open-consul/api/catalog.go

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package api
import (
"net"
"strconv"
)
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type Weights struct {
Passing int
Warning int
}
type Node struct {
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ID string
Node string
Address string
Datacenter string
TaggedAddresses map[string]string
Meta map[string]string
CreateIndex uint64
ModifyIndex uint64
}
type ServiceAddress struct {
Address string
Port int
}
type CatalogService struct {
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ID string
Node string
Address string
Datacenter string
TaggedAddresses map[string]string
NodeMeta map[string]string
ServiceID string
ServiceName string
ServiceAddress string
ServiceTaggedAddresses map[string]ServiceAddress
ServiceTags []string
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ServiceMeta map[string]string
ServicePort int
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ServiceWeights Weights
ServiceEnableTagOverride bool
ServiceProxy *AgentServiceConnectProxyConfig
CreateIndex uint64
Checks HealthChecks
ModifyIndex uint64
Namespace string `json:",omitempty"`
Partition string `json:",omitempty"`
}
type CatalogNode struct {
Node *Node
Services map[string]*AgentService
}
type CatalogNodeServiceList struct {
Node *Node
Services []*AgentService
}
type CatalogRegistration struct {
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ID string
Node string
Address string
TaggedAddresses map[string]string
NodeMeta map[string]string
Datacenter string
Service *AgentService
Check *AgentCheck
Checks HealthChecks
SkipNodeUpdate bool
}
type CatalogDeregistration struct {
Node string
Address string `json:",omitempty"` // Obsolete.
Datacenter string
ServiceID string
CheckID string
Namespace string `json:",omitempty"`
}
type CompoundServiceName struct {
Name string
// Namespacing is a Consul Enterprise feature.
Namespace string `json:",omitempty"`
}
// GatewayService associates a gateway with a linked service.
// It also contains service-specific gateway configuration like ingress listener port and protocol.
type GatewayService struct {
Gateway CompoundServiceName
Service CompoundServiceName
GatewayKind ServiceKind
Port int `json:",omitempty"`
Protocol string `json:",omitempty"`
Hosts []string `json:",omitempty"`
CAFile string `json:",omitempty"`
CertFile string `json:",omitempty"`
KeyFile string `json:",omitempty"`
SNI string `json:",omitempty"`
FromWildcard bool `json:",omitempty"`
}
// Catalog can be used to query the Catalog endpoints
type Catalog struct {
c *Client
}
// Catalog returns a handle to the catalog endpoints
func (c *Client) Catalog() *Catalog {
return &Catalog{c}
}
func (c *Catalog) Register(reg *CatalogRegistration, q *WriteOptions) (*WriteMeta, error) {
r := c.c.newRequest("PUT", "/v1/catalog/register")
r.setWriteOptions(q)
r.obj = reg
rtt, resp, err := requireOK(c.c.doRequest(r))
if err != nil {
return nil, err
}
closeResponseBody(resp)
wm := &WriteMeta{}
wm.RequestTime = rtt
return wm, nil
}
func (c *Catalog) Deregister(dereg *CatalogDeregistration, q *WriteOptions) (*WriteMeta, error) {
r := c.c.newRequest("PUT", "/v1/catalog/deregister")
r.setWriteOptions(q)
r.obj = dereg
rtt, resp, err := requireOK(c.c.doRequest(r))
if err != nil {
return nil, err
}
closeResponseBody(resp)
wm := &WriteMeta{}
wm.RequestTime = rtt
return wm, nil
}
// Datacenters is used to query for all the known datacenters
func (c *Catalog) Datacenters() ([]string, error) {
r := c.c.newRequest("GET", "/v1/catalog/datacenters")
_, resp, err := requireOK(c.c.doRequest(r))
if err != nil {
return nil, err
}
defer closeResponseBody(resp)
var out []string
if err := decodeBody(resp, &out); err != nil {
return nil, err
}
return out, nil
}
// Nodes is used to query all the known nodes
func (c *Catalog) Nodes(q *QueryOptions) ([]*Node, *QueryMeta, error) {
r := c.c.newRequest("GET", "/v1/catalog/nodes")
r.setQueryOptions(q)
rtt, resp, err := requireOK(c.c.doRequest(r))
if err != nil {
return nil, nil, err
}
defer closeResponseBody(resp)
qm := &QueryMeta{}
parseQueryMeta(resp, qm)
qm.RequestTime = rtt
var out []*Node
if err := decodeBody(resp, &out); err != nil {
return nil, nil, err
}
return out, qm, nil
}
// Services is used to query for all known services
