/
load_balancer.go
1062 lines (930 loc) · 34.6 KB
/
load_balancer.go
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package hcloud
import (
"bytes"
"context"
"encoding/json"
"fmt"
"net"
"net/http"
"net/url"
"strconv"
"time"
"github.com/hetznercloud/hcloud-go/hcloud/schema"
)
// LoadBalancer represents a Load Balancer in the Hetzner Cloud.
type LoadBalancer struct {
ID int
Name string
PublicNet LoadBalancerPublicNet
PrivateNet []LoadBalancerPrivateNet
Location *Location
LoadBalancerType *LoadBalancerType
Algorithm LoadBalancerAlgorithm
Services []LoadBalancerService
Targets []LoadBalancerTarget
Protection LoadBalancerProtection
Labels map[string]string
Created time.Time
IncludedTraffic uint64
OutgoingTraffic uint64
IngoingTraffic uint64
}
// LoadBalancerPublicNet represents a Load Balancer's public network.
type LoadBalancerPublicNet struct {
Enabled bool
IPv4 LoadBalancerPublicNetIPv4
IPv6 LoadBalancerPublicNetIPv6
}
// LoadBalancerPublicNetIPv4 represents a Load Balancer's public IPv4 address.
type LoadBalancerPublicNetIPv4 struct {
IP net.IP
DNSPtr string
}
// LoadBalancerPublicNetIPv6 represents a Load Balancer's public IPv6 address.
type LoadBalancerPublicNetIPv6 struct {
IP net.IP
DNSPtr string
}
// LoadBalancerPrivateNet represents a Load Balancer's private network.
type LoadBalancerPrivateNet struct {
Network *Network
IP net.IP
}
// LoadBalancerService represents a Load Balancer service.
type LoadBalancerService struct {
Protocol LoadBalancerServiceProtocol
ListenPort int
DestinationPort int
Proxyprotocol bool
HTTP LoadBalancerServiceHTTP
HealthCheck LoadBalancerServiceHealthCheck
}
// LoadBalancerServiceHTTP stores configuration for a service using the HTTP protocol.
type LoadBalancerServiceHTTP struct {
CookieName string
CookieLifetime time.Duration
Certificates []*Certificate
RedirectHTTP bool
StickySessions bool
}
// LoadBalancerServiceHealthCheck stores configuration for a service health check.
type LoadBalancerServiceHealthCheck struct {
Protocol LoadBalancerServiceProtocol
Port int
Interval time.Duration
Timeout time.Duration
Retries int
HTTP *LoadBalancerServiceHealthCheckHTTP
}
// LoadBalancerServiceHealthCheckHTTP stores configuration for a service health check
// using the HTTP protocol.
type LoadBalancerServiceHealthCheckHTTP struct {
Domain string
Path string
Response string
StatusCodes []string
TLS bool
}
// LoadBalancerAlgorithmType specifies the algorithm type a Load Balancer
// uses for distributing requests.
type LoadBalancerAlgorithmType string
const (
// LoadBalancerAlgorithmTypeRoundRobin is an algorithm which distributes
// requests to targets in a round-robin fashion.
LoadBalancerAlgorithmTypeRoundRobin LoadBalancerAlgorithmType = "round_robin"
// LoadBalancerAlgorithmTypeLeastConnections is an algorithm which distributes
// requests to targets with the least number of connections.
LoadBalancerAlgorithmTypeLeastConnections LoadBalancerAlgorithmType = "least_connections"
)
// LoadBalancerAlgorithm configures the algorithm a Load Balancer uses
// for distributing requests.
type LoadBalancerAlgorithm struct {
Type LoadBalancerAlgorithmType
}
// LoadBalancerTargetType specifies the type of Load Balancer target.
type LoadBalancerTargetType string
const (
// LoadBalancerTargetTypeServer is a target type which points to a specific
// server.
LoadBalancerTargetTypeServer LoadBalancerTargetType = "server"
// LoadBalancerTargetTypeLabelSelector is a target type which selects the
// servers a Load Balancer points to using labels assigned to the servers.
LoadBalancerTargetTypeLabelSelector LoadBalancerTargetType = "label_selector"
// LoadBalancerTargetTypeIP is a target type which points to an IP.
