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configmap-rules.go
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configmap-rules.go
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/*
Copyright 2020 The Kubermatic Kubernetes Platform contributors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package prometheus
// prometheusRules contains the prerecoding and alerting rules for
// Prometheus. Be careful when changing alert names, as some of them
// are used for alert inhibitions and configured inside the
// seed-cluster's Alertmanager.
const prometheusRules = `
groups:
- name: kubermatic.goprocess
rules:
- record: job:process_resident_memory_bytes:clone
expr: process_resident_memory_bytes
labels:
kubermatic: federate
- record: job:process_cpu_seconds_total:rate5m
expr: rate(process_cpu_seconds_total[5m])
labels:
kubermatic: federate
- record: job:process_open_fds:clone
expr: process_open_fds
labels:
kubermatic: federate
- name: kubermatic.machine_controller
rules:
- record: job:machine_controller_errors_total:rate5m
expr: rate(machine_controller_errors_total[5m])
labels:
kubermatic: federate
- alert: KubernetesAdmissionWebhookHighRejectionRate
annotations:
message: '{{ $labels.operation }} requests for Machine objects are failing (Admission) with a high rate. Consider checking the affected objects'
expr: rate(apiserver_admission_webhook_admission_latencies_seconds_count{name="machine-controller.kubermatic.io-machines",rejected="true"}[5m]) > 0.01
for: 5m
labels:
severity: warning
- name: kubermatic.etcd
rules:
- record: job:etcd_server_has_leader:sum
expr: sum(etcd_server_has_leader)
labels:
kubermatic: federate
- record: job:etcd_disk_wal_fsync_duration_seconds_bucket:99percentile
expr: histogram_quantile(0.99, sum(rate(etcd_disk_wal_fsync_duration_seconds_bucket[5m])) by (instance, le))
labels:
kubermatic: federate
- record: job:etcd_disk_backend_commit_duration_seconds_bucket:99percentile
expr: histogram_quantile(0.99, sum(rate(etcd_disk_backend_commit_duration_seconds_bucket[5m])) by (instance, le))
labels:
kubermatic: federate
- record: job:etcd_debugging_mvcc_db_total_size_in_bytes:clone
expr: etcd_debugging_mvcc_db_total_size_in_bytes
labels:
kubermatic: federate
- record: job:etcd_network_client_grpc_received_bytes_total:rate5m
expr: rate(etcd_network_client_grpc_received_bytes_total[5m])
labels:
kubermatic: federate
- record: job:etcd_network_client_grpc_sent_bytes_total:rate5m
expr: rate(etcd_network_client_grpc_sent_bytes_total[5m])
labels:
kubermatic: federate
- record: job:etcd_network_peer_received_bytes_total:rate5msum
expr: sum(rate(etcd_network_peer_received_bytes_total[5m])) by (instance)
labels:
kubermatic: federate
- record: job:etcd_network_peer_sent_bytes_total:rate5msum
expr: sum(rate(etcd_network_peer_sent_bytes_total[5m])) by (instance)
labels:
kubermatic: federate
- record: job:etcd_server_proposals_failed_total:rate5msum
expr: sum(rate(etcd_server_proposals_failed_total[5m]))
labels:
kubermatic: federate
- record: job:etcd_server_proposals_pending:sum
expr: sum(etcd_server_proposals_pending)
labels:
kubermatic: federate
- record: job:etcd_server_proposals_committed_total:rate5msum
expr: sum(rate(etcd_server_proposals_committed_total[5m]))
labels:
kubermatic: federate
- record: job:etcd_server_proposals_applied_total:rate5msum
expr: sum(rate(etcd_server_proposals_applied_total[5m]))
labels:
kubermatic: federate
- record: job:etcd_server_leader_changes_seen_total:changes1d
expr: changes(etcd_server_leader_changes_seen_total[1d])
labels:
kubermatic: federate
- record: job:etcd_debugging_mvcc_delete_total:rate5m
expr: rate(etcd_debugging_mvcc_delete_total[5m])
labels:
kubermatic: federate
- record: job:etcd_debugging_mvcc_put_total:rate5m
expr: rate(etcd_debugging_mvcc_put_total[5m])
labels:
kubermatic: federate
- record: job:etcd_debugging_mvcc_range_total:rate5m
expr: rate(etcd_debugging_mvcc_range_total[5m])
labels:
kubermatic: federate
- record: job:etcd_debugging_mvcc_watcher_total:rate5m
expr: rate(etcd_debugging_mvcc_watcher_total[5m])
labels:
kubermatic: federate
- record: job:etcd_debugging_mvcc_txn_total:rate5m
expr: rate(etcd_debugging_mvcc_txn_total[5m])
labels:
kubermatic: federate
- record: job:etcd_debugging_mvcc_keys_total:clone
expr: etcd_debugging_mvcc_keys_total
labels:
kubermatic: federate
- record: job:etcd_debugging_store_reads_total:rate5m
expr: rate(etcd_debugging_store_reads_total[5m])
labels:
kubermatic: federate
- record: job:etcd_debugging_store_writes_total:rate5m
expr: rate(etcd_debugging_store_writes_total[5m])
labels:
kubermatic: federate
- record: job:etcd_debugging_store_expires_total:rate5m
expr: rate(etcd_debugging_store_expires_total[5m])
labels:
kubermatic: federate
- name: machine-controller
rules:
- alert: MachineControllerTooManyErrors
annotations:
message: Machine Controller in {{ $labels.namespace }} has too many errors in its loop.