func (c *Catalog) Services(q *QueryOptions) (map[string][]string, *QueryMeta, error) {
r := c.c.newRequest("GET", "/v1/catalog/services")
r.setQueryOptions(q)
rtt, resp, err := requireOK(c.c.doRequest(r))
if err != nil {
return nil, nil, err
}
defer closeResponseBody(resp)
qm := &QueryMeta{}
parseQueryMeta(resp, qm)
qm.RequestTime = rtt
var out map[string][]string
if err := decodeBody(resp, &out); err != nil {
return nil, nil, err
}
return out, qm, nil
}
// Service is used to query catalog entries for a given service
func (c *Catalog) Service(service, tag string, q *QueryOptions) ([]*CatalogService, *QueryMeta, error) {
var tags []string
if tag != "" {
tags = []string{tag}
}
return c.service(service, tags, q, false)
}
// Supports multiple tags for filtering
func (c *Catalog) ServiceMultipleTags(service string, tags []string, q *QueryOptions) ([]*CatalogService, *QueryMeta, error) {
return c.service(service, tags, q, false)
}
// Connect is used to query catalog entries for a given Connect-enabled service
func (c *Catalog) Connect(service, tag string, q *QueryOptions) ([]*CatalogService, *QueryMeta, error) {
var tags []string
if tag != "" {
tags = []string{tag}
}
return c.service(service, tags, q, true)
}
// Supports multiple tags for filtering
func (c *Catalog) ConnectMultipleTags(service string, tags []string, q *QueryOptions) ([]*CatalogService, *QueryMeta, error) {
return c.service(service, tags, q, true)
}
func (c *Catalog) service(service string, tags []string, q *QueryOptions, connect bool) ([]*CatalogService, *QueryMeta, error) {
path := "/v1/catalog/service/" + service
if connect {
path = "/v1/catalog/connect/" + service
}
r := c.c.newRequest("GET", path)
r.setQueryOptions(q)
if len(tags) > 0 {
for _, tag := range tags {
r.params.Add("tag", tag)
}
}
rtt, resp, err := requireOK(c.c.doRequest(r))
if err != nil {
return nil, nil, err
}
defer closeResponseBody(resp)
qm := &QueryMeta{}
parseQueryMeta(resp, qm)
qm.RequestTime = rtt
var out []*CatalogService
if err := decodeBody(resp, &out); err != nil {
return nil, nil, err
}
return out, qm, nil
}
// Node is used to query for service information about a single node
func (c *Catalog) Node(node string, q *QueryOptions) (*CatalogNode, *QueryMeta, error) {
r := c.c.newRequest("GET", "/v1/catalog/node/"+node)
r.setQueryOptions(q)
rtt, resp, err := requireOK(c.c.doRequest(r))
if err != nil {
return nil, nil, err
}
defer closeResponseBody(resp)
qm := &QueryMeta{}
parseQueryMeta(resp, qm)
qm.RequestTime = rtt
var out *CatalogNode
if err := decodeBody(resp, &out); err != nil {
return nil, nil, err
}
return out, qm, nil
}
// NodeServiceList is used to query for service information about a single node. It differs from
// the Node function only in its return type which will contain a list of services as opposed to
// a map of service ids to services. This different structure allows for using the wildcard specifier
// '*' for the Namespace in the QueryOptions.
func (c *Catalog) NodeServiceList(node string, q *QueryOptions) (*CatalogNodeServiceList, *QueryMeta, error) {
r := c.c.newRequest("GET", "/v1/catalog/node-services/"+node)
r.setQueryOptions(q)
rtt, resp, err := requireOK(c.c.doRequest(r))
if err != nil {
return nil, nil, err
}
defer closeResponseBody(resp)
qm := &QueryMeta{}
parseQueryMeta(resp, qm)
qm.RequestTime = rtt
var out *CatalogNodeServiceList
if err := decodeBody(resp, &out); err != nil {
return nil, nil, err
}
return out, qm, nil
}
// GatewayServices is used to query the services associated with an ingress gateway or terminating gateway.
func (c *Catalog) GatewayServices(gateway string, q *QueryOptions) ([]*GatewayService, *QueryMeta, error) {
r := c.c.newRequest("GET", "/v1/catalog/gateway-services/"+gateway)
r.setQueryOptions(q)
rtt, resp, err := requireOK(c.c.doRequest(r))
if err != nil {
return nil, nil, err
}
defer closeResponseBody(resp)
qm := &QueryMeta{}
parseQueryMeta(resp, qm)
qm.RequestTime = rtt
var out []*GatewayService
if err := decodeBody(resp, &out); err != nil {
return nil, nil, err
}
return out, qm, nil
}
func ParseServiceAddr(addrPort string) (ServiceAddress, error) {
port := 0
host, portStr, err := net.SplitHostPort(addrPort)
if err == nil {
port, err = strconv.Atoi(portStr)
}
return ServiceAddress{Address: host, Port: port}, err
}