||
# exit immediately when a command fails
|
|
||||||
set -e
|
|
||||||
# only exit with zero if all commands of the pipeline exit successfully
|
|
||||||
set -o pipefail
|
|
||||||
# error on unset variables
|
|
||||||
set -u
|
|
||||||
|
|
||||||
# Author: eedugon
|
|
||||||
|
|
||||||
# Description: Tool to maintain grafana dashboards configmap for a grafana deployed
|
|
||||||
# with kube-prometheus (a tool inside prometheus-operator)
|
|
||||||
# The tool reads the content of a directory with grafana .json resources
|
|
||||||
# that need to be moved into a configmap.
|
|
||||||
# Based on a configurable size limit, the tool will create 1 or N configmaps
|
|
||||||
# to allocate the .json resources (bin packing)
|
|
||||||
|
|
||||||
# Update: 20170914
|
|
||||||
# The tool also generates a grafana deployment manifest (-g option)
|
|
||||||
|
|
||||||
# parameters
|
|
||||||
# -o, --output-file
|
|
||||||
# -g, --grafana-manifest-file
|
|
||||||
# -i, --input-dir
|
|
||||||
# -s, --size-limit
|
|
||||||
# -x, --apply-configmap : true or false (default = false)
|
|
||||||
# --apply-type : create, replace, apply (default = apply)
|
|
||||||
|
|
||||||
#
|
|
||||||
# Basic Functions
|
|
||||||
#
|
|
||||||
echoSyntax() {
|
|
||||||
echo "Usage: ${0} [options]"
|
|
||||||
echo "Options:"
|
|
||||||
echo -e "\t-i dir, --input-dir dir"
|
|
||||||
echo -e "\t\tDirectory with grafana dashboards to process."
|
|
||||||
echo -e "\t\tImportant notes:"
|
|
||||||
echo -e "\t\t\tFiles should be suffixed with -dashboard.json or -datasource.json."
|
|
||||||
echo -e "\t\t\tWe don't recommend file names with spaces."
|
|
||||||
echo
|
|
||||||
echo -e "\t-o file, --output-file file"
|
|
||||||
echo -e "\t\tOutput file for config maps."
|
|
||||||
echo
|
|
||||||
echo -e "\t-s NUM, --size-limit NUM"
|
|
||||||
echo -e "\t\tSize limit in bytes for each dashboard (default: 240000)"
|
|
||||||
echo
|
|
||||||
echo -e "\t-n namespace, --namespace namespace"
|
|
||||||
echo -e "\t\tNamespace for the configmap (default: monitoring)."
|
|
||||||
echo
|
|
||||||
echo -e "\t-x, --apply-configmap"
|
|
||||||
echo -e "\t\tApplies the generated configmap with kubectl."
|
|
||||||
echo
|
|
||||||
echo -e "\t--apply-type"
|
|
||||||
echo -e "\t\tType of kubectl command. Accepted values: apply, replace, create (default: apply)."
