mirror of
https://github.com/bitnami/charts.git
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319 lines
11 KiB
Smarty
319 lines
11 KiB
Smarty
{{/*
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Copyright Broadcom, Inc. All Rights Reserved.
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SPDX-License-Identifier: APACHE-2.0
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*/}}
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{{/* vim: set filetype=mustache: */}}
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{{/*
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Return the proper Cassandra image name
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*/}}
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{{- define "cassandra.image" -}}
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{{ include "common.images.image" (dict "imageRoot" .Values.image "global" .Values.global) }}
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{{- end -}}
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{{/*
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Return the proper metrics image name
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*/}}
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{{- define "cassandra.metrics.image" -}}
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{{ include "common.images.image" (dict "imageRoot" .Values.metrics.image "global" .Values.global) }}
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{{- end -}}
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{{/*
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Return the proper image name (for the init container volume-permissions image)
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*/}}
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{{- define "cassandra.volumePermissions.image" -}}
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{{ include "common.images.image" (dict "imageRoot" .Values.volumePermissions.image "global" .Values.global) }}
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{{- end -}}
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{{/*
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Return the proper Docker Image Registry Secret Names
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*/}}
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{{- define "cassandra.imagePullSecrets" -}}
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{{ include "common.images.pullSecrets" (dict "images" (list .Values.image .Values.metrics.image .Values.volumePermissions.image) "global" .Values.global) }}
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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 "cassandra.serviceAccountName" -}}
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{{- if .Values.serviceAccount.create -}}
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{{ default (include "common.names.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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{{/*
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Return the list of Cassandra seed nodes
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*/}}
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{{- define "cassandra.seeds" -}}
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{{- $seeds := list }}
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{{- $fullname := include "common.names.fullname" . }}
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{{- $releaseNamespace := include "common.names.namespace" . }}
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{{- $clusterDomain := .Values.clusterDomain }}
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{{- $seedCount := .Values.cluster.seedCount | int }}
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{{- range $e, $i := until $seedCount }}
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{{- $seeds = append $seeds (printf "%s-%d.%s-headless.%s.svc.%s" $fullname $i $fullname $releaseNamespace $clusterDomain) }}
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{{- end }}
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{{- range .Values.cluster.extraSeeds }}
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{{- $seeds = append $seeds . }}
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{{- end }}
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{{- join "," $seeds }}
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{{- end -}}
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{{/*
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Compile all warnings into a single message, and call fail.
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*/}}
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{{- define "cassandra.validateValues" -}}
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{{- $messages := list -}}
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{{- $messages := append $messages (include "cassandra.validateValues.seedCount" .) -}}
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{{- $messages := append $messages (include "cassandra.validateValues.tls" .) -}}
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{{- $messages := without $messages "" -}}
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{{- $message := join "\n" $messages -}}
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{{- if $message -}}
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{{- printf "\nVALUES VALIDATION:\n%s" $message | fail -}}
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{{- end -}}
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{{- end -}}
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{{/* Validate values of Cassandra - Number of seed nodes */}}
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{{- define "cassandra.validateValues.seedCount" -}}
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{{- $replicaCount := int .Values.replicaCount }}
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{{- $seedCount := int .Values.cluster.seedCount }}
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{{- if or (lt $seedCount 1) (gt $seedCount $replicaCount) }}
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cassandra: cluster.seedCount
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Number of seed nodes must be greater or equal than 1 and less or
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equal to `replicaCount`.
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{{- end -}}
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{{- end -}}
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{{/* Validate values of Cassandra - Tls enabled */}}
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{{- define "cassandra.validateValues.tls" -}}
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{{- if and (include "cassandra.tlsEncryption" .) (not .Values.tls.autoGenerated) (not .Values.tls.existingSecret) (not .Values.tls.certificatesSecret) }}
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cassandra: tls.enabled
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In order to enable TLS, you also need to provide
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an existing secret containing the Keystore and Truststore or
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enable auto-generated certificates.
