/
version_mismatch.go
82 lines (62 loc) · 2.55 KB
/
version_mismatch.go
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// Copyright (c) 2021 Tigera, Inc. All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package common
import (
"context"
"errors"
"fmt"
"strings"
log "github.com/sirupsen/logrus"
"github.com/projectcalico/calicoctl/v3/calicoctl/commands/clientmgr"
cerrors "github.com/projectcalico/libcalico-go/lib/errors"
"github.com/projectcalico/libcalico-go/lib/options"
)
var VERSION string
func CheckVersionMismatch(configArg, allowMismatchArg interface{}) error {
if allowMismatch, _ := allowMismatchArg.(bool); allowMismatch {
log.Infof("Skip version mismatch checking due to '--allow-version-mismatch' argument")
return nil
}
cf, _ := configArg.(string)
client, err := clientmgr.NewClient(cf)
if err != nil {
// If we can't connect to the cluster, skip the check. Either we're running a command that
// doesn't need API access, in which case the check doesn't need to be run, or we'll
// fail on the actual command.
log.Infof("Skip version mismatch checking due to not being able to connect to the cluster")
return nil
}
ctx := context.Background()
ci, err := client.ClusterInformation().Get(ctx, "default", options.GetOptions{})
if err != nil {
var notFound cerrors.ErrorResourceDoesNotExist
if errors.As(err, ¬Found) {
// ClusterInformation does not exist, so skip version check.
log.Infof("Skip version mismatch checking due to ClusterInformation not being present")
return nil
}
return fmt.Errorf("Unable to get Cluster Information to verify version mismatch: %w\nUse --allow-version-mismatch to override.\n", err)
}
clusterv := ci.Spec.CalicoVersion
if clusterv == "" {
// CalicoVersion field not specified in the cluster, so skip check.
log.Infof("Skip version mismatch checking due to CalicoVersion not being set")
return nil
}
clusterv = strings.Split(clusterv, "-")[0]
clientv := strings.Split(VERSION, "-")[0]
if clusterv != clientv {
return fmt.Errorf("Version mismatch.\nClient Version: %s\nCluster Version: %s\nUse --allow-version-mismatch to override.\n", VERSION, clusterv)
}
return nil
}