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openstack: find node CIDR with multiple subnets

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This commit is contained in:
Malte Poll 2024-02-15 10:43:48 +01:00
parent d8185fdafb
commit 31f65fb486
6 changed files with 124 additions and 36 deletions
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38
internal/cloud/openstack/openstack.go
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@ -19,6 +19,7 @@ import (
"github.com/edgelesssys/constellation/v2/internal/constants"
"github.com/edgelesssys/constellation/v2/internal/role"
"github.com/gophercloud/gophercloud/openstack/compute/v2/servers"
"github.com/gophercloud/gophercloud/openstack/networking/v2/networks"
"github.com/gophercloud/gophercloud/openstack/networking/v2/subnets"
"github.com/gophercloud/utils/openstack/clientconfig"
)
@ -71,17 +72,17 @@ func New(ctx context.Context) (*Cloud, error) {
}
serversClient.Microversion = microversion
subnetsClient, err := clientconfig.NewServiceClient("network", clientOpts)
networksClient, err := clientconfig.NewServiceClient("network", clientOpts)
if err != nil {
return nil, fmt.Errorf("creating network client: %w", err)
}
subnetsClient.Microversion = microversion
networksClient.Microversion = microversion
return &Cloud{
imds: imds,
api: &apiClient{
servers: serversClient,
subnets: subnetsClient,
servers: serversClient,
networks: networksClient,
},
}, nil
}
@ -308,22 +309,43 @@ func (c *Cloud) getLoadBalancerHost(ctx context.Context) (string, error) {
}
func (c *Cloud) getSubnetCIDR(uidTag string) (netip.Prefix, error) {
listNetworksOpts := networks.ListOpts{Tags: uidTag}
networksPage, err := c.api.ListNetworks(listNetworksOpts).AllPages()
if err != nil {
return netip.Prefix{}, fmt.Errorf("listing networks: %w", err)
}
nets, err := networks.ExtractNetworks(networksPage)
if err != nil {
return netip.Prefix{}, fmt.Errorf("extracting networks: %w", err)
}
if len(nets) != 1 {
return netip.Prefix{}, fmt.Errorf("expected exactly one network, got %d", len(nets))
}
listSubnetsOpts := subnets.ListOpts{Tags: uidTag}
subnetsPage, err := c.api.ListSubnets(listSubnetsOpts).AllPages()
if err != nil {
return netip.Prefix{}, fmt.Errorf("listing subnets: %w", err)
}
nets, err := subnets.ExtractSubnets(subnetsPage)
snets, err := subnets.ExtractSubnets(subnetsPage)
if err != nil {
return netip.Prefix{}, fmt.Errorf("extracting subnets: %w", err)
}
if len(nets) != 1 {
return netip.Prefix{}, fmt.Errorf("expected exactly one subnet, got %d", len(nets))
if len(snets) < 1 {
return netip.Prefix{}, fmt.Errorf("expected at least one subnet, got %d", len(snets))
}
cidr, err := netip.ParsePrefix(nets[0].CIDR)
var rawCIDR string
for _, n := range snets {
if n.Name == nets[0].Name {
rawCIDR = n.CIDR
break
}
}
cidr, err := netip.ParsePrefix(rawCIDR)
if err != nil {
return netip.Prefix{}, fmt.Errorf("parsing subnet CIDR: %w", err)
}