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feature/featuretags: add a catch-all "Debug" feature flag

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Updates #12614

Change-Id: Iaab3ae3efc6ddc7da39629ef13e5ec44976952ba
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2025-09-30 09:53:55 -07:00
committed by Brad Fitzpatrick
parent bbb16e4e72
commit ee034d48fc
15 changed files with 573 additions and 455 deletions
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11
client/local/local.go
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@@ -31,6 +31,8 @@ import (
"tailscale.com/client/tailscale/apitype"
"tailscale.com/drive"
"tailscale.com/envknob"
"tailscale.com/feature"
"tailscale.com/feature/buildfeatures"
"tailscale.com/ipn"
"tailscale.com/ipn/ipnstate"
"tailscale.com/net/netutil"
@@ -608,6 +610,9 @@ func (lc *Client) SetDevStoreKeyValue(ctx context.Context, key, value string) er
// the provided duration. If the duration is in the past, the debug logging
// is disabled.
func (lc *Client) SetComponentDebugLogging(ctx context.Context, component string, d time.Duration) error {
if !buildfeatures.HasDebug {
return feature.ErrUnavailable
}
body, err := lc.send(ctx, "POST",
fmt.Sprintf("/localapi/v0/component-debug-logging?component=%s&secs=%d",
url.QueryEscape(component), int64(d.Seconds())), 200, nil)
@@ -862,6 +867,9 @@ func (lc *Client) EditPrefs(ctx context.Context, mp *ipn.MaskedPrefs) (*ipn.Pref
// GetDNSOSConfig returns the system DNS configuration for the current device.
// That is, it returns the DNS configuration that the system would use if Tailscale weren't being used.
func (lc *Client) GetDNSOSConfig(ctx context.Context) (*apitype.DNSOSConfig, error) {
if !buildfeatures.HasDNS {
return nil, feature.ErrUnavailable
}
body, err := lc.get200(ctx, "/localapi/v0/dns-osconfig")
if err != nil {
return nil, err
@@ -877,6 +885,9 @@ func (lc *Client) GetDNSOSConfig(ctx context.Context) (*apitype.DNSOSConfig, err
// It returns the raw DNS response bytes and the resolvers that were used to answer the query
// (often just one, but can be more if we raced multiple resolvers).
func (lc *Client) QueryDNS(ctx context.Context, name string, queryType string) (bytes []byte, resolvers []*dnstype.Resolver, err error) {
if !buildfeatures.HasDNS {
return nil, nil, feature.ErrUnavailable
}
body, err := lc.get200(ctx, fmt.Sprintf("/localapi/v0/dns-query?name=%s&type=%s", url.QueryEscape(name), queryType))
if err != nil {
return nil, nil, err