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persistentworker.go
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persistentworker.go
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package persistentworker
import (
"errors"
"fmt"
"github.com/cirruslabs/cirrus-ci-agent/api"
"github.com/cirruslabs/cirrus-cli/internal/executor/instance/abstract"
"github.com/cirruslabs/cirrus-cli/internal/executor/instance/persistentworker/isolation/container"
"github.com/cirruslabs/cirrus-cli/internal/executor/instance/persistentworker/isolation/none"
"github.com/cirruslabs/cirrus-cli/internal/executor/instance/persistentworker/isolation/parallels"
"github.com/cirruslabs/cirrus-cli/internal/executor/instance/persistentworker/isolation/tart"
"github.com/cirruslabs/cirrus-cli/internal/executor/instance/persistentworker/isolation/vetu"
"github.com/cirruslabs/cirrus-cli/internal/logger"
"github.com/cirruslabs/cirrus-cli/internal/worker/security"
"runtime"
"strings"
)
var ErrInvalidIsolation = errors.New("invalid isolation parameters")
func New(isolation *api.Isolation, security *security.Security, logger logger.Lightweight) (abstract.Instance, error) {
if isolation == nil {
nonePolicy := security.NonePolicy()
if nonePolicy == nil {
return nil, fmt.Errorf("%w: \"none\" isolation is not allowed by this Persistent Worker's "+
"security settings", ErrInvalidIsolation)
}
return none.New(none.WithLogger(logger))
}
switch iso := isolation.Type.(type) {
case *api.Isolation_None_:
nonePolicy := security.NonePolicy()
if nonePolicy == nil {
return nil, fmt.Errorf("%w: \"none\" isolation is not allowed by this Persistent Worker's "+
"security settings", ErrInvalidIsolation)
}
return none.New(none.WithLogger(logger))
case *api.Isolation_Parallels_:
parallelsPolicy := security.ParallelsPolicy()
if parallelsPolicy == nil {
return nil, fmt.Errorf("%w: \"parallels\" isolation is not allowed by this Persistent Worker's "+
"security settings", ErrInvalidIsolation)
}
if iso.Parallels.Platform != api.Platform_DARWIN && iso.Parallels.Platform != api.Platform_LINUX {
return nil, fmt.Errorf("%w: only Darwin and Linux are currently supported for Parallels",
ErrInvalidIsolation)
}
if runtime.GOARCH != "amd64" {
return nil, fmt.Errorf("%w: only Intel (amd64) is currently supported for Parallels, "+
"use Tart if you're running on Apple silicon (arm64)", ErrInvalidIsolation)
}
return parallels.New(iso.Parallels.Image, iso.Parallels.User, iso.Parallels.Password,
strings.ToLower(iso.Parallels.Platform.String()), parallels.WithLogger(logger))
case *api.Isolation_Container_:
containerPolicy := security.ContainerPolicy()
if containerPolicy == nil {
return nil, fmt.Errorf("%w: \"container\" isolation is not allowed by this Persistent Worker's "+
"security settings", ErrInvalidIsolation)
}
return container.New(iso.Container.Image, iso.Container.Cpu, iso.Container.Memory, iso.Container.Volumes)
case *api.Isolation_Tart_:
return newTart(iso, security, logger)
case *api.Isolation_Vetu_:
return newVetu(iso, security, logger)
default:
return nil, fmt.Errorf("%w: unsupported isolation type %T", ErrInvalidIsolation, iso)
}
}
func newTart(iso *api.Isolation_Tart_, security *security.Security, logger logger.Lightweight) (*tart.Tart, error) {
tartPolicy := security.TartPolicy()
if tartPolicy == nil {
return nil, fmt.Errorf("%w: \"tart\" isolation is not allowed by this Persistent Worker's "+
"security settings", ErrInvalidIsolation)
}
if !tartPolicy.AllowedImages.ImageAllowed(iso.Tart.Image) {
return nil, fmt.Errorf("%w: \"tart\" VM image %q is not allowed by this Persistent Worker's "+
"security settings", ErrInvalidIsolation, iso.Tart.Image)
}
for _, volume := range iso.Tart.Volumes {
if !tartPolicy.VolumeAllowed(volume) {
var volumeIdent string
if volume.Name != "" {
volumeIdent = volume.Name
} else {
volumeIdent = volume.Source
}
return nil, fmt.Errorf("%w: volume %q is not allowed by this Persistent Worker's "+
"security settings", ErrInvalidIsolation, volumeIdent)
}
}
opts := []tart.Option{tart.WithVolumes(iso.Tart.Volumes), tart.WithLogger(logger)}
if iso.Tart.Softnet || tartPolicy.ForceSoftnet {
opts = append(opts, tart.WithSoftnet())
}
if iso.Tart.Display != "" {
opts = append(opts, tart.WithDisplay(iso.Tart.Display))
}
if iso.Tart.DiskSize != 0 {
opts = append(opts, tart.WithDiskSize(iso.Tart.DiskSize))
}
return tart.New(iso.Tart.Image, iso.Tart.User, iso.Tart.Password, uint16(iso.Tart.Port),
iso.Tart.Cpu, iso.Tart.Memory, opts...)
}
func newVetu(iso *api.Isolation_Vetu_, security *security.Security, logger logger.Lightweight) (*vetu.Vetu, error) {
vetuPolicy := security.VetuPolicy()
if vetuPolicy == nil {
return nil, fmt.Errorf("%w: \"vetu\" isolation is not allowed by this Persistent Worker's "+
"security settings", ErrInvalidIsolation)
}
if !vetuPolicy.AllowedImages.ImageAllowed(iso.Vetu.Image) {
return nil, fmt.Errorf("%w: \"vetu\" VM image %q is not allowed by this Persistent Worker's "+
"security settings", ErrInvalidIsolation, iso.Vetu.Image)
}
opts := []vetu.Option{vetu.WithLogger(logger)}
switch networking := iso.Vetu.Networking.(type) {
case *api.Isolation_Vetu_Bridged_:
opts = append(opts, vetu.WithBridgedInterface(networking.Bridged.Interface))
case *api.Isolation_Vetu_Host_:
opts = append(opts, vetu.WithHostNetworking())
default:
// use default gVisor-backed networking
}
if iso.Vetu.DiskSize != 0 {
opts = append(opts, vetu.WithDiskSize(iso.Vetu.DiskSize))
}
return vetu.New(iso.Vetu.Image, iso.Vetu.User, iso.Vetu.Password, uint16(iso.Vetu.Port),
iso.Vetu.Cpu, iso.Vetu.Memory, opts...)
}