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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package vespa
import (
"encoding/json"
"fmt"
"net"
"net/http"
"net/url"
"sort"
"strconv"
"time"
"github.com/vespa-engine/vespa/client/go/internal/util"
"github.com/vespa-engine/vespa/client/go/internal/version"
)
type customTarget struct {
targetType string
baseURL string
httpClient util.HTTPClient
tlsOptions TLSOptions
retryInterval time.Duration
}
type serviceStatus struct {
Converged bool `json:"converged"`
CurrentGeneration int64 `json:"currentGeneration"`
Services []serviceInfo `json:"services"`
}
type serviceInfo struct {
ClusterName string `json:"clusterName"`
Type string `json:"type"`
Port int `json:"port"`
}
// LocalTarget creates a target for a Vespa platform running locally.
func LocalTarget(httpClient util.HTTPClient, tlsOptions TLSOptions, retryInterval time.Duration) Target {
return &customTarget{
targetType: TargetLocal,
baseURL: "http://127.0.0.1",
httpClient: httpClient,
tlsOptions: tlsOptions,
retryInterval: retryInterval,
}
}
// CustomTarget creates a Target for a Vespa platform running at baseURL.
func CustomTarget(httpClient util.HTTPClient, baseURL string, tlsOptions TLSOptions, retryInterval time.Duration) Target {
return &customTarget{
targetType: TargetCustom,
baseURL: baseURL,
httpClient: httpClient,
tlsOptions: tlsOptions,
retryInterval: retryInterval,
}
}
func (t *customTarget) Type() string { return t.targetType }
func (t *customTarget) IsCloud() bool { return false }
func (t *customTarget) Deployment() Deployment { return DefaultDeployment }
func (t *customTarget) PrintLog(options LogOptions) error {
return fmt.Errorf("log access is only supported on cloud: run vespa-logfmt on the admin node instead, or export from a container image (here named 'vespa') using docker exec vespa vespa-logfmt")
}
func (t *customTarget) CheckVersion(version version.Version) error { return nil }
func (t *customTarget) newService(url, name string, deployAPI bool) *Service {
return &Service{
BaseURL: url,
Name: name,
deployAPI: deployAPI,
httpClient: t.httpClient,
TLSOptions: t.tlsOptions,
retryInterval: t.retryInterval,
}
}
func (t *customTarget) DeployService() (*Service, error) {
if t.targetType == TargetCustom {
return t.newService(t.baseURL, "", true), nil
}
u, err := t.urlWithPort(19071)
if err != nil {
return nil, err
}
return t.newService(u.String(), "", true), nil
}
func (t *customTarget) ContainerServices(timeout time.Duration) ([]*Service, error) {
if t.targetType == TargetCustom {
return []*Service{t.newService(t.baseURL, "", false)}, nil
}
status, err := t.serviceStatus(AnyDeployment, timeout)
if err != nil {
return nil, err
}
portsByCluster := make(map[string]int)
for _, serviceInfo := range status.Services {
if serviceInfo.Type != "container" {
continue
}
clusterName := serviceInfo.ClusterName
if clusterName == "" { // Vespa version older than 8.206.1, which does not include cluster name in the API
clusterName = serviceInfo.Type + strconv.Itoa(serviceInfo.Port)
}
portsByCluster[clusterName] = serviceInfo.Port
}
var services []*Service
for cluster, port := range portsByCluster {
url, err := t.urlWithPort(port)
if err != nil {
return nil, err
}
service := t.newService(url.String(), cluster, false)
services = append(services, service)
}
sort.Slice(services, func(i, j int) bool { return services[i].Name < services[j].Name })
return services, nil
}
func (t *customTarget) AwaitDeployment(generation int64, timeout time.Duration) (int64, error) {
status, err := t.serviceStatus(generation, timeout)
if err != nil {
return 0, err
}
return status.CurrentGeneration, nil
}
func (t *customTarget) urlWithPort(port int) (*url.URL, error) {
u, err := url.Parse(t.baseURL)
if err != nil {
return nil, err
}
if _, _, err := net.SplitHostPort(u.Host); err == nil {
return nil, fmt.Errorf("url %s already contains port", u)
}
u.Host = net.JoinHostPort(u.Host, strconv.Itoa(port))
return u, nil
}
func (t *customTarget) serviceStatus(wantedGeneration int64, timeout time.Duration) (serviceStatus, error) {
deployService, err := t.DeployService()
if err != nil {
return serviceStatus{}, err
}
url := fmt.Sprintf("%s/application/v2/tenant/default/application/default/environment/prod/region/default/instance/default/serviceconverge", deployService.BaseURL)
req, err := http.NewRequest("GET", url, nil)
if err != nil {
return serviceStatus{}, err
}
var status serviceStatus
converged := false
convergedFunc := func(httpStatus int, response []byte) (bool, error) {
if ok, err := isOK(httpStatus); !ok {
return ok, err
}
if err := json.Unmarshal(response, &status); err != nil {
return false, err
}
converged = wantedGeneration == AnyDeployment ||
(wantedGeneration == LatestDeployment && status.Converged) ||
status.CurrentGeneration == wantedGeneration
return converged, nil
}
if _, err := wait(deployService, convergedFunc, func() *http.Request { return req }, timeout, t.retryInterval); err != nil {
return serviceStatus{}, fmt.Errorf("deployment not converged%s%s: %w", generationDescription(wantedGeneration), waitDescription(timeout), err)
}
if !converged {
return serviceStatus{}, fmt.Errorf("deployment not converged%s%s", generationDescription(wantedGeneration), waitDescription(timeout))
}
return status, nil
}
func generationDescription(generation int64) string {
switch generation {
case AnyDeployment:
return ""
case LatestDeployment:
return " on latest generation"
default:
return fmt.Sprintf(" on generation %d", generation)
}
}
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