airshipctl/pkg/container/container.go
Sidney Shiba f4e532e91a Extending Container interface and package
Adding the following method to the interface and implementation for
docker container:
- InspectContainer() - used to determine container status

Change-Id: I4a8096f4f5addad31daa5038a30b1ffcf1d424e9
2020-11-08 13:55:35 +00:00

65 lines
1.9 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"
)
// Status type provides container status
type Status string
// State provides information about the Container
type State struct {
// ExitCode: returns the container's exit code. Zero means exited normally, otherwise errored
ExitCode int
// Status: String representation of the container state.
Status Status
}
// 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) error
GetContainerLogs() (io.ReadCloser, error)
InspectContainer() (State, error)
WaitUntilFinished() 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}
}
}