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
# # Apply changes --> environment allowed
|
|
||||||
# test -z "$APPLY_CONFIGMAP" && APPLY_CONFIGMAP="false"
|
|
||||||
# # Size limit --> environment set allowed
|
|
||||||
# test -z "$DATA_SIZE_LIMIT" && DATA_SIZE_LIMIT="240000" # in bytes
|
|
||||||
# # Changes type: in case of problems with k8s configmaps, try replace. Should be apply
|
|
||||||
# test -z "$APPLY_TYPE" && APPLY_TYPE="apply"
|
|
||||||
# # Input values verification
|
|
||||||
# echo "$DATA_SIZE_LIMIT" | grep -q "^[0-9]\+$" || { echo "ERROR: Incorrect value for DATA_SIZE_LIMIT: $DATA_SIZE_LIMIT. Number expected"; exit 1; }
|
|
||||||
|
|
||||||
# Base variables (do not change them)
|
|
||||||
DATE_EXEC="$(date "+%Y-%m-%d-%H%M%S")"
|
|
||||||
BIN_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
|
|
||||||
TOOL_HOME="$(dirname $BIN_DIR)"
|
|
||||||
SCRIPT_BASE=`basename $0 | sed "s/\.[Ss][Hh]//"`
|
|
||||||
CONFIGMAP_DASHBOARD_PREFIX="grafana-dashboard-definitions"
|
|
||||||
|
|
||||||
TEMPLATES_DIR="$TOOL_HOME/templates"
|
|
||||||
DASHBOARD_HEADER_FILE="$TEMPLATES_DIR/dashboard.header"
|
|
||||||
DASHBOARD_FOOT_FILE="$TEMPLATES_DIR/dashboard.foot"
|
|
||||||
CONFIGMAP_HEADER="$TEMPLATES_DIR/ConfigMap.header"
|
|
||||||
GRAFANA_DEPLOYMENT_TEMPLATE="$TEMPLATES_DIR/grafana-deployment-template.yaml"
|
|
||||||
GRAFANA_DASHBOARDS_TEMPLATE="$TEMPLATES_DIR/grafana-dashboards-template.yaml"
|
|
||||||
OUTPUT_BASE_DIR="$TOOL_HOME/output"
|
|
||||||
|
|
||||||
# Some default values
|
|
||||||
OUTPUT_FILE="$OUTPUT_BASE_DIR/grafana-dashboards-configMap-$DATE_EXEC.yaml"
|
|
||||||
GRAFANA_OUTPUT_FILE="$OUTPUT_BASE_DIR/grafana-deployment-$DATE_EXEC.yaml"
|
|
||||||
GRAFANA_DASHBOARD_OUTPUT_FILE="$OUTPUT_BASE_DIR/grafana-dashboards-$DATE_EXEC.yaml"
|
|
||||||
DASHBOARDS_DIR="$TEMPLATES_DIR/grafana-dashboards"
|
|
||||||
|
|
||||||
APPLY_CONFIGMAP="false"
|
|
||||||
APPLY_TYPE="apply"
|
|
||||||
DATA_SIZE_LIMIT="240000"
|
|
||||||
NAMESPACE="monitoring"
|
|
||||||
|
|
||||||
# Input parameters
|
|
||||||
while (( "$#" )); do
|
|
||||||
case "$1" in
|
|
||||||
"-o" | "--output-file")
|
|
||||||
OUTPUT_FILE="$2"
|
|
||||||
shift
|
|
||||||
;;
|
|
||||||
"-g" | "--grafana-output-file")
|
|
||||||
GRAFANA_OUTPUT_FILE="$2"
|
|
||||||
shift
|
|
||||||
;;
|
|
||||||
"-d" | "--grafana-dashboard-output-file")
|
|
||||||
GRAFANA_DASHBOARD_OUTPUT_FILE="$2"
|
|
||||||
shift
|
|
||||||
;;
|
|
||||||
"-i" | "--input-dir")
|
|
||||||
DASHBOARDS_DIR="$2"
|
|
||||||
shift
|
|
||||||
;;
|
|
||||||
"-n" | "--namespace")
|
|
||||||
NAMESPACE="$2"
|
|
||||||
shift
|
|
||||||
;;
|
|
||||||
"-x" | "--apply-configmap")
|
|
||||||
APPLY_CONFIGMAP="true"
|
|
||||||
;;
|
|
||||||
"--apply-type")
|
|
||||||
APPLY_TYPE="$2"
|
|
||||||
test "$APPLY_TYPE" != "create" && test "$APPLY_TYPE" != "apply" && test "$APPLY_TYPE" != "replace" && { echo "Unexpected APPLY_TYPE: $APPLY_TYPE"; exit 1; }
|
|
||||||
shift
|
|
||||||
;;
|
|
||||||
"-s"|"--size-limit")
|
|
||||||
if ! ( echo $2 | grep -q '^[0-9]\+$') || [ $2 -eq 0 ]; then
|
|
||||||
echo "Invalid value for size limit '$2'"
