From 9bf49b956cb14beb7653ba162bed867fc36166a7 Mon Sep 17 00:00:00 2001
From: dvirlabs <dvirlabs@gmail.com>
Date: Wed, 25 Mar 2026 17:06:10 +0200
Subject: [PATCH] Add ttyd app

---
 argocd-apps/ttyd.yaml                         | 25 +++++
 charts/ttyd/Chart.yaml                        | 16 ++++
 charts/ttyd/templates/_helpers.tpl            | 62 ++++++++++++
 charts/ttyd/templates/clusterrole.yaml        | 94 +++++++++++++++++++
 charts/ttyd/templates/clusterrolebinding.yaml | 18 ++++
 charts/ttyd/templates/deployment.yaml         | 72 ++++++++++++++
 charts/ttyd/templates/ingress.yaml            | 35 +++++++
 charts/ttyd/templates/service.yaml            | 15 +++
 charts/ttyd/templates/serviceaccount.yaml     |  8 ++
 charts/ttyd/values.yaml                       | 54 +++++++++++
 manifests/ttyd/values.yaml                    | 48 ++++++++++
 11 files changed, 447 insertions(+)
 create mode 100644 argocd-apps/ttyd.yaml
 create mode 100644 charts/ttyd/Chart.yaml
 create mode 100644 charts/ttyd/templates/_helpers.tpl
 create mode 100644 charts/ttyd/templates/clusterrole.yaml
 create mode 100644 charts/ttyd/templates/clusterrolebinding.yaml
 create mode 100644 charts/ttyd/templates/deployment.yaml
 create mode 100644 charts/ttyd/templates/ingress.yaml
 create mode 100644 charts/ttyd/templates/service.yaml
 create mode 100644 charts/ttyd/templates/serviceaccount.yaml
 create mode 100644 charts/ttyd/values.yaml
 create mode 100644 manifests/ttyd/values.yaml

diff --git a/argocd-apps/ttyd.yaml b/argocd-apps/ttyd.yaml
new file mode 100644
index 0000000..9d15836
--- /dev/null
+++ b/argocd-apps/ttyd.yaml
@@ -0,0 +1,25 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: ttyd
+  namespace: argocd
+  labels:
+    env: infra
+spec:
+  project: infra
+  source:
+    repoURL: 'ssh://git@gitea-ssh.dev-tools.svc.cluster.local:2222/dvirlabs/infra.git'
+    targetRevision: HEAD
+    path: charts/ttyd
+    helm:
+      valueFiles:
+        - ../../manifests/ttyd/values.yaml
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: infra
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true
diff --git a/charts/ttyd/Chart.yaml b/charts/ttyd/Chart.yaml
new file mode 100644
index 0000000..5215edd
--- /dev/null
+++ b/charts/ttyd/Chart.yaml
@@ -0,0 +1,16 @@
+apiVersion: v2
+name: ttyd
+description: Browser-based terminal via ttyd, managed by ArgoCD
+type: application
+version: 0.1.0
+appVersion: "latest"
+keywords:
+  - terminal
+  - ttyd
+  - kubectl
+  - web-terminal
+maintainers:
+  - name: dvirlabs
+home: https://github.com/tsl0922/ttyd
+sources:
+  - https://github.com/tsl0922/ttyd
diff --git a/charts/ttyd/templates/_helpers.tpl b/charts/ttyd/templates/_helpers.tpl
new file mode 100644
index 0000000..0b2493d
--- /dev/null
+++ b/charts/ttyd/templates/_helpers.tpl
@@ -0,0 +1,62 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "ttyd.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 "ttyd.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 "ttyd.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "ttyd.labels" -}}
+helm.sh/chart: {{ include "ttyd.chart" . }}
+{{ include "ttyd.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "ttyd.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "ttyd.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "ttyd.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "ttyd.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}
diff --git a/charts/ttyd/templates/clusterrole.yaml b/charts/ttyd/templates/clusterrole.yaml
new file mode 100644
index 0000000..b85579d
--- /dev/null
+++ b/charts/ttyd/templates/clusterrole.yaml
@@ -0,0 +1,94 @@
+{{- if .Values.serviceAccount.create -}}
+# WARNING: This ClusterRole grants broad read + exec access across the cluster.
+# It is intentionally permissive for lab/troubleshooting use.
+# Review and restrict these permissions before using in a production environment.
+#
+# Future auth integration note:
+# When oauth2-proxy is added in front of ttyd, consider scoping this role
+# further to match the actual user's identity or group permissions.
