Files
gluetun/internal/updater/providers.go
T
Quentin McGaw d9cc7dcffb refactor(storage): new storage file structure
- new directory structure containing manifest.json and one json file per provider, by default.
- the manifest.json file can specify a filepath for each vpn provider
- each vpn provider json data file can contain the `"preferred": true` field to enforce it is used even if outdated, unless there is a version mismatch
- `STORAGE_SERVERS_DIRECTORY_PATH` replaces `STORAGE_FILEPATH` (which is now a migration source only). It sets the directory where server manifest and per-provider JSON files are stored (default: `/gluetun/servers/`).
- First-run migration: On startup, gluetun checks for the old /gluetun/servers.json file; if found and no new manifest exists, it automatically migrates all data to /gluetun/servers/ directory structure
- Silent fallback: If legacy file isn't found, uses the new directory path normally
- Legacy cleanup: After successful migration, attempts to remove the old fat JSON file (logs warning only if removal fails, e.g., read-only bind mounts)
2026-05-11 04:53:04 +00:00

58 lines
1.6 KiB
Go

package updater
import (
"context"
"encoding/json"
"errors"
"fmt"
"github.com/qdm12/gluetun-servers/pkg/models"
"github.com/qdm12/gluetun-servers/pkg/updaters/common"
)
type Provider interface {
Name() string
FetchServers(ctx context.Context, minServers int) (servers []models.Server, err error)
}
func (u *Updater) updateProvider(ctx context.Context, provider Provider,
minRatio float64,
) (err error) {
providerName := provider.Name()
existingServersCount := u.storage.GetServersCount(providerName)
minServers := int(minRatio * float64(existingServersCount))
servers, err := provider.FetchServers(ctx, minServers)
if err != nil {
if errors.Is(err, common.ErrNotEnoughServers) {
u.logger.Warn("note: if running the update manually, you can use the flag " +
"-minratio to allow the update to succeed with less servers found")
}
return fmt.Errorf("getting %s servers: %w", providerName, err)
}
for _, server := range servers {
err := server.HasMinimumInformation()
if err != nil {
serverJSON, jsonErr := json.Marshal(server)
if jsonErr != nil {
panic(jsonErr)
}
return fmt.Errorf("server %s has not enough information: %w", serverJSON, err)
}
}
if u.storage.ServersAreEqual(providerName, servers) {
return nil
}
// Note the servers variable must NOT BE MUTATED after this call,
// since the implementation does not deep copy the servers.
// TODO set in storage in provider updater directly, server by server,
// to avoid accumulating server data in memory.
err = u.storage.SetServers(providerName, servers)
if err != nil {
return fmt.Errorf("setting servers to storage: %w", err)
}
return nil
}