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kube-arangodb/cmd/init_container_version_check.go
2024-02-08 15:25:48 +01:00

102 lines
2.7 KiB
Go

//
// DISCLAIMER
//
// Copyright 2016-2024 ArangoDB GmbH, Cologne, Germany
//
// 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.
//
// Copyright holder is ArangoDB GmbH, Cologne, Germany
//
package cmd
import (
"encoding/json"
"os"
"github.com/rs/zerolog/log"
"github.com/spf13/cobra"
"github.com/arangodb/kube-arangodb/pkg/util/errors"
)
const cmdVersionCheckInitContainersInvalidVersionExitCode = 11
type cmdVersionCheckInitContainersInputStruct struct {
versionPath string
major, minor int
}
var (
cmdVersionCheckInitContainers = &cobra.Command{
Use: "version-check",
RunE: cmdVersionCheckInitContainersInput.Run,
}
cmdVersionCheckInitContainersInput cmdVersionCheckInitContainersInputStruct
)
type cmdVersionCheckInitContainersData struct {
Version int `json:"version,omitempty"`
}
func init() {
cmdInitContainers.AddCommand(cmdVersionCheckInitContainers)
f := cmdVersionCheckInitContainers.Flags()
f.StringVar(&cmdVersionCheckInitContainersInput.versionPath, "path", "", "Path to the VERSION file")
f.IntVar(&cmdVersionCheckInitContainersInput.major, "major", 0, "Major version of the ArangoDB. 0 if check is disabled")
f.IntVar(&cmdVersionCheckInitContainersInput.minor, "minor", 0, "Minor version of the ArangoDB. 0 if check is disabled")
}
func (c *cmdVersionCheckInitContainersInputStruct) Run(cmd *cobra.Command, args []string) error {
if c.versionPath == "" {
return errors.Errorf("Path cannot be empty")
}
if data, err := os.ReadFile(c.versionPath); err != nil {
log.Err(err).Msg("File is not readable, continue")
return nil
} else {
major, minor, _, ok := extractVersionFromData(data)
if !ok {
return nil
}
if c.major != 0 {
if c.major != major {
return Exit(cmdVersionCheckInitContainersInvalidVersionExitCode)
}
if c.minor != 0 {
if c.minor != minor {
return Exit(cmdVersionCheckInitContainersInvalidVersionExitCode)
}
}
}
log.Info().Msg("Version check complete")
return nil
}
}
func extractVersionFromData(data []byte) (int, int, int, bool) {
var c cmdVersionCheckInitContainersData
if err := json.Unmarshal(data, &c); err != nil {
log.Err(err).Msg("Invalid json, continue")
return 0, 0, 0, false
}
return c.Version / 10000, c.Version % 10000 / 100, c.Version % 100, true
}