LoadBalancerTargetTypeIP LoadBalancerTargetType = "ip"
)
// LoadBalancerServiceProtocol specifies the protocol of a Load Balancer service.
type LoadBalancerServiceProtocol string
const (
// LoadBalancerServiceProtocolTCP specifies a TCP service.
LoadBalancerServiceProtocolTCP LoadBalancerServiceProtocol = "tcp"
// LoadBalancerServiceProtocolHTTP specifies an HTTP service.
LoadBalancerServiceProtocolHTTP LoadBalancerServiceProtocol = "http"
// LoadBalancerServiceProtocolHTTPS specifies an HTTPS service.
LoadBalancerServiceProtocolHTTPS LoadBalancerServiceProtocol = "https"
)
// LoadBalancerTarget represents a Load Balancer target.
type LoadBalancerTarget struct {
Type LoadBalancerTargetType
Server *LoadBalancerTargetServer
LabelSelector *LoadBalancerTargetLabelSelector
IP *LoadBalancerTargetIP
HealthStatus []LoadBalancerTargetHealthStatus
Targets []LoadBalancerTarget
UsePrivateIP bool
}
// LoadBalancerTargetServer configures a Load Balancer target
// pointing at a specific server.
type LoadBalancerTargetServer struct {
Server *Server
}
// LoadBalancerTargetLabelSelector configures a Load Balancer target pointing
// at the servers matching the selector. This includes the target pointing at
// nothing, if no servers match the Selector.
type LoadBalancerTargetLabelSelector struct {
Selector string
}
// LoadBalancerTargetIP configures a Load Balancer target pointing to a Hetzner
// Online IP address.
type LoadBalancerTargetIP struct {
IP string
}
// LoadBalancerTargetHealthStatusStatus describes a target's health status.
type LoadBalancerTargetHealthStatusStatus string
const (
// LoadBalancerTargetHealthStatusStatusUnknown denotes that the health status is unknown.
LoadBalancerTargetHealthStatusStatusUnknown LoadBalancerTargetHealthStatusStatus = "unknown"
// LoadBalancerTargetHealthStatusStatusHealthy denotes a healthy target.
LoadBalancerTargetHealthStatusStatusHealthy LoadBalancerTargetHealthStatusStatus = "healthy"
// LoadBalancerTargetHealthStatusStatusUnhealthy denotes an unhealthy target.
LoadBalancerTargetHealthStatusStatusUnhealthy LoadBalancerTargetHealthStatusStatus = "unhealthy"
)
// LoadBalancerTargetHealthStatus describes a target's health for a specific service.
type LoadBalancerTargetHealthStatus struct {
ListenPort int
Status LoadBalancerTargetHealthStatusStatus
}
// LoadBalancerProtection represents the protection level of a Load Balancer.
type LoadBalancerProtection struct {
Delete bool
}
// changeDNSPtr changes or resets the reverse DNS pointer for an IP address.
// Pass a nil ptr to reset the reverse DNS pointer to its default value.
func (lb *LoadBalancer) changeDNSPtr(ctx context.Context, client *Client, ip net.IP, ptr *string) (*Action, *Response, error) {
reqBody := schema.LoadBalancerActionChangeDNSPtrRequest{
IP: ip.String(),
DNSPtr: ptr,
}
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/load_balancers/%d/actions/change_dns_ptr", lb.ID)
req, err := client.NewRequest(ctx, "POST", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
respBody := schema.LoadBalancerActionChangeDNSPtrResponse{}
resp, err := client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, nil
}
// GetDNSPtrForIP searches for the dns assigned to the given IP address.
// It returns an error if there is no dns set for the given IP address.
func (lb *LoadBalancer) GetDNSPtrForIP(ip net.IP) (string, error) {
if net.IP.Equal(lb.PublicNet.IPv4.IP, ip) {
return lb.PublicNet.IPv4.DNSPtr, nil
} else if net.IP.Equal(lb.PublicNet.IPv6.IP, ip) {
return lb.PublicNet.IPv6.DNSPtr, nil
}
return "", DNSNotFoundError{ip}
}
// LoadBalancerClient is a client for the Load Balancers API.
type LoadBalancerClient struct {
client *Client
Action *ResourceActionClient
}
// GetByID retrieves a Load Balancer by its ID. If the Load Balancer does not exist, nil is returned.
