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stackit: add k8s api load balancer (#2925)
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3u13r
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parent
62acec17f6
commit
2a61861a1c
20 changed files with 298 additions and 378 deletions
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@ -465,203 +465,18 @@ func TestInitSecretHash(t *testing.T) {
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}
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func TestGetLoadBalancerEndpoint(t *testing.T) {
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// newTestAddrs returns a set of raw server addresses as we would get from
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// a ListServers call and as expected by the parseSeverAddresses function.
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// The hardcoded addresses don't match what we are looking for. A valid
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// address can be injected. You can pass a second valid address to test
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// that the first valid one is chosen.
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newTestAddrs := func(floatingIP1, floatingIP2 string, fixedIP1 string) map[string]any {
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return map[string]any{
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"network1": []any{
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map[string]any{
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"addr": "192.0.2.2",
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"version": 4,
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"OS-EXT-IPS:type": "floating",
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"OS-EXT-IPS-MAC:mac_addr": "fa:16:3e:0c:0c:0c",
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},
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},
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"network2": []any{
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map[string]any{
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"addr": fixedIP1,
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"version": 4,
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"OS-EXT-IPS:type": "fixed",
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"OS-EXT-IPS-MAC:mac_addr": "fa:16:3e:0c:0c:0c",
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},
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map[string]any{
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"addr": "2001:db8:3333:4444:5555:6666:7777:8888",
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"version": 6,
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"OS-EXT-IPS:type": "floating",
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"OS-EXT-IPS-MAC:mac_addr": "fa:16:3e:0c:0c:0c",
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},
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map[string]any{
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"addr": floatingIP1,
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"version": 4,
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"OS-EXT-IPS:type": "floating",
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"OS-EXT-IPS-MAC:mac_addr": "fa:16:3e:0c:0c:0c",
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},
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map[string]any{
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"addr": floatingIP2,
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"version": 4,
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"OS-EXT-IPS:type": "floating",
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"OS-EXT-IPS-MAC:mac_addr": "fa:16:3e:0c:0c:0c",
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},
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},
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}
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}
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testCases := map[string]struct {
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imds *stubIMDSClient
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api *stubServersClient
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wantHost string
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wantErr bool
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imds *stubIMDSClient
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want string
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wantErr bool
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}{
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"error returned from IMDS client": {
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imds: &stubIMDSClient{uidErr: errors.New("failed")},
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imds: &stubIMDSClient{loadBalancerEndpointErr: errors.New("failed")},
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wantErr: true,
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},
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"error returned from getSubnetCIDR": {
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imds: &stubIMDSClient{},
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api: &stubServersClient{
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netsPager: newNetPager([]networks.Network{{Name: "mynet"}}, nil),
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subnetsPager: newSubnetPager(nil, errors.New("failed")),
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},
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wantErr: true,
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},
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"error returned from getServers": {
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imds: &stubIMDSClient{},
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api: &stubServersClient{
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netsPager: newNetPager([]networks.Network{{Name: "mynet"}}, nil),
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subnetsPager: newSubnetPager([]subnets.Subnet{{Name: "mynet", CIDR: "192.0.2.0/24"}}, nil),
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serversPager: newSeverPager(nil, errors.New("failed")),
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},
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wantErr: true,
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},
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"sever with empty name skipped": {
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imds: &stubIMDSClient{},
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api: &stubServersClient{
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netsPager: newNetPager([]networks.Network{{Name: "mynet"}}, nil),
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subnetsPager: newSubnetPager([]subnets.Subnet{{Name: "mynet", CIDR: "192.0.2.0/24"}}, nil),
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serversPager: newSeverPager([]servers.Server{
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{
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ID: "id1",
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Tags: &[]string{"constellation-role-control-plane", "constellation-uid-7777"},
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Addresses: newTestAddrs("198.51.100.0", "", "192.0.2.1"),
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},
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}, nil),
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},
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wantErr: true,
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},
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"server with empty ID skipped": {
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imds: &stubIMDSClient{},
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api: &stubServersClient{
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netsPager: newNetPager([]networks.Network{{Name: "mynet"}}, nil),
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subnetsPager: newSubnetPager([]subnets.Subnet{{Name: "mynet", CIDR: "192.0.2.0/24"}}, nil),
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serversPager: newSeverPager([]servers.Server{
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{
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Name: "name1",
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Tags: &[]string{"constellation-role-control-plane", "constellation-uid-7777"},
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Addresses: newTestAddrs("198.51.100.0", "", "192.0.2.1"),
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},
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}, nil),
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},
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wantErr: true,
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},
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"sever with nil tags skipped": {
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imds: &stubIMDSClient{},
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api: &stubServersClient{
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netsPager: newNetPager([]networks.Network{{Name: "mynet"}}, nil),
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subnetsPager: newSubnetPager([]subnets.Subnet{{Name: "mynet", CIDR: "192.0.2.0/24"}}, nil),
