Added ingress for K8s deployments (#97)

* Added ingress for K8s and fixed API version for the deployment

* Added ingress options for K8s

* Fixed link to deployment on REAMDE

* Fixed the default issuer name

---------

Co-authored-by: Alvaro Gonzalez <alvaro.gonzalez@csc.fi>
Co-authored-by: Alex Kanitz <alexander.kanitz@unibas.ch>

Author: 3 people

README.md

@@ -92,8 +92,7 @@ curl -X GET "http://localhost:8080/ga4gh/trs/v2/tools" -H "accept: application/j
 To quickly install the service for development/testing purposes, we recommend
 deployment via [`docker-compose`][res-docker-compose], as described below. For
 more durable deployments on cloud native infrastructure, we also provide a
-[Helm][res-helm] chart and [basic deployment instructions][trs-filer-
-deployment] (details may need to be adapted for your specific infrastructure).
+[Helm][res-helm] chart and [basic deployment instructions][trs-filer-deployment] (details may need to be adapted for your specific infrastructure).
 
 ### Requirements
 

deployment/templates/trs-filer-deploy.yaml

@@ -1,4 +1,4 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: {{ .Values.trs_filer.appName }}

deployment/templates/trs-filer-route.yaml

@@ -17,4 +17,35 @@ spec:
   wildcardPolicy: None
 status:
   ingress: []
+{{ else if eq .Values.clusterType "kubernetes" }}
+{{ if .Values.kubernetes.ingress.enabled }}
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  annotations:
+    kubernetes.io/ingress.class: nginx
+    {{ if .Values.kubernetes.ingress.enabled }}
+    cert-manager.io/cluster-issuer: {{ .Values.kubernetes.https.issuer }}
+    kubernetes.io/tls-acme: "true"
+    {{ end }}
+  name: {{ .Values.trs_filer.appName }}-ingress
+spec:
+  rules:
+  - host: {{ .Values.host_name }}
+    http:
+      paths:
+      - backend:
+          service:
+            name: {{ .Values.trs_filer.appName }}
+            port:
+              number: 8080
+        path: /
+        pathType: Prefix
+{{ if .Values.kubernetes.https.enabled }}
+  tls:
+  - hosts:
+    - {{ .Values.host_name }}
+    secretName: {{ .Values.trs_filer.appName }}-ingress-secret
+{{ end }}
 {{ end }}
+{{ end }}

deployment/values.yaml

@@ -12,6 +12,17 @@ trs_filer:
 
 apiServer: kubernetes.default.svc:443 # address of k8s API server
 
+# If you are running kubernetes select whether you would like
+# to access the service via Ingress. Also, if you have the cert manager
+# installed, you can provision a certificate for https
+kubernetes:
+  ingress:
+    enabled: true
+  https:
+    enabled: true
+    issuer: letsencrypt-prod
+
 mongodb:
   image: mongo:3.6
   volumeSize: 1Gi
+