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59437d6d83
Filter the default list down to IPv4/IPv6 depending on the network configuration. The problem is that the full list contains IPv6 resolvers and these won't work on IPv4-only network (which is default for `talosctl cluster create`). This is not a problem for QEMU, as QEMU filters down the list for built-in DHCP server already splitting it for DHCP4/DHCP6. Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>
100 lines
2.6 KiB
Go
100 lines
2.6 KiB
Go
// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// Package docker implements Provisioner via docker.
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package docker
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import (
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"context"
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"runtime"
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"github.com/docker/docker/client"
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"github.com/talos-systems/talos/pkg/machinery/config/types/v1alpha1"
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"github.com/talos-systems/talos/pkg/machinery/config/types/v1alpha1/generate"
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"github.com/talos-systems/talos/pkg/provision"
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)
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type provisioner struct {
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client *client.Client
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}
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// NewProvisioner initializes docker provisioner.
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func NewProvisioner(ctx context.Context) (provision.Provisioner, error) {
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p := &provisioner{}
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var err error
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p.client, err = client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
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if err != nil {
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return nil, err
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}
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return p, nil
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}
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// Close and release resources.
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func (p *provisioner) Close() error {
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if p.client != nil {
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return p.client.Close()
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}
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return nil
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}
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// GenOptions provides a list of additional config generate options.
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func (p *provisioner) GenOptions(networkReq provision.NetworkRequest) []generate.GenOption {
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nameservers := make([]string, 0, len(networkReq.Nameservers))
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hasV4 := false
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hasV6 := false
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for _, subnet := range networkReq.CIDRs {
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if subnet.IP.To4() == nil {
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hasV6 = true
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} else {
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hasV4 = true
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}
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}
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// filter nameservers by IPv4/IPv6
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for i := range networkReq.Nameservers {
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if networkReq.Nameservers[i].To4() == nil && hasV6 {
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nameservers = append(nameservers, networkReq.Nameservers[i].String())
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} else if networkReq.Nameservers[i].To4() != nil && hasV4 {
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nameservers = append(nameservers, networkReq.Nameservers[i].String())
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}
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}
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return []generate.GenOption{
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generate.WithPersist(false),
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generate.WithNetworkOptions(
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v1alpha1.WithNetworkInterfaceIgnore("eth0"),
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v1alpha1.WithNetworkNameservers(nameservers...),
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),
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}
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}
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// GetLoadBalancers returns internal/external loadbalancer endpoints.
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func (p *provisioner) GetLoadBalancers(networkReq provision.NetworkRequest) (internalEndpoint, externalEndpoint string) {
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// docker doesn't provide internal LB, so return empty string
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// external LB is always localhost for OS X where docker exposes ports
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switch runtime.GOOS {
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case "darwin":
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return "", "127.0.0.1"
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default:
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return "", ""
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}
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}
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// UserDiskName not implemented for docker.
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func (p *provisioner) UserDiskName(index int) string {
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return ""
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}
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// GetFirstInterface returns first network interface name.
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func (p *provisioner) GetFirstInterface() string {
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return "eth0"
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}
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