bouncer/internal/admin/bootstrap.go

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2024-03-27 17:47:39 +01:00
package admin
import (
"context"
"time"
"forge.cadoles.com/cadoles/bouncer/internal/config"
"forge.cadoles.com/cadoles/bouncer/internal/lock/redis"
"forge.cadoles.com/cadoles/bouncer/internal/schema"
"forge.cadoles.com/cadoles/bouncer/internal/setup"
"forge.cadoles.com/cadoles/bouncer/internal/store"
"github.com/pkg/errors"
"gitlab.com/wpetit/goweb/logger"
)
func (s *Server) bootstrapProxies(ctx context.Context) error {
if err := s.validateBootstrap(ctx); err != nil {
return errors.Wrap(err, "could not validate bootstrapped proxies")
}
proxyRepo := s.proxyRepository
layerRepo := s.layerRepository
lockTimeout := time.Duration(s.bootstrapConfig.LockTimeout)
locker := redis.NewLocker(s.redisClient, int(s.bootstrapConfig.MaxConnectionRetries))
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err := locker.WithLock(ctx, "bouncer-admin-bootstrap", lockTimeout, func(ctx context.Context) error {
logger.Info(ctx, "bootstrapping proxies")
for proxyName, proxyConfig := range s.bootstrapConfig.Proxies {
loopCtx := logger.With(ctx, logger.F("proxyName", proxyName), logger.F("proxyFrom", proxyConfig.From), logger.F("proxyTo", proxyConfig.To))
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_, err := s.proxyRepository.GetProxy(ctx, proxyName)
if !errors.Is(err, store.ErrNotFound) {
if err != nil {
return errors.WithStack(err)
}
if proxyConfig.Recreate {
logger.Info(loopCtx, "force recreating proxy")
if err := s.deleteProxyAndLayers(ctx, proxyName); err != nil {
return errors.WithStack(err)
}
} else {
logger.Info(loopCtx, "ignoring existing proxy")
continue
}
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}
logger.Info(loopCtx, "creating proxy")
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if _, err := proxyRepo.CreateProxy(ctx, proxyName, string(proxyConfig.To), proxyConfig.From...); err != nil {
return errors.WithStack(err)
}
_, err = proxyRepo.UpdateProxy(
ctx, proxyName,
store.WithProxyUpdateEnabled(bool(proxyConfig.Enabled)),
store.WithProxyUpdateWeight(int(proxyConfig.Weight)),
)
if err != nil {
return errors.WithStack(err)
}
for layerName, layerConfig := range proxyConfig.Layers {
layerType := store.LayerType(layerConfig.Type)
layerOptions := store.LayerOptions(layerConfig.Options.Data)
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if _, err := layerRepo.CreateLayer(ctx, proxyName, layerName, layerType, layerOptions); err != nil {
return errors.WithStack(err)
}
_, err := layerRepo.UpdateLayer(
ctx,
proxyName, layerName,
store.WithLayerUpdateEnabled(bool(layerConfig.Enabled)),
store.WithLayerUpdateOptions(layerOptions),
store.WithLayerUpdateWeight(int(layerConfig.Weight)),
)
if err != nil {
return errors.WithStack(err)
}
}
}
return nil
})
if err != nil {
return errors.WithStack(err)
}
return nil
}
const validateErrMessage = "could not validate proxy '%s': could not validate layer '%s'"
func (s *Server) validateBootstrap(ctx context.Context) error {
for proxyName, proxyConf := range s.bootstrapConfig.Proxies {
for layerName, layerConf := range proxyConf.Layers {
layerType := store.LayerType(layerConf.Type)
if !setup.LayerTypeExists(layerType) {
return errors.Errorf(validateErrMessage+": could not find layer type '%s'", proxyName, layerName, layerType)
}
layerOptionsSchema, err := setup.GetLayerOptionsSchema(layerType)
if err != nil {
return errors.Wrapf(err, validateErrMessage, proxyName, layerName)
}
rawOptions := func(opts config.InterpolatedMap) map[string]any {
return opts.Data
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}(layerConf.Options)
if err := schema.Validate(ctx, layerOptionsSchema, rawOptions); err != nil {
return errors.Wrapf(err, validateErrMessage, proxyName, layerName)
}
}
}
return nil
}