go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/tokenserver/appengine/impl/certchecker/warmup.go (about)

     1  // Copyright 2017 The LUCI Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package certchecker
    16  
    17  import (
    18  	"context"
    19  
    20  	"go.chromium.org/luci/common/errors"
    21  	"go.chromium.org/luci/common/logging"
    22  	"go.chromium.org/luci/server/warmup"
    23  	"go.chromium.org/luci/tokenserver/appengine/impl/certconfig"
    24  )
    25  
    26  func init() {
    27  	warmup.Register("tokenserver/appengine/impl/certchecker", func(c context.Context) error {
    28  		names, err := certconfig.ListCAs(c)
    29  		if err != nil {
    30  			return err
    31  		}
    32  		var merr errors.MultiError
    33  		for _, cn := range names {
    34  			logging.Infof(c, "Warming up %q", cn)
    35  			checker, err := GetCertChecker(c, cn)
    36  			if err == nil {
    37  				_, err = checker.GetCA(c)
    38  			}
    39  			if err != nil {
    40  				logging.WithError(err).Warningf(c, "Failed to warm up %q", cn)
    41  				merr = append(merr, err)
    42  			}
    43  		}
    44  		if len(merr) == 0 {
    45  			return nil
    46  		}
    47  		return merr
    48  	})
    49  }