129 lines
3.3 KiB
Go
129 lines
3.3 KiB
Go
// Copyright 2019 Sorint.lab
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package driver
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import (
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"context"
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"fmt"
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"io"
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"os"
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"path/filepath"
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"agola.io/agola/internal/errors"
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"agola.io/agola/internal/services/executor/registry"
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"agola.io/agola/services/types"
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)
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const (
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toolboxPrefix = "agola-toolbox"
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labelPrefix = "agola.io/"
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agolaLabelKey = labelPrefix + "agola"
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agolaLabelValue = "true"
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executorIDKey = labelPrefix + "executorid"
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podIDKey = labelPrefix + "podid"
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taskIDKey = labelPrefix + "taskid"
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containerIndexKey = labelPrefix + "containerindex"
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)
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// Driver is a generic interface around the pod concept (a group of "containers"
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// sharing, at least, the same network namespace)
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// It's just tailored aroun the need of an executor and should be quite generic
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// to work with multiple implementations. For example:
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// * Docker containers
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// * Kubernetes pods
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// * A Virtual Machine on which we execute multiple processes
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type Driver interface {
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Setup(ctx context.Context) error
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NewPod(ctx context.Context, podConfig *PodConfig, out io.Writer) (Pod, error)
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GetPods(ctx context.Context, all bool) ([]Pod, error)
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ExecutorGroup(ctx context.Context) (string, error)
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GetExecutors(ctx context.Context) ([]string, error)
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Archs(ctx context.Context) ([]types.Arch, error)
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}
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type Pod interface {
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// ID returns the pod id
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ID() string
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// ExecutorID return the pod owner executor id
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ExecutorID() string
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// TaskID return the pod task id
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TaskID() string
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// Stop stops the pod
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Stop(ctx context.Context) error
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// Stop stops the pod
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Remove(ctx context.Context) error
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// Exec executes a command inside the first container in the Pod
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Exec(ctx context.Context, execConfig *ExecConfig) (ContainerExec, error)
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}
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type ContainerExec interface {
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Stdin() io.WriteCloser
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Wait(ctx context.Context) (int, error)
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}
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type PodConfig struct {
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ID string
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TaskID string
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Containers []*ContainerConfig
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Arch types.Arch
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// The container dir where the init volume will be mounted
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InitVolumeDir string
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DockerConfig *registry.DockerConfig
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}
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type ContainerConfig struct {
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Cmd []string
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Env map[string]string
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WorkingDir string
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Image string
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User string
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Privileged bool
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Volumes []Volume
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}
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type Volume struct {
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Path string
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TmpFS *VolumeTmpFS
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}
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type VolumeTmpFS struct {
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Size int64
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}
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type ExecConfig struct {
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Cmd []string
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Env map[string]string
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WorkingDir string
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User string
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AttachStdin bool
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Stdout io.Writer
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Stderr io.Writer
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Tty bool
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}
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func toolboxExecPath(toolboxDir string, arch types.Arch) (string, error) {
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toolboxPath := filepath.Join(toolboxDir, fmt.Sprintf("%s-linux-%s", toolboxPrefix, arch))
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_, err := os.Stat(toolboxPath)
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if err != nil {
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return "", errors.WithStack(err)
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}
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return toolboxPath, nil
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}
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