expr: |
sum(rate(machine_controller_errors_total[5m])) by (namespace) > 0.01
for: 20m
labels:
severity: warning
- alert: MachineControllerMachineDeletionTakesTooLong
annotations:
message: Machine {{ $labels.machine }} of cluster {{ $labels.cluster }} is stuck in deletion for more than 30min.
expr: (time() - machine_controller_machine_deleted) > 30*60
for: 0m
labels:
severity: warning
- alert: AWSInstanceCountTooHigh
annotations:
message: '{{ $labels.machine }} has more than one instance at AWS'
expr: machine_controller_aws_instances_for_machine > 1
for: 30m
labels:
severity: warning
- record: job:machine_controller_errors_total:rate5m
expr: rate(machine_controller_errors_total[5m])
labels:
kubermatic: federate
- record: job:machine_controller_workers:sum
expr: sum(machine_controller_workers)
labels:
kubermatic: federate
- record: job:machine_controller_machines:sum
expr: sum(machine_controller_machines)
labels:
kubermatic: federate
- name: etcd
rules:
- alert: EtcdInsufficientMembers
annotations:
message: 'Etcd cluster "{{ $labels.job }}": insufficient members ({{ $value }}).'
expr: |
sum(up{job="etcd"} == bool 1) by (job) < ((count(up{job="etcd"}) by (job) + 1) / 2)
for: 15m
labels:
severity: critical
- alert: EtcdNoLeader
annotations:
message: 'Etcd cluster "{{ $labels.job }}": member {{ $labels.instance }} has no leader.'
expr: |
etcd_server_has_leader{job="etcd"} == 0
for: 15m
labels:
severity: critical
- alert: EtcdHighNumberOfLeaderChanges
annotations:
message: 'Etcd cluster "{{ $labels.job }}": instance {{ $labels.instance }} has seen {{ $value }} leader changes within the last hour.'
expr: |
rate(etcd_server_leader_changes_seen_total{job="etcd"}[15m]) > 3
for: 15m
labels:
severity: warning
- alert: EtcdGRPCRequestsSlow
annotations:
message: 'Etcd cluster "{{ $labels.job }}": gRPC requests to {{ $labels.grpc_method }} are taking {{ $value }}s on etcd instance {{ $labels.instance }}.'
expr: |
histogram_quantile(0.99, sum(rate(grpc_server_handling_seconds_bucket{job="etcd", grpc_type="unary"}[5m])) by (job, instance, grpc_service, grpc_method, le))
> 0.15
for: 10m
labels:
severity: critical
- alert: EtcdMemberCommunicationSlow
annotations:
message: 'Etcd cluster "{{ $labels.job }}": member communication with {{ $labels.To }} is taking {{ $value }}s on etcd instance {{ $labels.instance }}.'
expr: |
histogram_quantile(0.99, rate(etcd_network_peer_round_trip_time_seconds_bucket{job="etcd"}[5m]))
> 0.15
for: 10m
labels:
severity: warning
- alert: EtcdHighNumberOfFailedProposals
annotations:
message: 'Etcd cluster "{{ $labels.job }}": {{ $value }} proposal failures within the last hour on etcd instance {{ $labels.instance }}.'
