Feature/sandbox k8s manifest (#30)

* Add kubernetes manifest

Signed-off-by: S-mishina <[email protected]>

* fix Kubernetes deeployment image tag & Add README.md

Signed-off-by: S-mishina <[email protected]>

* fix README.md

Signed-off-by: S-mishina <[email protected]>

---------

Signed-off-by: S-mishina <[email protected]>

README.md

@@ -4,11 +4,7 @@ This is a mock server used to verify the operation of service mesh tools. Servic
 
 ## usage rules
 
-* docker
-
-```:terminal
-docker run -p 8080:8080 ghcr.io/s-mishina/flexiblemockserver:latest
-```
+[usage rules README](./sample_manifest/README.md)
 
 ## Example
 

sample_manifest/README.md

@@ -0,0 +1,103 @@
+# intro
+
+## Docker
+
+```:terminal
+docker run -p 8080:8080 ghcr.io/s-mishina/flexiblemockserver:latest
+```
+
+Currently, it will not work unless the custom rule file exists.
+
+## Docker-Compose
+
+## Kubernetes
+
+To use flexiblemockserver on Kubernetes, please follow the steps below.
+This document describes how to use [kind](https://kind.sigs.k8s.io/).
+
+### step 1
+
+Create a cluster using kind.
+
+sample command
+
+```:terminal
+flexiblemockserver/sample_manifest/kubernetes(ap-northeast-1)
+❯ ls
+cluster.yaml		flexiblemockserver
+```
+
+```:terminal
+❯ kind create cluster -n sandbox-test --config cluster.yaml
+Creating cluster "sandbox-test" ...
+ ✓ Ensuring node image (kindest/node:v1.27.3) 🖼
+ ✓ Preparing nodes 📦 📦 📦 📦
+ ✓ Writing configuration 📜
+ ✓ Starting control-plane 🕹️
+ ✓ Installing CNI 🔌
+ ✓ Installing StorageClass 💾
+ ✓ Joining worker nodes 🚜
+Set kubectl context to "kind-sandbox-test"
+You can now use your cluster with:
+
+kubectl cluster-info --context kind-sandbox-test
+
+Have a question, bug, or feature request? Let us know! https://kind.sigs.k8s.io/#community 🙂
+```
+
+### step 2
+
+Please import the required IMAGE onto kind.
+
+sample command
+
+```:terminal
+❯ docker pull ghcr.io/s-mishina/flexiblemockserver:latest
+```
+
+```:terminal
+❯ kind load docker-image ghcr.io/s-mishina/flexiblemockserver:latest ghcr.io/s-mishina/flexiblemockserver:latest -n sandbox-test
+Image: "ghcr.io/s-mishina/flexiblemockserver:latest" with ID "sha256:96b36be4d13881b2567a42662dd3a613649740348d0a360d0b686b7eb4c7798e" not yet present on node "sandbox-test-worker2", loading...
+Image: "ghcr.io/s-mishina/flexiblemockserver:latest" with ID "sha256:96b36be4d13881b2567a42662dd3a613649740348d0a360d0b686b7eb4c7798e" not yet present on node "sandbox-test-worker3", loading...
+Image: "ghcr.io/s-mishina/flexiblemockserver:latest" with ID "sha256:96b36be4d13881b2567a42662dd3a613649740348d0a360d0b686b7eb4c7798e" not yet present on node "sandbox-test-control-plane", loading...
+Image: "ghcr.io/s-mishina/flexiblemockserver:latest" with ID "sha256:96b36be4d13881b2567a42662dd3a613649740348d0a360d0b686b7eb4c7798e" not yet present on node "sandbox-test-worker", loading...
+```
+
+### step 3
+
+Finally, let's apply the manifest!
+
+```:terminal
+[kind-sandbox-test|default] :ctx
+[arm64]⚡️
+flexiblemockserver/sample_manifest/kubernetes on  feature/sandbox-k8s-manifest
+❯ ls
+cluster.yaml		flexiblemockserver
+
+[kind-sandbox-test|default] :ctx
+[arm64]⚡️
+flexiblemockserver/sample_manifest/kubernetes on  feature/sandbox-k8s-manifest
+
+❯ kubectl apply -k flexiblemockserver
+namespace/mockserver created
+configmap/custom-rule created
+configmap/response created
+service/flexiblemockserver created
+deployment.apps/flexiblemockserver created
+```
+
+### as necessary
+
+This document is intended to confirm the operation of ServiceMesh and Kuberneres.
+
+The following custom operator
+
+#### Reloader
+
+[document](https://github.com/stakater/Reloader?tab=readme-ov-file#vanilla-manifests)
+
+#### istio
+
+[document](https://istio.io/latest/docs/setup/install/istioctl/)
+
+

