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filter terraform output routerIP for v4 addresses only #936

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filter terraform output routerIP for v4 addresses only #936

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filter terraform output routerIP for v4 addresses only
lotharbach Dec 17, 2024
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lotharbach Jan 16, 2025
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10 changes: 8 additions & 2 deletions pkg/internal/infrastructure/templates/main.tpl.tf
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Original file line number Diff line number Diff line change
Expand Up @@ -227,10 +227,16 @@ openstack_networking_network_v2.cluster.name
data.openstack_networking_network_v2.cluster.name
{{ end -}}
{{- end -}}

// Openstack API could return an IPv6 external IP even for v4-only clusters see
// https://github.com/gardener/gardener-extension-provider-openstack/issues/897
// We filter for IPs that match the v4 pattern (4 numbers seperated by dots)
// and only return one just in case there are mulitple as the rest of the
// codebase is currently expecting a single v4 IP
{{- define "router-ip" -}}
{{ if .create.router -}}
openstack_networking_router_v2.router.external_fixed_ip[0].ip_address
one([for external_fixed_ip in openstack_networking_router_v2.router.external_fixed_ip : external_fixed_ip.ip_address if can(regex("^(?:[0-9]{1,3}\\.){3}[0-9]{1,3}$", external_fixed_ip.ip_address))])
{{ else -}}
data.openstack_networking_router_v2.router.external_fixed_ip[0].ip_address
one([for external_fixed_ip in data.openstack_networking_router_v2.router.external_fixed_ip : external_fixed_ip.ip_address if can(regex("^(?:[0-9]{1,3}\\.){3}[0-9]{1,3}$", external_fixed_ip.ip_address))])
{{ end -}}
{{- end -}}
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