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{{- end -}}
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{{- end -}}
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{{/* vim: set filetype=mustache: */}}
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{{/*
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Return the proper Commit Storage Class
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{{ include "cassandra.commitstorage.class" ( dict "persistence" .Values.path.to.the.persistence "global" $) }}
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*/}}
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{{- define "cassandra.commitstorage.class" -}}
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{{- $storageClass := .persistence.commitStorageClass -}}
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{{- if .global -}}
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{{- if .global.storageClass -}}
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{{- $storageClass = .global.commitStorageClass -}}
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{{- end -}}
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{{- end -}}
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{{- if $storageClass -}}
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{{- if (eq "-" $storageClass) -}}
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{{- printf "storageClassName: \"\"" -}}
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{{- else }}
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{{- printf "storageClassName: %s" $storageClass -}}
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{{- end -}}
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{{- end -}}
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{{- end -}}
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{{/*
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Return true if encryption via TLS for client connections should be configured
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*/}}
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{{- define "cassandra.client.tlsEncryption" -}}
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{{- if (or .Values.tls.clientEncryption .Values.cluster.clientEncryption) -}}
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{{- true -}}
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{{- end -}}
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{{- end -}}
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{{/*
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Return true if encryption via TLS for internode communication connections should be configured
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*/}}
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{{- define "cassandra.internode.tlsEncryption" -}}
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{{- if (ne .Values.tls.internodeEncryption "none") -}}
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{{- printf "%s" .Values.tls.internodeEncryption -}}
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{{- else if (ne .Values.cluster.internodeEncryption "none") -}}
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{{- printf "%s" .Values.cluster.internodeEncryption -}}
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{{- else -}}
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{{- printf "none" -}}
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{{- end -}}
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{{- end -}}
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{{/*
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Return true if encryption via TLS should be configured
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*/}}
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{{- define "cassandra.tlsEncryption" -}}
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{{- if or (include "cassandra.client.tlsEncryption" . ) ( ne "none" (include "cassandra.internode.tlsEncryption" . )) -}}
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{{- true -}}
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{{- end -}}
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{{- end -}}
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{{/*
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Convert memory to M
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Usage:
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{{ include "cassandra.memory.convertToM" (dict "value" "3Gi") }}
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*/}}
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{{- define "cassandra.memory.convertToM" -}}
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{{- $res := 0 -}}
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{{- if regexMatch "G" .value -}}
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{{- /* Multiply by 1000 if it is Gigabytes */ -}}
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{{- $res = regexFind "[0-9.]+" .value | float64 | mulf 1000 | int -}}
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{{- else -}}
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{{- /* Assume M for the rest, so simply extract the number and convert to int */ -}}
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{{- $res = regexFind "[0-9]+" .value | int -}}
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{{- end -}}
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{{- $res -}}
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{{- end -}}
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{{/*
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Return memory limit if resources or resourcesPreset has been set (in M)
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*/}}
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{{- define "cassandra.memory.getLimitInM" -}}
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{{- $res := "" -}}
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{{- if .Values.resources -}}
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{{- /* We need to go step by step to avoid nil pointer exceptions */ -}}
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{{- if .Values.resources.limits -}}
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{{- if .Values.resources.limits.memory -}}
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{{- $res = .Values.resources.limits.memory -}}
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{{- end -}}
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{{- end }}
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{{- else if (ne .Values.resourcesPreset "none") -}}
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{{- $preset := include "common.resources.preset" (dict "type" .Values.resourcesPreset) | fromYaml -}}
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{{- $res = $preset.limits.memory -}}
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{{- end -}}
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{{- if $res -}}
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{{- /* Convert to M */ -}}
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{{- include "cassandra.memory.convertToM" (dict "value" $res) -}}
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{{- end -}}
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{{- end -}}
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{{/*
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Calculate Max Heap Size based on the given values
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*/}}
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{{- define "cassandra.memory.calculateMaxHeapSize" -}}
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{{- if .Values.jvm.maxHeapSize -}}
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{{- /* Honor value explicitly set */ -}}
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{{- print .Values.jvm.maxHeapSize -}}
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{{- else -}}
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{{- /* Calculate based on resources set */ -}}
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{{- /* Reference: https://docs.oracle.com/javase/8/docs/technotes/guides/vm/gc-ergonomics.html */ -}}
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{{- $res := include "cassandra.memory.getLimitInM" . -}}
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{{- $res = div $res 4 | min 1000 -}}
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{{- printf "%vM" $res -}}
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{{- end -}}
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{{- end -}}
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{{/*
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Calculate New Heap Size based on the given values
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*/}}
