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/
reload.go
126 lines (101 loc) · 3.42 KB
/
reload.go
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package compose
import (
"fmt"
"github.com/rancher/os/config"
"github.com/rancher/os/pkg/docker"
"github.com/rancher/os/pkg/log"
"github.com/rancher/os/pkg/util/network"
yaml "github.com/cloudfoundry-incubator/candiedyaml"
composeConfig "github.com/docker/libcompose/config"
"github.com/docker/libcompose/project"
)
func LoadService(p *project.Project, cfg *config.CloudConfig, useNetwork bool, service string) error {
// First check the multi engine service file.
// If the name has been found in multi enging service file and matches, will not execute network.LoadServiceResource
// Otherwise will execute network.LoadServiceResource
bytes, err := network.LoadMultiEngineResource(service)
if err != nil || bytes == nil {
bytes, err = network.LoadServiceResource(service, useNetwork, cfg)
if err != nil {
log.Error(err)
return err
}
}
m := map[interface{}]interface{}{}
if err = yaml.Unmarshal(bytes, &m); err != nil {
e := fmt.Errorf("Failed to parse YAML configuration for %s: %v", service, err)
log.Error(e)
return e
}
m = adjustContainerNames(m)
bytes, err = yaml.Marshal(m)
if err != nil {
e := fmt.Errorf("Failed to marshal YAML configuration for %s: %v", service, err)
log.Error(e)
return e
}
if err = p.Load(bytes); err != nil {
e := fmt.Errorf("Failed to load %s: %v", service, err)
log.Error(e)
return e
}
return nil
}
func LoadSpecialService(p *project.Project, cfg *config.CloudConfig, serviceName, serviceValue string) error {
// Save config in case load fails
previousConfig, ok := p.ServiceConfigs.Get(serviceName)
p.ServiceConfigs.Add(serviceName, &composeConfig.ServiceConfig{})
if err := LoadService(p, cfg, true, serviceValue); err != nil {
// Rollback to previous config
if ok {
p.ServiceConfigs.Add(serviceName, previousConfig)
}
return err
}
return nil
}
func loadConsoleService(cfg *config.CloudConfig, p *project.Project) error {
if cfg.Rancher.Console == "" || cfg.Rancher.Console == "default" {
return nil
}
return LoadSpecialService(p, cfg, "console", cfg.Rancher.Console)
}
func loadEngineService(cfg *config.CloudConfig, p *project.Project) error {
if cfg.Rancher.Docker.Engine == "" || cfg.Rancher.Docker.Engine == cfg.Rancher.Defaults.Docker.Engine {
return nil
}
return LoadSpecialService(p, cfg, "docker", cfg.Rancher.Docker.Engine)
}
func projectReload(p *project.Project, useNetwork *bool, loadConsole bool, environmentLookup *docker.ConfigEnvironment, authLookup *docker.ConfigAuthLookup) func() error {
enabled := map[interface{}]interface{}{}
return func() error {
cfg := config.LoadConfig()
environmentLookup.SetConfig(cfg)
authLookup.SetConfig(cfg)
enabled = addServices(p, enabled, cfg.Rancher.Services)
for service, serviceEnabled := range cfg.Rancher.ServicesInclude {
if _, ok := enabled[service]; ok || !serviceEnabled {
continue
}
if err := LoadService(p, cfg, *useNetwork, service); err != nil {
if err != network.ErrNoNetwork {
log.Errorf("Failed to load service(%s): %v", service, err)
}
continue
}
enabled[service] = service
}
if !*useNetwork {
return nil
}
if loadConsole {
if err := loadConsoleService(cfg, p); err != nil {
log.Errorf("Failed to load rancher.console=(%s): %v", cfg.Rancher.Console, err)
}
}
if err := loadEngineService(cfg, p); err != nil {
log.Errorf("Failed to load rancher.docker.engine=(%s): %v", cfg.Rancher.Docker.Engine, err)
}
return nil
}
}