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serversPager: newSeverPager([]servers.Server{
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{
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Name: "name1",
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ID: "id1",
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Addresses: newTestAddrs("198.51.100.0", "", "192.0.2.1"),
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},
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}, nil),
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},
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wantErr: true,
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},
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"server has invalid address": {
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imds: &stubIMDSClient{},
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api: &stubServersClient{
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netsPager: newNetPager([]networks.Network{{Name: "mynet"}}, nil),
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subnetsPager: newSubnetPager([]subnets.Subnet{{Name: "mynet", CIDR: "192.0.2.0/24"}}, nil),
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serversPager: newSeverPager([]servers.Server{
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{
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Name: "name1",
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ID: "id1",
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Tags: &[]string{"constellation-role-control-plane", "constellation-uid-7777"},
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Addresses: newTestAddrs("", "", "invalidIP"),
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},
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}, nil),
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},
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wantErr: true,
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},
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"server without parseable addresses skipped": {
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imds: &stubIMDSClient{},
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api: &stubServersClient{
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netsPager: newNetPager([]networks.Network{{Name: "mynet"}}, nil),
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subnetsPager: newSubnetPager([]subnets.Subnet{{Name: "mynet", CIDR: "192.0.2.0/24"}}, nil),
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serversPager: newSeverPager([]servers.Server{
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{
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Name: "name1",
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ID: "id1",
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Tags: &[]string{"constellation-role-control-plane", "constellation-uid-7777"},
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Addresses: map[string]any{
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"somekey": "invalid",
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},
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},
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}, nil),
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},
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wantErr: true,
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},
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"invalid endpoint returned from server addresses": {
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imds: &stubIMDSClient{},
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api: &stubServersClient{
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netsPager: newNetPager([]networks.Network{{Name: "mynet"}}, nil),
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subnetsPager: newSubnetPager([]subnets.Subnet{{Name: "mynet", CIDR: "192.0.2.0/24"}}, nil),
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serversPager: newSeverPager([]servers.Server{
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{
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Name: "name1",
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ID: "id1",
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Tags: &[]string{"constellation-role-control-plane", "constellation-uid-7777"},
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Addresses: newTestAddrs("invalidIP", "", "192.0.2.1"),
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},
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}, nil),
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},
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wantErr: true,
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},
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"valid endpoint returned from server addresses not in subnet CIDR": {
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imds: &stubIMDSClient{},
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api: &stubServersClient{
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netsPager: newNetPager([]networks.Network{{Name: "mynet"}}, nil),
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subnetsPager: newSubnetPager([]subnets.Subnet{{Name: "mynet", CIDR: "192.0.2.0/24"}}, nil),
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serversPager: newSeverPager([]servers.Server{
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{
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Name: "name1",
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ID: "id1",
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Tags: &[]string{"constellation-role-control-plane", "constellation-uid-7777"},
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Addresses: newTestAddrs("198.51.100.0", "", "192.0.2.1"),
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},
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}, nil),
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},
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wantHost: "198.51.100.0",
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},
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"first valid endpoint returned from server addresses not in subnet CIDR": {
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imds: &stubIMDSClient{},
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api: &stubServersClient{
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netsPager: newNetPager([]networks.Network{{Name: "mynet"}}, nil),
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subnetsPager: newSubnetPager([]subnets.Subnet{{Name: "mynet", CIDR: "192.0.2.0/24"}}, nil),
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serversPager: newSeverPager([]servers.Server{
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{
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Name: "name1",
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ID: "id1",
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Tags: &[]string{"constellation-role-control-plane", "constellation-uid-7777"},
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Addresses: newTestAddrs("198.51.100.0", "198.51.100.1", "192.0.2.1"),
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},
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}, nil),
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},
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wantHost: "198.51.100.0",
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"UID returned from IMDS client": {
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imds: &stubIMDSClient{loadBalancerEndpointResult: "some.endpoint"},
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want: "some.endpoint",
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},
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}
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@ -669,19 +484,15 @@ func TestGetLoadBalancerEndpoint(t *testing.T) {
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t.Run(name, func(t *testing.T) {
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assert := assert.New(t)
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c := &Cloud{
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imds: tc.imds,
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api: tc.api,
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}
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c := &Cloud{imds: tc.imds}
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gotHost, gotPort, err := c.GetLoadBalancerEndpoint(context.Background())
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got, _, err := c.GetLoadBalancerEndpoint(context.Background())
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if tc.wantErr {
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assert.Error(err)
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} else {
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assert.NoError(err)
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assert.Equal(tc.wantHost, gotHost)
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assert.Equal("6443", gotPort)
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assert.Equal(tc.want, got)
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}
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})
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}
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