Add helm charts for horovod based app

Tasks in this patch:

Create sample Tensorflow MNIST application using horovod: https://jira.onap.org/browse/ONAPARC-450

Change-Id: I50827a47f7c48574944cde28fca32f265b649b59
Issue-ID: ONAPARC-450
Signed-off-by: Rajamohan Raj <rajamohan.raj@intel.com>

1 files changed, 126 insertions, 0 deletions

diff --git a/vnfs/DAaaS/applications/charts/sample-horovod-app/templates/job.yaml b/vnfs/DAaaS/applications/charts/sample-horovod-app/templates/job.yaml
new file mode 100644
index 00000000..4e59b277
--- /dev/null
+++ b/vnfs/DAaaS/applications/charts/sample-horovod-app/templates/job.yaml
@@ -0,0 +1,126 @@
+---
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: {{ template "horovod.fullname" . }}
+  labels:
+    app: {{ template "horovod.name" . }}
+    chart: {{ template "horovod.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+    role: master
+spec:
+  template:
+    metadata:
+      labels:
+        app: {{ template "horovod.name" . }}
+        release: {{ .Release.Name }}
+        role: master
+    spec:
+      {{- if .Values.useHostNetwork }}
+      hostNetwork: {{ .Values.useHostNetwork }}
+      dnsPolicy: ClusterFirstWithHostNet
+      {{- end }}
+      {{- if .Values.useHostPID }}
+      hostPID: {{ .Values.useHostPID }}
+      {{- end }}
+      restartPolicy: OnFailure
+      volumes:
+      - name: {{ template "horovod.fullname" . }}-cm
+        configMap:
+          name: {{ template "horovod.fullname" . }}
+          items:
+          - key: hostfile.config
+            path: hostfile
+            mode: 438
+          - key: master.waitWorkerReady
+            path: waitWorkersReady.sh
+            mode: 365
+          - key: master.run
+            path: run.sh
+            mode: 365
+      {{- if .Values.ssh.useSecrets }}
+      - name: {{ template "horovod.fullname" . }}-secret
+        secret:
+          secretName: {{ template "horovod.fullname" . }}
+          defaultMode: 448
+          items:
+          - key: host-key
+            path: id_rsa
+          - key: host-key-pub
+            path: authorized_keys
+      {{- end }}
+{{- if .Values.volumes }}
+{{ toYaml .Values.volumes | indent  6 }}
+{{- end }}
+      containers:
+      - name: horovod-master
+        image: "{{ .Values.master.image.repository }}:{{ .Values.master.image.tag }}"
+        imagePullPolicy: {{ .Values.master.image.pullPolicy }}
+        env:
+         - name: SSHPORT
+           value: "{{ .Values.ssh.port }}"
+       {{- if .Values.ssh.useSecrets }}
+         - name: USESECRETS
+           value: "{{ .Values.ssh.useSecrets }}"
+       {{- end }}
+       {{- if .Values.master.env }}            
+       {{- range $key, $value := .Values.master.env }}
+         - name: "{{ $key }}"
+           value: "{{ $value }}"
+       {{- end }}
+       {{- end }}
+{{- if .Values.master.privileged }}
+        securityContext:
+          privileged: true
+{{- end }}
+        ports:
+        - containerPort: {{ .Values.ssh.port }}
+        volumeMounts:
+        - name: {{ template "horovod.fullname" . }}-cm
+          mountPath: /horovod/generated
+        {{- if .Values.ssh.useSecrets }}
+        - name: {{ template "horovod.fullname" . }}-secret
+          readOnly: true
+          mountPath: "/etc/secret-volume"
+        {{- end }}
+{{- if .Values.volumeMounts }}
+{{ toYaml .Values.volumeMounts | indent 8 }}
+{{- end }}
+        command: 
+        - /horovod/generated/run.sh
+        args:
+{{ toYaml .Values.master.args | indent 10 }}         
+        resources:
+{{ toYaml .Values.resources | indent 10 }}
+{{- if .Values.ssh.useSecrets }}
+      initContainers:
+      - name: wait-workers
+        image: "{{ .Values.master.image.repository }}:{{ .Values.master.image.tag }}"
+        imagePullPolicy: {{ .Values.master.image.pullPolicy }}
+        env:
+        - name: SSHPORT
+          value: "{{ .Values.ssh.port }}"
+        {{- if .Values.ssh.useSecrets }}
+        - name: USESECRETS
+          value: "{{ .Values.ssh.useSecrets }}"
+        {{- end }}
+        {{- if .Values.master.env }}            
+        {{- range $key, $value := .Values.master.env }}
+        - name: "{{ $key }}"
+          value: "{{ $value }}"
+        {{- end }}
+        {{- end }}
+        command: 
+        - /horovod/generated/waitWorkersReady.sh
+        args:
+        - /horovod/generated/hostfile
+        volumeMounts:
+        - name: {{ template "horovod.fullname" . }}-cm
+          mountPath: /horovod/generated
+        {{- if .Values.ssh.useSecrets }}
+        - name: {{ template "horovod.fullname" . }}-secret
+          readOnly: true
+          mountPath: "/etc/secret-volume"
+        {{- end }}
+{{- end }}