func (c *LoadBalancerClient) GetByID(ctx context.Context, id int) (*LoadBalancer, *Response, error) {
req, err := c.client.NewRequest(ctx, "GET", fmt.Sprintf("/load_balancers/%d", id), nil)
if err != nil {
return nil, nil, err
}
var body schema.LoadBalancerGetResponse
resp, err := c.client.Do(req, &body)
if err != nil {
if IsError(err, ErrorCodeNotFound) {
return nil, resp, nil
}
return nil, nil, err
}
return LoadBalancerFromSchema(body.LoadBalancer), resp, nil
}
// GetByName retrieves a Load Balancer by its name. If the Load Balancer does not exist, nil is returned.
func (c *LoadBalancerClient) GetByName(ctx context.Context, name string) (*LoadBalancer, *Response, error) {
if name == "" {
return nil, nil, nil
}
LoadBalancer, response, err := c.List(ctx, LoadBalancerListOpts{Name: name})
if len(LoadBalancer) == 0 {
return nil, response, err
}
return LoadBalancer[0], response, err
}
// Get retrieves a Load Balancer by its ID if the input can be parsed as an integer, otherwise it
// retrieves a Load Balancer by its name. If the Load Balancer does not exist, nil is returned.
func (c *LoadBalancerClient) Get(ctx context.Context, idOrName string) (*LoadBalancer, *Response, error) {
if id, err := strconv.Atoi(idOrName); err == nil {
return c.GetByID(ctx, id)
}
return c.GetByName(ctx, idOrName)
}
// LoadBalancerListOpts specifies options for listing Load Balancers.
type LoadBalancerListOpts struct {
ListOpts
Name string
Sort []string
}
func (l LoadBalancerListOpts) values() url.Values {
vals := l.ListOpts.Values()
if l.Name != "" {
vals.Add("name", l.Name)
}
for _, sort := range l.Sort {
vals.Add("sort", sort)
}
return vals
}
// List returns a list of Load Balancers for a specific page.
//
// Please note that filters specified in opts are not taken into account
// when their value corresponds to their zero value or when they are empty.
func (c *LoadBalancerClient) List(ctx context.Context, opts LoadBalancerListOpts) ([]*LoadBalancer, *Response, error) {
path := "/load_balancers?" + opts.values().Encode()
req, err := c.client.NewRequest(ctx, "GET", path, nil)
if err != nil {
return nil, nil, err
}
var body schema.LoadBalancerListResponse
resp, err := c.client.Do(req, &body)
if err != nil {
return nil, nil, err
}
LoadBalancers := make([]*LoadBalancer, 0, len(body.LoadBalancers))
for _, s := range body.LoadBalancers {
LoadBalancers = append(LoadBalancers, LoadBalancerFromSchema(s))
}
return LoadBalancers, resp, nil
}
// All returns all Load Balancers.
func (c *LoadBalancerClient) All(ctx context.Context) ([]*LoadBalancer, error) {
return c.AllWithOpts(ctx, LoadBalancerListOpts{ListOpts: ListOpts{PerPage: 50}})
}
// AllWithOpts returns all Load Balancers for the given options.
func (c *LoadBalancerClient) AllWithOpts(ctx context.Context, opts LoadBalancerListOpts) ([]*LoadBalancer, error) {
allLoadBalancers := []*LoadBalancer{}
err := c.client.all(func(page int) (*Response, error) {
opts.Page = page
LoadBalancers, resp, err := c.List(ctx, opts)
if err != nil {
return resp, err
}
allLoadBalancers = append(allLoadBalancers, LoadBalancers...)
return resp, nil
})
if err != nil {
return nil, err
}
return allLoadBalancers, nil
}
// LoadBalancerUpdateOpts specifies options for updating a Load Balancer.
type LoadBalancerUpdateOpts struct {
Name string
Labels map[string]string
}
// Update updates a Load Balancer.
