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exoscale.go
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exoscale.go
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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
// Package exoscale contains the Exoscale platform implementation.
package exoscale
import (
"context"
"fmt"
"log"
"net/netip"
"strings"
"github.com/cosi-project/runtime/pkg/state"
"github.com/siderolabs/go-procfs/procfs"
"github.com/siderolabs/talos/internal/app/machined/pkg/runtime"
"github.com/siderolabs/talos/internal/app/machined/pkg/runtime/v1alpha1/platform/errors"
"github.com/siderolabs/talos/internal/app/machined/pkg/runtime/v1alpha1/platform/internal/netutils"
"github.com/siderolabs/talos/pkg/download"
"github.com/siderolabs/talos/pkg/machinery/constants"
"github.com/siderolabs/talos/pkg/machinery/resources/network"
runtimeres "github.com/siderolabs/talos/pkg/machinery/resources/runtime"
)
// Exoscale is the concrete type that implements the runtime.Platform interface.
type Exoscale struct{}
// ParseMetadata converts Exoscale platform metadata into platform network config.
func (e *Exoscale) ParseMetadata(metadata *MetadataConfig) (*runtime.PlatformNetworkConfig, error) {
networkConfig := &runtime.PlatformNetworkConfig{}
if metadata.Hostname != "" {
hostnameSpec := network.HostnameSpecSpec{
ConfigLayer: network.ConfigPlatform,
}
if err := hostnameSpec.ParseFQDN(metadata.Hostname); err != nil {
return nil, err
}
networkConfig.Hostnames = append(networkConfig.Hostnames, hostnameSpec)
}
if metadata.PublicIPv4 != "" {
if ip, err := netip.ParseAddr(metadata.PublicIPv4); err == nil {
networkConfig.ExternalIPs = append(networkConfig.ExternalIPs, ip)
}
}
networkConfig.Metadata = &runtimeres.PlatformMetadataSpec{
Platform: e.Name(),
Hostname: metadata.Hostname,
Region: metadata.Zone,
Zone: metadata.Zone,
InstanceType: strings.ToLower(strings.SplitN(metadata.InstanceType, " ", 2)[0]),
InstanceID: metadata.InstanceID,
ProviderID: fmt.Sprintf("exoscale://%s", metadata.InstanceID),
}
return networkConfig, nil
}
// Name implements the runtime.Platform interface.
func (e *Exoscale) Name() string {
return "exoscale"
}
// Configuration implements the runtime.Platform interface.
func (e *Exoscale) Configuration(ctx context.Context, r state.State) ([]byte, error) {
if err := netutils.Wait(ctx, r); err != nil {
return nil, err
}
log.Printf("fetching machine config from %q", ExoscaleUserDataEndpoint)
return download.Download(ctx, ExoscaleUserDataEndpoint,
download.WithErrorOnNotFound(errors.ErrNoConfigSource),
download.WithErrorOnEmptyResponse(errors.ErrNoConfigSource))
}
// Mode implements the runtime.Platform interface.
func (e *Exoscale) Mode() runtime.Mode {
return runtime.ModeCloud
}
// KernelArgs implements the runtime.Platform interface.
func (e *Exoscale) KernelArgs(string) procfs.Parameters {
return []*procfs.Parameter{
procfs.NewParameter("console").Append("tty1").Append("ttyS0"),
procfs.NewParameter(constants.KernelParamNetIfnames).Append("0"),
}
}
// NetworkConfiguration implements the runtime.Platform interface.
func (e *Exoscale) NetworkConfiguration(ctx context.Context, _ state.State, ch chan<- *runtime.PlatformNetworkConfig) error {
log.Printf("fetching exoscale instance config from: %q", ExoscaleMetadataEndpoint)
metadata, err := e.getMetadata(ctx)
if err != nil {
return err
}
networkConfig, err := e.ParseMetadata(metadata)
if err != nil {
return err
}
select {
case ch <- networkConfig:
case <-ctx.Done():
return ctx.Err()
}
return nil
}