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Merge pull request #5 from ethpandaops/feat/chproxy
feat(charts/chproxy): init
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‎README.md

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## List of charts
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- [`cloudflare-tunnel`](charts/cloudflare-tunnel)
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- [`chproxy`](charts/chproxy)
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- [`raw-configmap`](charts/raw-configmap)
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## Development
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‎charts/chproxy/.helmignore

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# Patterns to ignore when building packages.
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# This supports shell glob matching, relative path matching, and
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# negation (prefixed with !). Only one pattern per line.
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.DS_Store
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# Common VCS dirs
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.git/
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.gitignore
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.bzr/
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.bzrignore
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.hg/
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.hgignore
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.svn/
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# Common backup files
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*.swp
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*.bak
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*.tmp
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*.orig
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*~
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# Various IDEs
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.project
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.idea/
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*.tmproj
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.vscode/

‎charts/chproxy/Chart.yaml

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apiVersion: v2
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name: chproxy
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description: HTTP proxy and load balancer for ClickHouse
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home: https://www.chproxy.org
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type: application
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version: 0.0.1
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maintainers:
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- name: savid
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email: andrew.davis@ethereum.org

‎charts/chproxy/README.md

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# chproxy
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![Version: 0.0.1](https://img.shields.io/badge/Version-0.0.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square)
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HTTP proxy and load balancer for ClickHouse
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**Homepage:** <https://www.chproxy.org>
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## Values
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| Key | Type | Default | Description |
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|-----|------|---------|-------------|
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| affinity | object | `{}` | Affinity configuration for pods |
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| annotations | object | `{}` | Annotations for the Deployment |
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| args | list | `[]` | Command arguments |
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| autoscaling.enabled | bool | `false` | Autoscaling configuration |
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| autoscaling.maxReplicas | int | `3` | Maximum number of replicas |
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| autoscaling.minReplicas | int | `2` | Minimum number of replicas |
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| autoscaling.targetCPUUtilizationPercentage | int | `85` | Target CPU utilization percentage |
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| config.clusters[0].name | string | `"default"` | |
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| config.clusters[0].nodes[0] | string | `"clickhouse:8123"` | |
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| config.clusters[0].scheme | string | `"http"` | |
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| config.clusters[0].users[0].name | string | `"default"` | |
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| config.hack_me_please | bool | `true` | |
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| config.log_debug | bool | `false` | |
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| config.server.http.listen_addr | string | `":8080"` | |
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| config.server.http.read_timeout | string | `"5m"` | |
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| config.server.proxy.enable | bool | `true` | |
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| config.server.proxy.header | string | `"CF-Connecting-IP"` | |
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| config.users[0].name | string | `"default"` | |
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| config.users[0].to_cluster | string | `"default"` | |
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| config.users[0].to_user | string | `"default"` | |
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| containerSecurityContext | object | See `values.yaml` | The security context for containers |
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| customArgs | list | `[]` | Custom args for the chproxy container |
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| customCommand | list | `[]` | Command replacement for the chproxy container |
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| extraContainers | list | `[]` | Additional containers |
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| extraEnv | list | `[]` | Additional env variables |
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| extraPodPorts | list | `[]` | Extra Pod ports |
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| extraPorts | list | `[]` | Additional ports. Useful when using extraContainers |
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| extraVolumeMounts | list | `[]` | Additional volume mounts |
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| extraVolumes | list | `[]` | Additional volumes |
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| fullnameOverride | string | `""` | Overrides the chart's computed fullname |
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| image.pullPolicy | string | `"IfNotPresent"` | chproxy container pull policy |
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| image.repository | string | `"contentsquareplatform/chproxy"` | chproxy container image repository |
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| image.tag | string | `"v1.26.5"` | chproxy container image tag |
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| imagePullSecrets | list | `[]` | Image pull secrets for Docker images |
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| ingress.http.annotations | object | `{}` | Annotations for Ingress |
