/
container.go
106 lines (85 loc) · 2.48 KB
/
container.go
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package docker
import (
"context"
dockerTypes "github.com/docker/docker/api/types"
containerTypes "github.com/docker/docker/api/types/container"
"github.com/jmartin84/emsci/log"
)
// ContainerCreate - create a container given an image name
func (client DockerClient) ContainerCreate(ctx context.Context, imageName, containerName string) (string, error) {
containerConfig := &containerTypes.Config{
Image: imageName,
Tty: true,
AttachStderr: false,
AttachStdin: false,
AttachStdout: false,
StdinOnce: false,
OpenStdin: true,
}
if exists, err := client.ImageExists(ctx, imageName); !exists || err != nil {
if err != nil {
return "", err
}
client.ImagePull(ctx, imageName)
}
container, err := client.DockerApi.ContainerCreate(ctx, containerConfig, nil, nil, containerName)
if err != nil {
return "", err
}
for _, warning := range container.Warnings {
log.Warn(warning)
}
if err := client.DockerApi.ContainerStart(ctx, container.ID, dockerTypes.ContainerStartOptions{}); err != nil {
return "", err
}
return container.ID, nil
}
// ContainerGetByID - return a container instance for a given id
func (client DockerClient) ContainerGetByID(ctx context.Context, id string) (*dockerTypes.Container, error) {
var container *dockerTypes.Container = nil
containers, err := client.ContainerList(ctx)
if err != nil {
return nil, err
}
for _, item := range containers {
if item.ID == id {
container = &item
break
}
}
return container, nil
}
// ContainerGetByName - return a container instance for a given name
func (client DockerClient) ContainerGetByName(ctx context.Context, name string) (*dockerTypes.Container, error) {
var container *dockerTypes.Container = nil
containers, err := client.ContainerList(ctx)
if err != nil {
return nil, err
}
for _, item := range containers {
for _, x := range item.Names {
if x == "/"+name {
container = &item
break
}
}
if container != nil {
break
}
}
return container, err
}
// ContainerList - returns a list of all running containers
func (client DockerClient) ContainerList(ctx context.Context) ([]dockerTypes.Container, error) {
containers, err := client.DockerApi.ContainerList(ctx, dockerTypes.ContainerListOptions{})
if err != nil {
return nil, err
}
return containers, nil
}
func (client DockerClient) ContainerRemove(ctx context.Context, id string) error {
if err := client.DockerApi.ContainerKill(ctx, id, "SIGKILL"); err != nil {
return err
}
return nil
}