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[BREAKING] Config File Enhancements: v1alpha3, migrations, generic k3…
…s-args (#605) Excerpt: - new version v1alpha3 with k3s extraArgs using node filters - reflected in CLI via --k3s-arg - new migration option to migrate (internally and via cli) from v1alpha2 to v1alpha3 - enhancements to how config files are being read - e2e tests for config file migration
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| /* | ||
| Copyright © 2020 The k3d Author(s) | ||
| Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| of this software and associated documentation files (the "Software"), to deal | ||
| in the Software without restriction, including without limitation the rights | ||
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| copies of the Software, and to permit persons to whom the Software is | ||
| furnished to do so, subject to the following conditions: | ||
| The above copyright notice and this permission notice shall be included in | ||
| all copies or substantial portions of the Software. | ||
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| THE SOFTWARE. | ||
| */ | ||
| package config | ||
|
|
||
| import ( | ||
| "os" | ||
| "strings" | ||
|
|
||
| "github.com/rancher/k3d/v4/pkg/config" | ||
| log "github.com/sirupsen/logrus" | ||
| "github.com/spf13/cobra" | ||
| "github.com/spf13/viper" | ||
| "gopkg.in/yaml.v2" | ||
| ) | ||
|
|
||
| // NewCmdConfigMigrate returns a new cobra command | ||
| func NewCmdConfigMigrate() *cobra.Command { | ||
|
|
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| cmd := &cobra.Command{ | ||
| Use: "migrate INPUT OUTPUT", | ||
| Args: cobra.RangeArgs(1, 2), | ||
| Run: func(cmd *cobra.Command, args []string) { | ||
|
|
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| configFile := args[0] | ||
|
|
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| if _, err := os.Stat(configFile); err != nil { | ||
| log.Fatalf("Failed to stat config file %s: %+v", configFile, err) | ||
| } | ||
|
|
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| cfgViper := viper.New() | ||
| cfgViper.SetConfigType("yaml") | ||
|
|
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| cfgViper.SetConfigFile(configFile) | ||
|
|
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| // try to read config into memory (viper map structure) | ||
| if err := cfgViper.ReadInConfig(); err != nil { | ||
| if _, ok := err.(viper.ConfigFileNotFoundError); ok { | ||
| log.Fatalf("Config file %s not found: %+v", configFile, err) | ||
| } | ||
| // config file found but some other error happened | ||
| log.Fatalf("Failed to read config file %s: %+v", configFile, err) | ||
| } | ||
|
|
||
| schema, err := config.GetSchemaByVersion(cfgViper.GetString("apiVersion")) | ||
| if err != nil { | ||
| log.Fatalf("Cannot validate config file %s: %+v", configFile, err) | ||
| } | ||
|
|
||
| if err := config.ValidateSchemaFile(configFile, schema); err != nil { | ||
| log.Fatalf("Schema Validation failed for config file %s: %+v", configFile, err) | ||
| } | ||
|
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| log.Infof("Using config file %s (%s#%s)", cfgViper.ConfigFileUsed(), strings.ToLower(cfgViper.GetString("apiVersion")), strings.ToLower(cfgViper.GetString("kind"))) | ||
|
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| cfg, err := config.FromViper(cfgViper) | ||
| if err != nil { | ||
| log.Fatalln(err) | ||
| } | ||
|
|
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| if cfg.GetAPIVersion() != config.DefaultConfigApiVersion { | ||
| cfg, err = config.Migrate(cfg, config.DefaultConfigApiVersion) | ||
| if err != nil { | ||
| log.Fatalln(err) | ||
| } | ||
| } | ||
|
|
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| yamlout, err := yaml.Marshal(cfg) | ||
| if err != nil { | ||
| log.Fatalln(err) | ||
| } | ||
|
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| output := "-" | ||
|
|
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| if len(args) > 1 { | ||
| output = args[1] | ||
| } | ||
|
|
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| if output == "-" { | ||
| if _, err := os.Stdout.Write(yamlout); err != nil { | ||
| log.Fatalln(err) | ||
| } | ||
| } else { | ||
| if err := os.WriteFile(output, yamlout, os.ModeAppend); err != nil { | ||
| log.Fatalln(err) | ||
| } | ||
| } | ||
|
|
||
| }, | ||
| } | ||
|
|
||
| return cmd | ||
| } |
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