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task.go
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task.go
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// Copyright 2023 The PipeCD Authors.
//
// 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.
package ecs
import (
"fmt"
"os"
"strings"
"github.com/aws/aws-sdk-go-v2/service/ecs/types"
"sigs.k8s.io/yaml"
"github.com/pipe-cd/pipecd/pkg/model"
)
func loadTaskDefinition(path string) (types.TaskDefinition, error) {
data, err := os.ReadFile(path)
if err != nil {
return types.TaskDefinition{}, err
}
return parseTaskDefinition(data)
}
func parseTaskDefinition(data []byte) (types.TaskDefinition, error) {
var obj types.TaskDefinition
if err := yaml.Unmarshal(data, &obj); err != nil {
return types.TaskDefinition{}, err
}
return obj, nil
}
// FindImageTag parses image tag from given ECS task definition.
func FindImageTag(taskDefinition types.TaskDefinition) (string, error) {
if len(taskDefinition.ContainerDefinitions) == 0 {
return "", fmt.Errorf("container definition could not be empty")
}
name, tag := parseContainerImage(*taskDefinition.ContainerDefinitions[0].Image)
if name == "" {
return "", fmt.Errorf("image name could not be empty")
}
return tag, nil
}
func parseContainerImage(image string) (name, tag string) {
parts := strings.Split(image, ":")
if len(parts) == 2 {
tag = parts[1]
}
paths := strings.Split(parts[0], "/")
name = paths[len(paths)-1]
return
}
// FindArtifactVersions parses artifact versions from ECS task definition.
func FindArtifactVersions(taskDefinition types.TaskDefinition) ([]*model.ArtifactVersion, error) {
if len(taskDefinition.ContainerDefinitions) == 0 {
return nil, fmt.Errorf("container definition could not be empty")
}
// Remove duplicate images.
imageMap := map[string]struct{}{}
for _, cd := range taskDefinition.ContainerDefinitions {
imageMap[*cd.Image] = struct{}{}
}
versions := make([]*model.ArtifactVersion, 0, len(imageMap))
for i := range imageMap {
name, tag := parseContainerImage(i)
if name == "" {
return nil, fmt.Errorf("image name could not be empty")
}
versions = append(versions, &model.ArtifactVersion{
Kind: model.ArtifactVersion_CONTAINER_IMAGE,
Version: tag,
Name: name,
Url: i,
})
}
return versions, nil
}