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oracle.go
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oracle.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 oracle provides the Oracle platform implementation.
package oracle
import (
"context"
"encoding/base64"
"encoding/json"
"fmt"
"log"
"net/netip"
"strings"
"github.com/cosi-project/runtime/pkg/state"
"github.com/siderolabs/go-procfs/procfs"
"github.com/aenix-io/talm/internal/app/machined/pkg/runtime"
"github.com/aenix-io/talm/internal/app/machined/pkg/runtime/v1alpha1/platform/errors"
"github.com/aenix-io/talm/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/nethelpers"
"github.com/siderolabs/talos/pkg/machinery/resources/network"
runtimeres "github.com/siderolabs/talos/pkg/machinery/resources/runtime"
)
// NetworkConfig holds network interface meta config.
type NetworkConfig struct {
HWAddr string `json:"macAddr"`
PrivateIP string `json:"privateIp"`
VirtualRouterIP string `json:"virtualRouterIp"`
SubnetCidrBlock string `json:"subnetCidrBlock"`
Ipv6SubnetCidrBlock string `json:"ipv6SubnetCidrBlock,omitempty"`
Ipv6VirtualRouterIP string `json:"ipv6VirtualRouterIp,omitempty"`
Ipv6Addresses []string `json:"ipv6Addresses,omitempty"`
}
// Oracle is the concrete type that implements the platform.Platform interface.
type Oracle struct{}
// Name implements the platform.Platform interface.
func (o *Oracle) Name() string {
return "oracle"
}
// ParseMetadata converts Oracle Cloud metadata into platform network configuration.
func (o *Oracle) ParseMetadata(interfaceAddresses []NetworkConfig, 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)
}
for idx, iface := range interfaceAddresses {
ifname := fmt.Sprintf("eth%d", idx)
if iface.Ipv6SubnetCidrBlock != "" && iface.Ipv6VirtualRouterIP != "" {
networkConfig.Operators = append(networkConfig.Operators, network.OperatorSpecSpec{
Operator: network.OperatorDHCP6,
LinkName: ifname,
RequireUp: true,
DHCP6: network.DHCP6OperatorSpec{
RouteMetric: network.DefaultRouteMetric,
},
ConfigLayer: network.ConfigPlatform,
})
gw, err := netip.ParseAddr(iface.Ipv6VirtualRouterIP)
if err != nil {
return nil, err
}
route := network.RouteSpecSpec{
ConfigLayer: network.ConfigPlatform,
Gateway: gw,
OutLinkName: ifname,
Table: nethelpers.TableMain,
Protocol: nethelpers.ProtocolStatic,
Type: nethelpers.TypeUnicast,
Family: nethelpers.FamilyInet6,
Priority: 2 * network.DefaultRouteMetric,
}
route.Normalize()
networkConfig.Routes = append(networkConfig.Routes, route)
}
}
dns, _ := netip.ParseAddr(oracleResolverServer) //nolint:errcheck
networkConfig.Resolvers = append(networkConfig.Resolvers, network.ResolverSpecSpec{
DNSServers: []netip.Addr{dns},
ConfigLayer: network.ConfigPlatform,
})
networkConfig.TimeServers = append(networkConfig.TimeServers, network.TimeServerSpecSpec{
NTPServers: []string{oracleTimeServer},
ConfigLayer: network.ConfigPlatform,
})
zone := metadata.AvailabilityDomain
if idx := strings.LastIndex(zone, ":"); idx != -1 {
zone = zone[idx+1:]
}
networkConfig.Metadata = &runtimeres.PlatformMetadataSpec{
Platform: o.Name(),
Hostname: metadata.Hostname,
Region: metadata.Region,
Zone: zone,
InstanceType: metadata.Shape,
InstanceID: metadata.ID,
ProviderID: fmt.Sprintf("oci://%s", metadata.ID),
}
return networkConfig, nil
}
// Configuration implements the platform.Platform interface.
func (o *Oracle) 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", OracleUserDataEndpoint)
machineConfigDl, err := download.Download(ctx, OracleUserDataEndpoint,
download.WithHeaders(map[string]string{"Authorization": "Bearer Oracle"}),
download.WithErrorOnNotFound(errors.ErrNoConfigSource),
download.WithErrorOnEmptyResponse(errors.ErrNoConfigSource))
if err != nil {
return nil, err
}
machineConfig, err := base64.StdEncoding.DecodeString(string(machineConfigDl))
if err != nil {
return nil, errors.ErrNoConfigSource
}
return machineConfig, nil
}
// Mode implements the platform.Platform interface.
func (o *Oracle) Mode() runtime.Mode {
return runtime.ModeCloud
}
// KernelArgs implements the runtime.Platform interface.
func (o *Oracle) KernelArgs(string) procfs.Parameters {
return []*procfs.Parameter{
procfs.NewParameter("console").Append("tty1").Append("ttyS0"),
procfs.NewParameter(constants.KernelParamNetIfnames).Append("0"),
procfs.NewParameter(constants.KernelParamDashboardDisabled).Append("1"),
}
}
// NetworkConfiguration implements the runtime.Platform interface.
func (o *Oracle) NetworkConfiguration(ctx context.Context, _ state.State, ch chan<- *runtime.PlatformNetworkConfig) error {
log.Printf("fetching oracle metadata from: %q", OracleMetadataEndpoint)
metadata, err := o.getMetadata(ctx)
if err != nil {
return err
}
log.Printf("fetching network config from %q", OracleNetworkEndpoint)
metadataNetworkConfigDl, err := download.Download(ctx, OracleNetworkEndpoint,
download.WithHeaders(map[string]string{"Authorization": "Bearer Oracle"}))
if err != nil {
return fmt.Errorf("failed to fetch network config from: %w", err)
}
var interfaceAddresses []NetworkConfig
if err = json.Unmarshal(metadataNetworkConfigDl, &interfaceAddresses); err != nil {
return err
}
networkConfig, err := o.ParseMetadata(interfaceAddresses, metadata)
if err != nil {
return err
}
select {
case ch <- networkConfig:
case <-ctx.Done():
return ctx.Err()
}
return nil
}