act_runner/internal/app/run/runner.go

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// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package run
import (
"context"
"encoding/json"
"fmt"
"path/filepath"
"strings"
"sync"
"time"
runnerv1 "code.gitea.io/actions-proto-go/runner/v1"
"github.com/bufbuild/connect-go"
Add configuration item of `container.network` (#184) Close https://gitea.com/gitea/act_runner/issues/177 Related https://gitea.com/gitea/act/pulls/56 ### ⚠️ Breaking The `container.network_mode` is a deprecated configuration item. It may be removed after Gitea 1.20 released. Previously, if the value of `container.network_mode` is `bridge`, it means that `act_runner` will create a new network for job.But `bridge` is easily confused with the bridge network created by Docker by default. We recommand that using `container.network` to specify the network to which containers created by `act_runner` connect. ### 🆕 container.network The configuration file of `act_runner` add a new item of `contianer.network`. In `config.example.yaml`: ```yaml container: # Specifies the network to which the container will connect. # Could be host, bridge or the name of a custom network. # If it's empty, act_runner will create a network automatically. network: "" ``` As the comment in the example above says, the purpose of the `container.network` is specifying the network to which containers created by `act_runner` will connect. `container.network` accepts the following valid values: - `host`: All of containers (including job containers and service contianers) created by `act_runner` will be connected to the network named `host` which is created automatically by Docker. Containers will share the host’s network stack and all interfaces from the host will be available to these containers. - `bridge`: It is similar to `host`. All of containers created by `act_runner` will be connected to the network named `bridge` which is created automatically by Docker. All containers connected to the `bridge` (Perhaps there are containers that are not created by `act_runner`) are allowed to communicate with each other, while providing isolation from containers which are not connected to that `bridge` network. - `<custom_network>`: Please make sure that the `<custom_network>` network already exists firstly (`act_runner` does not detect whether the specified network exists currently. If not exists yet, will return error in the stage of `docker create`). All of containers created by `act_runner` will be connected to `<custom_network>`. After the job is executed, containers are removed and automatically disconnected from the `<custom_network>`. - empty: `act_runner` will create a new network for each job container and their service containers (if defined in workflow). So each job container and their service containers share a network environment, but are isolated from others container and the Docker host. Of course, these networks created by `act_runner` will be removed at last. ### Others - If you do not have special needs, we highly recommend that setting `container.network` to empty string (and do not use `container.network_mode` any more). Because the containers created by `act_runner` will connect to the networks that are created by itself. This point will provide better isolation. - If you set `contianer.network` to empty string or `<custom_network>`, we can be access to service containers by `<service-id>:<port>` in the steps of job. Because we added an alias to the service container when connecting to the network. Co-authored-by: Jason Song <i@wolfogre.com> Reviewed-on: https://gitea.com/gitea/act_runner/pulls/184 Reviewed-by: Jason Song <i@wolfogre.com> Co-authored-by: sillyguodong <gedong_1994@163.com> Co-committed-by: sillyguodong <gedong_1994@163.com>
2023-05-16 14:46:59 +08:00
"github.com/docker/docker/api/types/container"
"github.com/nektos/act/pkg/artifactcache"
"github.com/nektos/act/pkg/common"
"github.com/nektos/act/pkg/model"
"github.com/nektos/act/pkg/runner"
log "github.com/sirupsen/logrus"
"gitea.com/gitea/act_runner/internal/pkg/client"
"gitea.com/gitea/act_runner/internal/pkg/config"
"gitea.com/gitea/act_runner/internal/pkg/labels"
"gitea.com/gitea/act_runner/internal/pkg/report"
"gitea.com/gitea/act_runner/internal/pkg/ver"
)
// Runner runs the pipeline.
type Runner struct {
name string
cfg *config.Config
client client.Client
labels labels.Labels
envs map[string]string
runningTasks sync.Map
}
func NewRunner(cfg *config.Config, reg *config.Registration, cli client.Client) *Runner {
ls := labels.Labels{}
for _, v := range reg.Labels {
if l, err := labels.Parse(v); err == nil {
ls = append(ls, l)
}
}
envs := make(map[string]string, len(cfg.Runner.Envs))
for k, v := range cfg.Runner.Envs {
envs[k] = v
}
if cfg.Cache.Enabled == nil || *cfg.Cache.Enabled {
if cfg.Cache.ExternalServer != "" {
envs["ACTIONS_CACHE_URL"] = cfg.Cache.ExternalServer
} else {
cacheHandler, err := artifactcache.StartHandler(
