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Create a kompanion command to migrate KCC.
New mgirator command. Creates a migration file of KCC resources. Allows the resources to be easily copied to another cluster.
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| # Copyright 2024 Google LLC | ||
| # | ||
| # 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. | ||
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| ## --- | ||
| ## Basic build | ||
| ## --- | ||
| .PHONY: build | ||
| build: bin | ||
| GOWORK=off go build -o bin/kompanion | ||
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| bin: | ||
| mkdir bin | ||
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| ## --- | ||
| ## Clean build and related artifacts to make the repo 'clean' | ||
| ## --- | ||
| .PHONY: clean | ||
| clean: | ||
| rm -rf bin | ||
| rm migration.yaml | ||
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| // Copyright 2024 Google LLC | ||
| // | ||
| // 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. | ||
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| package export | ||
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| import ( | ||
| "fmt" | ||
| "log" | ||
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| "github.com/spf13/pflag" | ||
| ) | ||
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| const ( | ||
| // flag names. | ||
| kubeconfigFlag = "kubeconfig" | ||
| reportNamePrefixFlag = "report-prefix" | ||
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| targetNamespacesFlag = "target-namespaces" | ||
| ignoreNamespacesFlag = "exclude-namespaces" | ||
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| targetObjectsFlag = "target-objects" | ||
| ignoreObjectsFlag = "exclude-objects" | ||
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| workerRoutinesFlag = "worker-routines" | ||
| ) | ||
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| type ExportOptions struct { | ||
| kubeconfig string | ||
| reportNamePrefix string | ||
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| targetNamespaces []string | ||
| ignoreNamespaces []string | ||
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| targetObjects []string | ||
| ignoreObjects []string | ||
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| workerRoutines int | ||
| } | ||
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| func (o *ExportOptions) AddFlags(flags *pflag.FlagSet) { | ||
| flags.StringVarP(&o.kubeconfig, kubeconfigFlag, "", o.kubeconfig, "path to the kubeconfig file.") | ||
| flags.StringVarP(&o.reportNamePrefix, reportNamePrefixFlag, "", o.reportNamePrefix, "Prefix for the report name. The tool appends a timestamp to this in the format \"YYYYMMDD-HHMMSS.milliseconds\".") | ||
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| flags.StringArrayVarP(&o.targetNamespaces, targetNamespacesFlag, "", o.targetNamespaces, "namespace prefix to target the export tool. Targets all if empty. Can be specified multiple times.") | ||
| flags.StringArrayVarP(&o.ignoreNamespaces, ignoreNamespacesFlag, "", o.ignoreNamespaces, "namespace prefix to ignore. Excludes nothing if empty. Can be specified multiple times. Defaults to \"kube\".") | ||
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| flags.StringArrayVarP(&o.targetObjects, targetObjectsFlag, "", o.targetObjects, "object name prefix to target. Targets all if empty. Can be specified multiple times.") | ||
| flags.StringArrayVarP(&o.ignoreObjects, ignoreObjectsFlag, "", o.ignoreObjects, "object name prefix to ignore. Excludes nothing if empty. Can be specified multiple times.") | ||
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| flags.IntVarP(&o.workerRoutines, workerRoutinesFlag, "", o.workerRoutines, "Configure the number of worker routines to export namespaces with. Defaults to 10. ") | ||
| } | ||
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| func (opts *ExportOptions) validateFlags() error { | ||
| if opts.workerRoutines <= 0 || opts.workerRoutines > 100 { | ||
| return fmt.Errorf("invalid value %d for flag %s. Supported values are [1,100]", opts.workerRoutines, workerRoutinesFlag) | ||
| } | ||
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| return nil | ||
| } | ||
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| func (o *ExportOptions) Print() { | ||
| log.Printf("kubeconfig set to %q.\n", o.kubeconfig) | ||
| log.Printf("reportNamePrefix set to %q.\n", o.reportNamePrefix) | ||
| log.Printf("targetNamespaces set to %v.\n", o.targetNamespaces) | ||
| log.Printf("ignoreNamespaces set to %v.\n", o.ignoreNamespaces) | ||
| log.Printf("targetObjects set to %v.\n", o.targetObjects) | ||
| log.Printf("ignoreObjects set to %v.\n", o.ignoreObjects) | ||
| log.Printf("workerRoutines set to %d.\n", o.workerRoutines) | ||
| } | ||
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| func NewExportOptions() *ExportOptions { | ||
| o := ExportOptions{ | ||
| kubeconfig: "", | ||
| reportNamePrefix: "report", | ||
| targetNamespaces: []string{}, | ||
| ignoreNamespaces: []string{"kube"}, | ||
| targetObjects: []string{}, | ||
| ignoreObjects: []string{}, | ||
| workerRoutines: 10, | ||
| } | ||
| return &o | ||
| } |
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