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Code Activity

TUN-7124: Add intercept ingress rule for management requests

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This commit is contained in:
Devin Carr
2023-03-21 11:42:25 -07:00
parent f686da832f
commit be64362fdb
25 changed files with 2741 additions and 43 deletions
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29
orchestration/orchestrator.go
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@@ -28,8 +28,9 @@ type Orchestrator struct {
lock sync.RWMutex
// Underlying value is proxy.Proxy, can be read without the lock, but still needs the lock to update
proxy atomic.Value
// TODO: TUN-6815 Use atomic.Bool once we upgrade to go 1.19. 1 Means enabled and 0 means disabled
warpRoutingEnabled uint32
// Set of local ingress rules defined at cloudflared startup (separate from user-defined ingress rules)
localRules []ingress.Rule
warpRoutingEnabled atomic.Bool
config *Config
tags []tunnelpogs.Tag
log *zerolog.Logger
@@ -40,10 +41,11 @@ type Orchestrator struct {
proxyShutdownC chan<- struct{}
}
func NewOrchestrator(ctx context.Context, config *Config, tags []tunnelpogs.Tag, log *zerolog.Logger) (*Orchestrator, error) {
func NewOrchestrator(ctx context.Context, config *Config, tags []tunnelpogs.Tag, localRules []ingress.Rule, log *zerolog.Logger) (*Orchestrator, error) {
o := &Orchestrator{
// Lowest possible version, any remote configuration will have version higher than this
currentVersion: 0,
localRules: localRules,
config: config,
tags: tags,
log: log,
@@ -112,6 +114,9 @@ func (o *Orchestrator) updateIngress(ingressRules ingress.Ingress, warpRouting i
default:
}
// Assign the local ingress rules to the parsed ingress
ingressRules.LocalRules = o.localRules
// Start new proxy before closing the ones from last version.
// The upside is we don't need to restart proxy from last version, which can fail
// The downside is new version might have ingress rule that require previous version to be shutdown first
@@ -120,14 +125,14 @@ func (o *Orchestrator) updateIngress(ingressRules ingress.Ingress, warpRouting i
if err := ingressRules.StartOrigins(o.log, proxyShutdownC); err != nil {
return errors.Wrap(err, "failed to start origin")
}
newProxy := proxy.NewOriginProxy(ingressRules, warpRouting, o.tags, o.log)
o.proxy.Store(newProxy)
proxy := proxy.NewOriginProxy(ingressRules, warpRouting, o.tags, o.log)
o.proxy.Store(proxy)
o.config.Ingress = &ingressRules
o.config.WarpRouting = warpRouting
if warpRouting.Enabled {
atomic.StoreUint32(&o.warpRoutingEnabled, 1)
o.warpRoutingEnabled.Store(true)
} else {
atomic.StoreUint32(&o.warpRoutingEnabled, 0)
o.warpRoutingEnabled.Store(false)
}
// If proxyShutdownC is nil, there is no previous running proxy
@@ -188,7 +193,7 @@ func (o *Orchestrator) GetOriginProxy() (connection.OriginProxy, error) {
o.log.Error().Msg(err.Error())
return nil, err
}
proxy, ok := val.(*proxy.Proxy)
proxy, ok := val.(connection.OriginProxy)
if !ok {
err := fmt.Errorf("origin proxy has unexpected value %+v", val)
o.log.Error().Msg(err.Error())
@@ -197,12 +202,8 @@ func (o *Orchestrator) GetOriginProxy() (connection.OriginProxy, error) {
return proxy, nil
}
// TODO: TUN-6815 consider storing WarpRouting.Enabled as atomic.Bool once we upgrade to go 1.19
func (o *Orchestrator) WarpRoutingEnabled() (enabled bool) {
if atomic.LoadUint32(&o.warpRoutingEnabled) == 0 {
return false
}
return true
func (o *Orchestrator) WarpRoutingEnabled() bool {
return o.warpRoutingEnabled.Load()
}
func (o *Orchestrator) waitToCloseLastProxy() {