sample_manifest/kubernetes/cluster.yaml

@@ -0,0 +1,8 @@
+# cluster.yaml
+kind: Cluster
+apiVersion: kind.x-k8s.io/v1alpha4
+nodes:
+- role: control-plane
+- role: worker
+- role: worker
+- role: worker

sample_manifest/kubernetes/flexiblemockserver/configmap.yaml

@@ -0,0 +1,42 @@
+# configmap
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: custom-rule
+  namespace: mockserver
+  annotations:
+    reloader.stakater.com/match: "true"
+data:
+  custom_rule.yaml: |
+    custom_rule:
+    - name: "Custom Rule"
+      rule:
+          path: "/example"
+          method: "GET"
+          status_code: 200
+          response_body_path: "config/json/response1.json"
+    - name: "liveness"
+      rule:
+          path: "/liveness"
+          method: "GET"
+          status_code: 200
+          response_body_path: "config/json/response1.json"
+    - name: "readiness"
+      rule:
+          path: "/readiness"
+          method: "GET"
+          status_code: 200
+          response_body_path: "config/json/response1.json"
+# ref: https://github.com/S-mishina/flexiblemockserver?tab=readme-ov-file#custom-rule
+---
+# configmap
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: response
+  namespace: test
+  annotations:
+    reloader.stakater.com/match: "true"
+data:
+  response1.json: |
+    {"response","Hello, World!"}

sample_manifest/kubernetes/flexiblemockserver/deployment.yaml

@@ -0,0 +1,59 @@
+# deployment.yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: flexiblemockserver
+  namespace: mockserver
+  annotations:
+    configmap.reloader.stakater.com/reload: "*"
+spec:
+  strategy:
+    rollingUpdate:
+      maxSurge: 25%
+      maxUnavailable: 0
+  replicas: 4
+  selector:
+    matchLabels:
+      app: flexiblemockserver
+  template:
+    metadata:
+      labels:
+        app: flexiblemockserver
+        istio-injection: enabled
+        test: "test4"
+
+    spec:
+      containers:
+      - name: flexiblemockserver
+        image: ghcr.io/s-mishina/flexiblemockserver:latest
+        imagePullPolicy: IfNotPresent
+        ports:
+        - containerPort: 8080
+        env:
+        - name: CUSTOM_RULE_YAML_FILE
+          value: config/custom_rule.yaml
+        volumeMounts:
+        - name: custom-rule
+          mountPath: /config
+        - name: response
+          mountPath: /config/json
+      volumes:
+      - name: custom-rule
+        configMap:
+          name: custom-rule
+      - name: response
+        configMap:
+          name: response
+      # TODO: Set if Liveness rediness is required.
+      # readinessProbe:
+      #   httpGet:
+      #     path: /readiness
+      #     port: 8080
+      #   periodSeconds: 1
+      #   failureThreshold: 1
+      # livenessProbe:
+      #   httpGet:
+      #     path: /liveness
+      #     port: 8080
+      #   periodSeconds: 1
+      #   failureThreshold: 1

sample_manifest/kubernetes/flexiblemockserver/kustomization.yaml

@@ -0,0 +1,9 @@
+# kustmize.yaml
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: mockserver
+resources:
+- deployment.yaml
+- configmap.yaml
+- service.yaml
+- namespace.yaml

sample_manifest/kubernetes/flexiblemockserver/namespace.yaml

@@ -0,0 +1,7 @@
+# namespace.yaml
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: mockserver
+  labels:
+    istio-injection: enabled

sample_manifest/kubernetes/flexiblemockserver/service.yaml

@@ -0,0 +1,13 @@
+# service.yaml
+apiVersion: v1
+kind: Service
+metadata:
+  name: flexiblemockserver
+  namespace: mockserver
+spec:
+  selector:
+    app: flexiblemockserver
+  ports:
+    - protocol: TCP
+      port: 80
+      targetPort: 8080