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| ingress.http.enabled | bool | `false` | Ingress resource for the HTTP API |
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| ingress.http.hosts[0].host | string | `"chart-example.local"` | |
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| ingress.http.hosts[0].paths | list | `[]` | |
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| ingress.http.tls | list | `[]` | Ingress TLS |
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| initContainers | list | `[]` | Additional init containers |
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| lifecycle | object | See `values.yaml` | Lifecycle hooks |
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| livenessProbe | object | See `values.yaml` | Liveness probe |
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| nameOverride | string | `""` | Overrides the chart's name |
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| nodeSelector | object | `{}` | Node selector for pods |
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| podAnnotations | object | `{}` | Pod annotations |
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| podDisruptionBudget | object | `{}` | Define the PodDisruptionBudget spec If not set then a PodDisruptionBudget will not be created |
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| podLabels | object | `{}` | Pod labels |
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| priorityClassName | string | `nil` | Pod priority class |
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| readinessProbe | object | See `values.yaml` | Readiness probe |
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| replicas | int | `1` | Number of replicas |
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| resources | object | `{}` | Resource requests and limits |
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| secretEnv | object | `{}` | Secret env variables injected via a created secret |
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| securityContext | object | See `values.yaml` | The security context for pods |
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| service.type | string | `"ClusterIP"` | Service type |
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| serviceAccount.annotations | object | `{}` | Annotations to add to the service account |
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| serviceAccount.create | bool | `false` | Specifies whether a service account should be created |
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| serviceAccount.name | string | `""` | The name of the service account to use. If not set and create is true, a name is generated using the fullname template |
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| serviceMonitor.annotations | object | `{}` | Additional ServiceMonitor annotations |
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| serviceMonitor.enabled | bool | `false` | If true, a ServiceMonitor CRD is created for a prometheus operator https://github.com/coreos/prometheus-operator |
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| serviceMonitor.interval | string | `"15s"` | ServiceMonitor scrape interval |
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| serviceMonitor.labels | object | `{}` | Additional ServiceMonitor labels |
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| serviceMonitor.namespace | string | `nil` | Alternative namespace for ServiceMonitor |
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| serviceMonitor.path | string | `"/metrics"` | Path to scrape |
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| serviceMonitor.relabelings | list | `[]` | ServiceMonitor relabelings |
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| serviceMonitor.scheme | string | `"http"` | ServiceMonitor scheme |
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| serviceMonitor.scrapeTimeout | string | `"30s"` | ServiceMonitor scrape timeout |
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| serviceMonitor.tlsConfig | object | `{}` | ServiceMonitor TLS configuration |
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| terminationGracePeriodSeconds | int | `90` | How long to wait until the pod is forcefully terminated |
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| tolerations | list | `[]` | Tolerations for pods |
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| topologySpreadConstraints | list | `[]` | Topology Spread Constraints for pods |

‎charts/chproxy/README.md.gotmpl

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{{ template "chart.header" . }}
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{{ template "chart.deprecationWarning" . }}
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{{ template "chart.versionBadge" . }}{{ template "chart.typeBadge" . }}
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{{ template "chart.description" . }}
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{{ template "chart.homepageLine" . }}
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{{ template "chart.sourcesSection" . }}
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{{ template "chart.requirementsSection" . }}
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{{ template "chart.valuesSection" . }}

‎charts/chproxy/templates/NOTES.txt

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1. Get the application URL by running these commands:
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{{- if .Values.ingress.enabled }}
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{{- range $host := .Values.ingress.hosts }}
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{{- range .paths }}
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http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ .path }}
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{{- end }}
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{{- end }}
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{{- else if contains "NodePort" .Values.service.type }}
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export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "chproxy.fullname" . }})
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export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
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echo http://$NODE_IP:$NODE_PORT
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{{- else if contains "LoadBalancer" .Values.service.type }}
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NOTE: It may take a few minutes for the LoadBalancer IP to be available.
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You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "chproxy.fullname" . }}'
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export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "chproxy.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
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echo http://$SERVICE_IP:{{ include "chproxy.httpPort" . }}
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{{- else if contains "ClusterIP" .Values.service.type }}
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export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "chproxy.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
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export CONTAINER_PORT=$(kubectl get pod --namespace {{ .Release.Namespace }} $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
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echo "Visit http://127.0.0.1:8080 to use your application"
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kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:$CONTAINER_PORT
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{{- end }}

