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Diffstat (limited to 'terraform-ci-infra/1n_nmd/prometheus/conf/nomad/prometheus.hcl')
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diff --git a/terraform-ci-infra/1n_nmd/prometheus/conf/nomad/prometheus.hcl b/terraform-ci-infra/1n_nmd/prometheus/conf/nomad/prometheus.hcl new file mode 100644 index 0000000000..2d74662f31 --- /dev/null +++ b/terraform-ci-infra/1n_nmd/prometheus/conf/nomad/prometheus.hcl @@ -0,0 +1,569 @@ +job "${job_name}" { + # The "region" parameter specifies the region in which to execute the job. + # If omitted, this inherits the default region name of "global". + # region = "global" + # + # The "datacenters" parameter specifies the list of datacenters which should + # be considered when placing this task. This must be provided. + datacenters = "${datacenters}" + + # The "type" parameter controls the type of job, which impacts the scheduler's + # decision on placement. This configuration is optional and defaults to + # "service". For a full list of job types and their differences, please see + # the online documentation. + # + # For more information, please see the online documentation at: + # + # https://www.nomadproject.io/docs/jobspec/schedulers + # + type = "service" + + update { + # The "max_parallel" parameter specifies the maximum number of updates to + # perform in parallel. In this case, this specifies to update a single task + # at a time. + max_parallel = 1 + + health_check = "checks" + + # The "min_healthy_time" parameter specifies the minimum time the allocation + # must be in the healthy state before it is marked as healthy and unblocks + # further allocations from being updated. + min_healthy_time = "10s" + + # The "healthy_deadline" parameter specifies the deadline in which the + # allocation must be marked as healthy after which the allocation is + # automatically transitioned to unhealthy. Transitioning to unhealthy will + # fail the deployment and potentially roll back the job if "auto_revert" is + # set to true. + healthy_deadline = "3m" + + # The "progress_deadline" parameter specifies the deadline in which an + # allocation must be marked as healthy. The deadline begins when the first + # allocation for the deployment is created and is reset whenever an allocation + # as part of the deployment transitions to a healthy state. If no allocation + # transitions to the healthy state before the progress deadline, the + # deployment is marked as failed. + progress_deadline = "10m" + +%{ if use_canary } + # The "canary" parameter specifies that changes to the job that would result + # in destructive updates should create the specified number of canaries + # without stopping any previous allocations. Once the operator determines the + # canaries are healthy, they can be promoted which unblocks a rolling update + # of the remaining allocations at a rate of "max_parallel". + # + # Further, setting "canary" equal to the count of the task group allows + # blue/green deployments. When the job is updated, a full set of the new + # version is deployed and upon promotion the old version is stopped. + canary = 1 + + # Specifies if the job should auto-promote to the canary version when all + # canaries become healthy during a deployment. Defaults to false which means + # canaries must be manually updated with the nomad deployment promote + # command. + auto_promote = true + + # The "auto_revert" parameter specifies if the job should auto-revert to the + # last stable job on deployment failure. A job is marked as stable if all the + # allocations as part of its deployment were marked healthy. + auto_revert = true +%{ endif } + } + + # The "group" stanza defines a series of tasks that should be co-located on + # the same Nomad client. Any task within a group will be placed on the same + # client. + # + # For more information and examples on the "group" stanza, please see + # the online documentation at: + # + # https://www.nomadproject.io/docs/job-specification/group + # + group "prod-group1-${service_name}" { + # The "count" parameter specifies the number of the task groups that should + # be running under this group. This value must be non-negative and defaults + # to 1. + count = ${group_count} + + # The volume stanza allows the group to specify that it requires a given + # volume from the cluster. + # + # For more information and examples on the "volume" stanza, please see + # the online documentation at: + # + # https://www.nomadproject.io/docs/job-specification/volume + # + %{ if use_host_volume } + volume "prod-volume1-${service_name}" { + type = "host" + read_only = false + source = "${host_volume}" + } + %{ endif } + + # The constraint allows restricting the set of eligible nodes. Constraints + # may filter on attributes or client metadata. + # + # For more information and examples on the "volume" stanza, please see + # the online documentation at: + # + # https://www.nomadproject.io/docs/job-specification/constraint + # + constraint { + attribute = "$${attr.cpu.arch}" + operator = "!=" + value = "arm64" + } + + # The "task" stanza creates an individual unit of work, such as a Docker + # container, web application, or batch processing. + # + # For more information and examples on the "task" stanza, please see + # the online documentation at: + # + # https://www.nomadproject.io/docs/job-specification/task + # + task "prod-task1-${service_name}" { + # The "driver" parameter specifies the task driver that should be used to + # run the task. + driver = "exec" + + %{ if use_host_volume } + volume_mount { + volume = "prod-volume1-${service_name}" + destination = "${data_dir}" + read_only = false + } + %{ endif } + + %{ if use_vault_provider } + vault { + policies = "${vault_kv_policy_name}" + } + %{ endif } + + # The "config" stanza specifies the driver configuration, which is passed + # directly to the driver to start the task. The details of configurations + # are specific to each driver, so please see specific driver + # documentation for more information. + config { + command = "local/prometheus-${version}.linux-amd64/prometheus" + args = [ + "--config.file=secrets/prometheus.yml", + "--storage.tsdb.path=${data_dir}prometheus/", + "--storage.tsdb.retention.time=15d" + ] + } + + # The artifact stanza instructs Nomad to fetch and unpack a remote resource, + # such as a file, tarball, or binary. Nomad downloads artifacts using the + # popular go-getter library, which permits downloading artifacts from a + # variety of locations using a URL as the input source. + # + # For more information and examples on the "artifact" stanza, please see + # the online documentation at: + # + # https://www.nomadproject.io/docs/job-specification/artifact + # + artifact { + source = "${url}" + } + + # The "template" stanza instructs Nomad to manage a template, such as + # a configuration file or script. This template can optionally pull data + # from Consul or Vault to populate runtime configuration data. + # + # For more information and examples on the "template" stanza, please see + # the online documentation at: + # + # https://www.nomadproject.io/docs/job-specification/template + # + template { + change_mode = "noop" + change_signal = "SIGINT" + destination = "secrets/alerts.yml" + left_delimiter = "{{{" + right_delimiter = "}}}" + data = <<EOH +--- +groups: +- name: "Consul" + rules: + - alert: ConsulServiceHealthcheckFailed + expr: consul_catalog_service_node_healthy == 0 + for: 0m + labels: + severity: critical + annotations: + summary: "Consul service healthcheck failed (instance {{ $labels.instance }})." + description: "Service: `{{ $labels.service_name }}` Healthcheck: `{{ $labels.service_id }}`." + - alert: ConsulMissingMasterNode + expr: consul_raft_peers < 3 + for: 0m + labels: + severity: critical + annotations: + summary: "Consul missing master node (instance {{ $labels.instance }})." + description: "Numbers of consul raft peers should be 3, in order to preserve quorum." + - alert: ConsulAgentUnhealthy + expr: consul_health_node_status{status="critical"} == 