diff not showing changes with values that contain # (hash)

[LeonD9]

Hey,
when running helmfile diff command on values.yaml that look like this:

ingress:
  rules:
  - host: test
    paths:
    - path: /example
      backend:
        actions:
          type: redirect
          redirectConfig:
            host: example.com
            path: '/#{path}'
            port: '443'
            protocol: HTTPS
            query: '#{query}'
            statusCode: HTTP_302

while using this template:

    {{- range $rule := .Values.ingress.rules }}
    {{- $index := 0 }}
    {{- range $path := $rule.paths }}
    {{- if or .backend.actions .backend.conditions }}
    {{- $index = add $index 1 }}
    {{- end }}
    {{- if $path.backend.actions }}
    alb.ingress.kubernetes.io/actions.rule-{{ $index }}: {{ $path.backend.actions | toJson | squote }}
    {{- end }}
    {{- if $path.backend.conditions }}
    alb.ingress.kubernetes.io/conditions.rule-{{ $index }}: {{ $path.backend.conditions | toJson | squote }}
    {{- end }}
    {{- end }}
    {{- end }}

I don't see the diff, but when running helmfile template i do see the changes being applied and also after running helmfile apply the changes were applied, they look like this from the template run:

    alb.ingress.kubernetes.io/actions.rule-3: '{"redirectConfig":{"host":"example.com","path":"/#{path}","port":"443","protocol":"HTTPS","query":"#{query}"},"type":"redirect"}'

when i change query and path values to not include # i am able to see the diff which means that for some reason # is ignored in diff run.
is this a bug? or its intended to ignore values that contain # (hash)?

[yxxhero]

@LeonD9 thanks for your issue. maybe this is a bug. could you post an demo for debuging?

[LeonD9]

@yxxhero you can use the values and helm template i put in the description of this issue.

[yxxhero]

@LeonD9 I need whole chart and values to debug and find the issue quickly. thanks so much.

[LeonD9]

This is the helm template i am using:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: test
  labels:
   environment: test
  annotations:
    {{- range $rule := .Values.ingress.rules }}
    {{- $index := 0 }}
    {{- range $path := $rule.paths }}
    {{- if or .backend.actions .backend.conditions }}
    {{- $index = add $index 1 }}
    {{- end }}
    {{- if $path.backend.actions }}
    alb.ingress.kubernetes.io/actions.rule-{{ $index }}: {{ $path.backend.actions | toJson | squote }}
    {{- end }}
    {{- if $path.backend.conditions }}
    alb.ingress.kubernetes.io/conditions.rule-{{ $index }}: {{ $path.backend.conditions | toJson | squote }}
    {{- end }}
    {{- end }}
    {{- end }}
spec:
  rules:
  {{- range $key, $value := .Values.ingress.rules }}
  {{- $index := 0 }}
  - http:
      paths:
      {{- range .paths }}
      {{- if or .backend.actions .backend.conditions }}
      {{- $index = add $index 1 }}
      {{- end }}
      - path: {{ .path }}
        pathType: ImplementationSpecific
        backend:
          service:
            name: {{ if or .backend.actions .backend.conditions }}rule-{{ $index }}{{ else }}http-service{{ end }}
            port:
              name: {{ if or .backend.actions .backend.conditions }}use-annotation{{- else }}http{{ end }}
      {{- end }}
    {{- if .host }}
    host: {{ .host }}
    {{- end }}
  {{- end }}

And this is my values.yaml:

ingress:
  rules:
  - host: test
    paths:
    - path: /example
      backend:
        actions:
          type: redirect
          redirectConfig:
            host: example.com
            path: '/#{path}'
            port: '443'
            protocol: HTTPS
            query: '#{query}'
            statusCode: HTTP_302

@yxxhero please check if it helps you debug this issue.

[yxxhero]

@LeonD9 sorry. I can't reproduce your issue.

[LeonD9]

@yxxhero I checked again and i can reproduce it using this chart and values:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: test
  labels:
   environment: test
  annotations:
    {{- range $rule := .Values.ingress.rules }}
    {{- $index := 0 }}
    {{- range $path := $rule.paths }}
    {{- if or .backend.actions .backend.conditions }}
    {{- $index = add $index 1 }}
    {{- end }}
    {{- if $path.backend.actions }}
    alb.ingress.kubernetes.io/actions.rule-{{ $index }}: {{ $path.backend.actions | toJson | squote }}
    {{- end }}
    {{- if $path.backend.conditions }}
    alb.ingress.kubernetes.io/conditions.rule-{{ $index }}: {{ $path.backend.conditions | toJson | squote }}
    {{- end }}
    {{- end }}
    {{- end }}
spec:
  rules:
  {{- range $key, $value := .Values.ingress.rules }}
  {{- $index := 0 }}
  - http:
      paths:
      {{- range .paths }}
      {{- if or .backend.actions .backend.conditions }}
      {{- $index = add $index 1 }}
      {{- end }}
      - path: {{ .path }}
        pathType: ImplementationSpecific
        backend:
          service:
            name: {{ if or .backend.actions .backend.conditions }}rule-{{ $index }}{{ else }}http-service{{ end }}
            port:
              name: {{ if or .backend.actions .backend.conditions }}use-annotation{{- else }}http{{ end }}
      {{- end }}
    {{- if .host }}
    host: {{ .host }}
    {{- end }}
  {{- end }}

values.yaml:

ingress:
  rules:
  - host: test
    paths:
    - path: /example
      backend:
        actions:
          type: redirect
          redirectConfig:
            host: example.com
            path: '/#{path}'
            port: '443'
            protocol: HTTPS
            query: '#{query}'
            statusCode: HTTP_302

the expected output should be:

alb.ingress.kubernetes.io/actions.rule-1: '{"redirectConfig":{"host":"example.com","path":"/#{path}","port":"443","protocol":"HTTPS","query":"#{query}","statusCode":"HTTP_302"},"type":"redirect"}'

Instead i don't see any output but when i change the values.yaml to this:

ingress:
  rules:
  - host: test
    paths:
    - path: /example
      backend:
        actions:
          type: redirect
          redirectConfig:
            host: example.com
            path: path
            port: '443'
            protocol: HTTPS
            query: query
            statusCode: HTTP_302

I see the correct output:

alb.ingress.kubernetes.io/actions.rule-1: '{"redirectConfig":{"host":"example.com","path":"path","port":"443","protocol":"HTTPS","query":"query","statusCode":"HTTP_302"},"type":"redirect"}'

which seems like helm diff doesn't know how to handle # values.