wip: oci

2026-01-28 10:28:13 +08:00
parent 507a67e455
commit 3ee0c9c098
29 changed files with 2852 additions and 0 deletions
--- a/example/redis-cache/k8s/app.yaml
+++ b/example/redis-cache/k8s/app.yaml
@@ -0,0 +1,59 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: redis-cache-demo
+  namespace: redis-demo
+  labels:
+    app: redis-cache-demo
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: redis-cache-demo
+  template:
+    metadata:
+      labels:
+        app: redis-cache-demo
+    spec:
+      containers:
+      - name: app
+        image: redis-cache-demo:latest
+        ports:
+        - containerPort: 8080
+        env:
+        - name: PORT
+          value: "8080"
+        - name: REDIS_ADDR
+          value: "redis-headless.redis-demo.svc.cluster.local:6379"
+        - name: REDIS_PASSWORD
+          value: ""
+        - name: REDIS_RECONNECT
+          value: "true"
+        - name: REDIS_RECONNECT_INTERVAL
+          value: "10s"
+        livenessProbe:
+          httpGet:
+            path: /health
+            port: 8080
+          initialDelaySeconds: 10
+          periodSeconds: 30
+        readinessProbe:
+          httpGet:
+            path: /health
+            port: 8080
+          initialDelaySeconds: 5
+          periodSeconds: 10
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: redis-cache-demo
+  namespace: redis-demo
+spec:
+  type: LoadBalancer
+  ports:
+  - port: 80
+    targetPort: 8080
+    name: http
+  selector:
+    app: redis-cache-demo
--- a/example/redis-cache/k8s/discovery-test.yaml
+++ b/example/redis-cache/k8s/discovery-test.yaml
@@ -0,0 +1,105 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: k8s-discovery-test
+  namespace: redis-demo
+spec:
+  containers:
+  - name: test
+    image: alpine:latest
+    command: ["sh", "-c"]
+    args:
+    - |
+      echo "=== Installing Go ==="
+      apk add --no-cache go
+      
+      echo "=== Building discovery tool ==="
+      mkdir -p /app/discovery
+      cat > /app/discovery/main.go << 'EOF'
+package main
+
+import (
+	"fmt"
+	"net"
+	"strings"
+)
+
+func main() {
+	fmt.Println("=== Kubernetes Service Discovery Test ===")
+	
+	headlessAddr := "redis-headless.redis-demo.svc.cluster.local"
+	fmt.Printf("🔍 Discovering service: %s\n", headlessAddr)
+	
+	serviceInfo, err := parseHeadlessServiceAddr(headlessAddr)
+	if err != nil {
+		fmt.Printf("❌ Failed to discover service: %v\n", err)
+		return
+	}
+	
+	fmt.Println("\n📋 Service Information:")
+	fmt.Printf("  Name: %s\n", serviceInfo.Name)
+	fmt.Printf("  Namespace: %s\n", serviceInfo.Namespace)
+	
+	if len(serviceInfo.All) > 0 {
+		fmt.Printf("\n🌐 All Pod IPs (%d):\n", len(serviceInfo.All))
+		for idx, ip := range serviceInfo.All {
+			podName := fmt.Sprintf("%s-%d", serviceInfo.Name, idx)
+			if idx == 0 {
+				fmt.Printf("  📌 Master:  %s -> %s\n", podName, ip)
+			} else {
+				fmt.Printf("  📊 Replica: %s -> %s\n", podName, ip)
+			}
+		}
+	}
+	
+	fmt.Println("\n🎉 Service discovery completed successfully!")
+}
+
+type ServiceInfo struct {
+	Name  string
+	All   []string
+}
+
+func parseHeadlessServiceAddr(headlessAddr string) (*ServiceInfo, error) {
+	resolver := &net.Resolver{PreferGo: true}
+	addrs, err := resolver.LookupIPAddr(headlessAddr)
+	if err != nil {
+		return nil, fmt.Errorf("DNS query failed: %v", err)
+	}
+	
+	if len(addrs) == 0 {
+		return nil, fmt.Errorf("no records found")
+	}
+	
+	var podIPs []string
+	for _, addr := range addrs {
+		podIPs = append(podIPs, addr.String())
+	}
+	
+	parts := strings.Split(headlessAddr, ".")
