consul/agent/hcp/config/config.go

121 lines
2.7 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: BUSL-1.1
package config
import (
"crypto/tls"
"github.com/hashicorp/consul/types"
hcpcfg "github.com/hashicorp/hcp-sdk-go/config"
"github.com/hashicorp/hcp-sdk-go/resource"
)
// CloudConfigurer abstracts the cloud config methods needed to connect to HCP
// in an interface for easier testing.
type CloudConfigurer interface {
HCPConfig(opts ...hcpcfg.HCPConfigOption) (hcpcfg.HCPConfig, error)
Resource() (resource.Resource, error)
}
// CloudConfig defines configuration for connecting to HCP services
type CloudConfig struct {
ResourceID string
ClientID string
ClientSecret string
Hostname string
AuthURL string
ScadaAddress string
// Management token used by HCP management plane.
// Cannot be set via config files.
ManagementToken string
// TlsConfig for testing.
TLSConfig *tls.Config
NodeID types.NodeID
NodeName string
}
func (c *CloudConfig) WithTLSConfig(cfg *tls.Config) {
c.TLSConfig = cfg
}
func (c *CloudConfig) Resource() (resource.Resource, error) {
return resource.FromString(c.ResourceID)
}
func (c *CloudConfig) HCPConfig(opts ...hcpcfg.HCPConfigOption) (hcpcfg.HCPConfig, error) {
if c.TLSConfig == nil {
c.TLSConfig = &tls.Config{}
}
if c.ClientID != "" && c.ClientSecret != "" {
opts = append(opts, hcpcfg.WithClientCredentials(c.ClientID, c.ClientSecret))
}
if c.AuthURL != "" {
opts = append(opts, hcpcfg.WithAuth(c.AuthURL, c.TLSConfig))
}
if c.Hostname != "" {
opts = append(opts, hcpcfg.WithAPI(c.Hostname, c.TLSConfig))
}
if c.ScadaAddress != "" {
opts = append(opts, hcpcfg.WithSCADA(c.ScadaAddress, c.TLSConfig))
}
opts = append(opts, hcpcfg.FromEnv(), hcpcfg.WithoutBrowserLogin())
return hcpcfg.NewHCPConfig(opts...)
}
// IsConfigured returns whether the cloud configuration has been set either
// in the configuration file or via environment variables.
func (c *CloudConfig) IsConfigured() bool {
return c.ResourceID != "" && c.ClientID != "" && c.ClientSecret != ""
}
// Merge returns a cloud configuration that is the combined the values of
// two configurations.
func Merge(o CloudConfig, n CloudConfig) CloudConfig {
c := o
if n.ResourceID != "" {
c.ResourceID = n.ResourceID
}
if n.ClientID != "" {
c.ClientID = n.ClientID
}
if n.ClientSecret != "" {
c.ClientSecret = n.ClientSecret
}
if n.Hostname != "" {
c.Hostname = n.Hostname
}
if n.AuthURL != "" {
c.AuthURL = n.AuthURL
}
if n.ScadaAddress != "" {
c.ScadaAddress = n.ScadaAddress
}
if n.ManagementToken != "" {
c.ManagementToken = n.ManagementToken
}
if n.TLSConfig != nil {
c.TLSConfig = n.TLSConfig
}
if n.NodeID != "" {
c.NodeID = n.NodeID
}
if n.NodeName != "" {
c.NodeName = n.NodeName
}
return c
}