90 lines
3.1 KiB
Go
90 lines
3.1 KiB
Go
/*
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Copyright 2022 The Flux 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 kube
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import (
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"github.com/fluxcd/pkg/runtime/client"
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"k8s.io/cli-runtime/pkg/genericclioptions"
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)
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const (
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// DefaultKubeConfigSecretKey is the default data key ConfigFromSecret
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// looks at when no data key is provided.
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DefaultKubeConfigSecretKey = "value"
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// DefaultKubeConfigSecretKeyExt is the default data key ConfigFromSecret
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// looks at when no data key is provided, and DefaultKubeConfigSecretKey
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// does not exist.
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DefaultKubeConfigSecretKeyExt = DefaultKubeConfigSecretKey + ".yaml"
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)
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// clientGetterOptions used to BuildClientGetter.
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type clientGetterOptions struct {
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namespace string
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kubeConfig []byte
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impersonateAccount string
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impersonateNamespace string
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clientOptions client.Options
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kubeConfigOptions client.KubeConfigOptions
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}
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// ClientGetterOption configures a genericclioptions.RESTClientGetter.
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type ClientGetterOption func(o *clientGetterOptions)
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// WithKubeConfig creates a MemoryRESTClientGetter configured with the provided
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// KubeConfig and other values.
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func WithKubeConfig(kubeConfig []byte, opts client.KubeConfigOptions) func(o *clientGetterOptions) {
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return func(o *clientGetterOptions) {
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o.kubeConfig = kubeConfig
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o.kubeConfigOptions = opts
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}
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}
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// WithClientOptions configures the genericclioptions.RESTClientGetter with
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// provided options.
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func WithClientOptions(opts client.Options) func(o *clientGetterOptions) {
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return func(o *clientGetterOptions) {
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o.clientOptions = opts
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}
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}
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// WithImpersonate configures the genericclioptions.RESTClientGetter to
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// impersonate with the given account name in the provided namespace.
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// If the account name is empty, DefaultServiceAccountName is assumed.
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func WithImpersonate(accountName, namespace string) func(o *clientGetterOptions) {
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return func(o *clientGetterOptions) {
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o.impersonateAccount = accountName
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o.impersonateNamespace = namespace
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}
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}
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// BuildClientGetter builds a genericclioptions.RESTClientGetter based on the
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// provided options and returns the result. Namespace is not expected to be
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// empty. In case it fails to construct using NewInClusterRESTClientGetter, it
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// returns an error.
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func BuildClientGetter(namespace string, opts ...ClientGetterOption) (genericclioptions.RESTClientGetter, error) {
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o := &clientGetterOptions{
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namespace: namespace,
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}
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for _, opt := range opts {
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opt(o)
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}
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if len(o.kubeConfig) > 0 {
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return NewMemoryRESTClientGetter(o.kubeConfig, namespace, o.impersonateAccount, o.impersonateNamespace, o.clientOptions, o.kubeConfigOptions), nil
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}
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return NewInClusterRESTClientGetter(namespace, o.impersonateAccount, o.impersonateNamespace, &o.clientOptions)
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}
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