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[logstash] extraPorts value when set generates errors
#801

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[logstash] extraPorts value when set generates errors#801

Description

@andelhie

andelhie
openedon Sep 2, 2020

Chart version:
logstash-7.9.0

Kubernetes version:
v1.16.3

Kubernetes provider: E.g. GKE (Google Kubernetes Engine)
on prem

Helm Version:
v3.2.4

helm get release output

e.g. helm get elasticsearch (replace elasticsearch with the name of your helm release)

Be careful to obfuscate every secrets (credentials, token, public IP, ...) that could be visible in the output before copy-pasting.

If you find some secrets in plain text in helm get release output you should use Kubernetes Secrets to managed them is a secure way (see Security Example).

Output of helm get release 
NAME: logstash-syslog
LAST DEPLOYED: Wed Sep  2 11:35:27 2020
NAMESPACE: naas-tele-dev
STATUS: deployed
REVISION: 3
TEST SUITE: None
USER-SUPPLIED VALUES:
antiAffinity: hard
antiAffinityTopologyKey: kubernetes.io/hostname
envFrom: []
extraContainers: ""
extraEnvs:
- name: MY_ENVIRONMENT_VAR
  value: dev-syslog
extraInitContainers: ""
extraPorts: []
extraVolumeMounts: ""
extraVolumes: ""
fullnameOverride: ""
httpPort: 9600
labels: {}
lifecycle: {}
livenessProbe:
  failureThreshold: 3
  httpGet:
    path: /
    port: http
  initialDelaySeconds: 300
  periodSeconds: 10
  successThreshold: 1
  timeoutSeconds: 5
logstashConfig:
  logstash.yml: |
    http.host: 0.0.0.0
    xpack.monitoring.enabled: false
logstashJavaOpts: -Xmx1g -Xms1g
logstashPipeline:
  logstash.conf: |
    input {
      udp {
        port => 5514
        type => "syslog"
      }
    }
    filter {
      if [type] == "syslog" {
        grok { match => { "message" => "%{SYSLOGLINE}" } }
        date { match => [ "timestamp", "MMM  d HH:mm:ss", "MMM dd HH:mm:ss" ] }
      }
    }
    output {elasticsearch {hosts => ["http://elasticsearch-master:9200"] index => "syslog"} }
maxUnavailable: 1
nameOverride: ""
nodeAffinity: {}
nodeSelector: {}
persistence:
  annotations: {}
  enabled: false
podAnnotations: {}
podManagementPolicy: Parallel
podSecurityContext:
  fsGroup: 1000
  runAsUser: 1000
podSecurityPolicy:
  create: false
  name: ""
  spec:
    fsGroup:
      rule: RunAsAny
    privileged: true
    runAsUser:
      rule: RunAsAny
    seLinux:
      rule: RunAsAny
    supplementalGroups:
      rule: RunAsAny
    volumes:
    - secret
    - configMap
    - persistentVolumeClaim
priorityClassName: ""
rbac:
  create: false
  serviceAccountAnnotations: {}
  serviceAccountName: ""
readinessProbe:
  failureThreshold: 3
  httpGet:
    path: /
    port: http
  initialDelaySeconds: 60
  periodSeconds: 10
  successThreshold: 3
  timeoutSeconds: 5
replicas: 1
resources:
  limits:
    cpu: 1000m
    memory: 1536Mi
  requests:
    cpu: 100m
    memory: 1536Mi
schedulerName: ""
secretMounts: []
secrets: []
securityContext:
  capabilities:
    drop:
    - ALL
  runAsNonRoot: true
  runAsUser: 1000
service:
  annotations: {}
  ports:
  - name: syslog-udp
    port: 514
    protocol: UDP
    targetPort: 5515
  type: ClusterIP
terminationGracePeriod: 120
tolerations: []
updateStrategy: RollingUpdate
volumeClaimTemplate:
  accessModes:
  - ReadWriteOnce
  resources:
    requests:
      storage: 100Gi

