Helm chart for multicloud-k8s connectivity

This patch has ISTIO components required to
expose the multicloud-k8s application outside
the servicemesh

Issue-ID: MULTICLOUD-787

Signed-off-by: Pramod <pramod.raghavendra.jayathirth@intel.com>
Change-Id: I4805520666ec653e9845432b85afdc1ce0ef1db9

11 files changed, 291 insertions, 0 deletions

diff --git a/deployments/helm/servicemesh/connectivity/README.md b/deployments/helm/servicemesh/connectivity/README.md
new file mode 100644
index 00000000..1dd36024
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+++ b/deployments/helm/servicemesh/connectivity/README.md
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+# Copyright 2019 Intel Corporation, Inc
+#
+# Licensed 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.
+
+Installation
+============
+
+Installing the Chart
+--------------------
+
+Install the ISTIO Gateway chart for multicloud-k8s application using:
+
+```bash
+$ helm install gateways
+```
+Install the ISTIO VirtualService chart for multicloud-k8s application using:
+
+```bash
+$ helm install virtualservices
+```
+Verify the connectivity to the application/service as shown below
+This is an example for Multicloud-k8s application
+
+```bash
+$ curl -v <IP Address of ISTIO Ingressgateway>/multicloud-k8s/healthcheck
+```
+The output like below shows that configuration is successful
+
+```bash
+Accept: */*
+
+HTTP/1.1 200 OK
+```
diff --git a/deployments/helm/servicemesh/connectivity/gateways/.helmignore b/deployments/helm/servicemesh/connectivity/gateways/.helmignore
new file mode 100644
index 00000000..50af0317
--- /dev/null
+++ b/deployments/helm/servicemesh/connectivity/gateways/.helmignore
@@ -0,0 +1,22 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/
diff --git a/deployments/helm/servicemesh/connectivity/gateways/Chart.yaml b/deployments/helm/servicemesh/connectivity/gateways/Chart.yaml
new file mode 100644
index 00000000..1e7df9f3
--- /dev/null
+++ b/deployments/helm/servicemesh/connectivity/gateways/Chart.yaml
@@ -0,0 +1,5 @@
+apiVersion: v1
+appVersion: "1.0"
+description: A Helm chart for Istio gatway
+name: gateways
+version: 0.1.0
diff --git a/deployments/helm/servicemesh/connectivity/gateways/templates/_helpers.tpl b/deployments/helm/servicemesh/connectivity/gateways/templates/_helpers.tpl
new file mode 100644
index 00000000..5516ee45
--- /dev/null
+++ b/deployments/helm/servicemesh/connectivity/gateways/templates/_helpers.tpl
@@ -0,0 +1,25 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
diff --git a/deployments/helm/servicemesh/connectivity/gateways/templates/gateway.yaml b/deployments/helm/servicemesh/connectivity/gateways/templates/gateway.yaml
new file mode 100644
index 00000000..72297350
--- /dev/null
+++ b/deployments/helm/servicemesh/connectivity/gateways/templates/gateway.yaml
@@ -0,0 +1,34 @@
+{{/*
+# Copyright 2019 Intel Corporation, Inc
+# #
+# # Licensed 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: networking.istio.io/v1alpha3
+kind: Gateway
+metadata:
+  name: {{ template "fullname" . }}
+  labels:
+    chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
+    release: {{ .Release.Name }}
+spec:
+  selector:
+    istio: ingressgateway
+  servers:
+  - port:
+      number: {{ .Values.port.number }}
+      name: {{ .Values.port.name }}
+      protocol: {{ .Values.port.protocol }}
+    hosts:
+    {{- range .Values.allowedhosts }}
+    - {{ . | quote }}
+    {{- end }}
diff --git a/deployments/helm/servicemesh/connectivity/gateways/values.yaml b/deployments/helm/servicemesh/connectivity/gateways/values.yaml
new file mode 100644
index 00000000..a90260ae
--- /dev/null
