mirror of
https://github.com/projectcapsule/capsule.git
synced 2026-08-23 22:46:59 +00:00
88 lines
2.6 KiB
Go
88 lines
2.6 KiB
Go
/*
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Copyright 2020 Clastix Labs.
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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 configuration
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import (
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"context"
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"regexp"
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"github.com/pkg/errors"
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machineryerr "k8s.io/apimachinery/pkg/api/errors"
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"k8s.io/apimachinery/pkg/types"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"github.com/clastix/capsule/api/v1alpha1"
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)
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// capsuleConfiguration is the Capsule Configuration retrieval mode
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// using a closure that provides the desired configuration.
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type capsuleConfiguration struct {
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retrievalFn func() *v1alpha1.CapsuleConfiguration
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}
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func NewCapsuleConfiguration(client client.Client, name string) Configuration {
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return &capsuleConfiguration{retrievalFn: func() *v1alpha1.CapsuleConfiguration {
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config := &v1alpha1.CapsuleConfiguration{}
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if err := client.Get(context.Background(), types.NamespacedName{Name: name}, config); err != nil {
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if machineryerr.IsNotFound(err) {
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return &v1alpha1.CapsuleConfiguration{
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Spec: v1alpha1.CapsuleConfigurationSpec{
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UserGroups: []string{"capsule.clastix.io"},
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ForceTenantPrefix: false,
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ProtectedNamespaceRegexpString: "",
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AllowTenantIngressHostnamesCollision: false,
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AllowIngressHostnameCollision: true,
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},
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}
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}
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panic(errors.Wrap(err, "Cannot retrieve Capsule configuration with name "+name))
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}
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return config
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}}
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}
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func (c capsuleConfiguration) AllowIngressHostnameCollision() bool {
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return c.retrievalFn().Spec.AllowIngressHostnameCollision
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}
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func (c capsuleConfiguration) AllowTenantIngressHostnamesCollision() bool {
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return c.retrievalFn().Spec.AllowTenantIngressHostnamesCollision
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}
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func (c capsuleConfiguration) ProtectedNamespaceRegexp() (*regexp.Regexp, error) {
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expr := c.retrievalFn().Spec.ProtectedNamespaceRegexpString
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if len(expr) == 0 {
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return nil, nil
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}
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r, err := regexp.Compile(expr)
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if err != nil {
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return nil, errors.Wrap(err, "Cannot compile the protected namespace regexp")
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}
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return r, nil
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}
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func (c capsuleConfiguration) ForceTenantPrefix() bool {
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return c.retrievalFn().Spec.ForceTenantPrefix
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}
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func (c capsuleConfiguration) UserGroups() []string {
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return c.retrievalFn().Spec.UserGroups
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}
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