cfg.Cache.Dir,
cfg.Cache.Host,
cfg.Cache.Port,
log.StandardLogger().WithField("module", "cache_request"),
)
if err != nil {
log.Errorf("cannot init cache server, it will be disabled: %v", err)
// go on
} else {
envs["ACTIONS_CACHE_URL"] = cacheHandler.ExternalURL() + "/"
}
}
}
// set artifact gitea api
artifactGiteaAPI := strings.TrimSuffix(cli.Address(), "/") + "/api/actions_pipeline/"
envs["ACTIONS_RUNTIME_URL"] = artifactGiteaAPI
// Set specific environments to distinguish between Gitea and GitHub
envs["GITEA_ACTIONS"] = "true"
envs["GITEA_ACTIONS_RUNNER_VERSION"] = ver.Version()
return &Runner{
name: reg.Name,
cfg: cfg,
client: cli,
labels: ls,
envs: envs,
}
}
func (r *Runner) Run(ctx context.Context, task *runnerv1.Task) error {
if _, ok := r.runningTasks.Load(task.Id); ok {
return fmt.Errorf("task %d is already running", task.Id)
}
r.runningTasks.Store(task.Id, struct{}{})
defer r.runningTasks.Delete(task.Id)
ctx, cancel := context.WithTimeout(ctx, r.cfg.Runner.Timeout)
defer cancel()
reporter := report.NewReporter(ctx, cancel, r.client, task)
var runErr error
defer func() {
lastWords := ""
if runErr != nil {
lastWords = runErr.Error()
}
_ = reporter.Close(lastWords)
}()
reporter.RunDaemon()
runErr = r.run(ctx, task, reporter)
return nil
}
func (r *Runner) run(ctx context.Context, task *runnerv1.Task, reporter *report.Reporter) (err error) {
defer func() {
if r := recover(); r != nil {
err = fmt.Errorf("panic: %v", r)
}
}()
reporter.Logf("%s(version:%s) received task %v of job %v, be triggered by event: %s", r.name, ver.Version(), task.Id, task.Context.Fields["job"].GetStringValue(), task.Context.Fields["event_name"].GetStringValue())
workflow, jobID, err := generateWorkflow(task)
if err != nil {
return err
}
plan, err := model.CombineWorkflowPlanner(workflow).PlanJob(jobID)
if err != nil {
return err
}
job := workflow.GetJob(jobID)
reporter.ResetSteps(len(job.Steps))
taskContext := task.Context.Fields
log.Infof("task %v repo is %v %v %v", task.Id, taskContext["repository"].GetStringValue(),
taskContext["gitea_default_actions_url"].GetStringValue(),
r.client.Address())
preset := &model.GithubContext{
Event: taskContext["event"].GetStructValue().AsMap(),
RunID: taskContext["run_id"].GetStringValue(),
RunNumber: taskContext["run_number"].GetStringValue(),
Actor: taskContext["actor"].GetStringValue(),
Repository: taskContext["repository"].GetStringValue(),
EventName: taskContext["event_name"].GetStringValue(),
Sha: taskContext["sha"].GetStringValue(),
Ref: taskContext["ref"].GetStringValue(),
RefName: taskContext["ref_name"].GetStringValue(),
RefType: taskContext["ref_type"].GetStringValue(),
HeadRef: taskContext["head_ref"].GetStringValue(),
BaseRef: taskContext["base_ref"].GetStringValue(),
Token: taskContext["token"].GetStringValue(),
RepositoryOwner: taskContext["repository_owner"].GetStringValue(),
RetentionDays: taskContext["retention_days"].GetStringValue(),
}
if t := task.Secrets["GITEA_TOKEN"]; t != "" {
preset.Token = t
} else if t := task.Secrets["GITHUB_TOKEN"]; t != "" {
preset.Token = t
}
// use task token to action api token
r.envs["ACTIONS_RUNTIME_TOKEN"] = preset.Token
eventJSON, err := json.Marshal(preset.Event)
if err != nil {
return err
}
maxLifetime := 3 * time.Hour
if deadline, ok := ctx.Deadline(); ok {
maxLifetime = time.Until(deadline)
}
runnerConfig := &runner.Config{
// On Linux, Workdir will be like "/<parent_directory>/<owner>/<repo>"
// On Windows, Workdir will be like "\<parent_directory>\<owner>\<repo>"
Workdir: filepath.FromSlash(fmt.Sprintf("/%s/%s", r.cfg.Container.WorkdirParent, preset.Repository)),
BindWorkdir: false,
ActionCacheDir: filepath.FromSlash(r.cfg.Host.WorkdirParent),
ReuseContainers: false,
ForcePull: false,
ForceRebuild: false,
LogOutput: true,
JSONLogger: false,
Env: r.envs,
Secrets: task.Secrets,
GitHubInstance: strings.TrimSuffix(r.client.Address(), "/"),
AutoRemove: true,
NoSkipCheckout: true,
PresetGitHubContext: preset,
EventJSON: string(eventJSON),
ContainerNamePrefix: fmt.Sprintf("GITEA-ACTIONS-TASK-%d", task.Id),
ContainerMaxLifetime: maxLifetime,
ContainerNetworkMode: container.NetworkMode(r.cfg.Container.Network),
ContainerOptions: r.cfg.Container.Options,
ContainerDaemonSocket: r.cfg.Container.DockerHost,
Privileged: r.cfg.Container.Privileged,
DefaultActionInstance: taskContext["gitea_default_actions_url"].GetStringValue(),
PlatformPicker: r.labels.PickPlatform,
Vars: task.Vars,
ValidVolumes: r.cfg.Container.ValidVolumes,
}
rr, err := runner.New(runnerConfig)
if err != nil {
return err
}
executor := rr.NewPlanExecutor(plan)
reporter.Logf("workflow prepared")
// add logger recorders
ctx = common.WithLoggerHook(ctx, reporter)
execErr := executor(ctx)
reporter.SetOutputs(job.Outputs)
return execErr
}
func (r *Runner) Declare(ctx context.Context, labels []string) (*connect.Response[runnerv1.DeclareResponse], error) {
return r.client.Declare(ctx, connect.NewRequest(&runnerv1.DeclareRequest{
Version: ver.Version(),
Labels: labels,
}))
}