func (c *LoadBalancerClient) Update(ctx context.Context, loadBalancer *LoadBalancer, opts LoadBalancerUpdateOpts) (*LoadBalancer, *Response, error) {
reqBody := schema.LoadBalancerUpdateRequest{}
if opts.Name != "" {
reqBody.Name = &opts.Name
}
if opts.Labels != nil {
reqBody.Labels = &opts.Labels
}
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/load_balancers/%d", loadBalancer.ID)
req, err := c.client.NewRequest(ctx, "PUT", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
respBody := schema.LoadBalancerUpdateResponse{}
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return LoadBalancerFromSchema(respBody.LoadBalancer), resp, nil
}
// LoadBalancerCreateOpts specifies options for creating a new Load Balancer.
type LoadBalancerCreateOpts struct {
Name string
LoadBalancerType *LoadBalancerType
Algorithm *LoadBalancerAlgorithm
Location *Location
NetworkZone NetworkZone
Labels map[string]string
Targets []LoadBalancerCreateOptsTarget
Services []LoadBalancerCreateOptsService
PublicInterface *bool
Network *Network
}
// LoadBalancerCreateOptsTarget holds options for specifying a target
// when creating a new Load Balancer.
type LoadBalancerCreateOptsTarget struct {
Type LoadBalancerTargetType
Server LoadBalancerCreateOptsTargetServer
LabelSelector LoadBalancerCreateOptsTargetLabelSelector
IP LoadBalancerCreateOptsTargetIP
UsePrivateIP *bool
}
// LoadBalancerCreateOptsTargetServer holds options for specifying a server target
// when creating a new Load Balancer.
type LoadBalancerCreateOptsTargetServer struct {
Server *Server
}
// LoadBalancerCreateOptsTargetLabelSelector holds options for specifying a label selector target
// when creating a new Load Balancer.
type LoadBalancerCreateOptsTargetLabelSelector struct {
Selector string
}
// LoadBalancerCreateOptsTargetIP holds options for specifying an IP target
// when creating a new Load Balancer.
type LoadBalancerCreateOptsTargetIP struct {
IP string
}
// LoadBalancerCreateOptsService holds options for specifying a service
// when creating a new Load Balancer.
type LoadBalancerCreateOptsService struct {
Protocol LoadBalancerServiceProtocol
ListenPort *int
DestinationPort *int
Proxyprotocol *bool
HTTP *LoadBalancerCreateOptsServiceHTTP
HealthCheck *LoadBalancerCreateOptsServiceHealthCheck
}
// LoadBalancerCreateOptsServiceHTTP holds options for specifying an HTTP service
// when creating a new Load Balancer.
type LoadBalancerCreateOptsServiceHTTP struct {
CookieName *string
CookieLifetime *time.Duration
Certificates []*Certificate
RedirectHTTP *bool
StickySessions *bool
}
// LoadBalancerCreateOptsServiceHealthCheck holds options for specifying a service
// health check when creating a new Load Balancer.
type LoadBalancerCreateOptsServiceHealthCheck struct {
Protocol LoadBalancerServiceProtocol
Port *int
Interval *time.Duration
Timeout *time.Duration
Retries *int
HTTP *LoadBalancerCreateOptsServiceHealthCheckHTTP
}
// LoadBalancerCreateOptsServiceHealthCheckHTTP holds options for specifying a service
// HTTP health check when creating a new Load Balancer.
type LoadBalancerCreateOptsServiceHealthCheckHTTP struct {
Domain *string
Path *string
Response *string
StatusCodes []string
TLS *bool
}
// LoadBalancerCreateResult is the result of a create Load Balancer call.
type LoadBalancerCreateResult struct {
LoadBalancer *LoadBalancer
Action *Action
}
// Create creates a new Load Balancer.
func (c *LoadBalancerClient) Create(ctx context.Context, opts LoadBalancerCreateOpts) (LoadBalancerCreateResult, *Response, error) {
reqBody := loadBalancerCreateOptsToSchema(opts)
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return LoadBalancerCreateResult{}, nil, err
}
req, err := c.client.NewRequest(ctx, "POST", "/load_balancers", bytes.NewReader(reqBodyData))
if err != nil {
return LoadBalancerCreateResult{}, nil, err
}
respBody := schema.LoadBalancerCreateResponse{}
resp, err := c.client.Do(req, &respBody)
if err != nil {
return LoadBalancerCreateResult{}, resp, err
}
return LoadBalancerCreateResult{
LoadBalancer: LoadBalancerFromSchema(respBody.LoadBalancer),
Action: ActionFromSchema(respBody.Action),
}, resp, nil
}
// Delete deletes a Load Balancer.