1 + for: 0m + labels: + severity: critical + annotations: + summary: "Consul agent unhealthy (instance {{ $labels.instance }})." + description: "A Consul agent is down." +- name: "Hosts" + rules: + - alert: NodeDown + expr: up == 0 + for: 0m + labels: + severity: critical + annotations: + summary: "Prometheus target missing (instance {{ $labels.instance }})." + description: "A Prometheus target has disappeared. An exporter might be crashed." + - alert: HostHighCpuLoad + expr: 100 - (avg by(instance) (rate(node_cpu_seconds_total{mode="idle"}[2m])) * 100) > 80 + for: 0m + labels: + severity: warning + annotations: + summary: "Host high CPU load (instance {{ $labels.instance }})." + description: "CPU load is > 80%." + - alert: HostOutOfMemory + expr: node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes * 100 < 10 + for: 2m + labels: + severity: warning + annotations: + summary: "Host out of memory (instance {{ $labels.instance }})." + description: "Node memory is filling up (< 10% left)." + - alert: HostOomKillDetected + expr: increase(node_vmstat_oom_kill[1m]) > 0 + for: 0m + labels: + severity: warning + annotations: + summary: "Host OOM kill detected (instance {{ $labels.instance }})." + description: "OOM kill detected." + - alert: HostMemoryUnderMemoryPressure + expr: rate(node_vmstat_pgmajfault[1m]) > 1000 + for: 2m + labels: + severity: warning + annotations: + summary: "Host memory under memory pressure (instance {{ $labels.instance }})." + description: "The node is under heavy memory pressure. High rate of major page faults." + - alert: HostOutOfDiskSpace + expr: (node_filesystem_avail_bytes * 100) / node_filesystem_size_bytes < 10 and ON (instance, device, mountpoint) node_filesystem_readonly == 0 + for: 2m + labels: + severity: warning + annotations: + summary: "Host out of disk space (instance {{ $labels.instance }})." + description: "Disk is almost full (< 10% left)." + - alert: HostRaidDiskFailure + expr: node_md_disks{state="failed"} > 0 + for: 2m + labels: + severity: warning + annotations: + summary: "Host RAID disk failure (instance {{ $labels.instance }})." + description: "At least one device in RAID array on {{ $labels.instance }} failed. Array {{ $labels.md_device }} needs attention and possibly a disk swap." + - alert: HostConntrackLimit + expr: node_nf_conntrack_entries / node_nf_conntrack_entries_limit > 0.8 + for: 5m + labels: + severity: warning + annotations: + summary: "Host conntrack limit (instance {{ $labels.instance }})." + description: "The number of conntrack is approching limit." + - alert: HostNetworkInterfaceSaturated + expr: (rate(node_network_receive_bytes_total{device!~"^tap.*"}[1m]) + rate(node_network_transmit_bytes_total{device!~"^tap.*"}[1m])) / node_network_speed_bytes{device!~"^tap.*"} > 0.8 + for: 1m + labels: + severity: warning + annotations: + summary: "Host Network Interface Saturated (instance {{ $labels.instance }})." + description: "The network interface {{ $labels.interface }} on {{ $labels.instance }} is getting overloaded." + - alert: HostSystemdServiceCrashed + expr: node_systemd_unit_state{state="failed"} == 1 + for: 0m + labels: + severity: warning + annotations: + summary: "Host SystemD service crashed (instance {{ $labels.instance }})." + description: "SystemD service crashed." + - alert: HostEdacCorrectableErrorsDetected + expr: increase(node_edac_correctable_errors_total[1m]) > 0 + for: 0m + labels: + severity: info + annotations: + summary: "Host EDAC Correctable Errors detected (instance {{ $labels.instance }})." + description: '{{ $labels.instance }} has had {{ printf "%.0f" $value }} correctable memory errors reported by EDAC in the last 5 minutes.' + - alert: HostEdacUncorrectableErrorsDetected + expr: node_edac_uncorrectable_errors_total > 0 + for: 0m + labels: + severity: warning + annotations: + summary: "Host EDAC Uncorrectable Errors detected (instance {{ $labels.instance }})." + description: '{{ $labels.instance }} has had {{ printf "%.0f" $value }} uncorrectable memory errors reported