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: {{ include "ttyd.fullname" . }}
+  labels:
+    {{- include "ttyd.labels" . | nindent 4 }}
+rules:
+  # Core workload resources — read + basic management for kubectl troubleshooting
+  - apiGroups: [""]
+    resources:
+      - pods
+      - pods/log
+      - services
+      - endpoints
+      - configmaps
+      - secrets        # WARNING: includes secret read access; tighten in production
+      - events
+      - namespaces
+      - nodes
+      - persistentvolumeclaims
+      - persistentvolumes
+      - replicationcontrollers
+      - serviceaccounts
+    verbs: ["get", "list", "watch"]
+
+  # Pod exec and log streaming (needed for `kubectl exec` and `kubectl logs -f`)
+  - apiGroups: [""]
+    resources:
+      - pods/exec
+      - pods/attach
+      - pods/portforward
+    verbs: ["create"]
+
+  # Pod and service management (basic ops for lab use)
+  - apiGroups: [""]
+    resources:
+      - pods
+      - services
+      - configmaps
+    verbs: ["delete", "patch", "update"]
+
+  # Apps resources
+  - apiGroups: ["apps"]
+    resources:
+      - deployments
+      - replicasets
+      - statefulsets
+      - daemonsets
+    verbs: ["get", "list", "watch", "patch", "delete"]
+
+  # Batch resources
+  - apiGroups: ["batch"]
+    resources:
+      - jobs
+      - cronjobs
+    verbs: ["get", "list", "watch", "delete"]
+
+  # Networking resources
+  - apiGroups: ["networking.k8s.io"]
+    resources:
+      - ingresses
+      - ingressclasses
+    verbs: ["get", "list", "watch"]
+
+  # RBAC resources (read-only, for inspection purposes)
+  - apiGroups: ["rbac.authorization.k8s.io"]
+    resources:
+      - roles
+      - rolebindings
+      - clusterroles
+      - clusterrolebindings
+    verbs: ["get", "list", "watch"]
+
+  # Storage classes (read-only)
+  - apiGroups: ["storage.k8s.io"]
+    resources:
+      - storageclasses
+    verbs: ["get", "list", "watch"]
+
+  # Metrics (optional, useful for `kubectl top`)
+  - apiGroups: ["metrics.k8s.io"]
+    resources:
+      - pods
+      - nodes
+    verbs: ["get", "list", "watch"]
+{{- end }}
diff --git a/charts/ttyd/templates/clusterrolebinding.yaml b/charts/ttyd/templates/clusterrolebinding.yaml
new file mode 100644
index 0000000..8fad5e5
--- /dev/null
+++ b/charts/ttyd/templates/clusterrolebinding.yaml
@@ -0,0 +1,18 @@
+{{- if .Values.serviceAccount.create -}}
+# Binds the ttyd ClusterRole to its dedicated ServiceAccount.
+# WARNING: This grants cluster-wide permissions. See clusterrole.yaml for details.
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: {{ include "ttyd.fullname" . }}
+  labels:
+    {{- include "ttyd.labels" . | nindent 4 }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: {{ include "ttyd.fullname" . }}
+subjects:
+  - kind: ServiceAccount
+    name: {{ include "ttyd.serviceAccountName" . }}
+    namespace: {{ .Release.Namespace }}
+{{- end }}
diff --git a/charts/ttyd/templates/deployment.yaml b/charts/ttyd/templates/deployment.yaml
new file mode 100644
index 0000000..d4773a3
--- /dev/null
+++ b/charts/ttyd/templates/deployment.yaml
@@ -0,0 +1,72 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "ttyd.fullname" . }}
+  labels:
+    {{- include "ttyd.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "ttyd.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "ttyd.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "ttyd.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          # ttyd args: bind port, then pass the shell command to execute in the browser terminal.
+          # To use kubectl, switch image.repository to a custom image that bundles ttyd + kubectl.