COMPUTED VALUES:
antiAffinity: hard
antiAffinityTopologyKey: kubernetes.io/hostname
envFrom: []
extraContainers: ""
extraEnvs:
- name: MY_ENVIRONMENT_VAR
  value: dev-syslog
extraInitContainers: ""
extraPorts: []
extraVolumeMounts: ""
extraVolumes: ""
fullnameOverride: ""
httpPort: 9600
image: docker.elastic.co/logstash/logstash
imagePullPolicy: IfNotPresent
imagePullSecrets: []
imageTag: 7.9.0
labels: {}
lifecycle: {}
livenessProbe:
  failureThreshold: 3
  httpGet:
    path: /
    port: http
  initialDelaySeconds: 300
  periodSeconds: 10
  successThreshold: 1
  timeoutSeconds: 5
logstashConfig:
  logstash.yml: |
    http.host: 0.0.0.0
    xpack.monitoring.enabled: false
logstashJavaOpts: -Xmx1g -Xms1g
logstashPipeline:
  logstash.conf: |
    input {
      udp {
        port => 5514
        type => "syslog"
      }
    }
    filter {
      if [type] == "syslog" {
        grok { match => { "message" => "%{SYSLOGLINE}" } }
        date { match => [ "timestamp", "MMM  d HH:mm:ss", "MMM dd HH:mm:ss" ] }
      }
    }
    output {elasticsearch {hosts => ["http://elasticsearch-master:9200"] index => "syslog"} }
maxUnavailable: 1
nameOverride: ""
nodeAffinity: {}
nodeSelector: {}
persistence:
  annotations: {}
  enabled: false
podAnnotations: {}
podManagementPolicy: Parallel
podSecurityContext:
  fsGroup: 1000
  runAsUser: 1000
podSecurityPolicy:
  create: false
  name: ""
  spec:
    fsGroup:
      rule: RunAsAny
    privileged: true
    runAsUser:
      rule: RunAsAny
    seLinux:
      rule: RunAsAny
    supplementalGroups:
      rule: RunAsAny
    volumes:
    - secret
    - configMap
    - persistentVolumeClaim
priorityClassName: ""
rbac:
  create: false
  serviceAccountAnnotations: {}
  serviceAccountName: ""
readinessProbe:
  failureThreshold: 3
  httpGet:
    path: /
    port: http
  initialDelaySeconds: 60
  periodSeconds: 10
  successThreshold: 3
  timeoutSeconds: 5
replicas: 1
resources:
  limits:
    cpu: 1000m
    memory: 1536Mi
  requests:
    cpu: 100m
    memory: 1536Mi
schedulerName: ""
secretMounts: []
secrets: []
securityContext:
  capabilities:
    drop:
    - ALL
  runAsNonRoot: true
  runAsUser: 1000
service:
  annotations: {}
  ports:
  - name: syslog-udp
    port: 514
    protocol: UDP
    targetPort: 5515
  type: ClusterIP
terminationGracePeriod: 120
tolerations: []
updateStrategy: RollingUpdate
volumeClaimTemplate:
  accessModes:
  - ReadWriteOnce
  resources:
    requests:
      storage: 100Gi

