Package: kg-prometheusstack
KubraGen Builder: Prometheus Stackkg_prometheusstack is a builder forKubraGenthat deploys
aPrometheusstack in Kubernetes.The stack consist of Prometheus (required), Grafana, Kube-State-Metrics and Node Exporter.KubraGenis a Kubernetes YAML generator library that makes it possible to generate
configurations using the full power of the Python programming language.Website:https://github.com/RangelReale/kg_prometheusstackRepository:https://github.com/RangelReale/kg_prometheusstack.gitDocumentation:https://kg_prometheusstack.readthedocs.org/PyPI:https://pypi.python.org/pypi/kg_prometheusstackExamplefromkg_prometheusimportPrometheusConfigFile,PrometheusConfigFileOptionsfromkubragenimportKubraGenfromkubragen.constsimportPROVIDER_GOOGLE,PROVIDERSVC_GOOGLE_GKEfromkubragen.objectimportObjectfromkubragen.optionimportOptionRootfromkubragen.optionsimportOptionsfromkubragen.outputimportOutputProject,OD_FileTemplate,OutputFile_ShellScript,OutputFile_Kubernetes,\OutputDriver_Printfromkubragen.providerimportProviderfromkg_prometheusstackimportPrometheusStackBuilder,PrometheusStackOptionskg=KubraGen(provider=Provider(PROVIDER_GOOGLE,PROVIDERSVC_GOOGLE_GKE),options=Options({'namespaces':{'mon':'app-monitoring',},}))out=OutputProject(kg)shell_script=OutputFile_ShellScript('create_gke.sh')out.append(shell_script)shell_script.append('set -e')## OUTPUTFILE: app-namespace.yaml#file=OutputFile_Kubernetes('app-namespace.yaml')file.append([Object({'apiVersion':'v1','kind':'Namespace','metadata':{'name':'app-monitoring',},},name='ns-monitoring',source='app',instance='app')])out.append(file)shell_script.append(OD_FileTemplate(f'kubectl apply -f ${{FILE_{file.fileid}}}'))shell_script.append(f'kubectl config set-context --current --namespace=app-monitoring')## SETUP: prometheusstack#pstack_config=PrometheusStackBuilder(kubragen=kg,options=PrometheusStackOptions({'namespace':OptionRoot('namespaces.mon'),'basename':'mypstack','config':{'prometheus_annotation':True,'prometheus_config':PrometheusConfigFile(options=PrometheusConfigFileOptions({'scrape':{'prometheus':{'enabled':True,}},}))},'kubernetes':{'volumes':{'prometheus-data':{'persistentVolumeClaim':{'claimName':'prometheusstack-storage-claim'}}},},}))pstack_config.ensure_build_names(pstack_config.BUILD_ACCESSCONTROL,pstack_config.BUILD_CONFIG,pstack_config.BUILD_SERVICE)## OUTPUTFILE: prometheusstack-config.yaml#file=OutputFile_Kubernetes('prometheusstack-config.yaml')out.append(file)file.append(pstack_config.build(pstack_config.BUILD_ACCESSCONTROL,pstack_config.BUILD_CONFIG))shell_script.append(OD_FileTemplate(f'kubectl apply -f ${{FILE_{file.fileid}}}'))## OUTPUTFILE: prometheusstack.yaml#file=OutputFile_Kubernetes('prometheusstack.yaml')out.append(file)file.append(pstack_config.build(pstack_config.BUILD_SERVICE))shell_script.append(OD_FileTemplate(f'kubectl apply -f ${{FILE_{file.fileid}}}'))## Write files#out.output(OutputDriver_Print())# out.output(OutputDriver_Directory('/tmp/build-gke'))Output:****** BEGIN FILE: 001-app-namespace.yaml ********
apiVersion: v1
kind: Namespace
metadata:
  name: app-monitoring

****** END FILE: 001-app-namespace.yaml ********
****** BEGIN FILE: 002-prometheusstack-config.yaml ********
apiVersion: v1
kind: ServiceAccount
metadata:
  name: mypstack
  namespace: app-monitoring
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: mypstack-prometheus
rules:
- apiGroups: ['']
<...more...>
****** END FILE: 002-prometheusstack-config.yaml ********
****** BEGIN FILE: 003-prometheusstack.yaml ********
kind: Service
apiVersion: v1
metadata:
  name: mypstack-prometheus
  namespace: app-monitoring
spec:
  selector:
    app: mypstack-prometheus
  ports:
  - protocol: TCP
    port: 80
    targetPort: 9090
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mypstack-prometheus
  namespace: app-monitoring
<...more...>
****** END FILE: 003-prometheusstack.yaml ********
****** BEGIN FILE: create_gke.sh ********
#!/bin/bash

set -e
kubectl apply -f 001-app-namespace.yaml
kubectl config set-context --current --namespace=app-monitoring
kubectl apply -f 002-prometheusstack-config.yaml
kubectl apply -f 003-prometheusstack.yaml

****** END FILE: create_gke.sh ********AuthorRangel Reale (rangelreale@gmail.com)