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package types
import (
"context"
"fmt"
"os"
"regexp"
"strings"
"github.com/ansible/receptor/pkg/controlsvc"
"github.com/ansible/receptor/pkg/netceptor"
"github.com/ansible/receptor/pkg/workceptor"
)
type NodeCfg struct {
ID string `description:"Node ID. Defaults to the local hostname." barevalue:"yes"`
DataDir string `description:"Directory in which to store node data." default:"/tmp/receptor"`
FirewallRules []netceptor.FirewallRuleData `description:"Firewall rules, see documentation for syntax."`
MaxIdleConnectionTimeout string `description:"Maximum duration with no traffic before a backend connection is timed out and refreshed."`
ReceptorKubeSupportReconnect string
ReceptorKubeClientsetQPS string
ReceptorKubeClientsetBurst string
ReceptorKubeClientsetRateLimiter string
}
func (cfg NodeCfg) Init() error {
var err error
if cfg.ID == "" {
host, err := os.Hostname()
if err != nil {
return err
}
lchost := strings.ToLower(host)
if lchost == "localhost" || strings.HasPrefix(lchost, "localhost.") {
return fmt.Errorf("no node ID specified and local host name is localhost")
}
cfg.ID = host
} else {
submitIDRegex := regexp.MustCompile(`^[.\-_@:a-zA-Z0-9]*$`)
match := submitIDRegex.FindSubmatch([]byte(cfg.ID))
if match == nil {
return fmt.Errorf("node id can only contain a-z, A-Z, 0-9 or special characters . - _ @ : but received: %s", cfg.ID)
}
}
if strings.ToLower(cfg.ID) == "localhost" {
return fmt.Errorf("node ID \"localhost\" is reserved")
}
netceptor.MainInstance = netceptor.New(context.Background(), cfg.ID)
if len(cfg.FirewallRules) > 0 {
rules, err := netceptor.ParseFirewallRules(cfg.FirewallRules)
if err != nil {
return err
}
err = netceptor.MainInstance.AddFirewallRules(rules, true)
if err != nil {
return err
}
}
// update netceptor.MainInstance with the MaxIdleConnectionTimeout from the nodeCfg struct
// this is a fall-forward mechanism. If the user didn't provide a value for MaxIdleConnectionTimeout in their configuration file,
// we will apply the default timeout of 30s to netceptor.maxConnectionIdleTime
if cfg.MaxIdleConnectionTimeout != "" {
err = netceptor.MainInstance.SetMaxConnectionIdleTime(cfg.MaxIdleConnectionTimeout)
if err != nil {
return err
}
}
workceptor.MainInstance, err = workceptor.New(context.Background(), netceptor.MainInstance, cfg.DataDir)
if err != nil {
return err
}
controlsvc.MainInstance = controlsvc.New(true, netceptor.MainInstance)
err = workceptor.MainInstance.RegisterWithControlService(controlsvc.MainInstance)
if err != nil {
return err
}
return nil
}
func (cfg NodeCfg) Run() error {
workceptor.MainInstance.ListKnownUnitIDs() // Triggers a scan of unit dirs and restarts any that need it
return nil
}
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