+	if len(parts) < 4 {
+		return nil, fmt.Errorf("invalid format")
+	}
+	
+	serviceName := parts[0]
+	namespace := parts[1]
+	
+	return &ServiceInfo{
+		Name: serviceName,
+		All:  podIPs,
+	}, nil
+}
+EOF
+      
+      echo "=== Running discovery tool ==="
+      cd /app/discovery && go run main.go
+      
+      echo "=== Sleeping for 30s ==="
+      sleep 30
+    volumeMounts:
+    - name: app-volume
+      mountPath: /app
+  volumes:
+  - name: app-volume
+    emptyDir: {}
+  restartPolicy: Never
--- a/example/redis-cache/k8s/internal-test.yaml
+++ b/example/redis-cache/k8s/internal-test.yaml
@@ -0,0 +1,37 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: redis-internal-test
+  namespace: redis-demo
+spec:
+  containers:
+  - name: test
+    image: redis:7-alpine
+    command: ["sh", "-c"]
+    args:
+    - |
+      echo "=== Testing Redis from inside cluster ==="
+      echo "1. Testing DNS resolution..."
+      nslookup redis-headless.redis-demo.svc.cluster.local
+      
+      echo ""
+      echo "2. Testing individual pod DNS..."
+      nslookup redis-0.redis-headless.redis-demo.svc.cluster.local
+      nslookup redis-1.redis-headless.redis-demo.svc.cluster.local
+      nslookup redis-2.redis-headless.redis-demo.svc.cluster.local
+      
+      echo ""
+      echo "3. Testing Redis connectivity..."
+      redis-cli -h redis-0.redis-headless.redis-demo.svc.cluster.local ping
+      redis-cli -h redis-1.redis-headless.redis-demo.svc.cluster.local ping
+      redis-cli -h redis-2.redis-headless.redis-demo.svc.cluster.local ping
+      
+      echo ""
+      echo "4. Testing Redis operations..."
+      redis-cli -h redis-headless.redis-demo.svc.cluster.local set test-key "from-cluster"
+      VALUE=$(redis-cli -h redis-headless.redis-demo.svc.cluster.local get test-key)
+      echo "SET/GET result: $VALUE"
+      
+      echo ""
+      echo "=== Internal test completed ==="
+      sleep 3600
--- a/example/redis-cache/k8s/redis.yaml
+++ b/example/redis-cache/k8s/redis.yaml
@@ -0,0 +1,74 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: redis-demo
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: redis
+  namespace: redis-demo
+spec:
+  serviceName: redis-headless
+  replicas: 3
+  selector:
+    matchLabels:
+      app: redis
+  template:
+    metadata:
+      labels:
+        app: redis
+    spec:
+      containers:
+      - name: redis
+        image: redis:7-alpine
+        ports:
+        - containerPort: 6379
+        command:
+        - redis-server
+        - --bind
+        - "0.0.0.0"
+        - --port
+        - "6379"
+        - --replica-announce-ip
+        - $(POD_NAME).redis-headless.redis-demo.svc.cluster.local
+        env:
+        - name: POD_NAME
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.name
+        volumeMounts:
+        - name: redis-data
+          mountPath: /data
+      volumes:
+      - name: redis-data
+        emptyDir: {}
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: redis-headless
+  namespace: redis-demo
+  labels:
+    app: redis
+spec:
+  clusterIP: None
+  ports:
+  - port: 6379
+    name: redis
+  selector:
+    app: redis
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: redis
+  namespace: redis-demo
+  labels:
+    app: redis
+spec:
+  ports:
+  - port: 6379
+    name: redis
+  selector:
+    app: redis
--- a/example/redis-cache/k8s/simple-app.yaml
+++ b/example/redis-cache/k8s/simple-app.yaml
@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: redis-test
+  namespace: redis-demo
+spec:
+  containers:
+  - name: redis-test
+    image: redis:7-alpine
+    command: ["sh", "-c", "echo 'Testing Redis connection...'; redis-cli -h redis-headless.redis-demo.svc.cluster.local ping || echo 'Connection failed'; sleep 3600"]
+    env:
+    - name: REDIS_ADDR
+      value: "redis-headless.redis-demo.svc.cluster.local:6379"
--- a/example/redis-cache/k8s/test-configmap.yaml
+++ b/example/redis-cache/k8s/test-configmap.yaml
@@ -0,0 +1,66 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: test-script
+  namespace: redis-demo
+data:
+  test.sh: |
+    #!/bin/sh
+    
+    echo "=== Redis Cache Demo Test ==="
+    echo "Testing Redis connectivity..."
