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feat(helm): ✨ add helm chart
Signed-off-by: Mario Vejlupek <[email protected]>
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‎.gitignore

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tmp

‎.vscode/settings.json

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{
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"conventionalCommits.scopes": [
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"helm"
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]
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}

‎Makefile

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test:
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helm upgrade --install --debug -n customer-monitoring-system --set-file script_py=./tmp/script.py -f ./tmp/values.test.yaml s3-metrics ./helm
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template:
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helm template --debug --output-dir=./tmp/ -n customer-monitoring-system --set-file script_py=./tmp/script.py -f ./tmp/values.test.yaml s3-metrics ./helm
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‎helm/Chart.yaml

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apiVersion: v2
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name: python-aws-exporter-base
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description: A Helm chart for the Python S3 script
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version: 2.1.0
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appVersion: v2.0

‎helm/templates/_helpers.tpl

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{{/* vim: set filetype=mustache: */}}
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{{/*
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Expand the name of the chart.
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*/}}
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{{- define "python-aws-exporter-base.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 "python-aws-exporter-base.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 "python-aws-exporter-base.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 "python-aws-exporter-base.labels" -}}
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app.kubernetes.io/name: {{ include "python-aws-exporter-base.name" . }}
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helm.sh/chart: {{ include "python-aws-exporter-base.chart" . }}
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app.kubernetes.io/instance: {{ .Release.Name }}
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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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Create the name of the service account to use
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*/}}
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{{- define "python-aws-exporter-base.serviceAccountName" -}}
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{{- if .Values.serviceAccount.create -}}
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{{ default (include "python-aws-exporter-base.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 -}}

‎helm/templates/aws.secret.yaml

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# Secret with AWS credentials from .Values
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apiVersion: v1
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kind: Secret
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metadata:
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name: {{ include "python-aws-exporter-base.fullname" . }}-aws-credentials
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type: Opaque
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data:
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AWS_ACCESS_KEY_ID: {{ .Values.aws.access_key_id | b64enc | quote }}
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AWS_SECRET_ACCESS_KEY: {{ .Values.aws.secret_access_key | b64enc | quote }}
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AWS_REGION: {{ .Values.aws.region | b64enc | quote }}
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‎helm/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 "python-aws-exporter-base.fullname" . }}-configmap
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data:
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{{ if .Values.pip_install }}
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requirements.txt: |-
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{{ .Values.pip_install | indent 4 }}
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{{ end }}
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script.py: |
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{{ .Values.script_py | indent 4 }}

‎helm/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 "python-aws-exporter-base.fullname" . }}
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spec:
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replicas: {{ .Values.replicaCount }}
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selector:
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matchLabels:
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app: {{ include "python-aws-exporter-base.fullname" . }}
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template:
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metadata:
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labels:
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app: {{ include "python-aws-exporter-base.fullname" . }}
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annotations:
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# aws.secret.yaml checksum
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checksum/aws.secret.yaml: {{ include (print $.Template.BasePath "/aws.secret.yaml") . | sha256sum }}
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checksum/configmap.yaml: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
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spec:
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containers:
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- name: python-script
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image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
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imagePullPolicy: {{ .Values.image.pullPolicy }}
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{{ if .Values.pip_install }}
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command: ["sh", "-c", "pip install -r /script/requirements.txt && python /script/script.py"]
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{{ else }}
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args: ["/script/script.py"]
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{{ end }}
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volumeMounts:
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- name: python-script
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mountPath: /script
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ports:
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- name: http
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containerPort: 8000
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env:
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- name: AWS_ACCESS_KEY_ID
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valueFrom:
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secretKeyRef:
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name: {{ include "python-aws-exporter-base.fullname" . }}-aws-credentials
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key: AWS_ACCESS_KEY_ID
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- name: AWS_SECRET_ACCESS_KEY
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valueFrom:
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secretKeyRef:
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name: {{ include "python-aws-exporter-base.fullname" . }}-aws-credentials
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key: AWS_SECRET_ACCESS_KEY
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- name: AWS_REGION
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valueFrom:
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secretKeyRef:
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name: {{ include "python-aws-exporter-base.fullname" . }}-aws-credentials
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key: AWS_REGION
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resources:
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{{ toYaml .Values.resources | indent 12 }}
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volumes:
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- name: python-script
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configMap:
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name: {{ include "python-aws-exporter-base.fullname" . }}-configmap

‎helm/templates/service.yaml

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apiVersion: v1
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kind: Service
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metadata:
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name: {{ include "python-aws-exporter-base.fullname" . }}
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labels:
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app: {{ include "python-aws-exporter-base.fullname" . }}
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spec:
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type: ClusterIP
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ports:
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- port: 8000
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targetPort: http
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protocol: TCP
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name: http
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selector:
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app: {{ include "python-aws-exporter-base.fullname" . }}

‎helm/templates/servicemonitor.yaml

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{{- if .Values.serviceMonitor.enabled }}
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apiVersion: monitoring.coreos.com/v1
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kind: ServiceMonitor
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metadata:
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name: {{ include "python-aws-exporter-base.fullname" . }}
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spec:
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selector:
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matchLabels:
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app: {{ include "python-aws-exporter-base.fullname" . }}
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endpoints:
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- port: http
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interval: {{ .Values.serviceMonitor.interval }}
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scrapeTimeout: {{ .Values.serviceMonitor.scrapeTimeout }}
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path: /
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{{- end }}

‎helm/values.test.yaml

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aws:
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access_key_id: AKIAT2IIDSITZ7JKTCEF
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secret_access_key: XXXXX
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region: eu-central-1

‎helm/values.yaml

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replicaCount: 1
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aws:
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access_key_id:
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secret_access_key:
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region:
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script_py: |
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while True:
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print("Hello World")
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image:
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repository: ghcr.io/container-driven-development/python-aws-exporter-base
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pullPolicy: IfNotPresent
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# tag: v0.1
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pip_install:
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# pip_install: |
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# antigravity==0.1
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nameOverride: ""
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fullnameOverride: ""
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serviceMonitor:
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enabled: true
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interval: 3600s
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scrapeTimeout: 30s
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service:
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type: ClusterIP
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port: 8000
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resources:
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limits:
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memory: 160Mi
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requests:
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cpu: 50m
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memory: 128Mi
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‎requirements.txt

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boto3==1.28.19
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prometheus_client==0.17.1
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python_json_logger==2.0.7

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