Adding helm chart and end2end test (#12)

* Adding helm chart

Signed-off-by: Rishabh Gupta <[email protected]>

* Moved to cron-connector folder

Signed-off-by: Rishabh Gupta <[email protected]>

* Fixed _helpers.tpl

Signed-off-by: Rishabh Gupta <[email protected]>

* Updated helm chart to v0.2.2

Signed-off-by: Rishabh Gupta <[email protected]>

* Added e2e test

Signed-off-by: Rishabh Gupta <[email protected]>

.travis.yml

@@ -35,6 +35,7 @@ install: true
 
 script:
   - bash ./travis/build.sh
+  - bash ./travis/test.sh
 
 deploy:
   provider: script

chart/cron-connector/.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/

chart/cron-connector/Chart.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+description: Trigger OpenFaas Functions with cron 
+name: cron-connector
+version: 0.2.1
+sources:
+- https://github.com/zeerorg/cron-connector
+home: https://www.openfaas.com
+icon: https://raw.githubusercontent.com/openfaas/media/master/OpenFaaS_logo_stacked_opaque.png
+keywords:
+- functions
+- timer
+- cron
+maintainers:
+- name: zeerorg
+  email: [email protected]

chart/cron-connector/templates/NOTES.txt

@@ -0,0 +1,5 @@
+Please follow the instructions below to get you started.
+
+You can watch the Connector logs to see it invoke your functions:
+
+$ kubectl logs -n {{ .Release.Namespace }} deploy/cron-connector -f

chart/cron-connector/templates/_helpers.tpl

@@ -0,0 +1,32 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "connector.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 "connector.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 -}}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "connector.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}

chart/cron-connector/templates/deployment.yaml

@@ -0,0 +1,69 @@
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  labels:
+    # Original Helm labels v
+    app: {{ template "connector.name" . }}
+    component: cron-connector
+    chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
+    heritage: {{ .Release.Service }}
+    release: {{ .Release.Name }}
+    # Helm/k8s recommended label names v
+    app.kubernetes.io/name: {{ template "connector.name" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/version: {{ .Chart.AppVersion }}
+    app.kubernetes.io/component: cron-connector
+    app.kubernetes.io/part-of: openfaas
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    helm.sh/chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
+  name: {{ template "connector.fullname" . }}
+  namespace: {{ .Release.Namespace | quote }}
+
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ template "connector.name" . }}
+      app.kubernetes.io/component: cron-connector
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: {{ template "connector.name" . }}
+        app.kubernetes.io/component: cron-connector
+    spec:
+      containers:
+      - name: cron-connector
+        image: {{ .Values.image }}
+        env:
+          - name: gateway_url
+            value: {{ .Values.gateway_url | quote }}
+          {{- if .Values.basic_auth }}
+          - name: basic_auth
+            value: "true"
+          - name: secret_mount_path
+            value: "/var/secrets"
+          {{- end }}
+        {{- if .Values.basic_auth }}          
+        volumeMounts:
+            - name: auth
+              readOnly: true
+              mountPath: "/var/secrets/"
+        {{- end }}
+      {{- if .Values.basic_auth }}
+      volumes:
+      - name: auth
+        secret:
+          secretName: basic-auth
+      {{- end }}
+    {{- with .Values.nodeSelector }}
+      nodeSelector:
+{{ toYaml . | indent 8 }}
+    {{- end }}
+    {{- with .Values.affinity }}
+      affinity:
+{{ toYaml . | indent 8 }}
+    {{- end }}
+    {{- with .Values.tolerations }}
+      tolerations:
+{{ toYaml . | indent 8 }}
+    {{- end }}

chart/cron-connector/values.yaml

@@ -0,0 +1,9 @@
+image: zeerorg/cron-connector:v0.2.2
+gateway_url: http://gateway.openfaas:8080
+basic_auth: true
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}

travis/test-func.yml

@@ -0,0 +1,21 @@
+provider:
+  name: openfaas
+  gateway: http://127.0.0.1:8080
+functions:
+  nodeinfo-1:
+    image: functions/nodeinfo:latest
+    annotations:
+      topic: cron-function
+      schedule: "* * * * *"
+  nodeinfo-2:
+    image: functions/nodeinfo:latest
+    annotations:
+      topic: cron-function
+      schedule: "* * * * *"
+  nodeinfo-3:
+    image: functions/nodeinfo:latest
+    annotations:
+      topic: cron-function
+      schedule: "* * * * *"
+  nodeinfo-4:
+    image: functions/nodeinfo:latest

travis/test.sh

@@ -0,0 +1,76 @@
+# Install kubectl
+curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl
+chmod +x ./kubectl
+sudo mv ./kubectl /usr/local/bin/kubectl
+
+# install helm
+curl -s https://raw.githubusercontent.com/kubernetes/helm/master/scripts/get | sudo bash
+
+# install k3d
+curl -s https://raw.githubusercontent.com/rancher/k3d/master/install.sh | sudo bash
+
+# Get faas-cli
+curl -sSL https://cli.openfaas.com | sudo sh
+
+# Start test cluster
+k3d create --wait 0
+sleep 20
+export KUBECONFIG="$(k3d get-kubeconfig)"
+
+# Prepare installation
+kubectl -n kube-system create sa tiller \
+ && kubectl create clusterrolebinding tiller \
+      --clusterrole cluster-admin \
+      --serviceaccount=kube-system:tiller
+
+helm init --skip-refresh --upgrade --wait --service-account tiller
+
+# create namesapce
+kubectl apply -f https://raw.githubusercontent.com/openfaas/faas-netes/master/namespaces.yml
+
+# add repo
+helm repo add openfaas https://openfaas.github.io/faas-netes/
+
+# set password
+PASSWORD="something"
+
+kubectl -n openfaas create secret generic basic-auth \
+--from-literal=basic-auth-user=admin \
+--from-literal=basic-auth-password="$PASSWORD"
+
+helm repo update \
+ && helm upgrade openfaas --install openfaas/openfaas \
+    --namespace openfaas  \
+    --set basic_auth=true \
+    --set functionNamespace=openfaas-fn \
+    --wait
+
+kubectl port-forward svc/gateway-external 31112:8080 -n openfaas &
+
+sleep 2
+
+export OPENFAAS_URL=http://localhost:31112
+echo -n $PASSWORD | faas-cli login -g $OPENFAAS_URL -u admin --password-stdin
+
+faas-cli deploy -f ./travis/test-func.yml
+
+kubectl rollout status --namespace openfaas-fn deployment/nodeinfo-1
+kubectl rollout status --namespace openfaas-fn deployment/nodeinfo-2
+kubectl rollout status --namespace openfaas-fn deployment/nodeinfo-3
+kubectl rollout status --namespace openfaas-fn deployment/nodeinfo-4
+
+helm upgrade --install --namespace openfaas --wait cron-connector ./chart/cron-connector --set image=zeerorg/cron-connector:test-build
+
+sleep 70
+
+Invokes1=$(faas-cli list | grep nodeinfo-1 | awk -F '\t' '{print $2}')
+Invokes2=$(faas-cli list | grep nodeinfo-2 | awk -F '\t' '{print $2}')
+Invokes3=$(faas-cli list | grep nodeinfo-3 | awk -F '\t' '{print $2}')
+
+faas-cli list
+kubectl logs --namespace openfaas deployment/cron-connector
+
+if [ \( $Invokes1 -lt 1 \) -o \( $Invokes2 -ne  $Invokes2 \) -o \( $Invokes2 -ne  $Invokes3 \) ]
+  then
+    exit 1
+fi