From bd2e69abbcb250d3a7f5f9d25d387c94283c3ac9 Mon Sep 17 00:00:00 2001
From: Wei He <hewei.com@gmail.com>
Date: Sun, 22 May 2022 21:02:04 +0800
Subject: [PATCH] etherpad start/stop cronjobs

---
 jitsi/Chart.yaml                              |  2 +-
 .../templates/etherpad/deployment.yaml        |  2 +-
 jitsi/charts/jitsi-meet/values.yaml           |  1 +
 .../cluster-role-binding.yaml                 | 15 ++++++
 .../etherpad-schedule/cluster-role.yaml       | 18 +++++++
 .../templates/etherpad-schedule/cronjob.yaml  | 54 +++++++++++++++++++
 .../etherpad-schedule/serviceacount.yaml      |  7 +++
 jitsi/values.yaml                             |  6 ++-
 8 files changed, 102 insertions(+), 3 deletions(-)
 create mode 100644 jitsi/templates/etherpad-schedule/cluster-role-binding.yaml
 create mode 100644 jitsi/templates/etherpad-schedule/cluster-role.yaml
 create mode 100644 jitsi/templates/etherpad-schedule/cronjob.yaml
 create mode 100644 jitsi/templates/etherpad-schedule/serviceacount.yaml

diff --git a/jitsi/Chart.yaml b/jitsi/Chart.yaml
index 830fc6a..7aa0892 100644
--- a/jitsi/Chart.yaml
+++ b/jitsi/Chart.yaml
@@ -1,7 +1,7 @@
 ---
 apiVersion: v2
 name: jitsi-deploy
-version: 0.1.3
+version: 0.1.4
 dependencies:
   - name: jitsi-meet
     version: "1.2.2+etherpad.1"
diff --git a/jitsi/charts/jitsi-meet/templates/etherpad/deployment.yaml b/jitsi/charts/jitsi-meet/templates/etherpad/deployment.yaml
index ff84f5a..45c879f 100644
--- a/jitsi/charts/jitsi-meet/templates/etherpad/deployment.yaml
+++ b/jitsi/charts/jitsi-meet/templates/etherpad/deployment.yaml
@@ -10,7 +10,7 @@ metadata:
     {{ toYaml . | nindent 4 }}
   {{- end }}
 spec:
-  replicas: 1
+  replicas: {{ .Values.etherpad.replicaCount }}
   selector:
     matchLabels:
       {{- include "jitsi-meet.etherpad.selectorLabels" . | nindent 6 }}
diff --git a/jitsi/charts/jitsi-meet/values.yaml b/jitsi/charts/jitsi-meet/values.yaml
index 8c14dc8..ede8d4b 100644
--- a/jitsi/charts/jitsi-meet/values.yaml
+++ b/jitsi/charts/jitsi-meet/values.yaml
@@ -254,6 +254,7 @@ jibri:
 
 etherpad:
   enabled: false
+  replicaCount: 1
 
   image:
     repository: etherpad/etherpad
diff --git a/jitsi/templates/etherpad-schedule/cluster-role-binding.yaml b/jitsi/templates/etherpad-schedule/cluster-role-binding.yaml
new file mode 100644
index 0000000..f40f20f
--- /dev/null
+++ b/jitsi/templates/etherpad-schedule/cluster-role-binding.yaml
@@ -0,0 +1,15 @@
+{{- if .Values.etherpad.scheduled }}
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: {{ .Release.Name }}-etherpad-scale-role-binding
+subjects:
+  - namespace: {{ .Release.Namespace }}
+    kind: ServiceAccount
+    name: {{ .Release.Name }}-etherpad-startstop-account
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: {{ .Release.Name }}-etherpad-scale-role
+{{- end }}
diff --git a/jitsi/templates/etherpad-schedule/cluster-role.yaml b/jitsi/templates/etherpad-schedule/cluster-role.yaml
new file mode 100644
index 0000000..12117db
--- /dev/null
+++ b/jitsi/templates/etherpad-schedule/cluster-role.yaml
@@ -0,0 +1,18 @@
+{{- if .Values.etherpad.scheduled }}
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: {{ .Release.Name }}-etherpad-scale-role
+rules:
+  - apiGroups:
+      - apps
+    resources:
+      - deployments
+    verbs: [ "get" ]
+  - apiGroups:
+      - apps
+    resources:
+      - deployments/scale
+    verbs: [ "patch" ]
+{{- end }}
diff --git a/jitsi/templates/etherpad-schedule/cronjob.yaml b/jitsi/templates/etherpad-schedule/cronjob.yaml
new file mode 100644
index 0000000..d68e49b
--- /dev/null
+++ b/jitsi/templates/etherpad-schedule/cronjob.yaml
@@ -0,0 +1,54 @@
+{{- if .Values.etherpad.scheduled }}
+---
+apiVersion: batch/v1
+kind: CronJob
+metadata:
+  name: {{ .Release.Name }}-start-etherpad
+spec:
+  schedule: {{ .Values.etherpad.schedules.start }}
+  successfulJobsHistoryLimit: 1
+  failedJobsHistoryLimit: 1
+  jobTemplate:
+    spec:
+      template:
+        spec:
+          restartPolicy: OnFailure
+          containers:
+          - name: kubectl
+            image: bitnami/kubectl:1.23
+            imagePullPolicy: IfNotPresent
+            args:
+              - -n
+              - {{ .Release.Namespace }}
+              - scale
+              - deployment
+              - {{ .Release.Name }}-jitsi-meet-etherpad
+              - --replicas=1
+          serviceAccountName: {{ .Release.Name }}-etherpad-startstop-account
+---
+apiVersion: batch/v1
+kind: CronJob
+metadata:
+  name: {{ .Release.Name }}-stop-etherpad
+spec:
+  schedule: {{ .Values.etherpad.schedules.stop }}
+  successfulJobsHistoryLimit: 1
+  failedJobsHistoryLimit: 1
+  jobTemplate:
+    spec:
+      template:
+        spec:
+          restartPolicy: OnFailure
+          containers:
+          - name: kubectl
+            image: bitnami/kubectl:1.23
+            imagePullPolicy: IfNotPresent
+            args:
+              - -n
+              - {{ .Release.Namespace }}
+              - scale
+              - deployment
+              - {{ .Release.Name }}-jitsi-meet-etherpad
+              - --replicas=0
+          serviceAccountName: {{ .Release.Name }}-etherpad-startstop-account
+{{- end }}
diff --git a/jitsi/templates/etherpad-schedule/serviceacount.yaml b/jitsi/templates/etherpad-schedule/serviceacount.yaml
new file mode 100644
index 0000000..73f6c17
--- /dev/null
+++ b/jitsi/templates/etherpad-schedule/serviceacount.yaml
@@ -0,0 +1,7 @@
+{{- if .Values.etherpad.scheduled }}
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ .Release.Name }}-etherpad-startstop-account
+{{- end }}
diff --git a/jitsi/values.yaml b/jitsi/values.yaml
index ab28f7b..d1a73f0 100755
--- a/jitsi/values.yaml
+++ b/jitsi/values.yaml
@@ -4,7 +4,10 @@ certResolver: le-staging
 fqdn: ""
 
 etherpad:
-  resources: {}
+  scheduled: false
+  schedules:
+    start: ""
+    stop: ""
 
 jitsi-meet:
   publicURL: ""
@@ -42,3 +45,4 @@ jitsi-meet:
 
   etherpad:
     enabled: true
+    replicaCount: 1