129 lines
2.8 KiB
Go
129 lines
2.8 KiB
Go
package daemon
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import (
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"bytes"
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"encoding/json"
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"errors"
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"fmt"
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"os"
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"path/filepath"
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"reflect"
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"isle/bootstrap"
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"isle/garage/garagesrv"
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"isle/jsonutil"
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"isle/secrets"
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)
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// JoiningBootstrap wraps a normal Bootstrap to include extra data which a host
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// might need while joining a network.
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type JoiningBootstrap struct {
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Bootstrap bootstrap.Bootstrap
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Secrets map[secrets.ID]json.RawMessage
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}
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func writeBootstrapToStateDir(
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stateDirPath string, hostBootstrap bootstrap.Bootstrap,
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) error {
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var (
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path = bootstrap.StateDirPath(stateDirPath)
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dirPath = filepath.Dir(path)
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)
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if err := os.MkdirAll(dirPath, 0700); err != nil {
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return fmt.Errorf("creating directory %q: %w", dirPath, err)
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}
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if err := jsonutil.WriteFile(hostBootstrap, path, 0600); err != nil {
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return fmt.Errorf("writing bootstrap to %q: %w", path, err)
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}
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return nil
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}
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func coalesceDaemonConfigAndBootstrap(
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daemonConfig Config, hostBootstrap bootstrap.Bootstrap,
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) (
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bootstrap.Bootstrap, error,
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) {
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host := bootstrap.Host{
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HostAssigned: hostBootstrap.HostAssigned,
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HostConfigured: bootstrap.HostConfigured{
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Nebula: bootstrap.NebulaHost{
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PublicAddr: daemonConfig.VPN.PublicAddr,
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},
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},
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}
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if allocs := daemonConfig.Storage.Allocations; len(allocs) > 0 {
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for i, alloc := range allocs {
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id, rpcPort, err := garagesrv.InitAlloc(alloc.MetaPath, alloc.RPCPort)
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if err != nil {
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return bootstrap.Bootstrap{}, fmt.Errorf(
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"initializing alloc at %q: %w", alloc.MetaPath, err,
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)
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}
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host.Garage.Instances = append(host.Garage.Instances, bootstrap.GarageHostInstance{
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ID: id,
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RPCPort: rpcPort,
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S3APIPort: alloc.S3APIPort,
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})
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allocs[i].RPCPort = rpcPort
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}
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}
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hostBootstrap.Hosts[host.Name] = host
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return hostBootstrap, nil
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}
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type bootstrapDiff struct {
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hostsChanged bool
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nebulaChanged bool
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dnsChanged bool
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}
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func calcBootstrapDiff(
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daemonConfig Config,
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prevBootstrap, nextBootstrap bootstrap.Bootstrap,
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) (
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diff bootstrapDiff, err error,
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) {
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{
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prevHash, prevErr := bootstrap.HostsHash(prevBootstrap.Hosts)
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nextHash, nextErr := bootstrap.HostsHash(nextBootstrap.Hosts)
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if err = errors.Join(prevErr, nextErr); err != nil {
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err = fmt.Errorf("calculating host hashes: %w", err)
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return
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}
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diff.hostsChanged = bytes.Equal(prevHash, nextHash)
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}
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{
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prevNebulaConfig, prevErr := nebulaConfig(daemonConfig, prevBootstrap)
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nextNebulaConfig, nextErr := nebulaConfig(daemonConfig, nextBootstrap)
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if err = errors.Join(prevErr, nextErr); err != nil {
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err = fmt.Errorf("calculating nebula config: %w", err)
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return
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}
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diff.nebulaChanged = !reflect.DeepEqual(
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prevNebulaConfig, nextNebulaConfig,
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)
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}
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{
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diff.dnsChanged = reflect.DeepEqual(
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dnsmasqConfig(daemonConfig, prevBootstrap),
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dnsmasqConfig(daemonConfig, nextBootstrap),
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)
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}
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return
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}
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