+          args:
+            - "--port={{ .Values.ttyd.port }}"
+            - {{ .Values.ttyd.command | quote }}
+          ports:
+            - name: http
+              containerPort: {{ .Values.ttyd.port }}
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /
+              port: http
+            initialDelaySeconds: 10
+            periodSeconds: 20
+            timeoutSeconds: 5
+            failureThreshold: 3
+          readinessProbe:
+            httpGet:
+              path: /
+              port: http
+            initialDelaySeconds: 5
+            periodSeconds: 10
+            timeoutSeconds: 3
+            failureThreshold: 3
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+      {{- 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/charts/ttyd/templates/ingress.yaml b/charts/ttyd/templates/ingress.yaml
new file mode 100644
index 0000000..fb6e814
--- /dev/null
+++ b/charts/ttyd/templates/ingress.yaml
@@ -0,0 +1,35 @@
+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "ttyd.fullname" . -}}
+{{- $svcPort := .Values.service.port -}}
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    {{- include "ttyd.labels" . | nindent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- if .Values.ingress.className }}
+  ingressClassName: {{ .Values.ingress.className }}
+  {{- end }}
+  {{- if .Values.ingress.tls.enabled }}
+  tls:
+    - hosts:
+        - {{ .Values.ingress.host | quote }}
+      secretName: {{ .Values.ingress.tls.secretName }}
+  {{- end }}
+  rules:
+    - host: {{ .Values.ingress.host | quote }}
+      http:
+        paths:
+          - path: {{ .Values.ingress.path }}
+            pathType: {{ .Values.ingress.pathType }}
+            backend:
+              service:
+                name: {{ $fullName }}
+                port:
+                  number: {{ $svcPort }}
+{{- end }}
diff --git a/charts/ttyd/templates/service.yaml b/charts/ttyd/templates/service.yaml
new file mode 100644
index 0000000..1b6013f
--- /dev/null
+++ b/charts/ttyd/templates/service.yaml
@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "ttyd.fullname" . }}
+  labels:
+    {{- include "ttyd.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    {{- include "ttyd.selectorLabels" . | nindent 4 }}
diff --git a/charts/ttyd/templates/serviceaccount.yaml b/charts/ttyd/templates/serviceaccount.yaml
new file mode 100644
index 0000000..49096c0
--- /dev/null
+++ b/charts/ttyd/templates/serviceaccount.yaml
@@ -0,0 +1,8 @@
+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "ttyd.serviceAccountName" . }}
+  labels:
+    {{- include "ttyd.labels" . | nindent 4 }}
+{{- end }}
diff --git a/charts/ttyd/values.yaml b/charts/ttyd/values.yaml
new file mode 100644
index 0000000..6407630
--- /dev/null
+++ b/charts/ttyd/values.yaml
@@ -0,0 +1,54 @@
+replicaCount: 1
+
+image:
+  repository: tsl0922/ttyd
+  tag: latest
+  pullPolicy: IfNotPresent
+
+nameOverride: ""
+fullnameOverride: ""
+
+serviceAccount:
+  create: true
+  name: ""
+
+service:
+  type: ClusterIP
+  port: 7681
+
+ttyd:
+  port: 7681
+  # Shell command passed to ttyd. Switch to a custom image with kubectl for full functionality.
+  command: "/bin/sh"
+
+ingress:
+  enabled: true
+  className: traefik
+  annotations:
+    traefik.ingress.kubernetes.io/router.entrypoints: websecure
+  host: kctl.dvirlabs.com
+  path: /
+  pathType: Prefix
+  tls:
+    enabled: true
+    secretName: tls-ttyd-ingress
+
+resources:
+  requests:
+    cpu: 50m
+    memory: 64Mi
+  limits:
+    cpu: 200m
+    memory: 128Mi
+
+podAnnotations: {}
+
+podSecurityContext: {}
+
+securityContext: {}
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}
diff --git a/manifests/ttyd/values.yaml b/manifests/ttyd/values.yaml
new file mode 100644
index 0000000..2bea44b
--- /dev/null
+++ b/manifests/ttyd/values.yaml
@@ -0,0 +1,48 @@
+# ttyd environment-specific values
+# Overrides charts/ttyd/values.yaml defaults
+
+replicaCount: 1
+
+image:
+  # Switch to a custom image that bundles ttyd + kubectl for full kubectl support.
+  # Example: repository: registry.dvirlabs.com/ttyd-kubectl
+  repository: tsl0922/ttyd
+  tag: latest
+  pullPolicy: IfNotPresent
+
+serviceAccount:
+  create: true
+  name: ""
+
+service:
+  port: 7681
+
+ttyd:
+  port: 7681
+  # Shell to launch in the browser terminal.
+  # Change to /bin/bash if using a custom image that includes bash + kubectl.
+  command: "/bin/sh"
+
+ingress:
+  enabled: true
+  className: traefik
+  annotations:
+    traefik.ingress.kubernetes.io/router.entrypoints: websecure
+  host: kctl.dvirlabs.com
+  path: /
+  pathType: Prefix
+  tls:
+    enabled: true
+    secretName: tls-ttyd-ingress
+
+resources:
+  requests:
+    cpu: 50m
+    memory: 64Mi
+  limits:
+    cpu: 200m
+    memory: 128Mi
+
+nodeSelector: {}
+tolerations: []
+affinity: {}