feat(monitoring): Move to Prometheus operator
Changes the implementation of Prometheus to use its Operator instead of the regular configmap implementation. This allows the deployment of metrics through independent ServiceMonitors instead of a centralized ConfigMap. This update is reflated in Grfana's datasources.
This commit is contained in:
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20
README.md
20
README.md
@ -2,22 +2,22 @@
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| Name | Usage | Accessibility | Host | DB type | Additional data | Backup configuration | Loki integration | Prometheus integration | Secret management | Status | Standalone migration |
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|-------------------------|--------------------------------------|------------------|-------------------------|------------|----------------------|----------------------|------------------|------------------------|------------------------|-----------------------------------|----------------------|
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| Traefik | Reverse proxy and load balancer | Public & Private | Socrates & Pythagoras-b | - | - | - | Configured | Configured | - | Completed<sup>5</sup> | Backbone |
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| Traefik | Reverse proxy and load balancer | Public & Private | Socrates & Pythagoras-b | - | - | - | Configured | Not configured | - | Completed<sup>5</sup> | Backbone |
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| ArgoCD | Declarative GitOPS CD | Private | Pythagoras-b | - | - | - | Configured | Configured | - | Completed | Backbone |
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| Vaultwarden | Password manager | Public | Pythagoras-b | PostgreSQL | - | 4AM K8s CronJob | Configured | Not available | Configured | Completed | Completed |
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| Gitlab | Version control system | Public | Pythagoras-b | PostgreSQL | User created content | 5AM internal CronJob | Configured | Configured | Not configured | Partial<sup>4</sup> | Awaiting |
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| Radarr | Movie collection manager | Private | Plato | PostgreSQL | - | - | Configured | Configured | Not configured | Partial | Awaiting |
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| Radarr | Movie collection manager | Private | Plato | PostgreSQL | - | - | Configured | Not configured | Not configured | Partial | Awaiting |
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| Gitlab | Version control system | Public | Pythagoras-b | PostgreSQL | User created content | 5AM internal CronJob | Configured | Not configured | Not configured | Partial<sup>4</sup> | Awaiting |
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| Flaresolverr | Cloudflare proxy | Private | Plato | - | - | - | - | - | - | Completed | Awaiting |
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| Prometheus | Metrics aggregator | Private | Pythagoras-b | TBD | - | Not configured | Configured | Configured | Not configured | Partial | Awaiting |
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| Loki | Log aggregator | Private | Pythagoras-b | TBD | - | Not configured | Configured | Configured | Not configured | Partial | Awaiting |
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| Grafana | Graph visualizer | Public | Pythagoras-b | - | - | Not configured | Configured | Configured | Configured | Partial | Awaiting |
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| Sonarr | TV shows collection manager | Private | Plato | SQLite | - | Not configured | Configured | Configured | Not configured | Partial | Awaiting |
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| Prometheus | Metrics aggregator | Private | Pythagoras-b | TBD | - | Not configured | Configured | Not configured | Not configured | Partial | Awaiting |
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| Loki | Log aggregator | Private | Pythagoras-b | TBD | - | Not configured | Configured | Not configured | Not configured | Partial | Awaiting |
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| Grafana | Graph visualizer | Public | Pythagoras-b | - | - | Not configured | Configured | Not configured | Configured | Partial | Awaiting |
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| Sonarr | TV shows collection manager | Private | Plato | SQLite | - | Not configured | Configured | Not configured | Not configured | Partial | Awaiting |
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| Prowlarr | Torrent indexer | Private | Plato | PostgreSQL | - | Not configured | Configured | Not available | Not configured | Partial | Awaiting |
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| Jellyfin | Media streaming | Public | Archimedes | SQLite** | - | - | Configured | Configured | Configured<sup>6</sup> | Completed | Awaiting |
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| Jellyfin | Media streaming | Public | Archimedes | SQLite** | - | - | Configured | Not configured | Configured<sup>6</sup> | Completed | Awaiting |
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| Jellyseerr | Media requesting WebUI | Public | Pythagoras-b | - | - | - | Not configured | Not available | Configured<sup>7</sup> | Awaiting configuration | Awaiting |
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| Adguard | DNS ad blocker and custom DNS server | Private | Socrates | - | - | - | Not configured | Not configured | Not configured | Pending configuration<sup>1</sup> | Awaiting |
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| Owncloud Infinity Scale | File hosting webUI | Public | Plato | ? | Drive files | Not configured | Configured | Not available | Not configured | Pending configuration<sup>2</sup> | Awaiting |
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| Synapse | Matrix server - Message centralizer | Public | Pythagoras-b | PostgreSQL | User medias | 4AM K8s CronJob | Configured | Configured | Not configured | Pending configuration<sup>3</sup> | Awaiting |
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| Synapse | Matrix server - Message centralizer | Public | Pythagoras-b | PostgreSQL | User medias | 4AM K8s CronJob | Configured | Not configured | Not configured | Pending configuration<sup>3</sup> | Awaiting |
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| therbron.com | Personal website | Public | Socrates | - | - | - | Not configured | Not configured | - | Awaiting configuration | Awaiting |
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| Home assistant | Home automation and monitoring | Private | Pythagoras-a | MariaDB | - | Not configured | Not configured | Not configured | Not configured | Awaiting configuration | Awaiting |
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| Vikunja | To-do and Kanban boards | Public | Pythagoras-b | - | - | - | Not configured | Not configured | - | Migrate to Gitlab | Awaiting |
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@ -65,7 +65,7 @@ longhorn
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## TODO
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- Add AntiAffinities to `outsider` nodes
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- Migrate Homeassistant to PostgreSQL instead of MariaDB
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- Move Prometheus connection management to ServiceMonitors instead of ConfigMap
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- ~~Move Prometheus connection management to ServiceMonitors instead of ConfigMap~~
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- Schedule longhorn S3 backups
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- ~~Migrate Vaultwarden to PostgreSQL instead of MariaDB~~
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- ~~Deploy PostgresQL cluster using operator for database HA and easy maintenance~~ - To be tested properly
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@ -24,6 +24,6 @@ data:
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- name: Prometheus
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type: prometheus
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access: proxy
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url: "http://prometheus-svc:9090"
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url: "http://prometheus-operated:9090"
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version: 1
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isDefault: false
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38467
monitoring/prometheus/bundle.yaml
Normal file
38467
monitoring/prometheus/bundle.yaml
Normal file
File diff suppressed because it is too large
Load Diff
@ -6,29 +6,19 @@ rules:
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- apiGroups: [""]
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resources:
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- nodes
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- nodes/proxy
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- nodes/metrics
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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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- apiGroups:
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- extensions
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- networking.k8s.io
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resources:
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- ingresses
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verbs: ["get", "list", "watch"]
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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/v1
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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: default
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namespace: monitoring
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12
monitoring/prometheus/clusterrolebinding.yaml
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12
monitoring/prometheus/clusterrolebinding.yaml
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apiVersion: rbac.authorization.k8s.io/v1
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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: monitoring
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@ -1,227 +0,0 @@
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: prometheus-server-conf
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labels:
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name: prometheus-server-conf
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namespace: monitoring
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data:
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prometheus.rules: |-
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groups:
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- name: devopscube demo alert
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rules:
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- alert: High Pod Memory
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expr: sum(container_memory_usage_bytes) > 1
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for: 1m
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labels:
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severity: slack
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annotations:
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summary: High Memory Usage
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prometheus.yml: |-
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global:
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scrape_interval: 5s
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evaluation_interval: 5s
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rule_files:
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- /etc/prometheus/prometheus.rules
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alerting:
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alertmanagers:
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- scheme: http
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static_configs:
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- targets:
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- "alertmanager.monitoring.svc:9093"
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scrape_configs:
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- job_name: 'gitlab-node_metrics'
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static_configs:
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- targets:
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- gitlab-svc.gitlab.svc.cluster.local:9100
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- job_name: 'gitlab-workhorse_metrics'
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static_configs:
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- targets:
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- gitlab-svc.gitlab.svc.cluster.local:9229
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- job_name: 'gitlab-exporter-database_metrics'
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metrics_path: "/database"
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static_configs:
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- targets:
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- gitlab-svc.gitlab.svc.cluster.local:9168
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- job_name: 'gitab-exporter-sidekiq_metrics'
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metrics_path: "/sidekiq"
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static_configs:
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- targets:
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- gitlab-svc.gitlab.svc.cluster.local:9168
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- job_name: 'gitlab-sidekiq_metrics'
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static_configs:
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- targets:
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- gitlab-svc.gitlab.svc.cluster.local:8082
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- job_name: 'gitlab-redis_metrics'
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static_configs:
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- targets:
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- gitlab-svc.gitlab.svc.cluster.local:9121
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- job_name: 'gitlab-postgres_metrics'
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static_configs:
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- targets:
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- gitlab-svc.gitlab.svc.cluster.local:9187
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- job_name: 'gitlab-gitaly_metrics'
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static_configs:
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- targets:
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- gitlab-svc.gitlab.svc.cluster.local:9236
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- job_name: 'gitlab-rails_metrics'
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metrics_path: "/-/metrics"
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scheme: https
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static_configs:
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- targets:
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- gitlab-svc.gitlab.svc.cluster.local
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- job_name: 'synapse'
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scrape_interval: 15s
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metrics_path: "/_synapse/metrics"
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static_configs:
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- targets:
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- synapse-svc.synapse.svc.cluster.local:9000
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- job_name: 'sonarr'
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static_configs:
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- targets:
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- sonarr-svc.torrent.svc.cluster.local:9707
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- job_name: 'radarr'
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static_configs:
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- targets:
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- radarr-svc.torrent.svc.cluster.local:9707
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- job_name: 'prowlarr'
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static_configs:
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- targets:
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- prowlarr-svc.torrent.svc.cluster.local:9707
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- job_name: 'jellyfin'
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metrics_path: "/metrics"
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static_configs:
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- targets:
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- jellyfin-svc.streaming.svc.cluster.local:80
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- job_name: 'node-exporter'
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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_endpoints_name]
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regex: 'node-exporter'
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action: keep
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- job_name: 'argocd'
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metrics_path: "/metrics"
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static_configs:
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- targets:
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- argocd-metrics.argocd.svc.cluster.local:8082
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- job_name: 'kubernetes-apiservers'
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kubernetes_sd_configs:
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- role: endpoints
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scheme: https
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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-nodes'
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scheme: https
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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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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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- target_label: __address__
