From f7fb76d23089f2b0a2eedb1e860bd53ca1be50d5 Mon Sep 17 00:00:00 2001
From: Martyn Ranyard <m@rtyn.berlin>
Date: Thu, 26 Oct 2023 21:30:12 +0200
Subject: [PATCH] Let's try something that needs a secret

Signed-off-by: Martyn Ranyard <m@rtyn.berlin>
---
 apps-helm/sshtunnel/templates/_helpers.tpl    | 62 +++++++++++++++++
 apps-helm/sshtunnel/templates/deployment.yaml | 67 +++++++++++++++++++
 .../templates/secretsProviderClass.yaml       | 10 +++
 3 files changed, 139 insertions(+)
 create mode 100644 apps-helm/sshtunnel/templates/_helpers.tpl
 create mode 100644 apps-helm/sshtunnel/templates/deployment.yaml
 create mode 100644 apps-helm/sshtunnel/templates/secretsProviderClass.yaml

diff --git a/apps-helm/sshtunnel/templates/_helpers.tpl b/apps-helm/sshtunnel/templates/_helpers.tpl
new file mode 100644
index 0000000..21ab270
--- /dev/null
+++ b/apps-helm/sshtunnel/templates/_helpers.tpl
@@ -0,0 +1,62 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "sshtunnel.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 "sshtunnel.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 "sshtunnel.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "sshtunnel.labels" -}}
+helm.sh/chart: {{ include "sshtunnel.chart" . }}
+{{ include "sshtunnel.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "sshtunnel.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "sshtunnel.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "sshtunnel.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "sshtunnel.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}
diff --git a/apps-helm/sshtunnel/templates/deployment.yaml b/apps-helm/sshtunnel/templates/deployment.yaml
new file mode 100644
index 0000000..5e210f0
--- /dev/null
+++ b/apps-helm/sshtunnel/templates/deployment.yaml
@@ -0,0 +1,67 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "sshtunnel.fullname" . }}
+  labels:
+    {{- include "sshtunnel.labels" . | nindent 4 }}
+spec:
+  {{- if not .Values.autoscaling.enabled }}
+  replicas: {{ .Values.replicaCount }}
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "sshtunnel.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      annotations:
+      {{- with .Values.podAnnotations }}
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+        checksum/secret: {{ include (print $.Template.BasePath "/secret.yaml") . | sha256sum }}
+      labels:
+        {{- include "sshtunnel.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          command:
+          - /bin/sh
+          - -c
+          - cp /keyfile/autossh /tmp/; chmod 600 /tmp/autossh; autossh -M0 {{.Values.tunnel.user}}@{{.Values.tunnel.sshHost}} -i /tmp/autossh
+            {{- range .Values.tunnel.sshOptions}} {{.}} {{end}}
+            {{- range .Values.tunnel.ports}} -R{{.bindIP}}:{{.source}}:{{.destsvc}}.{{.destns}}.svc.cluster.local.:{{.dest}} {{end}}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - name: http
+              containerPort: 80
+              protocol: TCP
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          volumeMounts:
+          - mountPath: /keyfile
+            name: keyfile
+      volumes:
+      - name: keyfile
+        secret:
+          defaultMode: 256
+          secretName: {{ .Chart.Name }}-keyfile
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
diff --git a/apps-helm/sshtunnel/templates/secretsProviderClass.yaml b/apps-helm/sshtunnel/templates/secretsProviderClass.yaml
new file mode 100644
index 0000000..43bac56
--- /dev/null
+++ b/apps-helm/sshtunnel/templates/secretsProviderClass.yaml
@@ -0,0 +1,10 @@
+apiVersion: secrets-store.csi.x-k8s.io/v1
+kind: SecretProviderClass
+metadata:
+  name: app-secrets
+spec:
+  provider: 1password
+  parameters:
+    secrets: |
+      - resourceName: "vaults/3oh5jxmxvqvpuimu2lbuajtizi/allitems/gd24dzcpub5vmuscsvavnyu6cm/private key"
+        path: "keyfile"