by EDAC in the last 5 minutes.' +- name: "Min.io" + rules: + - alert: MinioDiskOffline + expr: minio_offline_disks > 0 + for: 0m + labels: + severity: critical + annotations: + summary: "Minio disk offline (instance {{ $labels.instance }})" + description: "Minio disk is offline." + - alert: MinioStorageSpaceExhausted + expr: minio_disk_storage_free_bytes / 1024 / 1024 / 1024 < 10 + for: 2m + labels: + severity: warning + annotations: + summary: "Minio storage space exhausted (instance {{ $labels.instance }})." + description: "Minio storage space is low (< 10 GB)." +- name: "Prometheus" + rules: + - alert: PrometheusConfigurationReloadFailure + expr: prometheus_config_last_reload_successful != 1 + for: 0m + labels: + severity: warning + annotations: + summary: "Prometheus configuration reload failure (instance {{ $labels.instance }})." + description: "Prometheus configuration reload error." + - alert: PrometheusTooManyRestarts + expr: changes(process_start_time_seconds{job=~"prometheus|pushgateway|alertmanager"}[15m]) > 2 + for: 0m + labels: + severity: warning + annotations: + summary: "Prometheus too many restarts (instance {{ $labels.instance }})." + description: "Prometheus has restarted more than twice in the last 15 minutes. It might be crashlooping." + - alert: PrometheusAlertmanagerConfigurationReloadFailure + expr: alertmanager_config_last_reload_successful != 1 + for: 0m + labels: + severity: warning + annotations: + summary: "Prometheus AlertManager configuration reload failure (instance {{ $labels.instance }})." + description: "AlertManager configuration reload error." + - alert: PrometheusRuleEvaluationFailures + expr: increase(prometheus_rule_evaluation_failures_total[3m]) > 0 + for: 0m + labels: + severity: critical + annotations: + summary: "Prometheus rule evaluation failures (instance {{ $labels.instance }})." + description: "Prometheus encountered {{ $value }} rule evaluation failures, leading to potentially ignored alerts." + - alert: PrometheusTargetScrapingSlow + expr: prometheus_target_interval_length_seconds{quantile="0.9"} > 60 + for: 5m + labels: + severity: warning + annotations: + summary: "Prometheus target scraping slow (instance {{ $labels.instance }})." + description: "Prometheus is scraping exporters slowly." + - alert: PrometheusTsdbCompactionsFailed + expr: increase(prometheus_tsdb_compactions_failed_total[1m]) > 0 + for: 0m + labels: + severity: critical + annotations: + summary: "Prometheus TSDB compactions failed (instance {{ $labels.instance }})." + description: "Prometheus encountered {{ $value }} TSDB compactions failures." + - alert: PrometheusTsdbHeadTruncationsFailed + expr: increase(prometheus_tsdb_head_truncations_failed_total[1m]) > 0 + for: 0m + labels: + severity: critical + annotations: + summary: "Prometheus TSDB head truncations failed (instance {{ $labels.instance }})." + description: "Prometheus encountered {{ $value }} TSDB head truncation failures." + - alert: PrometheusTsdbWalCorruptions + expr: increase(prometheus_tsdb_wal_corruptions_total[1m]) > 0 + for: 0m + labels: + severity: critical + annotations: + summary: "Prometheus TSDB WAL corruptions (instance {{ $labels.instance }})." + description: "Prometheus encountered {{ $value }} TSDB WAL corruptions." + - alert: PrometheusTsdbWalTruncationsFailed + expr: increase(prometheus_tsdb_wal_truncations_failed_total[1m]) > 0 + for: 0m + labels: + severity: critical + annotations: + summary: "Prometheus TSDB WAL truncations failed (instance {{ $labels.instance }})." + description: "Prometheus encountered {{ $value }} TSDB WAL truncation failures." +EOH + } + + template { + change_mode = "noop" + change_signal = "SIGINT" + destination = "secrets/prometheus.yml" + data = <<EOH +--- +global: + scrape_interval: 5s + scrape_timeout: 5s + evaluation_interval: 5s + +alerting: + alertmanagers: + - consul_sd_configs: + - server: '{{ env "NOMAD_IP_prometheus" }}:8500' + services: [ 'alertmanager' ] + +rule_files: + - 'alerts.yml' + +scrape_configs: + + - job_name: 'Nomad Cluster' + consul_sd_configs: + - server: '{{ env "NOMAD_IP_prometheus" }}:8500' + services: [ 'nomad-client', 'nomad' ] + relabel_configs: + - source_labels: [__meta_consul_tags] + regex: '(.