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{{- define "cassandra.memory.calculateNewHeapSize" -}}
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{{- if .Values.jvm.newHeapSize -}}
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{{- /* Honor value explicitly set */ -}}
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{{- print .Values.jvm.newHeapSize -}}
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{{- else -}}
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{{- /* Calculate based on resources set */ -}}
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{{- /* Reference: https://docs.oracle.com/javase/8/docs/technotes/guides/vm/gc-ergonomics.html */ -}}
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{{- $res := include "cassandra.memory.getLimitInM" . -}}
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{{- $res = div $res 64 | max 256 -}}
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{{- printf "%vM" $res -}}
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{{- end -}}
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{{- end -}}
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{{/*
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Return the Cassandra TLS credentials secret
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*/}}
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{{- define "cassandra.tlsSecretName" -}}
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{{- $secretName := coalesce .Values.tls.existingSecret .Values.tls.tlsEncryptionSecretName -}}
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{{- if $secretName -}}
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{{- printf "%s" (tpl $secretName $) -}}
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{{- else -}}
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{{- printf "%s-crt" (include "common.names.fullname" .) | trunc 63 | trimSuffix "-" -}}
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{{- end -}}
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{{- end -}}
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{{/*
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Return true if a TLS credentials secret object should be created
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*/}}
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{{- define "cassandra.createTlsSecret" -}}
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{{- if and (include "cassandra.tlsEncryption" .) .Values.tls.autoGenerated (not .Values.tls.existingSecret) (not .Values.tls.tlsEncryptionSecretName) }}
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{{- true -}}
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{{- end -}}
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{{- end -}}
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{{/*
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Return true if a TLS credentials secret object should be created
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*/}}
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{{- define "cassandra.tlsPasswordsSecret" -}}
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{{- $secretName := coalesce .Values.tls.passwordsSecret .Values.tls.tlsEncryptionSecretName -}}
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{{- if $secretName -}}
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{{- printf "%s" (tpl $secretName $) -}}
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{{- else -}}
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{{- printf "%s-tls-pass" (include "common.names.fullname" .) | trunc 63 | trimSuffix "-" -}}
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{{- end -}}
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{{- end -}}
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{{/*
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Returns the available value for certain key in an existing secret (if it exists),
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otherwise it generates a random value.
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*/}}
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{{- define "getValueFromSecret" }}
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{{- $len := (default 16 .Length) | int -}}
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{{- $obj := (lookup "v1" "Secret" .Namespace .Name).data -}}
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{{- if $obj }}
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{{- index $obj .Key | b64dec -}}
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{{- else -}}
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{{- randAlphaNum $len -}}
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{{- end -}}
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{{- end }}
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{{- define "cassandra.password" -}}
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{{- if .Values.dbUser.password }}
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{{- .Values.dbUser.password }}
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{{- else if (not .Values.dbUser.forcePassword) }}
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{{- include "getValueFromSecret" (dict "Namespace" (include "common.names.namespace" .) "Name" (include "common.names.fullname" .) "Length" 10 "Key" "cassandra-password") -}}
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{{- else }}
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{{ required "A Cassandra Password is required!" .Values.dbUser.password }}
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{{- end }}
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{{- end -}}
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{{- define "cassandra.keystore.password" -}}
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{{- if .Values.tls.keystorePassword }}
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{{- .Values.tls.keystorePassword }}
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{{- else }}
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{{- include "getValueFromSecret" (dict "Namespace" (include "common.names.namespace" .) "Name" (printf "%s-%s" (include "common.names.fullname" .) "tls-pass" | trunc 63 | trimSuffix "-") "Length" 10 "Key" "keystore-password") -}}
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{{- end }}
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{{- end -}}
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{{- define "cassandra.truststore.password" -}}
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{{- if .Values.tls.truststorePassword }}
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{{- .Values.tls.truststorePassword }}
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{{- else }}
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{{- include "getValueFromSecret" (dict "Namespace" (include "common.names.namespace" .) "Name" (printf "%s-%s" (include "common.names.fullname" .) "tls-pass" | trunc 63 | trimSuffix "-") "Length" 10 "Key" "truststore-password") -}}
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{{- end }}
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{{- end -}}
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{{/*
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Get the metrics config map name.
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*/}}
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{{- define "cassandra.metricsConfConfigMap" -}}
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{{- printf "%s-metrics-conf" (include "common.names.fullname" . ) | trunc 63 | trimSuffix "-" -}}
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{{- end -}}
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{{/*
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Print warning if jvm memory not set
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*/}}
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{{- define "cassandra.warnings.jvm" -}}
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{{- if not .Values.jvm.maxHeapSize }}
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WARNING: JVM Max Heap Size not set in value jvm.maxHeapSize. When not set, the chart will calculate the following size:
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MIN(Memory Limit (if set) / 4, 1024M)
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{{- end }}
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{{- if not .Values.jvm.maxHeapSize }}
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WARNING: JVM New Heap Size not set in value jvm.newHeapSize. When not set, the chart will calculate the following size:
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MAX(Memory Limit (if set) / 64, 256M)
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{{- end }}
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{{- end -}}
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