twellck opened a new issue, #920:
URL: https://github.com/apache/apisix-helm-chart/issues/920
## Description
When configuring APISIX to bind to IPv6 addresses using `[::]` in
values.yaml, the generated ConfigMap contains unquoted values which causes YAML
parsing errors in APISIX.
## Environment
- Helm Chart Version: 2.12.4
- Kubernetes Version: 1.34
- Helm Version: 3.18.4 (Through terraform's helm provider)
## Steps to Reproduce
1. Set in values.yaml:
```yaml
apisix:
admin:
ip: "[::]"
allow:
ipList:
- "::/0"
```
2. Deploy the chart: `helm install apisix apisix/apisix -f values.yaml`
3. Check APISIX pod logs or ConfigMap
4. Observe YAML parsing error
## Expected Behavior
IPv6 addresses should be properly quoted in the generated ConfigMap:
```yaml
ip: "[::]"
admin:
allow_admin:
- "::/0"
```
## Actual Behavior
ConfigMap contains unquoted values that fail YAML parsing:
```yaml
ip: [::] # Invalid YAML - interpreted as flow sequence
admin:
allow_admin:
- ::/0
```
## Root Cause
The ConfigMap template does not force quotation of IP addresses in listeners
or the admin allow list. YAML interprets `[` as the start of a flow sequence,
making `[::]` invalid syntax without quotes.
Examples from the template:
```yaml
ip: {{ .Values.apisix.admin.ip }}
```
```yaml
{{- range $ips := .Values.apisix.admin.allow.ipList }}
- {{ $ips }}
{{- end }}
```
## Current Workaround
Manually add escaped quotes in values.yaml:
```yaml
apisix:
admin:
ip: "\"[::]\""
allow:
ipList:
- "\"::/0\""
```
Or use the `--set-string` flag:
```bash
helm install apisix apisix/apisix --set-string apisix.admin.ip='[::]'
```
## Proposed Solution
Wrap relevant configmap sections such as IP address template values with
quotes:
```yaml
ip: {{ .Values.apisix.admin.ip | quote }}
```
```yaml
{{- range $ips := .Values.apisix.admin.allow.ipList }}
- {{ $ips | quote }}
{{- end }}
```
---
**I'm happy to submit a PR for this fix if helpful. This may be combined
with my other issue which also touches the ConfigMap template file.**
---
*Note: AI helped format this issue. The issue identification and proposed
solutions are my own work.*
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