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images.go
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/
images.go
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/*
Copyright IBM Corp All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package helpers
import (
"encoding/base32"
"fmt"
"strings"
docker "github.com/fsouza/go-dockerclient"
"github.com/hyperledger/fabric/common/util"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
func AssertImagesExist(imageNames ...string) {
dockerClient, err := docker.NewClientFromEnv()
Expect(err).NotTo(HaveOccurred())
for _, imageName := range imageNames {
images, err := dockerClient.ListImages(docker.ListImagesOptions{
Filter: imageName,
})
ExpectWithOffset(1, err).NotTo(HaveOccurred())
if len(images) != 1 {
Fail(fmt.Sprintf("missing required image: %s", imageName), 1)
}
}
}
// UniqueName generates base-32 enocded UUIDs for container names.
func UniqueName() string {
name := base32.StdEncoding.WithPadding(base32.NoPadding).EncodeToString(util.GenerateBytesUUID())
return strings.ToLower(name)
}