Add istio

Author: osterman

.editorconfig

@@ -5,4 +5,8 @@ indent_size = 4
 
 [Makefile.*]
 indent_style = tab
-indent_size = 4
+indent_size = 4
+
+[*.yaml]
+indent_style = spaces
+indent_size = 2

deploy/ctl

@@ -7,6 +7,16 @@ parameters:
   description: "Config file that keeps track of the current color"
 
 tasks:
+
+  # https://istio.io/docs/tasks/traffic-management/ingress/#determining-the-ingress-ip-and-ports-when-using-an-external-load-balancer
+  ingress-host:
+    script: |
+      kubectl -n istio-system get service istio-ingressgateway -o jsonpath='{.status.loadBalancer.ingress[0].hostname}'
+  # https://istio.io/docs/setup/kubernetes/quick-start/
+  istio-injection:
+    script: |
+      kubectl label namespace testing istio-injection=enabled
+
   deps:
     description: "Install alpine dependencies"
     script: |

deploy/helmfile.yaml

@@ -1,3 +1,4 @@
 # Ordered list of releases. 
 helmfiles:
-  - "releases/app.yaml"
+  - "releases/app.yaml"
+  - "releases/istio.yaml"

deploy/releases/istio.yaml

@@ -0,0 +1,54 @@
+repositories:
+# Cloud Posse incubator repo of helm charts
+- name: "kubernetes-incubator"
+  url: "https://kubernetes-charts-incubator.storage.googleapis.com"
+
+releases:
+#
+# References:
+#   - https://github.com/helm/charts/tree/master/incubator/raw
+#
+- name: 'example-{{ requiredEnv "COLOR" }}'
+  labels:
+    color: "{{ requiredEnv "COLOR" }}"
+  chart: "kubernetes-incubator/raw"
+  version: "0.1.0"
+  wait: true
+  force: true
+  recreatePods: false
+  values:
+    - resources:
+      # Istio Gateway
+      - apiVersion: networking.istio.io/v1alpha3
+        kind: Gateway
+        metadata:
+        name: example-app
+        spec:
+        selector:
+            # use istio default controller
+            istio: ingressgateway 
+        servers:
+        - port:
+            number: 80
+            name: http
+            protocol: HTTP
+            hosts:
+            - "{{ env "APP_HOSTNAME" }}"
+
+      # Istio Virtual Service
+      - apiVersion: networking.istio.io/v1alpha3
+        kind: VirtualService
+        metadata:
+          name: example-app
+        spec:
+          hosts:
+          - "{{ env "APP_HOSTNAME" }}"
+          gateways:
+          - example-app
+          http:
+          - route:
+            - destination:
+                host: example-{{ env "COLOR" }}
+                port:
+                  number: 80
+              weight: 100