CODEWITHSUNDEEP
kuberneteskubernetes-helm
softshipper
softshipper

Reputation: 34099

Slice in helm no matches found

I have the following define definition in helm:

{{- define "svc.envVars" -}}
{{- range .Values.envVars.withSecret }}
- name: {{ .key }}
  valueFrom:
    secretKeyRef:
      name: {{ .secretName }}
      key: {{ .secretKey | quote }}
{{- end }}
{{- range .Values.envVars.withoutSecret }}
- name: {{ .name }}
  value: {{ .value | quote }}
{{- end }}
{{- end }}

and I am going to use it in deployment.yaml

  containers:
    - name: {{ .Release.Name }}
      image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
      imagePullPolicy: {{ .Values.image.pullPolicy }}
      {{- if .Values.envVars.enabled }}
      env:
      {{- include "svc.envVars" . | indent 10 }} 
      {{- end }}
      ports:
        - name: http
          containerPort: 8080
          protocol: TCP
      livenessProbe:
        httpGet:
          path: /
          port: http
      readinessProbe:
        httpGet:
          path: /
          port: http
      resources:
        {{- toYaml .Values.resources | nindent 12 }}

in values.yaml it is defined as follows:

envVars:
  enabled: false
  withSecret: []
  withoutSecret: []

then I tried to render:

helm template --debug user-svc \
  --set image.tag=0.1.0 \
  --set image.repository=user-svc \
  --set envVars.enabled=true \
  --set envVars.withSecret[0].key=POSTGRES_URL,envVars.withSecret[0].secretName=postgres_name,envVars.withSecret[0].secretKey=postgres_pw \
  --set envVars.withSecret[1].key=MYSQL_URL,envVars.withSecret[1].secretName=mysql_name,envVars.withSecret[1].secretKey=mysql_pw \
  ./svc

it shows me:

zsh: no matches found: envVars.withSecret[0].key=POSTGRES_URL,envVars.withSecret[0].secretName=postgres_name,envVars.withSecret[0].secretKey=postgres_pw

When I set the variables manually in values.yaml:

envVars:
  enabled: false
  withSecret:
    - key: POSTGRES_URL
      secretName: postgres_name
      secretKey: postgres_pw
    - key: MYSQL_URL
      secretName: mysql_name
      secretKey: mysql_pw  
  withoutSecret:
    - name: NOT_SECRET
      value: "Value of not serect"

then render it with:

helm template --debug user-svc \
  --set image.tag=0.1.0 \
  --set image.repository=user-svc \
  --set envVars.enabled=true \
  ./svc

then it works as expected.

What am I doing wrong?

Upvotes: 7

Views: 2170

Answers (1)

Horace P. Greeley
Horace P. Greeley

Reputation: 952

I had the same issue. Due to the fact, that ´[´ and ´]´ are interpreted by zsh. You can use noglob to disable the globals. So, ´[´ and ´]´ are not interpreted.

noglob helm template --set lorem[0].ipsum=1337

In your example:

noglob helm template --debug user-svc \
  --set image.tag=0.1.0 \
  --set image.repository=user-svc \
  --set envVars.enabled=true \
  --set envVars.withSecret[0].key=POSTGRES_URL,envVars.withSecret[0].secretName=postgres_name,envVars.withSecret[0].secretKey=postgres_pw \
  --set envVars.withSecret[1].key=MYSQL_URL,envVars.withSecret[1].secretName=mysql_name,envVars.withSecret[1].secretKey=mysql_pw \
  ./svc

Sources:

Upvotes: 16

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