Skip to content

To upgrade the Loki Package💣

Check the upstream changelog and the helm chart upgrade notes.

Upgrading💣

Update dependencies💣

Typically, the --strategy=force-delete-replace is useful to “heavy handidly” bring in dep changes which may need to be reviewed.

cd chart/deps && \
kpt pkg update minio && \
kpt pkg update loki --strategy=force-delete-replace && \
kpt pkg update loki-simple-scalable --strategy=force-delete-replace ;

Update binaries💣

Pull assets and commit the binaries as well as the Chart.lock file that was generated.

helm dependency update ./chart

Update chart💣

chart/Chart.yaml

  • update loki version and appVersion
  • increment Big Bang version suffix to chart version

chart/values.yaml

  • Update tag for the new version.

chart/templates/bigbang/*

  • Add/update Big Bang network policies if applicable.

chart/tests/*

  • add cypress testing configuration and/or tests if necessary.

Modifications made to upstream💣

This is a high-level list of modifitations that Big Bang has made to the upstream helm chart. You can use this as as cross-check to make sure that no modifications were lost during the upgrade process.

chart/values.yaml

  • Review both the loki & loki-simple-scalable sub-chart values and bring any new important and relevant values to our chart/values.yaml. If it’s a new config item/option first add it to global if it’s a template or paste it directly in our global.config table value.

chart/deps/loki-simple-scalable/templates/read/statefulset-read.yaml

  • Ensure the config volume on line 117 also has an else if under the existing secret def to check for our global.existingSecretForConfig value.
          {{- else if .Values.global.existingSecretForConfig }}
          secret:
            secretName: {{ .Values.global.existingSecretForConfig }}

chart/deps/loki-simple-scalable/templates/write/statefulset-write.yaml

  • Ensure the config volume on line 117 also has an else if under the existing secret def to check for our global.existingSecretForConfig value.
          {{- else if .Values.global.existingSecretForConfig }}
          secret:
            secretName: {{ .Values.global.existingSecretForConfig }}

chart/deps/loki-simple-scalable/templates/service-memberlist.yaml

  • Ensure name is tcp and not http.
   ports:
     name: tcp

chart/deps/loki-simple-scalable/values.yaml loki-new/chart/deps/loki-simple-scalable/values.yaml

  • Change selfMonitoring to true.
   selfMonitoring:
     enabled: true

chart/deps/loki-simple-scalable/templates/tokengen/job-tokengen.yaml

  • Add enterprise tokengen tolerations value to job template on line 88
      {{- with .Values.enterprise.tokengen.tolerations }}
      tolerations:
        {{- toYaml . | nindent 8 }}
      {{- end }}

chart/deps/loki-simple-scalable/values.yaml

  • Add tolerations value to enterprise.tokengen block starting on line 276 eg:
    # -- Tolerations for tokengen Job
    tolerations: []

Testing new Loki Version💣

  • Deploy Loki as a part of BigBang
helm upgrade \
  --install bigbang ./bigbang/chart \
  --create-namespace \
  --namespace bigbang \
  --values ./bigbang/chart/values.yaml \
  --values ./bigbang/chart/ingress-certs.yaml \
  --values ./overrides/loki.yaml \
  --set gatekeeper.enabled=false \
  --set clusterAuditor.enabled=false \
  --set twistlock.enabled=false \
  --set loki.enabled=true \
  --set promtail.enabled=true \
  --set logging.enabled=false \
  --set eckoperator.enabled=false \
  --set fluentbit.enabled=true \
  --set jaeger.enabled=false \
  --set tempo.enabled=true \
  --set addons.minioOperator.enabled=true

overrides/loki.yaml

loki:
  git:
    tag: ""
    branch: "my-branch-name-goes-here"
  enabled: true
  strategy: scalable
  values:
    global:
      createGlobalConfig: true
      existingSecretForConfig: "loki-config"
  • Visit https://grafana.bigbang.dev and login
  • Search dashboards for Loki Dashboard Quick Search and confirm log data is being populated/no error messages.
  • Navigate to configuration -> Data Sources -> Loki and then click Save & Test to ensure Data Source changes can be saved successfully.
Last update: 2022-07-25 by Ryan Garcia