*)http(.*)' + action: keep + metrics_path: /v1/metrics + params: + format: [ 'prometheus' ] + + - job_name: 'Consul Cluster' + static_configs: + - targets: [ '10.30.51.30:8500', '10.30.51.32:8500', '10.30.51.33:8500' ] + metrics_path: /v1/agent/metrics + params: + format: [ 'prometheus' ] + + - job_name: 'Alertmanager' + consul_sd_configs: + - server: '{{ env "NOMAD_IP_prometheus" }}:8500' + services: [ 'alertmanager' ] + + - job_name: 'Blackbox Exporter (icmp)' + static_configs: + - targets: [ 'gerrit.fd.io' ] + - targets: [ 'jenkins.fd.io' ] + - targets: [ '10.30.51.32' ] + params: + module: [ 'icmp_v4' ] + relabel_configs: + - source_labels: [__address__] + target_label: __param_target + - source_labels: [__param_target] + target_label: instance + - target_label: __address__ + replacement: localhost:9115 + metrics_path: /probe + + - job_name: 'Blackbox Exporter (http)' + static_configs: + - targets: [ 'gerrit.fd.io' ] + - targets: [ 'jenkins.fd.io' ] + params: + module: [ 'http_2xx' ] + relabel_configs: + - source_labels: [__address__] + target_label: __param_target + - source_labels: [__param_target] + target_label: instance + - target_label: __address__ + replacement: localhost:9115 + metrics_path: /probe + + - job_name: 'cAdvisor Exporter' + consul_sd_configs: + - server: '{{ env "NOMAD_IP_prometheus" }}:8500' + services: [ 'cadvisorexporter' ] + + - job_name: 'Grafana' + consul_sd_configs: + - server: '{{ env "NOMAD_IP_prometheus" }}:8500' + services: [ 'grafana' ] + + - job_name: 'Node Exporter' + consul_sd_configs: + - server: '{{ env "NOMAD_IP_prometheus" }}:8500' + services: [ 'nodeexporter' ] + + - job_name: 'Prometheus' + consul_sd_configs: + - server: '{{ env "NOMAD_IP_prometheus" }}:8500' + services: [ 'prometheus' ] + + - job_name: 'Minio' + bearer_token: eyJhbGciOiJIUzUxMiIsInR5cCI6IkpXVCJ9.eyJleHAiOjQ3NjQ1ODEzMzcsImlzcyI6InByb21ldGhldXMiLCJzdWIiOiJtaW5pbyJ9.oeTw3EIaiFmlDikrHXWiWXMH2vxLfDLkfjEC7G2N3M_keH_xyA_l2ofLLNYtopa_3GCEZnxLQdPuFZrmgpkDWg + consul_sd_configs: + - server: '{{ env "NOMAD_IP_prometheus" }}:8500' + services: [ 'storage' ] + metrics_path: /minio/prometheus/metrics +EOH + } + + # The service stanza instructs Nomad to register a service with Consul. + # + # For more information and examples on the "task" stanza, please see + # the online documentation at: + # + # https://www.nomadproject.io/docs/job-specification/service + # + service { + name = "${service_name}" + port = "${service_name}" + tags = [ "${service_name}$${NOMAD_ALLOC_INDEX}" ] + check { + name = "Prometheus Check Live" + type = "http" + path = "/-/healthy" + interval = "10s" + timeout = "2s" + } + } + + # The "resources" stanza describes the requirements a task needs to + # execute. Resource requirements include memory, network, cpu, and more. + # This ensures the task will execute on a machine that contains enough + # resource capacity. + # + # For more information and examples on the "resources" stanza, please see + # the online documentation at: + # + # https://www.nomadproject.io/docs/job-specification/resources + # + resources { + cpu = ${cpu} + memory = ${mem} + # The network stanza specifies the networking requirements for the task + # group, including the network mode and port allocations. When scheduling + # jobs in Nomad they are provisioned across your fleet of machines along + # with other jobs and services. Because you don't know in advance what host + # your job will be provisioned on, Nomad will provide your tasks with + # network configuration when they start up. + # + # For more information and examples on the "template" stanza, please see + # the online documentation at: + # + # https://www.nomadproject.io/docs/job-specification/network + # + network { + port "${service_name}" { + static = ${port} + } + } + } + } + } +}
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