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envoy: migrate deprecated overload setting (#5082)

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Migrate from overload.global_downstream_max_connections to the suggested
envoy.resource_monitors.global_downstream_max_connections replacement.
This commit is contained in:
Kenneth Jenkins 2024-04-22 18:53:24 -07:00 • committed by GitHub
parent cc0a989cc0
commit 05e077fe04
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GPG key ID: B5690EEEBB952194
2 changed files with 40 additions and 6 deletions
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18
config/envoyconfig/bootstrap.go
View file

@ -12,7 +12,9 @@ import (
envoy_config_core_v3 "github.com/envoyproxy/go-control-plane/envoy/config/core/v3"
envoy_config_endpoint_v3 "github.com/envoyproxy/go-control-plane/envoy/config/endpoint/v3"
envoy_config_metrics_v3 "github.com/envoyproxy/go-control-plane/envoy/config/metrics/v3"
envoy_config_overload_v3 "github.com/envoyproxy/go-control-plane/envoy/config/overload/v3"
envoy_extensions_access_loggers_file_v3 "github.com/envoyproxy/go-control-plane/envoy/extensions/access_loggers/file/v3"
envoy_extensions_resource_monitors_downstream_connections_v3 "github.com/envoyproxy/go-control-plane/envoy/extensions/resource_monitors/downstream_connections/v3"
"google.golang.org/protobuf/types/known/durationpb"
"google.golang.org/protobuf/types/known/structpb"
@ -21,6 +23,8 @@ import (
"github.com/pomerium/pomerium/internal/telemetry/trace"
)
const maxActiveDownstreamConnections = 50000
var (
envoyAdminAddressPath = filepath.Join(os.TempDir(), "pomerium-envoy-admin.sock")
envoyAdminAddressMode = 0o600
@ -68,6 +72,17 @@ func (b *Builder) BuildBootstrap(
return nil, err
}
bootstrap.OverloadManager = &envoy_config_overload_v3.OverloadManager{
ResourceMonitors: []*envoy_config_overload_v3.ResourceMonitor{{
Name: "envoy.resource_monitors.global_downstream_max_connections",
ConfigType: &envoy_config_overload_v3.ResourceMonitor_TypedConfig{
TypedConfig: marshalAny(&envoy_extensions_resource_monitors_downstream_connections_v3.DownstreamConnectionsConfig{
MaxActiveDownstreamConnections: maxActiveDownstreamConnections,
}),
},
}},
}
return bootstrap, nil
}
@ -135,9 +150,6 @@ func (b *Builder) BuildBootstrapDynamicResources(
// BuildBootstrapLayeredRuntime builds the layered runtime for the envoy bootstrap.
func (b *Builder) BuildBootstrapLayeredRuntime() (*envoy_config_bootstrap_v3.LayeredRuntime, error) {
layer, err := structpb.NewStruct(map[string]interface{}{
"overload": map[string]interface{}{
"global_downstream_max_connections": 50000,
},
"re2": map[string]any{
"max_program_size": map[string]any{
"error_level": 1024 * 1024,

28
config/envoyconfig/bootstrap_test.go
View file

@ -41,9 +41,6 @@ func TestBuilder_BuildBootstrapLayeredRuntime(t *testing.T) {
{ "layers": [{
"name": "static_layer_0",
"staticLayer": {
"overload": {
"global_downstream_max_connections": 50000
},
"re2": {
"max_program_size": {
"error_level": 1048576,
@ -126,3 +123,28 @@ func TestBuilder_BuildBootstrapStatsConfig(t *testing.T) {
`, statsCfg)
})
}
func TestBuilder_BuildBootstrap(t *testing.T) {
b := New("localhost:1111", "localhost:2222", "localhost:3333", filemgr.NewManager(), nil)
t.Run("OverloadManager", func(t *testing.T) {
bootstrap, err := b.BuildBootstrap(context.Background(), &config.Config{
Options: &config.Options{
EnvoyAdminAddress: "localhost:9901",
},
}, false)
assert.NoError(t, err)
testutil.AssertProtoJSONEqual(t, `
{
"resourceMonitors": [
{
"name": "envoy.resource_monitors.global_downstream_max_connections",
"typedConfig": {
"@type": "type.googleapis.com/envoy.extensions.resource_monitors.downstream_connections.v3.DownstreamConnectionsConfig",
"maxActiveDownstreamConnections": "50000"
}
}
]
}
`, bootstrap.OverloadManager)
})
}