airshipctl/pkg/container/container.go
Stanislav Egorov 611d73a2ee Added error handler for empty runtime entry
If there is no container runtime defined in the airshipctl
config then the error message is not clear. New handler shows
specific error description

Change-Id: Ib5b735ddaa1556a8a88fdb15c4b3942cd010db9b
2020-04-24 15:34:27 -07:00

52 lines
1.6 KiB
Go

/*
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
https://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 container
import (
"context"
"io"
)
// Container interface abstraction for container.
// Particular implementation depends on container runtime environment (CRE). Interface
// defines methods that must be implemented for CRE (e.g. docker, containerd or CRI-O)
type Container interface {
ImagePull() error
RunCommand([]string, io.Reader, []string, []string, bool) error
RunCommandOutput([]string, io.Reader, []string, []string) (io.ReadCloser, error)
RmContainer() error
GetID() string
}
// NewContainer returns instance of Container interface implemented by particular driver
// Returned instance type (i.e. implementation) depends on driver specified via function
// arguments (e.g. "docker").
// Supported drivers:
// * docker
func NewContainer(ctx *context.Context, driver string, url string) (Container, error) {
switch driver {
case "":
return nil, ErrNoContainerDriver{}
case "docker":
cli, err := NewDockerClient(ctx)
if err != nil {
return nil, err
}
return NewDockerContainer(ctx, url, cli)
default:
return nil, ErrContainerDrvNotSupported{Driver: driver}
}
}