|
|
||||||
exit 1
|
|
||||||
fi
|
|
||||||
DATA_SIZE_LIMIT=$2
|
|
||||||
shift
|
|
||||||
;;
|
|
||||||
"-h"|"--help")
|
|
||||||
echoSyntax
|
|
||||||
exit 0
|
|
||||||
;;
|
|
||||||
*)
|
|
||||||
echo "Unknown argument: $1"
|
|
||||||
exit 1
|
|
||||||
;;
|
|
||||||
esac
|
|
||||||
shift
|
|
||||||
done
|
|
||||||
|
|
||||||
#
|
|
||||||
# Auxiliary Functions
|
|
||||||
#
|
|
||||||
indentMultiLineString() {
|
|
||||||
# Indent a given string (in one line including multiple \n)
|
|
||||||
test "$#" -eq 2 || { echo "INTERNAL ERROR: wrong call to function indentMultiLineString"; exit 1; }
|
|
||||||
local indent_number="$1"
|
|
||||||
local string="$2"
|
|
||||||
|
|
||||||
test "$indent_number" -ge 0 || { echo "INTERNAL ERROR: wrong indent number parameter: $indent_number"; exit 1; }
|
|
||||||
|
|
||||||
# prepare indentation text
|
|
||||||
local indent_string=""
|
|
||||||
for (( c=0; c<$indent_number; c++ )); do
|
|
||||||
indent_string="$indent_string "
|
|
||||||
done
|
|
||||||
|
|
||||||
echo "$string" | sed -e "s#^#$indent_string#" -e "s#\\\n#\\\n$indent_string#g"
|
|
||||||
}
|
|
||||||
|
|
||||||
#
|
|
||||||
# Main Functions
|
|
||||||
#
|
|
||||||
addConfigMapHeader() {
|
|
||||||
# If a parameter is provided it will be used as the configmap index.
|
|
||||||
# If no parameter is provided, the name will be kept
|
|
||||||
test "$#" -le 1 || { echo "# INTERNAL ERROR: Wrong call to function addConfigMapHeader"; return 1; }
|
|
||||||
test "$#" -eq 1 && local id="$1" || local id=""
|
|
||||||
|
|
||||||
if [ "$id" ]; then
|
|
||||||
cat "$CONFIGMAP_HEADER" | sed "s/name: $CONFIGMAP_DASHBOARD_PREFIX/name: $CONFIGMAP_DASHBOARD_PREFIX-$id/"
|
|
||||||
else
|
|
||||||
cat "$CONFIGMAP_HEADER"
|
|
||||||
fi
|
|
||||||
}
|
|
||||||
|
|
||||||
addArrayToConfigMap() {
|
|
||||||
# This function process the array to_process into a configmap
|
|
||||||
local file=""
|
|
||||||
local OLDIFS=$IFS
|
|
||||||
local IFS=$'\n'
|
|
||||||
for file in ${to_process[@]}; do
|
|
||||||
# check that file exists
|
|
||||||
test -f "$file" || { echo "# INTERNAL ERROR IN ARRAY: File not found: $file"; continue; }
|
|
||||||
|
|
||||||
# detection of type (dashboard or datasource)
|
|
||||||
type=""
|
|
||||||
basename "$file" | grep -q "\-datasource" && type="datasource"
|
|
||||||
basename "$file" | grep -q "\-dashboard" && type="dashboard"
|
|
||||||
test "$type" || { echo "# ERROR: Unrecognized file type: $(basename $file)"; return 1; }
|
|
||||||
|
|
||||||
#echo "# Processing $type $file"
|
|
||||||
# Indent 2
|
|
||||||
echo " $(basename $file): |+"
|
|
||||||
|
|
||||||
# Dashboard header: No indent needed
|
|
||||||
test "$type" = "dashboard" && cat $DASHBOARD_HEADER_FILE
|
|
||||||
|
|
||||||
# File content: Indent 4
|
|
||||||
cat $file | sed "s/^/ /"
|
|
||||||
|
|
||||||
# If source file was not ended properly we add newline character
|
|
||||||
[ "$(tail -c 1 "$file")" ] && echo
|
|
||||||
|
|
||||||
# Dashboard foot
|
|
||||||
test "$type" = "dashboard" && cat $DASHBOARD_FOOT_FILE
|
|
||||||
done
|
|
||||||
echo "---"