‎charts/chproxy/templates/_helpers.tpl

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{{/*
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Expand the name of the chart.
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*/}}
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{{- define "chproxy.name" -}}
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{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
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{{- end }}
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{{/*
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Create a default fully qualified app name.
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We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
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If release name contains chart name it will be used as a full name.
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*/}}
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{{- define "chproxy.fullname" -}}
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{{- if .Values.fullnameOverride }}
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{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
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{{- else }}
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{{- $name := default .Chart.Name .Values.nameOverride }}
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{{- if contains $name .Release.Name }}
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{{- .Release.Name | trunc 63 | trimSuffix "-" }}
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{{- else }}
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{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
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{{- end }}
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{{- end }}
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{{- end }}
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{{/*
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Create chart name and version as used by the chart label.
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*/}}
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{{- define "chproxy.chart" -}}
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{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
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{{- end }}
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{{/*
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Common labels
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*/}}
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{{- define "chproxy.labels" -}}
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helm.sh/chart: {{ include "chproxy.chart" . }}
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{{ include "chproxy.selectorLabels" . }}
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{{- if .Chart.AppVersion }}
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app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
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{{- end }}
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app.kubernetes.io/managed-by: {{ .Release.Service }}
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{{- end }}
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{{/*
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Selector labels
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*/}}
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{{- define "chproxy.selectorLabels" -}}
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app.kubernetes.io/name: {{ include "chproxy.name" . }}
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app.kubernetes.io/instance: {{ .Release.Name }}
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{{- end }}
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{{/*
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Create the name of the service account to use
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*/}}
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{{- define "chproxy.serviceAccountName" -}}
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{{- if .Values.serviceAccount.create }}
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{{- default (include "chproxy.fullname" .) .Values.serviceAccount.name }}
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{{- else }}
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{{- default "default" .Values.serviceAccount.name }}
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{{- end }}
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{{- end }}
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{{- define "chproxy.httpPort" -}}
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{{ (split ":" .Values.config.server.http.listen_addr)._1 | default "8080" }}
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{{- end }}

‎charts/chproxy/templates/configmap.yaml

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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: {{ include "chproxy.fullname" . }}
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labels:
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{{- include "chproxy.labels" . | nindent 4 }}
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data:
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config.yaml: |-
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{{ toYaml .Values.config | nindent 4 }}

