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76c2038b13
This PR contains generic simple TCP loadbalancer code, and glue code for firecracker provisioner to use this loadbalancer. K8s control plane is passed through the load balancer, and Talos API is passed only to the init node (for now, as some APIs, including kubeconfig, don't work with non-init node). Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
55 lines
1.4 KiB
Go
55 lines
1.4 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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"github.com/docker/docker/client"
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"github.com/talos-systems/talos/internal/pkg/provision"
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"github.com/talos-systems/talos/pkg/config/types/v1alpha1/generate"
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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.NewEnvClient()
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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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return nil
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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 where docker exposes ports
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return "", "127.0.0.1"
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}
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