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haproxy.go
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/
haproxy.go
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package main
import (
"strconv"
client_native "github.com/haproxytech/client-native/v2"
"github.com/haproxytech/client-native/v2/configuration"
runtime_api "github.com/haproxytech/client-native/v2/runtime"
models "github.com/haproxytech/models/v2"
)
type Relay struct {
Backend *models.Backend
Server *models.Server
Frontend *models.Frontend
Bind *models.Bind
}
func (d *Driver) ConfigureHAProxy() error {
hapcc := &configuration.Client{}
confParams := configuration.ClientParams{
ConfigurationFile: "/etc/haproxy/haproxy.cfg",
Haproxy: "/usr/sbin/haproxy",
UseValidation: true,
PersistentTransactions: true,
TransactionDir: "/tmp/haproxy/transactions",
}
err := hapcc.Init(confParams)
if err != nil {
logerr("Error setting up default configuration client, exiting...", err.Error())
}
haprtc := &runtime_api.Client{}
version, globalConf, err := hapcc.GetGlobalConfiguration("")
logerr("GetGlobalConfiguration:", "version", strconv.FormatInt(version, 10))
if err == nil {
socketList := map[int]string{}
runtimeAPIs := globalConf.RuntimeAPIs
if len(runtimeAPIs) != 0 {
for i, r := range runtimeAPIs {
socketList[i] = *r.Address
}
if err := haprtc.InitWithSockets(socketList); err != nil {
logerr("Error setting up runtime client, not using one")
return nil
}
} else {
logerr("Runtime API not configured, not using it")
haprtc = nil
}
} else {
logerr("Cannot read runtime API configuration, not using it")
haprtc = nil
}
d.HAProxy = &client_native.HAProxyClient{}
err = d.HAProxy.Init(hapcc, haprtc)
return err
}
func (d *Driver) InitializeRelay(relay *Relay) error {
config := d.HAProxy.GetConfiguration()
_, _, err := config.GetBackend(relay.Backend.Name, "")
if err != nil {
logerr(err.Error())
version, _ := config.GetVersion("")
err = config.CreateBackend(relay.Backend, "", version)
if err != nil {
return err
}
logerr("created backend", relay.Backend.Name)
}
_, _, err = config.GetServer(relay.Server.Name, relay.Backend.Name, "")
if err != nil {
logerr(err.Error())
version, _ := config.GetVersion("")
err = config.CreateServer(relay.Backend.Name, relay.Server, "", version)
if err != nil {
return err
}
logerr("created server", relay.Server.Name)
}
_, _, err = config.GetFrontend(relay.Frontend.Name, "")
if err != nil {
logerr(err.Error())
version, _ := config.GetVersion("")
err = config.CreateFrontend(relay.Frontend, "", version)
if err != nil {
return err
}
logerr("created frontend", relay.Frontend.Name)
}
_, _, err = config.GetBind(relay.Bind.Name, relay.Frontend.Name, "")
if err != nil {
logerr(err.Error())
version, _ := config.GetVersion("")
err = config.CreateBind(relay.Frontend.Name, relay.Bind, "", version)
if err != nil {
return err
}
logerr("created bind", relay.Bind.Name)
}
return nil
}