expr: |
rate(etcd_server_proposals_failed_total{job="etcd"}[15m]) > 5
for: 15m
labels:
severity: warning
- alert: EtcdHighFsyncDurations
annotations:
message: 'Etcd cluster "{{ $labels.job }}": 99th percentile fync durations are {{ $value }}s on etcd instance {{ $labels.instance }}.'
expr: |
histogram_quantile(0.99, rate(etcd_disk_wal_fsync_duration_seconds_bucket{job="etcd"}[5m]))
> 0.5
for: 10m
labels:
severity: warning
- alert: EtcdHighCommitDurations
annotations:
message: 'Etcd cluster "{{ $labels.job }}": 99th percentile commit durations {{ $value }}s on etcd instance {{ $labels.instance }}.'
expr: |
histogram_quantile(0.99, rate(etcd_disk_backend_commit_duration_seconds_bucket{job="etcd"}[5m]))
> 0.25
for: 10m
labels:
severity: warning
- name: process.filedescriptors
rules:
- expr: process_open_fds / process_max_fds
record: instance:fd_utilization
- alert: FdExhaustionClose
annotations:
message: '{{ $labels.job }} instance {{ $labels.instance }} will exhaust its file descriptors soon'
expr: |
predict_linear(instance:fd_utilization[1h], 3600 * 4) > 1
for: 10m
labels:
severity: warning
- alert: FdExhaustionClose
annotations:
message: '{{ $labels.job }} instance {{ $labels.instance }} will exhaust its file descriptors soon'
expr: |
predict_linear(instance:fd_utilization[10m], 3600) > 1
for: 10m
labels:
severity: critical
- name: kubernetes-absent
rules:
- alert: KubernetesApiserverDown
annotations:
message: Kubernetes apiserver has disappeared from Prometheus target discovery.
expr: absent(up{job="apiserver"} == 1)
for: 15m
labels:
severity: critical
- alert: KubernetesControllerManagerDown
annotations:
message: Kubernetes controller-manager has disappeared from Prometheus target discovery.
expr: absent(up{job="controller-manager"} == 1) and absent(up{job="openshift-controller-manager"} == 1)
for: 15m
labels:
severity: critical
- alert: KubernetesSchedulerDown
annotations:
message: Kubernetes scheduler has disappeared from Prometheus target discovery.
expr: absent(up{job="scheduler"} == 1) and absent(up{job="openshift-controller-manager"} == 1)
for: 15m
labels:
severity: critical
- alert: MachineControllerDown
annotations:
message: Machine controller has disappeared from Prometheus target discovery.
expr: absent(up{job="machine-controller"} == 1)
for: 15m
labels:
severity: critical
- alert: UserClusterControllerDown
annotations:
message: User Cluster Controller has disappeared from Prometheus target discovery.
expr: absent(up{job="usercluster-controller"} == 1)
for: 15m
labels:
severity: critical
- alert: KubeStateMetricsDown
annotations:
message: Kube-state-metrics has disappeared from Prometheus target discovery.
expr: absent(up{job="kube-state-metrics"} == 1)
for: 15m
labels:
severity: warning
- alert: EtcdDown
annotations:
message: Etcd has disappeared from Prometheus target discovery.
expr: absent(up{job="etcd"} == 1)
for: 15m
labels:
severity: critical
# This is triggered if the cluster does have nodes, but the cadvisor could
# not successfully be scraped for whatever reason. An absent() on cadvisor
# metrics is not a good alert because clusters could simply have no nodes
# and hence no cadvisors.
- alert: CAdvisorDown
annotations:
message: cAdvisor on {{ $labels.kubernetes_io_hostname }} could not be scraped.
expr: up{job="cadvisor"} == 0
for: 15m
labels:
severity: warning
# This functions similarly to the cadvisor alert above.
- alert: KubernetesNodeDown
annotations:
message: The kubelet on {{ $labels.kubernetes_io_hostname }} could not be scraped.
expr: up{job="kubernetes-nodes"} == 0
for: 15m
labels:
severity: warning
- alert: DNSResolverDown
annotations:
message: DNS resolver has disappeared from Prometheus target discovery.
expr: absent(up{job="dns-resolver"} == 1)
for: 15m
labels:
severity: warning
- name: kubernetes-nodes
rules:
- alert: KubernetesNodeNotReady
annotations:
message: '{{ $labels.node }} has been unready for more than an hour.'
expr: kube_node_status_condition{condition="Ready",status="true"} == 0
for: 30m
labels:
severity: warning
`