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package network
import (
"context"
"fmt"
"os"
"github.com/docker/docker/api/types"
"github.com/docker/docker/client"
"gotest.tools/assert/cmp"
)
// IsNetworkAvailable provides a comparison to check if a docker network is available
func IsNetworkAvailable(c client.NetworkAPIClient, name string) cmp.Comparison {
return func() cmp.Result {
networks, err := c.NetworkList(context.Background(), types.NetworkListOptions{})
if err != nil {
return cmp.ResultFromError(err)
}
for _, network := range networks {
if network.Name == name {
return cmp.ResultSuccess
}
}
return cmp.ResultFailure(fmt.Sprintf("could not find network %s", name))
}
}
// IsNetworkNotAvailable provides a comparison to check if a docker network is not available
func IsNetworkNotAvailable(c client.NetworkAPIClient, name string) cmp.Comparison {
return func() cmp.Result {
networks, err := c.NetworkList(context.Background(), types.NetworkListOptions{})
if err != nil {
return cmp.ResultFromError(err)
}
for _, network := range networks {
if network.Name == name {
return cmp.ResultFailure(fmt.Sprintf("network %s is still present", name))
}
}
return cmp.ResultSuccess
}
}
// IsUserNamespace returns whether the user namespace remapping is enabled
func IsUserNamespace() bool {
root := os.Getenv("DOCKER_REMAP_ROOT")
return root != ""
}
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