+    
+    # 测试 Redis 连接
+    redis-cli -h redis-headless.redis-demo.svc.cluster.local ping
+    
+    echo ""
+    echo "Testing basic cache operations..."
+    
+    # 设置值
+    redis-cli -h redis-headless.redis-demo.svc.cluster.local set test-key "hello-world"
+    echo "SET test-key 'hello-world'"
+    
+    # 获取值
+    VALUE=$(redis-cli -h redis-headless.redis-demo.svc.cluster.local get test-key)
+    echo "GET test-key: $VALUE"
+    
+    # 设置 Hash
+    redis-cli -h redis-headless.redis-demo.svc.cluster.local hset user:1 name "张三"
+    redis-cli -h redis-headless.redis-demo.svc.cluster.local hset user:1 age "25"
+    echo "HSET user:1 name '张三', age '25'"
+    
+    # 获取 Hash
+    NAME=$(redis-cli -h redis-headless.redis-demo.svc.cluster.local hget user:1 name)
+    AGE=$(redis-cli -h redis-headless.redis-demo.svc.cluster.local hget user:1 age)
+    echo "HGET user:1 name: $NAME, age: $AGE"
+    
+    # 获取所有 Hash 字段
+    ALL_HASH=$(redis-cli -h redis-headless.redis-demo.svc.cluster.local hgetall user:1)
+    echo "HGETALL user:1: $ALL_HASH"
+    
+    # 计数器测试
+    redis-cli -h redis-headless.redis-demo.svc.cluster.local set counter 0
+    COUNTER1=$(redis-cli -h redis-headless.redis-demo.svc.cluster.local incr counter)
+    COUNTER2=$(redis-cli -h redis-headless.redis-demo.svc.cluster.local incrby counter 5)
+    echo "COUNTER: initial=0, +1=$COUNTER1, +5=$COUNTER2"
+    
+    # 测试过期
+    redis-cli -h redis-headless.redis-demo.svc.cluster.local set expire-key "will-expire" EX 5
+    echo "SET expire-key 'will-expire' with TTL 5s"
+    sleep 2
+    EXPIRED=$(redis-cli -h redis-headless.redis-demo.svc.cluster.local get expire-key)
+    echo "GET expire-key after 2s: $EXPIRED"
+    
+    sleep 4
+    EXPIRED2=$(redis-cli -h redis-headless.redis-demo.svc.cluster.local get expire-key)
+    echo "GET expire-key after 6s: $EXPIRED2 (should be nil)"
+    
+    echo ""
+    echo "=== Test Summary ==="
+    echo "✅ Basic SET/GET operations"
+    echo "✅ Hash operations (HSET/HGET/HGETALL)"
+    echo "✅ Counter operations (INCR/INCRBY)"
+    echo "✅ TTL operations"
+    echo "✅ Redis cluster connectivity"
+    echo ""
+    echo "All tests completed successfully!"
--- a/example/redis-cache/k8s/test-pod.yaml
+++ b/example/redis-cache/k8s/test-pod.yaml
@@ -0,0 +1,21 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: redis-cache-test
+  namespace: redis-demo
+spec:
+  restartPolicy: Never
+  containers:
+  - name: test-runner
+    image: redis:7-alpine
+    command: ["sh"]
+    args: ["/scripts/test.sh"]
+    volumeMounts:
+    - name: test-scripts
+      mountPath: /scripts
+      readOnly: true
+  volumes:
+  - name: test-scripts
+    configMap:
+      name: test-script
+      defaultMode: 0755