|
|
||||||
|
|
||||||
IFS=$OLDIFS
|
|
||||||
return 0
|
|
||||||
}
|
|
||||||
|
|
||||||
initialize-bin-pack() {
|
|
||||||
# We separate initialization to reuse the bin-pack for different sets of files.
|
|
||||||
n="0"
|
|
||||||
to_process=()
|
|
||||||
bytes_to_process="0"
|
|
||||||
total_files_processed="0"
|
|
||||||
total_configmaps_created="0"
|
|
||||||
}
|
|
||||||
|
|
||||||
bin-pack-files() {
|
|
||||||
# Algorithm:
|
|
||||||
# We process the files with no special order consideration
|
|
||||||
# We create an array/queue of "files to add to configmap" called "to_process"
|
|
||||||
# Size of the file is analyzed to determine if it can be added to the queue or not.
|
|
||||||
# the max size of the queue is limited by DATA_SIZE_LIMIT
|
|
||||||
# while there's room available in the queue we add files.
|
|
||||||
# when there's no room we create a configmap with the members of the queue
|
|
||||||
# before adding the file to a cleaned queue
|
|
||||||
|
|
||||||
# Counters initialization is not in the scope of this function
|
|
||||||
local file=""
|
|
||||||
OLDIFS=$IFS
|
|
||||||
IFS=$'\n'
|
|
||||||
# echo "DEBUG bin-pack:"
|
|
||||||
# echo "$@"
|
|
||||||
|
|
||||||
for file in $@; do
|
|
||||||
test -f "$file" || { echo "# INTERNAL ERROR: File not found: $file"; continue; }
|
|
||||||
# echo "debug: Processing file $(basename $file)"
|
|
||||||
|
|
||||||
file_size_bytes="$(stat -c%s "$file")" || true
|
|
||||||
|
|
||||||
# If the file is bigger than the configured limit we skip it file
|
|
||||||
if [ "$file_size_bytes" -gt "$DATA_SIZE_LIMIT" ]; then
|
|
||||||
echo "ERROR: File $(basename $file) bigger than size limit: $DATA_SIZE_LIMIT ($file_size_bytes). Skipping"
|
|
||||||
continue
|
|
||||||
fi
|
|
||||||
(( total_files_processed++ )) || true
|
|
||||||
|
|
||||||
if test "$(expr "$bytes_to_process" + "$file_size_bytes")" -le "$DATA_SIZE_LIMIT"; then
|
|
||||||
# We have room to include the file in the configmap
|
|
||||||
# test "$to_process" && to_process="$to_process $file" || to_process="$file"
|
|
||||||
to_process+=("$file")
|
|
||||||
(( bytes_to_process = bytes_to_process + file_size_bytes )) || true
|
|
||||||
echo "# File $(basename $file) : added to queue"
|
|
||||||
else
|
|
||||||
# There's no room to add this file to the queue. so we process what we have and add the file to the queue
|
|
||||||
if [ "$to_process" ]; then
|
|
||||||
echo
|
|
||||||
echo "# Size limit ($DATA_SIZE_LIMIT) reached. Processing queue with $bytes_to_process bytes. Creating configmap with id $n"
|
|
||||||
echo
|
|
||||||
# Create a new configmap
|
|
||||||
addConfigMapHeader $n >> $OUTPUT_FILE || { echo "ERROR in call to addConfigMapHeader function"; exit 1; }
