sum-elier opened a new issue, #1823:
URL: https://github.com/apache/apisix-ingress-controller/issues/1823
### Issue description
Hello. I am trying to use K8s, gRPC, and APISIX ingress controller locally
through Kind. I have a small toy project to play around with these and it
currently works with Contour without issues. I am trying to migrate it to
APISIX but I am facing issues since what used to work with Contour as ingress
no longer does with APISIX. The error I face is related to connectivity:
```
"error":"rpc error: code = Unavailable desc = connection closed before
server preface received"
```
I am starting out with K8s and so I am not sure where to begin to look for
issues.
I have tried to use APISIX as an Ingress or as an Gateway, and both give the
same error. Following are the two setups for both approaches.
## Kind cluster configuration
```yaml
apiVersion: kind.x-k8s.io/v1alpha4
kind: Cluster
featureGates:
"GRPCContainerProbe": true
nodes:
- role: control-plane
kubeadmConfigPatches:
- |
kind: InitConfiguration
nodeRegistration:
kubeletExtraArgs:
node-labels: "ingress-ready=true"
extraPortMappings:
- containerPort: 30980
hostPort: 80
- containerPort: 30180
hostPort: 9180
- role: worker
- role: worker
```
## As Ingress
### Command to install ingress controller:
```bash
helm upgrade apisix apisix/apisix \
--create-namespace \
--namespace default \
--set admin.nodePort=30180 \
--set admin.type=NodePort \
--set apisix.timezone="UTC" \
--set dashboard.enabled=true \
--set gateway.http.nodePort=30980 \
--set gateway.type=NodePort \
--set ingress-controller.config.apisix.adminAPIVersion=v3 \
--set ingress-controller.config.apisix.serviceNamespace=default
\
--set ingress-controller.enabled=true \
--atomic --install --debug
```
### Service
```yaml
apiVersion: v1
kind: Service
metadata:
name: todos-service
labels:
app.kubernetes.io/name: todos
app.kubernetes.io/component: server
app.kubernetes.io/instance: todos-service-default
app.kubernetes.io/version: "0.1.0"
spec:
selector:
app.kubernetes.io/name: todos
app.kubernetes.io/component: server
ports:
- name: todos-app
port: 6666
targetPort: grpc
```
### ApisixUpstream
```yaml
apiVersion: apisix.apache.org/v2
kind: ApisixUpstream
metadata:
name: todos-service
labels:
app.kubernetes.io/name: todos
app.kubernetes.io/component: server
app.kubernetes.io/instance: todos-service-apisix-upstream-default
app.kubernetes.io/version: "0.1.0"
spec:
scheme: grpc
```
## As Gateway API
### Command to install Gateway:
```bash
kubectl apply -f
https://github.com/kubernetes-sigs/gateway-api/releases/download/v0.7.0-rc1/experimental-install.yaml
```
### Command to install ingress controller:
```bash
helm upgrade apisix apisix/apisix \
--create-namespace \
--namespace default \
--set admin.nodePort=30180 \
--set admin.type=NodePort \
--set apisix.timezone="UTC" \
--set dashboard.enabled=true \
--set gateway.http.nodePort=30980 \
--set gateway.type=NodePort \
--set ingress-controller.config.apisix.adminAPIVersion=v3 \
--set ingress-controller.config.apisix.serviceNamespace=default
\
--set
ingress-controller.config.kubernetes.enableGatewayAPI=true \
--set ingress-controller.enabled=true \
--atomic --install --debug
```
### Service (same as ingress)
```yaml
apiVersion: v1
kind: Service
metadata:
name: todos-service
labels:
app.kubernetes.io/name: todos
app.kubernetes.io/component: server
app.kubernetes.io/instance: todos-service-default
app.kubernetes.io/version: "0.1.0"
spec:
selector:
app.kubernetes.io/name: todos
app.kubernetes.io/component: server
ports:
- name: todos-app
port: 6666
targetPort: grpc
```
### Gateway
```yaml
apiVersion: gateway.networking.k8s.io/v1alpha2
kind: GatewayClass
metadata:
name: todos-apisix-gatewayclass
labels:
app.kubernetes.io/name: todos
app.kubernetes.io/component: gateway
app.kubernetes.io/instance: todos-gateway-class-default
app.kubernetes.io/version: "0.1.0"
spec:
controllerName: apisix.apache.org/gateway-controller
---
apiVersion: gateway.networking.k8s.io/v1alpha2
kind: Gateway
metadata:
name: todos-gateway
labels:
app.kubernetes.io/name: todos
app.kubernetes.io/component: gateway
app.kubernetes.io/instance: todos-gateway-default
app.kubernetes.io/version: "0.1.0"
spec:
gatewayClassName: todos-apisix-gatewayclass
listeners:
- name: grpc
protocol: HTTP
port: 30980
---
apiVersion: gateway.networking.k8s.io/v1alpha2
kind: GRPCRoute
metadata:
name: todos-grpc-route
labels:
app.kubernetes.io/name: todos
app.kubernetes.io/component: gateway
app.kubernetes.io/instance: todos-grpc-route-default
app.kubernetes.io/version: "0.1.0"
spec:
parentRefs:
- name: todos-gateway
rules:
- backendRefs:
- name: todos-service
port: 6666
```
What is wrong with my configuration or where should I start looking for the
problem(s)?
### Environment
- your apisix-ingress-controller version (output of
apisix-ingress-controller version --long): **1.6.1**.
This was taken from `helm search repo apisix`. I am using Kind and I
don't know much about K8s, so I don't know where to run
`apisix-ingress-controller version --long`.
- your Kubernetes cluster version (output of kubectl version):
```
Client Version: v1.25.4
Kustomize Version: v4.5.7
Server Version: v1.26.3
```
- if you run apisix-ingress-controller in Bare-metal environment, also show
your OS version (uname -a): N/A
- Helm output for `helm search repo apisix`:
```
NAME CHART VERSION APP VERSION
apisix/apisix 1.3.1 3.2.0
apisix/apisix-dashboard 0.8.0 3.0.0
apisix/apisix-ingress-controller 0.11.6 1.6.1
```
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