| /* |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You 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. |
| */ |
| |
| package repository |
| |
| import ( |
| "context" |
| "fmt" |
| "strings" |
| |
| v1 "github.com/apache/camel-k/pkg/apis/camel/v1" |
| "github.com/apache/camel-k/pkg/apis/camel/v1alpha1" |
| camel "github.com/apache/camel-k/pkg/client/camel/clientset/versioned" |
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" |
| ) |
| |
| const ( |
| // NoneRepository is a marker used to indicate that no repository should be used |
| NoneRepository = "none" |
| ) |
| |
| var DefaultRemoteRepository = "github:apache/camel-kamelets" |
| |
| // KameletRepository can be used to obtain a Kamelet definition, looking it up in one or more physical locations |
| type KameletRepository interface { |
| |
| // List the kamelets available in the repository |
| List(ctx context.Context) ([]string, error) |
| |
| // Get the Kamelet corresponding to the given name, or nil if not found |
| Get(ctx context.Context, name string) (*v1alpha1.Kamelet, error) |
| |
| // String information about the repository |
| String() string |
| } |
| |
| // New creates a KameletRepository for the given namespaces. |
| // Kamelets are first looked up in all the given namespaces, in the order they appear. |
| // If one namespace defines an IntegrationPlatform (only the first IntegrationPlatform in state "Ready" found), |
| // then all kamelet repository URIs defined in the IntegrationPlatform are included. |
| func New(ctx context.Context, client camel.Interface, namespaces ...string) (KameletRepository, error) { |
| namespaces = makeDistinctNonEmpty(namespaces) |
| platform, err := lookupPlatform(ctx, client, namespaces...) |
| if err != nil { |
| return nil, err |
| } |
| return NewForPlatform(ctx, client, platform, namespaces...) |
| } |
| |
| // NewForPlatform creates a KameletRepository for the given namespaces and platform. |
| // Kamelets are first looked up in all the given namespaces, in the order they appear, |
| // then repositories defined in the platform are looked up. |
| func NewForPlatform(ctx context.Context, client camel.Interface, platform *v1.IntegrationPlatform, namespaces ...string) (KameletRepository, error) { |
| namespaces = makeDistinctNonEmpty(namespaces) |
| repoImpls := make([]KameletRepository, 0) |
| for _, namespace := range namespaces { |
| // Add first a namespace local repository for each namespace |
| repoImpls = append(repoImpls, newKubernetesKameletRepository(client, namespace)) |
| } |
| if platform != nil { |
| repos := getRepositoriesFromPlatform(platform) |
| for _, repoURI := range repos { |
| repoImpl, err := newFromURI(repoURI) |
| if err != nil { |
| return nil, err |
| } |
| repoImpls = append(repoImpls, repoImpl) |
| } |
| } else { |
| // Add default repo |
| defaultRepoImpl, err := newFromURI(DefaultRemoteRepository) |
| if err != nil { |
| return nil, err |
| } |
| repoImpls = append(repoImpls, defaultRepoImpl) |
| } |
| |
| return newCompositeKameletRepository(repoImpls...), nil |
| } |
| |
| // NewStandalone creates a KameletRepository that can be used in cases where there's no connection to a Kubernetes cluster. |
| // The given uris are used to construct the repositories. |
| // If the uris parameter is nil, then only the DefaultRemoteRepository will be included. |
| func NewStandalone(uris ...string) (KameletRepository, error) { |
| repoImpls := make([]KameletRepository, 0, len(uris)+1) |
| for _, repoURI := range uris { |
| repoImpl, err := newFromURI(repoURI) |
| if err != nil { |
| return nil, err |
| } |
| if repoImpl != nil { |
| repoImpls = append(repoImpls, repoImpl) |
| } |
| } |
| if len(repoImpls) == 0 { |
| defaultRepoImpl, err := newFromURI(DefaultRemoteRepository) |
| if err != nil { |
| return nil, err |
| } |
| if defaultRepoImpl != nil { |
| repoImpls = append(repoImpls, defaultRepoImpl) |
| } |
| } |
| return newCompositeKameletRepository(repoImpls...), nil |
| } |
| |
| func lookupPlatform(ctx context.Context, client camel.Interface, namespaces ...string) (*v1.IntegrationPlatform, error) { |
| for _, namespace := range namespaces { |
| pls, err := client.CamelV1().IntegrationPlatforms(namespace).List(ctx, metav1.ListOptions{}) |
| if err != nil { |
| return nil, err |
| } |
| for _, pl := range pls.Items { |
| if pl.Status.Phase == v1.IntegrationPlatformPhaseReady { |
| return &pl, nil |
| } |
| } |
| if len(pls.Items) > 0 { |
| // If none is ready, return the first one |
| return &pls.Items[0], nil |
| } |
| } |
| return nil, nil |
| } |
| |
| func getRepositoriesFromPlatform(platform *v1.IntegrationPlatform) []string { |
| if platform == nil { |
| return nil |
| } |
| repos := platform.Status.Kamelet.Repositories |
| if len(repos) == 0 { |
| // Maybe not reconciled yet |
| repos = platform.Spec.Kamelet.Repositories |
| } |
| res := make([]string, 0, len(repos)) |
| for _, repo := range repos { |
| res = append(res, repo.URI) |
| } |
| return res |
| } |
| |
| func newFromURI(uri string) (KameletRepository, error) { |
| if uri == NoneRepository { |
| return newEmptyKameletRepository(), nil |
| } else if strings.HasPrefix(uri, "github:") { |
| desc := strings.TrimPrefix(uri, "github:") |
| var version string |
| if strings.Contains(desc, "@") { |
| pos := strings.LastIndex(desc, "@") |
| version = desc[pos+1:] |
| desc = desc[0:pos] |
| } |
| parts := strings.Split(desc, "/") |
| if len(parts) < 2 { |
| return nil, fmt.Errorf("expected format is github:owner/repo[/path][@version], got: %s", uri) |
| } |
| owner := parts[0] |
| repo := parts[1] |
| var path string |
| if len(parts) >= 3 { |
| path = strings.Join(parts[2:], "/") |
| } |
| return newGithubKameletRepository(owner, repo, path, version), nil |
| } |
| return nil, fmt.Errorf("invalid uri: %s", uri) |
| } |
| |
| func makeDistinctNonEmpty(names []string) []string { |
| res := make([]string, 0, len(names)) |
| presence := make(map[string]bool, len(names)) |
| for _, n := range names { |
| if n == "" || presence[n] { |
| continue |
| } |
| presence[n] = true |
| res = append(res, n) |
| } |
| return res |
| } |