HOOKS:
MANIFEST:
---
# Source: logstash/templates/poddisruptionbudget.yaml
apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:
  name: "logstash-syslog-logstash-pdb"
  labels:
    app: "logstash-syslog-logstash"
    chart: "logstash"
    heritage: "Helm"
    release: "logstash-syslog"
spec:
  maxUnavailable: 1
  selector:
    matchLabels:
      app: "logstash-syslog-logstash"
---
# Source: logstash/templates/configmap-config.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: logstash-syslog-logstash-config
  labels:
    app: "logstash-syslog-logstash"
    chart: "logstash"
    heritage: "Helm"
    release: "logstash-syslog"
data:
  logstash.yml: |
    http.host: 0.0.0.0
    xpack.monitoring.enabled: false
---
# Source: logstash/templates/configmap-pipeline.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: logstash-syslog-logstash-pipeline
  labels:
    app: "logstash-syslog-logstash"
    chart: "logstash"
    heritage: "Helm"
    release: "logstash-syslog"
data:
  logstash.conf: |
    input {
      udp {
        port => 5514
        type => "syslog"
      }
    }
    filter {
      if [type] == "syslog" {
        grok { match => { "message" => "%{SYSLOGLINE}" } }
        date { match => [ "timestamp", "MMM  d HH:mm:ss", "MMM dd HH:mm:ss" ] }
      }
    }
    output {elasticsearch {hosts => ["http://elasticsearch-master:9200"] index => "syslog"} }
---
# Source: logstash/templates/service-headless.yaml
kind: Service
apiVersion: v1
metadata:
  name: "logstash-syslog-logstash-headless"
  labels:
    app: "logstash-syslog-logstash"
    chart: "logstash"
    heritage: "Helm"
    release: "logstash-syslog"
spec:
  clusterIP: None
  selector:
    app: "logstash-syslog-logstash"
  ports:
  - name: http
    port: 9600
---
# Source: logstash/templates/service.yaml
kind: Service
apiVersion: v1
metadata:
  name: "logstash-syslog-logstash"
  labels:
    app: "logstash-syslog-logstash"
    chart: "logstash"
    heritage: "Helm"
    release: "logstash-syslog"
  annotations:
    {}
spec:
  type: ClusterIP
  selector:
    app: "logstash-syslog-logstash"
    chart: "logstash"
    heritage: "Helm"
    release: "logstash-syslog"
  ports:
    - name: syslog-udp
      port: 514
      protocol: UDP
      targetPort: 5515
---
# Source: logstash/templates/statefulset.yaml
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: logstash-syslog-logstash
  labels:
    app: "logstash-syslog-logstash"
    chart: "logstash"
    heritage: "Helm"
    release: "logstash-syslog"
spec:
  serviceName: logstash-syslog-logstash-headless
  selector:
    matchLabels:
      app: "logstash-syslog-logstash"
      release: "logstash-syslog"
  replicas: 1
  podManagementPolicy: Parallel
  updateStrategy:
    type: RollingUpdate
  template:
    metadata:
      name: "logstash-syslog-logstash"
      labels:
        app: "logstash-syslog-logstash"
        chart: "logstash"
        heritage: "Helm"
        release: "logstash-syslog"
      annotations:
        configchecksum: 3c7dffd31dd4804cf26db421f63a59aa8654eddad0e100cfbe90fdc132db168
        pipelinechecksum: 4c5a966e1e2b10c5e73b15f97886c3c8fd9eb9f0662b12cff158ae27e34d50a
    spec:
      securityContext:
        fsGroup: 1000
        runAsUser: 1000
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
          - labelSelector:
              matchExpressions:
              - key: app
                operator: In
                values:
                - "logstash-syslog-logstash"
            topologyKey: kubernetes.io/hostname
      terminationGracePeriodSeconds: 120
      volumes:
        - name: logstashconfig
          configMap:
            name: logstash-syslog-logstash-config
        - name: logstashpipeline
          configMap:
            name: logstash-syslog-logstash-pipeline
      containers:
      - name: "logstash"
        securityContext:
          capabilities:
            drop:
            - ALL
          runAsNonRoot: true
          runAsUser: 1000
        image: "docker.elastic.co/logstash/logstash:7.9.0"
        imagePullPolicy: "IfNotPresent"
        livenessProbe:
          failureThreshold: 3
          httpGet:
            path: /
            port: http
          initialDelaySeconds: 300
          periodSeconds: 10
          successThreshold: 1
          timeoutSeconds: 5
        readinessProbe:
          failureThreshold: 3
          httpGet:
            path: /
            port: http
          initialDelaySeconds: 60
          periodSeconds: 10
          successThreshold: 3
          timeoutSeconds: 5
        ports:
        - name: http
          containerPort: 9600
        resources:
          limits:
            cpu: 1000m
            memory: 1536Mi
          requests:
            cpu: 100m
            memory: 1536Mi
        env:
          - name: LS_JAVA_OPTS
            value: "-Xmx1g -Xms1g"
          - name: MY_ENVIRONMENT_VAR
            value: dev-syslog
        volumeMounts:
          - name: logstashconfig
            mountPath: /usr/share/logstash/config/logstash.yml
            subPath: logstash.yml
          - name: logstashpipeline
            mountPath: /usr/share/logstash/pipeline/logstash.conf
            subPath: logstash.conf

Describe the bug:
When I try and pass the values for extraPorts: helm upgrade gives me this validation error.

Error: UPGRADE FAILED: error validating "": error validating data: [ValidationError(Service.spec.ports[1]): unknown field "containerPort" in io.k8s.api.core.v1.ServicePort, ValidationError(Service.spec.ports[1]): missing required field "port" in io.k8s.api.core.v1.ServicePort]

Steps to reproduce:

  1. Update values file with extraports
extraPorts: 
  - name: syslogs
    containerPort: 5515
  1. helm upgrade logstash-syslog elastic/logstash --values ~/Documents/kube-elk-helm/logstash/values-dev-syslog.yaml

Expected behavior:
It should add other ports for the pod so I can intake syslogs.

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