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image.go
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image.go
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/*
* Copyright 2017-2018 IBM Corporation
*
* 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 learner
import (
"fmt"
"github.com/spf13/viper"
"github.com/AISphere/ffdl-commons/config"
framework "github.com/AISphere/ffdl-commons/framework"
)
//Image ...
type Image struct {
Framework, Version, Tag, Registry, Namespace string
}
var learnerConfigPath = "/etc/learner-config-json/learner-config.json"
//GetLearnerImageForFramework returns the full route for the learner image
func GetLearnerImageForFramework(image Image) string {
var learnerImage string
if image.Registry != "" && image.Namespace != "" {
learnerImage = fmt.Sprintf("%s/%s/%s:%s", image.Registry, image.Namespace, image.Framework, image.Version)
} else {
learnerTag := getLearnerTag(image.Framework, image.Version, image.Tag)
dockerRegistry := viper.GetString(config.LearnerRegistryKey)
learnerImage = fmt.Sprintf("%s/%s_gpu_%s:%s", dockerRegistry, image.Framework, image.Version, learnerTag)
}
return learnerImage
}
func getLearnerTag(frameworkVersion, version, learnerTagFromRequest string) string {
learnerTag := viper.GetString(config.LearnerTagKey)
// Use any tag in the request (ie, specified in the manifest)
learnerImageTagInManifest := learnerTagFromRequest
if "" == learnerImageTagInManifest {
// not in request; try looking up from configmap/learner-config
imageBuildTag := framework.GetImageBuildTagForFramework(frameworkVersion, version, learnerConfigPath)
if imageBuildTag != "" {
return imageBuildTag
}
} else {
learnerTag = learnerImageTagInManifest
}
return learnerTag
}