|
|
||||||
addArrayToConfigMap >> $OUTPUT_FILE || { echo "ERROR in call to addArrayToConfigMap function"; exit 1; }
|
|
||||||
# Initialize variables with info about file not processed
|
|
||||||
(( total_configmaps_created++ )) || true
|
|
||||||
(( n++ )) || true
|
|
||||||
# to_process="$file"
|
|
||||||
to_process=()
|
|
||||||
to_process+=("$file")
|
|
||||||
bytes_to_process="$file_size_bytes"
|
|
||||||
echo "# File $(basename $file) : added to queue"
|
|
||||||
else
|
|
||||||
# based on the algorithm the queue should never be empty if we reach this part of the code
|
|
||||||
# if this happens maybe bytes_to_process was not aligned with the queue (to_process)
|
|
||||||
echo "ERROR (unexpected)"
|
|
||||||
fi
|
|
||||||
fi
|
|
||||||
done
|
|
||||||
IFS=$OLDIFS
|
|
||||||
}
|
|
||||||
|
|
||||||
# prepareGrafanaDeploymentManifest() {
|
|
||||||
# local num_configmaps="$1"
|
|
||||||
#
|
|
||||||
# for (( i=0; i<$total_configmaps_created; i++ )); do
|
|
||||||
# echo "Creating deployment for $CONFIGMAP_DASHBOARD_PREFIX-$i"
|
|
||||||
#
|
|
||||||
# done
|
|
||||||
# }
|
|
||||||
|
|
||||||
|
|
||||||
# Some variables checks...
|
|
||||||
test ! -d "$TEMPLATES_DIR" && { echo "ERROR: missing templates directory $TEMPLATES_DIR"; exit 1; }
|
|
||||||
|
|
||||||
test -f "$DASHBOARD_FOOT_FILE" || { echo "Template $DASHBOARD_FOOT_FILE not found"; exit 1; }
|
|
||||||
test -f "$DASHBOARD_HEADER_FILE" || { echo "Template $DASHBOARD_HEADER_FILE not found"; exit 1; }
|
|
||||||
test -f "$CONFIGMAP_HEADER" || { echo "Template $CONFIGMAP_HEADER not found"; exit 1; }
|
|
||||||
test -f "$GRAFANA_DEPLOYMENT_TEMPLATE" || { echo "Template $GRAFANA_DEPLOYMENT_TEMPLATE not found"; exit 1; }
|
|
||||||
test -f "$GRAFANA_DASHBOARDS_TEMPLATE" || { echo "Template $GRAFANA_DEPLOYMENT_TEMPLATE not found"; exit 1; }
|
|
||||||
|
|
||||||
test ! -d "$OUTPUT_BASE_DIR" && { echo "ERROR: missing directory $OUTPUT_BASE_DIR"; exit 1; }
|
|
||||||
|
|
||||||
# Initial checks
|
|
||||||
test -d "$DASHBOARDS_DIR" || { echo "ERROR: Dashboards directory not found: $DASHBOARDS_DIR"; echoSyntax; exit 1; }
|
|
||||||
|
|
||||||
test -f "$OUTPUT_FILE" && { echo "ERROR: Output file already exists: $OUTPUT_FILE"; exit 1; }
|
|
||||||
test -f "$GRAFANA_OUTPUT_FILE" && { echo "ERROR: Output file already exists: $GRAFANA_OUTPUT_FILE"; exit 1; }
|
|
||||||
test -f "$GRAFANA_DASHBOARD_OUTPUT_FILE" && { echo "ERROR: Output file already exists: $GRAFANA_DASHBOARD_OUTPUT_FILE"; exit 1; }
|
|
||||||
touch $OUTPUT_FILE || { echo "ERROR: Unable to create or modify $OUTPUT_FILE"; exit 1; }
|
|
||||||
touch $GRAFANA_OUTPUT_FILE || { echo "ERROR: Unable to create or modify $GRAFANA_OUTPUT_FILE"; exit 1; }
|
|
||||||
|
|
