Merge branch 'feat/magma_snmp' into 'master'

feat(magma snmp): a few modifications to EEChart and SNMP and adding them to Magma

See merge request !83

magma/hackfest_magma-agw-enb_vnfd/helm-charts/eechart/.helmignore

+# 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/

magma/hackfest_magma-agw-enb_vnfd/helm-charts/eechart/Chart.yaml

+apiVersion: v1
+appVersion: "1.0"
+description: OSM EE helm chart
+name: eechart
+version: 0.1.0
+dependencies:
+  - name: snmpexporter
+    condition: snmpexporter.enabled

magma/hackfest_magma-agw-enb_vnfd/helm-charts/eechart/charts/snmpexporter/.helmignore

+# 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
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/
\ No newline at end of file

magma/hackfest_magma-agw-enb_vnfd/helm-charts/eechart/charts/snmpexporter/Chart.yaml

+apiVersion: v1
+name: snmpexporter
+description: SNMP Exporter for OSM VNF
+type: application
+version: 1.0.0
+appVersion: 1.0.0
+dependencies:
+  - name: snmp-exporter
+    version: "0.17.0"
+    repository: "https://hub.docker.com/r/prom/snmp-exporter"

magma/hackfest_magma-agw-enb_vnfd/helm-charts/eechart/charts/snmpexporter/templates/_helpers.tpl

+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "snmpexporter.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 "snmpexporter.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 "snmpexporter.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "snmpexporter.labels" -}}
+helm.sh/chart: {{ include "snmpexporter.chart" . }}
+{{ include "snmpexporter.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "snmpexporter.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "snmpexporter.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "snmpexporter.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "snmpexporter.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}
\ No newline at end of file

magma/hackfest_magma-agw-enb_vnfd/helm-charts/eechart/charts/snmpexporter/templates/deployment.yaml

+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "snmpexporter.fullname" . }}
+  labels:
+    {{- include "snmpexporter.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "snmpexporter.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      labels:
+        {{- include "snmpexporter.selectorLabels" . | nindent 8 }}
+    spec:
+      securityContext:
+        runAsUser: 0
+      initContainers:
+        - name: init-config
+          image: busybox:1.28
+          command: ['sh', '-c', 'if [ ! -f "/etc/snmp_exporter/snmp.yml" ]; then cp /etc/snmp_exporter_init/snmp.yml /etc/snmp_exporter; fi']
+          volumeMounts:
+            - name: config-volume
+              mountPath: /etc/snmp_exporter
+            - name: init-config-volume
+              mountPath: /etc/snmp_exporter_init
+      containers:
+        - name: {{ .Chart.Name }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.version }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - containerPort: 9116
+              protocol: TCP
+          volumeMounts:
+            - name: config-volume
+              mountPath: /etc/snmp_exporter
+          livenessProbe:
+            exec:
+              command:
+                - /bin/sh
+                - -c
+                - if [ ! -f "/etc/snmp_exporter/generator.yml" ]; then exit 0; else rm -f /etc/snmp_exporter/generator.yml && exit 1; fi
+            failureThreshold: 1
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+      volumes:
+        - name: config-volume
+          hostPath: 
+            path: "/var/lib/osm/snmp_exporter/{{ .Values.global.osm.vnf_id | lower }}/"
+        - name: init-config-volume
+          configMap:
+            name: "snmp-init-config-{{ .Values.global.osm.vnf_id | lower }}"
+