‎charts/chproxy/templates/deployment.yaml

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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: {{ include "chproxy.fullname" . }}
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labels:
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{{- include "chproxy.labels" . | nindent 4 }}
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annotations:
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{{- toYaml .Values.annotations | nindent 4 }}
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spec:
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replicas: {{ .Values.replicas }}
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selector:
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matchLabels:
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{{- include "chproxy.selectorLabels" . | nindent 6 }}
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template:
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metadata:
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labels:
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{{- include "chproxy.selectorLabels" . | nindent 8 }}
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{{- with .Values.podLabels }}
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{{- toYaml . | nindent 8 }}
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{{- end }}
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annotations:
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checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
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checksum/secrets: {{ include (print $.Template.BasePath "/secret.yaml") . | sha256sum }}
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{{- with .Values.podAnnotations }}
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{{- toYaml . | nindent 8 }}
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{{- end }}
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spec:
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serviceAccountName: {{ include "chproxy.serviceAccountName" . }}
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{{- if .Values.priorityClassName }}
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priorityClassName: {{ .Values.priorityClassName }}
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{{- end }}
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securityContext:
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{{- toYaml .Values.securityContext | nindent 8 }}
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initContainers:
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{{- if .Values.initContainers }}
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{{- toYaml .Values.initContainers | nindent 8 }}
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{{- end }}
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{{- with .Values.imagePullSecrets }}
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imagePullSecrets:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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containers:
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- name: {{ .Chart.Name }}
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image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
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imagePullPolicy: {{ .Values.image.pullPolicy }}
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command:
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{{- if gt (len .Values.customCommand) 0 }}
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{{- toYaml .Values.customCommand | nindent 12}}
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{{- else }}
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- /chproxy
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- --config
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- /config.yaml
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{{- if gt (len .Values.args) 0 }}
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{{- toYaml .Values.args | nindent 12}}
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{{- end }}
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{{- end }}
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{{- if gt (len .Values.customArgs) 0 }}
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args:
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{{- toYaml .Values.customArgs | nindent 12}}
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{{- end }}
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securityContext:
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{{- toYaml .Values.containerSecurityContext | nindent 12 }}
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volumeMounts:
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- name: config
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mountPath: "/config.yaml"
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subPath: config.yaml
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readOnly: true
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{{- if .Values.extraVolumeMounts }}
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{{ toYaml .Values.extraVolumeMounts | nindent 10 }}
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{{- end }}
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ports:
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- name: http
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containerPort: {{ include "chproxy.httpPort" . }}
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protocol: TCP
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{{- if .Values.extraPodPorts }}
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{{ toYaml .Values.extraPodPorts | nindent 10 }}
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{{- end }}
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livenessProbe:
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{{- toYaml .Values.livenessProbe | nindent 12 }}
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readinessProbe:
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{{- toYaml .Values.readinessProbe | nindent 12 }}
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lifecycle:
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{{- toYaml .Values.lifecycle | nindent 12 }}
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resources:
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{{- toYaml .Values.resources | nindent 12 }}
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env:
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{{- range $key, $value := .Values.secretEnv }}
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- name: {{ $key }}
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valueFrom:
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secretKeyRef:
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name: {{ include "chproxy.fullname" $ }}-env
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key: {{ $key }}
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{{- end }}
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{{- if .Values.extraEnv }}
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{{- toYaml .Values.extraEnv | nindent 12 }}
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{{- end }}
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{{- if .Values.extraContainers }}
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{{ toYaml .Values.extraContainers | nindent 8}}
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{{- end }}
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nodeSelector:
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{{- toYaml .Values.nodeSelector | nindent 8 }}
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affinity:
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{{- toYaml .Values.affinity | nindent 8 }}
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tolerations:
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{{- toYaml .Values.tolerations | nindent 8 }}
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topologySpreadConstraints:
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{{- toYaml .Values.topologySpreadConstraints | nindent 8 }}
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terminationGracePeriodSeconds: {{ .Values.terminationGracePeriodSeconds }}
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volumes:
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{{- if .Values.extraVolumes }}
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{{ toYaml .Values.extraVolumes | nindent 8}}
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{{- end }}
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- name: config
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configMap:
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name: {{ include "chproxy.fullname" . }}

‎charts/chproxy/templates/hpa.yaml

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{{- if .Values.autoscaling.enabled -}}
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apiVersion: autoscaling/v2
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kind: HorizontalPodAutoscaler
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metadata:
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name: {{ include "chproxy.fullname" . }}
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labels:
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{{- include "chproxy.labels" . | nindent 4 }}
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spec:
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scaleTargetRef:
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apiVersion: apps/v1
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kind: Deployment
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name: {{ include "chproxy.fullname" . }}
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minReplicas: {{ .Values.autoscaling.minReplicas }}
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maxReplicas: {{ .Values.autoscaling.maxReplicas }}
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metrics:
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- type: Resource
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resource:
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name: cpu
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target:
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type: Utilization
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averageUtilization: {{ .Values.autoscaling.targetCPUUtilizationPercentage }}
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{{- end }}

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