||||||
# Main code start
|
|
||||||
|
|
||||||
echo "# Starting execution of $SCRIPT_BASE on $DATE_EXEC"
|
|
||||||
echo "# Configured size limit: $DATA_SIZE_LIMIT bytes"
|
|
||||||
echo "# Grafana input dashboards and datasources will be read from: $DASHBOARDS_DIR"
|
|
||||||
echo "# Grafana Dashboards ConfigMap will be created into file:"
|
|
||||||
echo "$OUTPUT_FILE"
|
|
||||||
echo "# Grafana Deployment manifest will be created into file:"
|
|
||||||
echo "$GRAFANA_OUTPUT_FILE"
|
|
||||||
echo
|
|
||||||
|
|
||||||
# Loop variables initialization
|
|
||||||
initialize-bin-pack
|
|
||||||
|
|
||||||
# Process dashboards
|
|
||||||
bin-pack-files "$(find $DASHBOARDS_DIR -maxdepth 1 -type f -name "*-dashboard.json" | sort)"
|
|
||||||
|
|
||||||
# Continue processing datasources (maintaining the same queue)
|
|
||||||
#
|
|
||||||
# Commented out, as datasources are provisionable by Grafana by default in Grafana v5, but from a separate directory, meaning a separate ConfigMap for us.
|
|
||||||
#
|
|
||||||
# bin-pack-files "$(find $DASHBOARDS_DIR -maxdepth 1 -type f -name "*-datasource.json" | sort )"
|
|
||||||
|
|
||||||
# Processing remaining data in the queue (or unique)
|
|
||||||
if [ "$to_process" ]; then
|
|
||||||
if [ "$n" -eq 0 ]; then
|
|
||||||
echo
|
|
||||||
echo "# Size limit not reached ($bytes_to_process). Adding all files into basic configmap"
|
|
||||||
echo
|
|
||||||
addConfigMapHeader $n >> $OUTPUT_FILE || { echo "ERROR in call to addConfigMapHeader function"; exit 1; }
|
|
||||||
else
|
|
||||||
echo
|
|
||||||
echo "# Size limit not reached ($bytes_to_process). Adding remaining files into configmap with id $n"
|
|
||||||
echo
|
|
||||||
addConfigMapHeader $n >> $OUTPUT_FILE || { echo "ERROR in call to addConfigMapHeader function"; exit 1; }
|
|
||||||
fi
|
|
||||||
addArrayToConfigMap >> $OUTPUT_FILE || { echo "ERROR in call to addArrayToConfigMap function"; exit 1; }
|
|
||||||
(( total_configmaps_created++ )) || true
|
|
||||||
to_process=()
|
|
||||||
fi
|
|
||||||
|
|
||||||
echo "# Process completed, configmap created: $(basename $OUTPUT_FILE)"
|
|
||||||
echo "# Summary"
|
|
||||||
echo "# Total files processed: $total_files_processed"
|
|
||||||
echo "# Total amount of ConfigMaps inside the manifest: $total_configmaps_created"
|
|
||||||
echo
|
|
||||||
# Grafana deployment Processing (for every configmap)
|
|
||||||
#prepareGrafanaDeploymentManifest "$total_configmaps_created"
|
|
||||||
VOLUMES=""
|
|
||||||
VOLUME_MOUNTS=""
|
|
||||||
WATCH_DIR=""
|
|
||||||
for (( i=0; i<$total_configmaps_created; i++ )); do
|
|
||||||
configmap="$CONFIGMAP_DASHBOARD_PREFIX-$i"
|
|
||||||
echo "# Preparing grafana deployment to support configmap: $configmap"
