Seems like I moved some files around (it's been a while)

Also have documented the ingress example regarding installing a Istio Ingress Gateway Load Balancer.

06-Envoy/01-envoy_add_headers/README.md

@@ -1,42 +0,0 @@
-https://github.com/istio/istio/wiki/EnvoyFilter-Samples
-
-https://stackoverflow.com/questions/73262158/how-to-apply-envoyfilter-to-sidecar-inbound-and-gateway
-
-
-https://istio.io/latest/docs/reference/config/networking/envoy-filter/
-
-https://discuss.istio.io/t/adding-custom-response-headers-using-istios-1-6-0-envoy-lua-filter/7494
-
-
-
-https://www.envoyproxy.io/docs/envoy/latest/configuration/http/http_filters/lua_filter
-
-
-> kubectl logs -f deployments/istiod -n istio-system   
-
-
-
-This somewhat is monitoring, can do cool stuff I don't know how or what to do
-
-
-enable export access logs to stdout
-
-
-istioctl install --set profile=default -y --set meshConfig.accessLogFile=/dev/stdout
-
-
-
-https://istio.io/latest/docs/ops/diagnostic-tools/component-logging/
-
-
-
-
-https://dev.to/aws-builders/understanding-istio-access-logs-2k5o
-
-```yaml
-Note: Here I am using request_handle:logCritical method because default logLevel is WARN for Istio components. request_handle:logInfo can be used, if logLevel is set to Info.
-```
-
-https://youtu.be/yOtEG1luTwU
-
-

06-Envoy/01-envoy_add_headers/deployment.yaml

@@ -1,43 +0,0 @@
-apiVersion: v1
-kind: Service
-metadata:
-  name: helloworld
-  labels:
-    app: helloworld
-    service: helloworld
-#  annotations:
-#    sidecar.istio.io/componentLogLevel: info
-spec:
-  ports:
-    - port: 80
-      name: http
-  selector:
-    app: helloworld
----
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: helloworld-nginx
-  labels:
-    app: helloworld
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: helloworld
-  template:
-    metadata:
-      labels:
-        app: helloworld
-      annotations:
-        sidecar.istio.io/componentLogLevel: lua:info
-    spec:
-      containers:
-        - name: helloworld
-          image: nginx
-          resources:
-            requests:
-              cpu: "100m"
-          imagePullPolicy: IfNotPresent #Always
-          ports:
-            - containerPort: 80

06-Envoy/01-envoy_add_headers/envoy.yaml

@@ -1,33 +0,0 @@
-apiVersion: networking.istio.io/v1alpha3
-kind: EnvoyFilter
-metadata:
-  name: envoy-add-response-header
-  namespace: default
-spec:
-  priority:  30
-  workloadSelector:
-    labels:
-      app: helloworld
-  configPatches:
-    - applyTo: HTTP_FILTER
-      match:
-        context: SIDECAR_INBOUND
-        listener:
-          portNumber: 80
-          filterChain:
-            filter:
-              name: "envoy.filters.network.http_connection_manager"
-              subFilter:
-                name: "envoy.filters.http.router"
-      patch:
-        operation: INSERT_BEFORE
-        value:
-          name: envoy.lua
-          typed_config:
-            "@type": "type.googleapis.com/envoy.extensions.filters.http.lua.v3.Lua"
-            inlineCode: |
-              function envoy_on_response(response_handle)
-                response_handle:headers():add("numbers", "lots of numbers")
-                response_handle:logInfo("Added header `numbers`")
-                response_handle:logInfo(">>>> Executed `envoy-add-response-header` <<<<")
-              end

06-Envoy/01-envoy_add_headers/envoy2.yaml

@@ -1,38 +0,0 @@
-apiVersion: networking.istio.io/v1alpha3
-kind: EnvoyFilter
-metadata:
-  name: envoy-add-response-header2
-  namespace: default
-spec:
-  priority:  40
-  workloadSelector:
-    labels:
-      app: helloworld
-  configPatches:
-    - applyTo: HTTP_FILTER
-      match:
-        context: SIDECAR_INBOUND
-        listener:
-          portNumber: 80
-          filterChain:
-            filter:
-              name: "envoy.filters.network.http_connection_manager"
-              subFilter:
-                name: "envoy.filters.http.router"
-      patch:
-        operation: INSERT_BEFORE
-        value:
-          name: envoy.lua
-          typed_config:
-            "@type": "type.googleapis.com/envoy.extensions.filters.http.lua.v3.Lua"
-            inlineCode: |
-              function envoy_on_response(response_handle)
-                response_handle:headers():add("fruit", "watermelons")
-                response_handle:logCritical("Critical: Added header `fruit`")
-                response_handle:logErr("Error: Added header `fruit`")
-                response_handle:logWarn("Warning: Added header `fruit`")
-                response_handle:logInfo("Info: Added header `fruit`")
-                response_handle:logDebug("Debug: Added header `fruit`")
-                response_handle:logTrace("Trace: Added header `fruit`")
-                response_handle:logInfo(">>>> Executed `envoy-add-response-header2` <<<<")
-              end

06-Envoy/01-envoy_add_headers/gateway.yaml

@@ -1,36 +0,0 @@
-# https://github.com/istio/istio/blob/master/samples/helloworld/helloworld-gateway.yaml
-apiVersion: networking.istio.io/v1alpha3
-kind: Gateway
-metadata:
-  name: helloworld-gateway
-spec:
-  selector:
-    istio: ingressgateway # use istio default controller
-  servers:
-    - port:
-        number: 80
-        name: http
-        protocol: HTTP
-      hosts:
-        - "*"
----
-apiVersion: networking.istio.io/v1alpha3
-kind: VirtualService
-metadata:
-  name: helloworld-vs
-spec:
-  hosts:
-    - "*"
-  gateways:
-    - helloworld-gateway
-  http:
-    - match:
-        - uri:
-            exact: /helloworld
-      route:
-        - destination:
-            host: helloworld
-            port:
-              number: 80
-      rewrite:
-        uri: "/"

06-Envoy/README.md

@@ -1,6 +0,0 @@
-https://youtu.be/yOtEG1luTwU
-
-
-Rate Limit:
-
-https://istio.io/latest/docs/tasks/policy-enforcement/rate-limit/