func (c *LoadBalancerClient) Delete(ctx context.Context, loadBalancer *LoadBalancer) (*Response, error) {
req, err := c.client.NewRequest(ctx, "DELETE", fmt.Sprintf("/load_balancers/%d", loadBalancer.ID), nil)
if err != nil {
return nil, err
}
return c.client.Do(req, nil)
}
func (c *LoadBalancerClient) addTarget(ctx context.Context, loadBalancer *LoadBalancer, reqBody schema.LoadBalancerActionAddTargetRequest) (*Action, *Response, error) {
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/load_balancers/%d/actions/add_target", loadBalancer.ID)
req, err := c.client.NewRequest(ctx, "POST", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
var respBody schema.LoadBalancerActionAddTargetResponse
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, nil
}
func (c *LoadBalancerClient) removeTarget(ctx context.Context, loadBalancer *LoadBalancer, reqBody schema.LoadBalancerActionRemoveTargetRequest) (*Action, *Response, error) {
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/load_balancers/%d/actions/remove_target", loadBalancer.ID)
req, err := c.client.NewRequest(ctx, "POST", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
var respBody schema.LoadBalancerActionRemoveTargetResponse
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, nil
}
// LoadBalancerAddServerTargetOpts specifies options for adding a server target
// to a Load Balancer.
type LoadBalancerAddServerTargetOpts struct {
Server *Server
UsePrivateIP *bool
}
// AddServerTarget adds a server target to a Load Balancer.
func (c *LoadBalancerClient) AddServerTarget(ctx context.Context, loadBalancer *LoadBalancer, opts LoadBalancerAddServerTargetOpts) (*Action, *Response, error) {
reqBody := schema.LoadBalancerActionAddTargetRequest{
Type: string(LoadBalancerTargetTypeServer),
Server: &schema.LoadBalancerActionAddTargetRequestServer{
ID: opts.Server.ID,
},
UsePrivateIP: opts.UsePrivateIP,
}
return c.addTarget(ctx, loadBalancer, reqBody)
}
// RemoveServerTarget removes a server target from a Load Balancer.
func (c *LoadBalancerClient) RemoveServerTarget(ctx context.Context, loadBalancer *LoadBalancer, server *Server) (*Action, *Response, error) {
reqBody := schema.LoadBalancerActionRemoveTargetRequest{
Type: string(LoadBalancerTargetTypeServer),
Server: &schema.LoadBalancerActionRemoveTargetRequestServer{
ID: server.ID,
},
}
return c.removeTarget(ctx, loadBalancer, reqBody)
}
// LoadBalancerAddLabelSelectorTargetOpts specifies options for adding a label selector target
// to a Load Balancer.
type LoadBalancerAddLabelSelectorTargetOpts struct {
Selector string
UsePrivateIP *bool
}
// AddLabelSelectorTarget adds a label selector target to a Load Balancer.
func (c *LoadBalancerClient) AddLabelSelectorTarget(ctx context.Context, loadBalancer *LoadBalancer, opts LoadBalancerAddLabelSelectorTargetOpts) (*Action, *Response, error) {
reqBody := schema.LoadBalancerActionAddTargetRequest{
Type: string(LoadBalancerTargetTypeLabelSelector),
LabelSelector: &schema.LoadBalancerActionAddTargetRequestLabelSelector{
Selector: opts.Selector,
},
UsePrivateIP: opts.UsePrivateIP,
}
return c.addTarget(ctx, loadBalancer, reqBody)
}
// RemoveLabelSelectorTarget removes a label selector target from a Load Balancer.
func (c *LoadBalancerClient) RemoveLabelSelectorTarget(ctx context.Context, loadBalancer *LoadBalancer, labelSelector string) (*Action, *Response, error) {
reqBody := schema.LoadBalancerActionRemoveTargetRequest{
Type: string(LoadBalancerTargetTypeLabelSelector),
LabelSelector: &schema.LoadBalancerActionRemoveTargetRequestLabelSelector{
Selector: labelSelector,
},
}
return c.removeTarget(ctx, loadBalancer, reqBody)
}
// LoadBalancerAddIPTargetOpts specifies options for adding an IP target to a
// Load Balancer.
