58f39ffa95
This commit provides the Go code and scripts for the Bootstrap container for Azure. The Bootstrap container (bootstrap_capz) for Azure is designed to accept three commands: create, delete and help. - create - will create an Ephemeral AKS cluster in Azure Cloud - delete - will delete the Ephemeral AKS cluster from the Azure Cloud - help - Stdout the help text for using this container. Please, refer to the bootstrap_capz/README.md for further details. Change-Id: Id1947f7b831a5d6cf59296cf39ff2b436080483d
138 lines
3.9 KiB
Go
138 lines
3.9 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package config
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import (
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"errors"
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"io/ioutil"
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"log"
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"gopkg.in/go-playground/validator.v9"
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"sigs.k8s.io/yaml"
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)
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// AzureConfig holds configurations for bootstrap steps
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type AzureConfig struct {
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// +optional
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Kind string `json:"kind" validate:"required"`
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// +optional
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APIVersion string `json:"apiVersion" validate:"required"`
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// Configuration parameters for metadata
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Metadata *Metadata `json:"metadata"`
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// Configuration parameters for metadata
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Credentials *Credentials `json:"credentials" validate:"required"`
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// Configuration parameters for spec
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Spec *Spec `json:"spec"`
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}
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// Metadata structure provides the cluster name to assign and labels to the k8s cluster
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type Metadata struct {
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Name string `json:"name" validate:"required"`
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Labels []string `json:"labels,omitempty"`
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}
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// Credentials structu provides the credentials to authenticate with Azure Cloud
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type Credentials struct {
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Tenant string `json:"tenant" validate:"required"`
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Client string `json:"client" validate:"required"`
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Secret string `json:"secret" validate:"required"`
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}
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// Spec structure contains the info for the ck8s luster to deploy
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type Spec struct {
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Region string `json:"region,omitempty"`
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ResourceGroup string `json:"resourceGroup,omitempty"`
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Cluster Cluster `json:"cluster"`
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}
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// Cluster struct provides data for the k8s cluster to deploy
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type Cluster struct {
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// Kubernetes version to deploy
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K8SVersion string `json:"k8sVersion,omitempty"`
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// Azure VM size to use for the cluster
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VMSize string `json:"vmSize,omitempty"`
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// Number of nodes to deploy for the cluster
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Replicas uint8 `json:"replicas,omitempty" validate:"gte=1,lte=100"`
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// Kubeconfig filename to save
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Kubeconfig string `json:"kubeconfig,omitempty"`
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}
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// ReadYAMLFile reads YAML-formatted configuration file and
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// de-serializes it to a given object
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func ReadYAMLFile(filePath string, cfg *AzureConfig) error {
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data, err := ioutil.ReadFile(filePath)
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if err != nil {
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log.Printf("yamlFile.Get err #%v ", err)
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return err
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}
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return yaml.Unmarshal(data, cfg)
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}
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// ReadYAMLtoJSON reads YAML-formatted configuration file and
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// de-serializes it to a given object
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func ReadYAMLtoJSON(filePath string) (string, error) {
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data, err := ioutil.ReadFile(filePath)
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if err != nil {
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log.Printf("Failed to read Azure Ephemeral configuration file: err #%v ", err)
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return "", err
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}
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jsonByte, err := yaml.YAMLToJSON(data)
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if err != nil {
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log.Printf("YAMLtoJSON err #%v ", err)
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return "", err
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}
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jsonStr := string(jsonByte)
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return jsonStr, nil
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}
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// ValidateConfigFile validates Azure configuration file for the Ephemeral Cluster
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func ValidateConfigFile(config *AzureConfig) error {
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var validate *validator.Validate
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validate = validator.New()
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err := validate.Struct(config)
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if err != nil {
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// this check is only needed when your code could produce
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// an invalid value for validation such as interface with nil value.
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var invalidError *validator.InvalidValidationError
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if errors.As(err, &invalidError) {
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log.Println(err)
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return err
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}
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log.Printf("Ephemeral cluster configuration file validation failed")
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for _, err := range err.(validator.ValidationErrors) {
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log.Printf(" Namespace = %s\n", err.Namespace())
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log.Printf(" Tag = %s\n", err.Tag())
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log.Printf(" Type = %s\n", err.Type())
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log.Printf(" Value = %s\n", err.Value())
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log.Printf(" Param = %s\n", err.Param())
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log.Println()
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}
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return err
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}
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return nil
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}
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