open-consul/agent/catalog_endpoint.go

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package agent
import (
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"fmt"
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"net/http"
"strings"
"github.com/hashicorp/consul/agent/structs"
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)
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func (s *HTTPServer) CatalogRegister(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if req.Method != "PUT" {
return nil, MethodNotAllowedError{req.Method, []string{"PUT"}}
}
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var args structs.RegisterRequest
if err := decodeBody(req, &args, nil); err != nil {
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resp.WriteHeader(http.StatusBadRequest)
fmt.Fprintf(resp, "Request decode failed: %v", err)
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return nil, nil
}
// Setup the default DC if not provided
if args.Datacenter == "" {
args.Datacenter = s.agent.config.Datacenter
}
s.parseToken(req, &args.Token)
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// Forward to the servers
var out struct{}
if err := s.agent.RPC("Catalog.Register", &args, &out); err != nil {
return nil, err
}
return true, nil
}
func (s *HTTPServer) CatalogDeregister(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if req.Method != "PUT" {
return nil, MethodNotAllowedError{req.Method, []string{"PUT"}}
}
var args structs.DeregisterRequest
if err := decodeBody(req, &args, nil); err != nil {
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resp.WriteHeader(http.StatusBadRequest)
fmt.Fprintf(resp, "Request decode failed: %v", err)
return nil, nil
}
// Setup the default DC if not provided
if args.Datacenter == "" {
args.Datacenter = s.agent.config.Datacenter
}
s.parseToken(req, &args.Token)
// Forward to the servers
var out struct{}
if err := s.agent.RPC("Catalog.Deregister", &args, &out); err != nil {
return nil, err
}
return true, nil
}
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func (s *HTTPServer) CatalogDatacenters(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if req.Method != "GET" {
return nil, MethodNotAllowedError{req.Method, []string{"GET"}}
}
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var out []string
if err := s.agent.RPC("Catalog.ListDatacenters", struct{}{}, &out); err != nil {
return nil, err
}
return out, nil
}
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func (s *HTTPServer) CatalogNodes(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if req.Method != "GET" {
return nil, MethodNotAllowedError{req.Method, []string{"GET"}}
}
// Setup the request
args := structs.DCSpecificRequest{}
s.parseSource(req, &args.Source)
args.NodeMetaFilters = s.parseMetaFilter(req)
if done := s.parse(resp, req, &args.Datacenter, &args.QueryOptions); done {
return nil, nil
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}
var out structs.IndexedNodes
defer setMeta(resp, &out.QueryMeta)
if err := s.agent.RPC("Catalog.ListNodes", &args, &out); err != nil {
return nil, err
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}
s.agent.TranslateAddresses(args.Datacenter, out.Nodes)
// Use empty list instead of nil
if out.Nodes == nil {
out.Nodes = make(structs.Nodes, 0)
}
return out.Nodes, nil
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}
func (s *HTTPServer) CatalogServices(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if req.Method != "GET" {
return nil, MethodNotAllowedError{req.Method, []string{"GET"}}
}
// Set default DC
args := structs.DCSpecificRequest{}
args.NodeMetaFilters = s.parseMetaFilter(req)
if done := s.parse(resp, req, &args.Datacenter, &args.QueryOptions); done {
return nil, nil
}
var out structs.IndexedServices
defer setMeta(resp, &out.QueryMeta)
if err := s.agent.RPC("Catalog.ListServices", &args, &out); err != nil {
return nil, err
}
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// Use empty map instead of nil
if out.Services == nil {
out.Services = make(structs.Services, 0)
}
return out.Services, nil
}
func (s *HTTPServer) CatalogServiceNodes(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if req.Method != "GET" {
return nil, MethodNotAllowedError{req.Method, []string{"GET"}}
}
// Set default DC
args := structs.ServiceSpecificRequest{}
s.parseSource(req, &args.Source)
args.NodeMetaFilters = s.parseMetaFilter(req)
if done := s.parse(resp, req, &args.Datacenter, &args.QueryOptions); done {
return nil, nil
}
// Check for a tag
params := req.URL.Query()
if _, ok := params["tag"]; ok {
args.ServiceTag = params.Get("tag")
args.TagFilter = true
}
// Pull out the service name
args.ServiceName = strings.TrimPrefix(req.URL.Path, "/v1/catalog/service/")
if args.ServiceName == "" {
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resp.WriteHeader(http.StatusBadRequest)
fmt.Fprint(resp, "Missing service name")
return nil, nil
}
// Make the RPC request
var out structs.IndexedServiceNodes
defer setMeta(resp, &out.QueryMeta)
if err := s.agent.RPC("Catalog.ServiceNodes", &args, &out); err != nil {
return nil, err
}
s.agent.TranslateAddresses(args.Datacenter, out.ServiceNodes)
// Use empty list instead of nil
if out.ServiceNodes == nil {
out.ServiceNodes = make(structs.ServiceNodes, 0)
}
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for _, s := range out.ServiceNodes {
if s.ServiceTags == nil {
s.ServiceTags = make([]string, 0)
}
}
return out.ServiceNodes, nil
}
func (s *HTTPServer) CatalogNodeServices(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if req.Method != "GET" {
return nil, MethodNotAllowedError{req.Method, []string{"GET"}}
}
// Set default Datacenter
args := structs.NodeSpecificRequest{}
if done := s.parse(resp, req, &args.Datacenter, &args.QueryOptions); done {
return nil, nil
}
// Pull out the node name
args.Node = strings.TrimPrefix(req.URL.Path, "/v1/catalog/node/")
if args.Node == "" {
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resp.WriteHeader(http.StatusBadRequest)
fmt.Fprint(resp, "Missing node name")
return nil, nil
}
// Make the RPC request
var out structs.IndexedNodeServices
defer setMeta(resp, &out.QueryMeta)
if err := s.agent.RPC("Catalog.NodeServices", &args, &out); err != nil {
return nil, err
}
if out.NodeServices != nil && out.NodeServices.Node != nil {
s.agent.TranslateAddresses(args.Datacenter, out.NodeServices.Node)
}
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// Use empty list instead of nil
if out.NodeServices != nil {
for _, s := range out.NodeServices.Services {
if s.Tags == nil {
s.Tags = make([]string, 0)
}
}
}
return out.NodeServices, nil
}