+++ b/deployments/helm/servicemesh/connectivity/gateways/values.yaml
@@ -0,0 +1,22 @@
+#
+#{/*
+# Copyright 2019 Intel Corporation, Inc
+#
+# Licensed 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.
+#*/}}
+port:
+  number: 80
+  name: http
+  protocol: HTTP
+allowedhosts:
+  - "*"
diff --git a/deployments/helm/servicemesh/connectivity/virtualservices/.helmignore b/deployments/helm/servicemesh/connectivity/virtualservices/.helmignore
new file mode 100644
index 00000000..50af0317
--- /dev/null
+++ b/deployments/helm/servicemesh/connectivity/virtualservices/.helmignore
@@ -0,0 +1,22 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/
diff --git a/deployments/helm/servicemesh/connectivity/virtualservices/Chart.yaml b/deployments/helm/servicemesh/connectivity/virtualservices/Chart.yaml
new file mode 100644
index 00000000..387fb876
--- /dev/null
+++ b/deployments/helm/servicemesh/connectivity/virtualservices/Chart.yaml
@@ -0,0 +1,18 @@
+# Copyright © 2019 Intel Corporation
+# #
+# # Licensed 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: v1
+appVersion: "1.0"
+description: A Helm chart for Istio virtualservice
+name: virtualservices
+version: 0.1.0
diff --git a/deployments/helm/servicemesh/connectivity/virtualservices/templates/_helpers.tpl b/deployments/helm/servicemesh/connectivity/virtualservices/templates/_helpers.tpl
new file mode 100644
index 00000000..5516ee45
--- /dev/null
+++ b/deployments/helm/servicemesh/connectivity/virtualservices/templates/_helpers.tpl
@@ -0,0 +1,25 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
diff --git a/deployments/helm/servicemesh/connectivity/virtualservices/templates/virtualservice.yaml b/deployments/helm/servicemesh/connectivity/virtualservices/templates/virtualservice.yaml
new file mode 100644
index 00000000..e1cd13b4
--- /dev/null
+++ b/deployments/helm/servicemesh/connectivity/virtualservices/templates/virtualservice.yaml
@@ -0,0 +1,43 @@
+{{/*
+# Copyright 2019 Intel Corporation, Inc
+#
+# Licensed 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: networking.istio.io/v1alpha3
+kind: VirtualService
+metadata:
+  name: {{ template "fullname" . }}
+spec:
+  hosts:
+  {{- range .Values.allowedhosts }}
+  - {{ . | quote }}
+  {{- end }}
+  gateways:
+  {{- range .Values.gateways }}
+  - {{ . | quote }}
+  {{- end }}
+{{- if .Values.httprules }}
+  http:
+  - match:
+    - uri:
+        prefix: {{ .Values.prefixmatchURI }}
+    rewrite:
+      uri: {{ .Values.rewriteURI }}
+    route:
+    - destination:
+        host: {{ .Values.destinationhost }}
+{{- end }}
+{{- if .Values.tcp }}
+  tcp:
+{{ toYaml .Values.tcp | indent 4 }}
+{{- end }}
diff --git a/deployments/helm/servicemesh/connectivity/virtualservices/values.yaml b/deployments/helm/servicemesh/connectivity/virtualservices/values.yaml
new file mode 100644
index 00000000..7153ae55
--- /dev/null
+++ b/deployments/helm/servicemesh/connectivity/virtualservices/values.yaml
@@ -0,0 +1,32 @@
+# Copyright © 2019 Intel Corporation
+#
+# Licensed 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.
+#
+# This file is a sample virtualservice format
+# for the multicloud-k8s application
+allowedhosts:
+- "*"
+# Input the name of the gateway - TO BE FILLED IN BY USER/ADMIN
+gateways:
+- <Name of the gateway to be used>
+httprules:
+  enabled: true
+# Input the prefixmatchURI - TO BE FILLED IN BY USER/ADMIN
+# Example: prefixmatchURI: /multicloud-k8s/
+prefixmatchURI: < Enter Prefixmatch>
+# Input the rewrite URI - TO BE FILLED IN BY USER/ADMIN
+# Example - rewriteURI: /
+rewriteURI: <Enter rewriteURI>
+# Destination host - TO BE FILLED IN BY USER/ADMIN
+destinationhost: <Name of the Service>
+port: <Port number of the service>