type LoadBalancerAddIPTargetOpts struct {
IP net.IP
}
// AddIPTarget adds an IP target to a Load Balancer.
func (c *LoadBalancerClient) AddIPTarget(ctx context.Context, loadBalancer *LoadBalancer, opts LoadBalancerAddIPTargetOpts) (*Action, *Response, error) {
reqBody := schema.LoadBalancerActionAddTargetRequest{
Type: string(LoadBalancerTargetTypeIP),
IP: &schema.LoadBalancerActionAddTargetRequestIP{IP: opts.IP.String()},
}
return c.addTarget(ctx, loadBalancer, reqBody)
}
// RemoveIPTarget removes an IP target from a Load Balancer.
func (c *LoadBalancerClient) RemoveIPTarget(ctx context.Context, loadBalancer *LoadBalancer, ip net.IP) (*Action, *Response, error) {
reqBody := schema.LoadBalancerActionRemoveTargetRequest{
Type: string(LoadBalancerTargetTypeIP),
IP: &schema.LoadBalancerActionRemoveTargetRequestIP{
IP: ip.String(),
},
}
return c.removeTarget(ctx, loadBalancer, reqBody)
}
// LoadBalancerAddServiceOpts specifies options for adding a service to a Load Balancer.
type LoadBalancerAddServiceOpts struct {
Protocol LoadBalancerServiceProtocol
ListenPort *int
DestinationPort *int
Proxyprotocol *bool
HTTP *LoadBalancerAddServiceOptsHTTP
HealthCheck *LoadBalancerAddServiceOptsHealthCheck
}
// LoadBalancerAddServiceOptsHTTP holds options for specifying an HTTP service
// when adding a service to a Load Balancer.
type LoadBalancerAddServiceOptsHTTP struct {
CookieName *string
CookieLifetime *time.Duration
Certificates []*Certificate
RedirectHTTP *bool
StickySessions *bool
}
// LoadBalancerAddServiceOptsHealthCheck holds options for specifying a health check
// when adding a service to a Load Balancer.
type LoadBalancerAddServiceOptsHealthCheck struct {
Protocol LoadBalancerServiceProtocol
Port *int
Interval *time.Duration
Timeout *time.Duration
Retries *int
HTTP *LoadBalancerAddServiceOptsHealthCheckHTTP
}
// LoadBalancerAddServiceOptsHealthCheckHTTP holds options for specifying an
// HTTP health check when adding a service to a Load Balancer.
type LoadBalancerAddServiceOptsHealthCheckHTTP struct {
Domain *string
Path *string
Response *string
StatusCodes []string
TLS *bool
}
// AddService adds a service to a Load Balancer.
func (c *LoadBalancerClient) AddService(ctx context.Context, loadBalancer *LoadBalancer, opts LoadBalancerAddServiceOpts) (*Action, *Response, error) {
reqBody := loadBalancerAddServiceOptsToSchema(opts)
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/load_balancers/%d/actions/add_service", loadBalancer.ID)
req, err := c.client.NewRequest(ctx, "POST", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
var respBody schema.LoadBalancerActionAddServiceResponse
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, nil
}
// LoadBalancerUpdateServiceOpts specifies options for updating a service.
type LoadBalancerUpdateServiceOpts struct {
Protocol LoadBalancerServiceProtocol
DestinationPort *int
Proxyprotocol *bool
HTTP *LoadBalancerUpdateServiceOptsHTTP
HealthCheck *LoadBalancerUpdateServiceOptsHealthCheck
}
// LoadBalancerUpdateServiceOptsHTTP specifies options for updating an HTTP(S) service.
type LoadBalancerUpdateServiceOptsHTTP struct {
CookieName *string
CookieLifetime *time.Duration
Certificates []*Certificate
RedirectHTTP *bool
StickySessions *bool
}
// LoadBalancerUpdateServiceOptsHealthCheck specifies options for updating
// a service's health check.
type LoadBalancerUpdateServiceOptsHealthCheck struct {
Protocol LoadBalancerServiceProtocol
Port *int
Interval *time.Duration
Timeout *time.Duration
Retries *int
HTTP *LoadBalancerUpdateServiceOptsHealthCheckHTTP
}
// LoadBalancerUpdateServiceOptsHealthCheckHTTP specifies options for updating
// the HTTP-specific settings of a service's health check.
