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|
package main
import (
"encoding/json"
"fmt"
"github.com/edwarnicke/exechelper"
)
const vppConfigTemplate = `unix {
nodaemon
log %[1]s/var/log/vpp/vpp.log
full-coredump
cli-listen %[1]s%[2]s
runtime-dir %[1]s/var/run
gid vpp
}
api-trace {
on
}
api-segment {
gid vpp
}
socksvr {
socket-name %[1]s/var/run/vpp/api.sock
}
statseg {
socket-name %[1]s/var/run/vpp/stats.sock
}
plugins {
plugin unittest_plugin.so { enable }
plugin dpdk_plugin.so { disable }
plugin crypto_aesni_plugin.so { enable }
plugin quic_plugin.so { enable }
}
`
const (
defaultCliSocketFilePath = "/var/run/vpp/cli.sock"
)
type VppInstance struct {
container *Container
config VppConfig
actionFuncName string
}
type VppConfig struct {
Variant string
CliSocketFilePath string
}
func (vc *VppConfig) getTemplate() string {
return fmt.Sprintf(vppConfigTemplate, "%[1]s", vc.CliSocketFilePath)
}
func (vpp *VppInstance) set2VethsServer() {
vpp.actionFuncName = "Configure2Veths"
vpp.config.Variant = "srv"
}
func (vpp *VppInstance) set2VethsClient() {
vpp.actionFuncName = "Configure2Veths"
vpp.config.Variant = "cln"
}
func (vpp *VppInstance) setVppProxy() {
vpp.actionFuncName = "ConfigureVppProxy"
}
func (vpp *VppInstance) setEnvoyProxy() {
vpp.actionFuncName = "ConfigureEnvoyProxy"
}
func (vpp *VppInstance) setCliSocket(filePath string) {
vpp.config.CliSocketFilePath = filePath
}
func (vpp *VppInstance) getCliSocket() string {
return fmt.Sprintf("%s%s", vpp.container.workDir, vpp.config.CliSocketFilePath)
}
func (vpp *VppInstance) start() error {
if vpp.actionFuncName == "" {
return fmt.Errorf("vpp start failed: action function name must not be blank")
}
serializedConfig, err := serializeVppConfig(vpp.config)
if err != nil {
return fmt.Errorf("serialize vpp config: %v", err)
}
args := fmt.Sprintf("%s '%s'", vpp.actionFuncName, serializedConfig)
_, err = vpp.container.execAction(args)
if err != nil {
return fmt.Errorf("vpp start failed: %s", err)
}
return nil
}
func (vpp *VppInstance) vppctl(command string) (string, error) {
cliExecCommand := fmt.Sprintf("docker exec --detach=false %[1]s vppctl -s %[2]s %[3]s",
vpp.container.name, vpp.getCliSocket(), command)
output, err := exechelper.CombinedOutput(cliExecCommand)
if err != nil {
return "", fmt.Errorf("vppctl failed: %s", err)
}
return string(output), nil
}
func NewVppInstance(c *Container) *VppInstance {
var vppConfig VppConfig
vppConfig.CliSocketFilePath = defaultCliSocketFilePath
vpp := new(VppInstance)
vpp.container = c
vpp.config = vppConfig
return vpp
}
func serializeVppConfig(vppConfig VppConfig) (string, error) {
serializedConfig, err := json.Marshal(vppConfig)
if err != nil {
return "", fmt.Errorf("vpp start failed: serializing configuration failed: %s", err)
}
return string(serializedConfig), nil
}
func deserializeVppConfig(input string) (VppConfig, error) {
var vppConfig VppConfig
err := json.Unmarshal([]byte(input), &vppConfig)
if err != nil {
// Since input is not a valid JSON it is going be used as a variant value
// for compatibility reasons
vppConfig.Variant = input
vppConfig.CliSocketFilePath = defaultCliSocketFilePath
}
return vppConfig, nil
}
|
