From a889f826fd10b2104cb13337f21a96bd2859a4dc Mon Sep 17 00:00:00 2001
From: Tobias Persson <tobiaspn@axis.com>
Date: Thu, 21 Dec 2023 08:02:29 +0100
Subject: [PATCH] Adding an etcd cluster

---
 manifests/etcd/kustomization.yaml   |  5 +++
 manifests/etcd/service.yaml         | 35 ++++++++++++++++++++
 manifests/etcd/statefulset.yaml     | 50 +++++++++++++++++++++++++++++
 manifests/master/kustomization.yaml |  3 ++
 4 files changed, 93 insertions(+)
 create mode 100644 manifests/etcd/kustomization.yaml
 create mode 100644 manifests/etcd/service.yaml
 create mode 100644 manifests/etcd/statefulset.yaml

diff --git a/manifests/etcd/kustomization.yaml b/manifests/etcd/kustomization.yaml
new file mode 100644
index 00000000..9f5e013e
--- /dev/null
+++ b/manifests/etcd/kustomization.yaml
@@ -0,0 +1,5 @@
+apiVersion: kustomize.config.k8s.io/v1alpha1
+kind: Component
+resources:
+  - service.yaml
+  - statefulset.yaml
diff --git a/manifests/etcd/service.yaml b/manifests/etcd/service.yaml
new file mode 100644
index 00000000..a4ba7104
--- /dev/null
+++ b/manifests/etcd/service.yaml
@@ -0,0 +1,35 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: etcd-client
+  labels:
+    app.kubernetes.io/name: etcd
+    app.kubernetes.io/part-of: etos
+spec:
+  type: ClusterIP
+  ports:
+  - name: etcd-client
+    port: 2379
+    protocol: TCP
+    targetPort: 2379
+  selector:
+    app.kubernetes.io/name: etcd
+    app.kubernetes.io/part-of: etos
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: etcd
+  labels:
+    app.kubernetes.io/name: etcd
+    app.kubernetes.io/part-of: etos
+spec:
+  clusterIP: None
+  ports:
+  - port: 2379
+    name: client
+  - port: 2380
+    name: peer
+  selector:
+    app.kubernetes.io/name: etcd
+    app.kubernetes.io/part-of: etos
diff --git a/manifests/etcd/statefulset.yaml b/manifests/etcd/statefulset.yaml
new file mode 100644
index 00000000..e4452139
--- /dev/null
+++ b/manifests/etcd/statefulset.yaml
@@ -0,0 +1,50 @@
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: etcd
+  labels:
+    app.kubernetes.io/name: etcd
+    app.kubernetes.io/part-of: etos
+spec:
+  serviceName: etcd
+  replicas: 3
+  template:
+    metadata:
+      name: etcd
+      labels:
+        app.kubernetes.io/name: etcd
+        app.kubernetes.io/part-of: etos
+    spec:
+      containers:
+      - name: etcd
+        image: quay.io/coreos/etcd:latest
+        ports:
+        - containerPort: 2379
+          name: client
+        - containerPort: 2380
+          name: peer
+        volumeMounts:
+        - name: data
+          mountPath: /var/run/etcd
+        command:
+          - /bin/sh
+          - -c
+          - |
+            PEERS="etcd-0=http://etcd-0.etcd:2380,etcd-1=http://etcd-1.etcd:2380,etcd-2=http://etcd-2.etcd:2380"
+            exec etcd --name ${HOSTNAME} \
+              --listen-peer-urls http://0.0.0.0:2380 \
+              --listen-client-urls http://0.0.0.0:2379 \
+              --advertise-client-urls http://${HOSTNAME}.etcd:2379 \
+              --initial-advertise-peer-urls http://${HOSTNAME}:2380 \
+              --initial-cluster-token etcd-cluster-1 \
+              --initial-cluster ${PEERS} \
+              --initial-cluster-state new \
+              --data-dir /var/run/etcd/default.etcd
+  volumeClaimTemplates:
+  - metadata:
+      name: data
+    spec:
+      accessModes: [ "ReadWriteOnce" ]
+      resources:
+        requests:
+          storage: 1Gi
diff --git a/manifests/master/kustomization.yaml b/manifests/master/kustomization.yaml
index eeed41ac..8b9a5af2 100644
--- a/manifests/master/kustomization.yaml
+++ b/manifests/master/kustomization.yaml
@@ -5,3 +5,6 @@ resources:
   - github.com/eiffel-community/etos-environment-provider//manifests/base
   - github.com/eiffel-community/etos-suite-runner//manifests/base
   - github.com/eiffel-community/etos-suite-starter//manifests/base
+
+components:
+  - ../etcd