|
|
||||||
|
|
||||||
test "$VOLUME_MOUNTS" && VOLUME_MOUNTS="$VOLUME_MOUNTS\n- name: $configmap\n mountPath: /grafana-dashboard-definitions/$i" || VOLUME_MOUNTS="- name: $configmap\n mountPath: /grafana-dashboard-definitions/$i"
|
|
||||||
test "$VOLUMES" && VOLUMES="$VOLUMES\n- name: $configmap\n configMap:\n name: $configmap" || VOLUMES="- name: $configmap\n configMap:\n name: $configmap"
|
|
||||||
test "$WATCH_DIR" && WATCH_DIR="$WATCH_DIR\n- '--watch-dir=/var/$configmap'" || WATCH_DIR="- '--watch-dir=/var/$configmap'"
|
|
||||||
# echo "DEBUG:"
|
|
||||||
# echo "VOLUMES: $VOLUMES"
|
|
||||||
# echo "VOLUME_MOUNTS: $VOLUME_MOUNTS"
|
|
||||||
# echo "WATCH_DIR: $WATCH_DIR"
|
|
||||||
echo
|
|
||||||
done
|
|
||||||
|
|
||||||
echo "# Processing grafana deployment template into $GRAFANA_OUTPUT_FILE"
|
|
||||||
sed -e "s#XXX_VOLUMES_XXX#$(indentMultiLineString 6 "$VOLUMES")#" \
|
|
||||||
-e "s#XXX_VOLUME_MOUNTS_XXX#$(indentMultiLineString 8 "$VOLUME_MOUNTS")#" \
|
|
||||||
-e "s#XXX_WATCH_DIR_XXX#$(indentMultiLineString 10 "$WATCH_DIR")#" \
|
|
||||||
$GRAFANA_DEPLOYMENT_TEMPLATE > $GRAFANA_OUTPUT_FILE
|
|
||||||
|
|
||||||
echo
|
|
||||||
echo "# Generating Grafana dashboard sources file for $total_configmaps_created directories"
|
|
||||||
DASHBOARD_SOURCES=""
|
|
||||||
for (( j=0; j<$total_configmaps_created; j++ )); do
|
|
||||||
echo "# Preparing grafana dashboards sources to support configmap: /grafana-dashboard-definitions/$j"
|
|
||||||
test "$DASHBOARD_SOURCES" && DASHBOARD_SOURCES="$DASHBOARD_SOURCES\n- name: '$j'\n org_id: 1\n folder: ''\n type: file\n options:\n folder: /grafana-dashboard-definitions/$j" || DASHBOARD_SOURCES="- name: '$j'\n org_id: 1\n folder: ''\n type: file\n options:\n folder: /grafana-dashboard-definitions/$j"
|
|
||||||
|
|
||||||
# echo "DEBUG:"
|
|
||||||
# echo "DASHBOARD_SOURCES: $DASHBOARD_SOURCES"
|
|
||||||
echo
|
|
||||||
done
|
|
||||||
|
|
||||||
echo "# Processing grafana dashboards template into $GRAFANA_DASHBOARD_OUTPUT_FILE"
|
|
||||||
sed -e "s#XXX_DASHBOARDS_XXX#$(indentMultiLineString 4 "$DASHBOARD_SOURCES")#" \
|
|
||||||
$GRAFANA_DASHBOARDS_TEMPLATE > $GRAFANA_DASHBOARD_OUTPUT_FILE
|
|
||||||
|
|
||||||
# If output file is empty we can delete it and exit
|
|
||||||
test ! -s "$OUTPUT_FILE" && { echo "# Configmap empty, deleting file"; rm $OUTPUT_FILE; exit 0; }
|
|
||||||
test ! -s "$GRAFANA_OUTPUT_FILE" && { echo "# Configmap empty, deleting file"; rm $GRAFANA_OUTPUT_FILE; exit 0; }
|
|
||||||
|
|
||||||
if [ "$APPLY_CONFIGMAP" = "true" ]; then
|
|
||||||
test -x "$(which kubectl)" || { echo "ERROR: kubectl command not available. Apply configmap not possible"; exit 1; }
|
|
||||||
