feat: chaos test on route could still works when etcd is down

.github/workflows/chaos.yml

@@ -0,0 +1,52 @@
+name: Chaos Test
+
+on: [pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: setup go
+        uses: actions/setup-go@v2.1.3
+        with:
+          go-version: "1.14"
+
+      - name: Creating minikube cluster
+        run: |
+          bash ./t/chaos/utils.sh start_minikube
+
+      - name: Print cluster information
+        run: |
+          kubectl config view
+          kubectl cluster-info
+          kubectl get nodes
+          kubectl get pods -n kube-system
+          kubectl version
+
+      # TODO: should not use personal repo, while it's hard to modify a lot in an archived repo. Could we use api7's repo?
+      - name: Deploy Etcd Operator
+        run: |
+          git clone https://github.com/yiyiyimu/etcd-operator.git --depth 1
+          bash etcd-operator/example/rbac/create_role.sh
+          kubectl create -f etcd-operator/example/deployment.yaml
+          bash ./t/chaos/utils.sh ensure_pods_ready etcd-operator "True" 30
+          kubectl create -f etcd-operator/example/example-etcd-cluster.yaml
+          bash ./t/chaos/utils.sh ensure_pods_ready etcd "True True True" 30
+
+      - name: Deploy APISIX
+        run: |
+          bash ./t/chaos/utils.sh modify_config
+          kubectl create configmap apisix-gw-config.yaml --from-file=./conf/config.yaml
+          kubectl apply -f ./kubernetes/deployment.yaml
+          kubectl apply -f ./kubernetes/service.yaml
+          bash ./t/chaos/utils.sh ensure_pods_ready apisix-gw "True" 30
+          nohup kubectl port-forward svc/apisix-gw-lb 9080:9080 >/dev/null 2>&1 &
+
+      - name: Deploy Chaos mesh
+        run: |
+          curl -sSL https://mirrors.chaos-mesh.org/v1.1.1/install.sh | bash
+
+      - name: run test
+        working-directory: ./t/chaos
+        run: go test -v

kubernetes/deployment.yaml

@@ -23,7 +23,7 @@ metadata:
   name: apisix-gw-deployment
   # namespace: default
 spec:
-  replicas: 2
+  replicas: 1
   selector:
     matchLabels:
       app: apisix-gw
@@ -57,6 +57,7 @@ spec:
               sysctl -w fs.inotify.max_user_watches=524288
               sysctl -w fs.inotify.max_queued_events=16384
           image: busybox:latest
+          imagePullPolicy: IfNotPresent
           name: init-sysctl
           resources: {}
           securityContext:

t/chaos/go.mod

@@ -0,0 +1,8 @@
+module github.com/apache/apisix/t/chaos
+
+require (
+	github.com/gavv/httpexpect/v2 v2.1.0
+	github.com/onsi/gomega v1.9.0
+)
+
+go 1.14

t/chaos/go.sum

@@ -0,0 +1,97 @@
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t/chaos/kill-etcd.yaml

@@ -0,0 +1,29 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+apiVersion: chaos-mesh.org/v1alpha1
+kind: PodChaos
+metadata:
+  name: kill-etcd
+spec:
+  action: pod-kill
+  mode: all
+  selector:
+    labelSelectors:
+      "app": "etcd"
+  scheduler:
+      cron: "@every 10m"