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|
package docker
import (
"context"
"fmt"
"strconv"
"strings"
"github.com/docker/buildx/driver"
dockeropts "github.com/docker/cli/opts"
dockerclient "github.com/docker/docker/client"
"github.com/pkg/errors"
)
const prioritySupported = 30
const priorityUnsupported = 70
const defaultRestartPolicy = "unless-stopped"
func init() {
driver.Register(&factory{})
}
type factory struct {
}
func (*factory) Name() string {
return "docker-container"
}
func (*factory) Usage() string {
return "docker-container"
}
func (*factory) Priority(ctx context.Context, endpoint string, api dockerclient.APIClient, dialMeta map[string][]string) int {
if api == nil {
return priorityUnsupported
}
return prioritySupported
}
func (f *factory) New(ctx context.Context, cfg driver.InitConfig) (driver.Driver, error) {
if cfg.DockerAPI == nil {
return nil, errors.Errorf("%s driver requires docker API access", f.Name())
}
rp, err := dockeropts.ParseRestartPolicy(defaultRestartPolicy)
if err != nil {
return nil, err
}
d := &Driver{
factory: f,
InitConfig: cfg,
restartPolicy: rp,
}
for k, v := range cfg.DriverOpts {
switch {
case k == "network":
d.netMode = v
case k == "image":
d.image = v
case k == "memory":
if err := d.memory.Set(v); err != nil {
return nil, err
}
case k == "memory-swap":
if err := d.memorySwap.Set(v); err != nil {
return nil, err
}
case k == "cpu-period":
vv, err := strconv.ParseInt(v, 10, 0)
if err != nil {
return nil, err
}
d.cpuPeriod = vv
case k == "cpu-quota":
vv, err := strconv.ParseInt(v, 10, 0)
if err != nil {
return nil, err
}
d.cpuQuota = vv
case k == "cpu-shares":
vv, err := strconv.ParseInt(v, 10, 0)
if err != nil {
return nil, err
}
d.cpuShares = vv
case k == "cpuset-cpus":
d.cpusetCpus = v
case k == "cpuset-mems":
d.cpusetMems = v
case k == "cgroup-parent":
d.cgroupParent = v
case k == "restart-policy":
d.restartPolicy, err = dockeropts.ParseRestartPolicy(v)
if err != nil {
return nil, err
}
case k == "default-load":
d.defaultLoad, err = strconv.ParseBool(v)
if err != nil {
return nil, err
}
case strings.HasPrefix(k, "env."):
envName := strings.TrimPrefix(k, "env.")
if envName == "" {
return nil, errors.Errorf("invalid env option %q, expecting env.FOO=bar", k)
}
d.env = append(d.env, fmt.Sprintf("%s=%s", envName, v))
default:
return nil, errors.Errorf("invalid driver option %s for docker-container driver", k)
}
}
return d, nil
}
func (f *factory) AllowsInstances() bool {
return true
}
|