type LoadBalancerUpdateServiceOptsHealthCheckHTTP struct {
Domain *string
Path *string
Response *string
StatusCodes []string
TLS *bool
}
// UpdateService updates a Load Balancer service.
func (c *LoadBalancerClient) UpdateService(ctx context.Context, loadBalancer *LoadBalancer, listenPort int, opts LoadBalancerUpdateServiceOpts) (*Action, *Response, error) {
reqBody := loadBalancerUpdateServiceOptsToSchema(opts)
reqBody.ListenPort = listenPort
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/load_balancers/%d/actions/update_service", loadBalancer.ID)
req, err := c.client.NewRequest(ctx, "POST", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
var respBody schema.LoadBalancerActionUpdateServiceResponse
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, nil
}
// DeleteService deletes a Load Balancer service.
func (c *LoadBalancerClient) DeleteService(ctx context.Context, loadBalancer *LoadBalancer, listenPort int) (*Action, *Response, error) {
reqBody := schema.LoadBalancerDeleteServiceRequest{
ListenPort: listenPort,
}
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/load_balancers/%d/actions/delete_service", loadBalancer.ID)
req, err := c.client.NewRequest(ctx, "POST", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
var respBody schema.LoadBalancerDeleteServiceResponse
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, nil
}
// LoadBalancerChangeProtectionOpts specifies options for changing the resource protection level of a Load Balancer.
type LoadBalancerChangeProtectionOpts struct {
Delete *bool
}
// ChangeProtection changes the resource protection level of a Load Balancer.
func (c *LoadBalancerClient) ChangeProtection(ctx context.Context, loadBalancer *LoadBalancer, opts LoadBalancerChangeProtectionOpts) (*Action, *Response, error) {
reqBody := schema.LoadBalancerActionChangeProtectionRequest{
Delete: opts.Delete,
}
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/load_balancers/%d/actions/change_protection", loadBalancer.ID)
req, err := c.client.NewRequest(ctx, "POST", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
respBody := schema.LoadBalancerActionChangeProtectionResponse{}
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, err
}
// LoadBalancerChangeAlgorithmOpts specifies options for changing the algorithm of a Load Balancer.
type LoadBalancerChangeAlgorithmOpts struct {
Type LoadBalancerAlgorithmType
}
// ChangeAlgorithm changes the algorithm of a Load Balancer.
func (c *LoadBalancerClient) ChangeAlgorithm(ctx context.Context, loadBalancer *LoadBalancer, opts LoadBalancerChangeAlgorithmOpts) (*Action, *Response, error) {
reqBody := schema.LoadBalancerActionChangeAlgorithmRequest{
Type: string(opts.Type),
}
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/load_balancers/%d/actions/change_algorithm", loadBalancer.ID)
req, err := c.client.NewRequest(ctx, "POST", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
respBody := schema.LoadBalancerActionChangeAlgorithmResponse{}
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, err
}
// LoadBalancerAttachToNetworkOpts specifies options for attaching a Load Balancer to a network.
type LoadBalancerAttachToNetworkOpts struct {
Network *Network
IP net.IP
}
// AttachToNetwork attaches a Load Balancer to a network.
func (c *LoadBalancerClient) AttachToNetwork(ctx context.Context, loadBalancer *LoadBalancer, opts LoadBalancerAttachToNetworkOpts) (*Action, *Response, error) {
reqBody := schema.LoadBalancerActionAttachToNetworkRequest{
Network: opts.Network.ID,
}
if opts.IP != nil {
reqBody.IP = Ptr(opts.IP.String())
}
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/load_balancers/%d/actions/attach_to_network", loadBalancer.ID)
req, err := c.client.NewRequest(ctx, "POST", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
respBody := schema.LoadBalancerActionAttachToNetworkResponse{}
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, err
}
// LoadBalancerDetachFromNetworkOpts specifies options for detaching a Load Balancer from a network.
type LoadBalancerDetachFromNetworkOpts struct {
Network *Network
}
// DetachFromNetwork detaches a Load Balancer from a network.