echo "# Applying configuration with $APPLY_TYPE method on namespace $NAMESPACE"
|
|
||||||
if kubectl -n $NAMESPACE $APPLY_TYPE -f "$OUTPUT_FILE"; then
|
|
||||||
echo
|
|
||||||
echo "# ConfigMap updated. Updating grafana deployment"
|
|
||||||
kubectl -n $NAMESPACE $APPLY_TYPE -f "$GRAFANA_OUTPUT_FILE" || { echo "Error applying Grafana deployment. Check yaml file: $GRAFANA_OUTPUT_FILE"; exit 1; }
|
|
||||||
else
|
|
||||||
echo "Error applying Configmap. Check yaml file: $OUTPUT_FILE"
|
|
||||||
fi
|
|
||||||
else
|
|
||||||
echo
|
|
||||||
echo "# To apply the new configMap to your k8s system do something like:"
|
|
||||||
echo "kubectl -n monitoring $APPLY_TYPE -f $OUTPUT_FILE"
|
|
||||||
echo "kubectl -n monitoring $APPLY_TYPE -f $GRAFANA_OUTPUT_FILE"
|
|
||||||
echo
|
|
||||||
fi
|
|
||||||
@@ -1 +0,0 @@
|
|||||||
### This directory will include all generated manifests if no specific options are given
|
|
||||||
@@ -1,5 +0,0 @@
|
|||||||
apiVersion: v1
|
|
||||||
kind: ConfigMap
|
|
||||||
metadata:
|
|
||||||
name: grafana-dashboard-definitions
|
|
||||||
data:
|
|
||||||
@@ -1,7 +0,0 @@
|
|||||||
apiVersion: v1
|
|
||||||
kind: ConfigMap
|
|
||||||
metadata:
|
|
||||||
name: grafana-dashboards
|
|
||||||
data:
|
|
||||||
dashboards.yaml: |+
|
|
||||||
XXX_DASHBOARDS_XXX
|
|
||||||
@@ -1 +0,0 @@
|
|||||||
# Add your grafana dashboards into this directory
|
|
||||||
@@ -1,45 +0,0 @@
|
|||||||
apiVersion: apps/v1beta1
|
|
||||||
kind: Deployment
|
|
||||||
metadata:
|
|
||||||
name: grafana
|
|
||||||
spec:
|
|
||||||
replicas: 1
|
|
||||||
template:
|
|
||||||
metadata:
|
|
||||||
labels:
|
|
||||||
app: grafana
|
|
||||||
spec:
|
|
||||||
securityContext:
|
|
||||||
runAsNonRoot: true
|
|
||||||
runAsUser: 65534
|
|
||||||
containers:
|
|
||||||
- name: grafana
|
|
||||||
image: quay.io/coreos/monitoring-grafana:5.0.3
|
|
||||||
volumeMounts:
|
|
||||||
- name: grafana-storage
|
|
||||||
mountPath: /data
|
|
||||||
- name: grafana-datasources
|
|
||||||
mountPath: /grafana/conf/provisioning/datasources
|
|
||||||
- name: grafana-dashboards
|
|
||||||
mountPath: /grafana/conf/provisioning/dashboards
|
|
||||||
XXX_VOLUME_MOUNTS_XXX
|
|
||||||
ports:
|
|
||||||
- name: web
|
|
||||||
containerPort: 3000
|
|
||||||
resources:
|
|
||||||
requests:
|
|
||||||
memory: 100Mi
|
|
||||||
cpu: 100m
|
|
||||||
limits:
|
|
||||||
memory: 200Mi
|
|
||||||
cpu: 200m
|
|
||||||
volumes:
|
|
||||||
- name: grafana-storage
|
|
||||||
emptyDir: {}
|
|
||||||
- name: grafana-datasources
|
|
||||||
configMap:
|
|
||||||
name: grafana-datasources
|
|
||||||
- name: grafana-dashboards
|
|
||||||
configMap:
|
|
||||||
name: grafana-dashboards
|
|
||||||
XXX_VOLUMES_XXX
|
|
||||||
Reference in New Issue
Block a user