first istio steps

Author: dbadura

README.md

@@ -186,10 +186,10 @@ To install busola on k8s cluster run:
 (cd resources && kustomize build base/ | kubectl apply -f- )
 ```
 
-To install busola with istio gateway please prepare `DOMAIN`, go to `resources` and run:
+To install busola using specific environment configuration, set `ENVIRONMENT` environment variable and run:
 
 ```shell
-./apply-resources-istio.sh ${YOUR_DOMAIN}
+(cd resources && kustomize build environments/${ENVIRONMENT} | kubectl apply -f- )
 ```
 
 ### Access busola installed on Kubernetes
@@ -214,9 +214,13 @@ Install ingress resources by running:
 
 Then go to `localhost`
 
-### Istio-ingress gateway
+### Istio
 
-TODO: access via istio ingress
+To install Istio needed resources, prepare `DOMAIN`and run:
+
+```shell
+(cd resources && ./apply-resources-istio.sh ${YOUR_DOMAIN})
+```
 
 ## Troubleshooting
 

resources/apply-resources-istio.sh

@@ -7,12 +7,15 @@ if [ -z "$1" ] ; then
 fi
 
 export DOMAIN=$1
-export NAMESPACE=${2:-busola}
-export ENVIRONMENT=$3
+export NAMESPACE=${2:-default}
 TMP_DIR="../temp/resources"
 
-./apply-resources.sh "$@"
 
-envsubst < "${TMP_DIR}"/istio/virtualservice-busola.tpl.yaml > "${TMP_DIR}"/istio/virtualservice-busola.yaml
+mkdir -p "${TMP_DIR}"
+cp -rf . "${TMP_DIR}"
+#./apply-resources.sh "$@"
+
+envsubst < "${TMP_DIR}"/istio/gateway.tpl.yaml > "${TMP_DIR}"/istio/gateway.yaml
+envsubst < "${TMP_DIR}"/istio/http_route.tpl.yaml > "${TMP_DIR}"/istio/http_route.yaml
 
 kubectl apply -k "${TMP_DIR}"/istio --namespace=$NAMESPACE

resources/istio/destinationrule-busola-backend.yaml

@@ -0,0 +1,15 @@
+apiVersion: gateway.networking.k8s.io/v1
+kind: Gateway
+metadata:
+  name: busola
+  namespace: ${NAMESPACE}
+spec:
+  gatewayClassName: istio
+  listeners:
+    - name: http
+      hostname: ${DOMAIN}
+      port: 80
+      protocol: HTTP
+      allowedRoutes:
+        namespaces:
+          from: Same

resources/istio/gateway.tpl.yaml

@@ -0,0 +1,18 @@
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: httproute
+  namespace: ${NAMESPACE}
+spec:
+  parentRefs:
+    - name: gateway
+  hostnames: ['${DOMAIN}']
+  rules:
+    - matches:
+        - path:
+            type: PathPrefix
+            value: /headers
+      backendRefs:
+        - name: busola
+          namespace: ${NAMESPACE}
+          port: 3001

resources/istio/http_route.tpl.yaml

@@ -1,7 +1,8 @@
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
-  - virtualservice-busola.yaml
+  - gateway.yaml
+  - http_route.yaml
   # Add the destinationrule for TLS into the backend pod.
   # This will tell the istio sidecar to use TLS to connect to the backend service.
   # For this to work, you need to enable TLS in the backend. See docs/install-kyma-dashboard-manually.md for more information.