Rl tigerbeetle helm chart

.prettierignore

@@ -8,4 +8,5 @@ pnpm-lock.yaml
 *.svg
 Dockerfile
 .gitignore
-.prettierignore
+.prettierignore
+infrastructure/helm/**

infrastructure/helm/tigerbeetle/.helmignore

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

infrastructure/helm/tigerbeetle/Chart.yaml

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+apiVersion: v2
+name: tigerbeetle
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.0.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: '0.0.0'

infrastructure/helm/tigerbeetle/README.md

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+notes on tigerbeetle pod allocation:
+
+The node pool for the tigerbeetle pods is created by terraform. nodes must _already exist_
+before applying the helm chart, because if the persistent volumes get scheduled on a single
+node, the application pods will continue to be scheduled on that node even if other nodes
+become available.
+
+The persistent [disk types](https://cloud.google.com/compute/docs/disks/performance#regional-persistent-disks)
+constrain I/O performance. There are several choices to make:
+
+Zonal persistent disks vs regional persistent disks:
+
+The [persistent volumes allocated in k8s in GKE](https://kubernetes.io/docs/concepts/storage/storage-classes/#gce-pd) 
+are always AFAICT [networked](https://cloud.google.com/kubernetes-engine/docs/concepts/persistent-volumes), not local
+to the node. The downside of this is the access times; the upside is that they can be [regional](https://cloud.google.com/compute/docs/disks/#repds)
+and mirrored across two zones. I think that our best option is to use regional SSD PVs, but there's a [chart](https://cloud.google.com/compute/docs/disks/performance#zonal-persistent-disks)
+comparing the performance. Weirdly, google's docs [elsewhere](https://cloud.google.com/compute/docs/disks) state that write
+performance is less-good on regional disks, but that isn't reflected in the published performance chart.

infrastructure/helm/tigerbeetle/templates/_helpers.tpl

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

infrastructure/helm/tigerbeetle/templates/configmap.nginx.yaml

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+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ .Chart.Name }}-nginx-proxy
+  namespace: {{ .Release.Namespace | quote }}
+  labels: 
+    {{- include "tigerbeetle.labels" . | nindent 4 }}
+data:
+  # property-like keys; each key maps to a simple value
+  nginx-prestart.sh: |
+    #!/bin/sh
+    set -ex; 
+    DNS_SERVER=$(cat /etc/resolv.conf |grep -i '^nameserver'|head -n1|cut -d ' ' -f2)
+    echo $DNS_SERVER
+    config=$(cat << EOF
+    events {}
+    stream {
+
+      {{- range ( untilStep 0 ( .Values.statefulset.replicas | int) 1 ) }}
+        server {
+            listen     {{ ( add 3000 . ) }};
+            resolver $DNS_SERVER;
+            set \$backend {{ $.Chart.Name }}-{{ . }}.{{ $.Chart.Name }}.{{ $.Release.Namespace }}.svc.cluster.local:4242;
+            proxy_pass \$backend;
+        }
+      {{- end }}
+    }
+    EOF
+    )
+    echo $config
+    echo $config > /etc/nginx/nginx.conf 

infrastructure/helm/tigerbeetle/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "tigerbeetle.fullname" . }}
+  namespace: {{ .Release.Namespace | quote }}
+  labels:
+    {{- include "tigerbeetle.labels" . | nindent 4 }}
+spec:
+  clusterIP: None
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: 4242
+      protocol: TCP
+      name: http
+  selector: {{- include "tigerbeetle.selectorLabels" . | nindent 4 }}

infrastructure/helm/tigerbeetle/templates/serviceaccount.yaml

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+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "tigerbeetle.serviceAccountName" . }}
+  namespace: {{ .Release.Namespace | quote }}
+  labels:
+    {{- include "tigerbeetle.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}