agola/internal/services/executor/driver/driver.go
Simone Gotti c1ff28ef9f *: export clients and related types
Export clients and related packages.

The main rule is to not import internal packages from exported packages.

The gateway client and related types are totally decoupled from the gateway
service (not shared types between the client and the server).

Instead the configstore and the runservice client currently share many types
that are now exported (decoupling them will require that a lot of types must be
duplicated and the need of functions to convert between them, this will be done
in future when the APIs will be declared as stable).
2019-08-02 12:02:01 +02:00

117 lines
3.1 KiB
Go

// Copyright 2019 Sorint.lab
//
// 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
//
// http://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 driver
import (
"context"
"fmt"
"io"
"os"
"path/filepath"
"agola.io/agola/internal/services/executor/registry"
"agola.io/agola/services/types"
)
const (
toolboxPrefix = "agola-toolbox"
labelPrefix = "agola.io/"
agolaLabelKey = labelPrefix + "agola"
agolaLabelValue = "true"
executorIDKey = labelPrefix + "executorid"
podIDKey = labelPrefix + "podid"
taskIDKey = labelPrefix + "taskid"
containerIndexKey = labelPrefix + "containerindex"
)
// Driver is a generic interface around the pod concept (a group of "containers"
// sharing, at least, the same network namespace)
// It's just tailored aroun the need of an executor and should be quite generic
// to work with multiple implementations. For example:
// * Docker containers
// * Kubernetes pods
// * A Virtual Machine on which we execute multiple processes
type Driver interface {
Setup(ctx context.Context) error
NewPod(ctx context.Context, podConfig *PodConfig, out io.Writer) (Pod, error)
GetPods(ctx context.Context, all bool) ([]Pod, error)
ExecutorGroup(ctx context.Context) (string, error)
GetExecutors(ctx context.Context) ([]string, error)
Archs(ctx context.Context) ([]types.Arch, error)
}
type Pod interface {
// ID returns the pod id
ID() string
// ExecutorID return the pod owner executor id
ExecutorID() string
// TaskID return the pod task id
TaskID() string
// Stop stops the pod
Stop(ctx context.Context) error
// Stop stops the pod
Remove(ctx context.Context) error
// Exec executes a command inside the first container in the Pod
Exec(ctx context.Context, execConfig *ExecConfig) (ContainerExec, error)
}
type ContainerExec interface {
Stdin() io.WriteCloser
Wait(ctx context.Context) (int, error)
}
type PodConfig struct {
ID string
TaskID string
Containers []*ContainerConfig
Arch types.Arch
// The container dir where the init volume will be mounted
InitVolumeDir string
DockerConfig *registry.DockerConfig
}
type ContainerConfig struct {
Cmd []string
Env map[string]string
WorkingDir string
Image string
User string
Privileged bool
}
type ExecConfig struct {
Cmd []string
Env map[string]string
WorkingDir string
User string
AttachStdin bool
Stdout io.Writer
Stderr io.Writer
Tty bool
}
func toolboxExecPath(toolboxDir string, arch types.Arch) (string, error) {
toolboxPath := filepath.Join(toolboxDir, fmt.Sprintf("%s-linux-%s", toolboxPrefix, arch))
_, err := os.Stat(toolboxPath)
if err != nil {
return "", err
}
return toolboxPath, nil
}