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replacement: kubernetes.default.svc:443
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- source_labels: [__meta_kubernetes_node_name]
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regex: (.+)
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target_label: __metrics_path__
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replacement: /api/v1/nodes/${1}/proxy/metrics
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- job_name: 'kubernetes-pods'
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kubernetes_sd_configs:
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- role: pod
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relabel_configs:
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- source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_scrape]
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action: keep
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regex: true
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- source_labels: [__meta_kubernetes_pod_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_pod_annotation_prometheus_io_port]
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action: replace
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regex: ([^:]+)(?::\d+)?;(\d+)
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replacement: $1:$2
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target_label: __address__
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- action: labelmap
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regex: __meta_kubernetes_pod_label_(.+)
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- source_labels: [__meta_kubernetes_namespace]
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action: replace
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target_label: kubernetes_namespace
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- source_labels: [__meta_kubernetes_pod_name]
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action: replace
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target_label: kubernetes_pod_name
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- job_name: 'kube-state-metrics'
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static_configs:
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- targets: ['kube-state-metrics.kube-system.svc.cluster.local:8080']
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- job_name: 'kubernetes-cadvisor'
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scheme: https
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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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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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- target_label: __address__
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replacement: kubernetes.default.svc:443
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- source_labels: [__meta_kubernetes_node_name]
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regex: (.+)
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target_label: __metrics_path__
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replacement: /api/v1/nodes/${1}/proxy/metrics/cadvisor
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- job_name: 'kubernetes-service-endpoints'
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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_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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@ -1,45 +0,0 @@
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: prometheus
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namespace: monitoring
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labels:
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app: prometheus
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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: prometheus
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template:
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metadata:
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labels:
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app: prometheus
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spec:
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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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- "--storage.tsdb.retention.time=12h"
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- "--config.file=/etc/prometheus/prometheus.yml"
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- "--storage.tsdb.path=/prometheus/"
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ports:
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- containerPort: 9090
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resources:
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requests:
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cpu: 500m
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memory: 500M
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limits:
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cpu: 1
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memory: 1Gi
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volumeMounts:
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- name: prometheus-config-volume
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mountPath: /etc/prometheus
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- name: prometheus-storage-volume
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mountPath: /prometheus/
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volumes:
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- name: prometheus-config-volume
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configMap:
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defaultMode: 420
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name: prometheus-server-conf
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- name: prometheus-storage-volume
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emptyDir: {}
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apiVersion: kustomize.config.k8s.io/v1beta1
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kind: Kustomization
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namespace: monitoring
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resources:
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- bundle.yaml
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- serviceaccount.yaml
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- clusterrole.yaml
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- configmap.yaml
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- deployment.yaml
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- service.yaml
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- clusterrolebinding.yaml
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- prometheus.yaml
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14
monitoring/prometheus/prometheus.yaml
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14
monitoring/prometheus/prometheus.yaml
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apiVersion: monitoring.coreos.com/v1
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kind: Prometheus
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metadata:
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name: prometheus
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spec:
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serviceAccountName: prometheus
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serviceMonitorNamespaceSelector: {}
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serviceMonitorSelector:
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matchLabels:
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team: core
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resources:
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requests:
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memory: 400Mi
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enableAdminAPI: false
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apiVersion: v1
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kind: Service
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metadata:
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name: prometheus-svc
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namespace: monitoring
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spec:
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ports:
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- name: http
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port: 9090
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protocol: TCP
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targetPort: 9090
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selector:
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app: prometheus
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4
monitoring/prometheus/serviceaccount.yaml
Normal file
4
monitoring/prometheus/serviceaccount.yaml
Normal file
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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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