func (c *LoadBalancerClient) DetachFromNetwork(ctx context.Context, loadBalancer *LoadBalancer, opts LoadBalancerDetachFromNetworkOpts) (*Action, *Response, error) {
reqBody := schema.LoadBalancerActionDetachFromNetworkRequest{
Network: opts.Network.ID,
}
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/load_balancers/%d/actions/detach_from_network", loadBalancer.ID)
req, err := c.client.NewRequest(ctx, "POST", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
respBody := schema.LoadBalancerActionDetachFromNetworkResponse{}
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, err
}
// EnablePublicInterface enables the Load Balancer's public network interface.
func (c *LoadBalancerClient) EnablePublicInterface(ctx context.Context, loadBalancer *LoadBalancer) (*Action, *Response, error) {
path := fmt.Sprintf("/load_balancers/%d/actions/enable_public_interface", loadBalancer.ID)
req, err := c.client.NewRequest(ctx, "POST", path, nil)
if err != nil {
return nil, nil, err
}
respBody := schema.LoadBalancerActionEnablePublicInterfaceResponse{}
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, err
}
// DisablePublicInterface disables the Load Balancer's public network interface.
func (c *LoadBalancerClient) DisablePublicInterface(ctx context.Context, loadBalancer *LoadBalancer) (*Action, *Response, error) {
path := fmt.Sprintf("/load_balancers/%d/actions/disable_public_interface", loadBalancer.ID)
req, err := c.client.NewRequest(ctx, "POST", path, nil)
if err != nil {
return nil, nil, err
}
respBody := schema.LoadBalancerActionDisablePublicInterfaceResponse{}
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, err
}
// LoadBalancerChangeTypeOpts specifies options for changing a Load Balancer's type.
type LoadBalancerChangeTypeOpts struct {
LoadBalancerType *LoadBalancerType // new Load Balancer type
}
// ChangeType changes a Load Balancer's type.
func (c *LoadBalancerClient) ChangeType(ctx context.Context, loadBalancer *LoadBalancer, opts LoadBalancerChangeTypeOpts) (*Action, *Response, error) {
reqBody := schema.LoadBalancerActionChangeTypeRequest{}
if opts.LoadBalancerType.ID != 0 {
reqBody.LoadBalancerType = opts.LoadBalancerType.ID
} else {
reqBody.LoadBalancerType = opts.LoadBalancerType.Name
}
reqBodyData, err := json.Marshal(reqBody)
if err != nil {
return nil, nil, err
}
path := fmt.Sprintf("/load_balancers/%d/actions/change_type", loadBalancer.ID)
req, err := c.client.NewRequest(ctx, "POST", path, bytes.NewReader(reqBodyData))
if err != nil {
return nil, nil, err
}
respBody := schema.LoadBalancerActionChangeTypeResponse{}
resp, err := c.client.Do(req, &respBody)
if err != nil {
return nil, resp, err
}
return ActionFromSchema(respBody.Action), resp, nil
}
// LoadBalancerMetricType is the type of available metrics for Load Balancers.
type LoadBalancerMetricType string
// Available types of Load Balancer metrics. See Hetzner Cloud API
// documentation for details.
const (
LoadBalancerMetricOpenConnections LoadBalancerMetricType = "open_connections"
LoadBalancerMetricConnectionsPerSecond LoadBalancerMetricType = "connections_per_second"
LoadBalancerMetricRequestsPerSecond LoadBalancerMetricType = "requests_per_second"
LoadBalancerMetricBandwidth LoadBalancerMetricType = "bandwidth"
)
// LoadBalancerGetMetricsOpts configures the call to get metrics for a Load
// Balancer.
type LoadBalancerGetMetricsOpts struct {
Types []LoadBalancerMetricType
Start time.Time
End time.Time
Step int
}
func (o *LoadBalancerGetMetricsOpts) addQueryParams(req *http.Request) error {
query := req.URL.Query()
if len(o.Types) == 0 {
return fmt.Errorf("no metric types specified")
}
for _, typ := range o.Types {
query.Add("type", string(typ))
}
if o.Start.IsZero() {
return fmt.Errorf("no start time specified")
}
query.Add("start", o.Start.Format(time.RFC3339))
if o.End.IsZero() {
return fmt.Errorf("no end time specified")
}