2014-01-10 23:13:37 +00:00
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package agent
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import (
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Use fmt.Fprint/Fprintf/Fprintln
Used the following rewrite rules:
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a, b, c, d))) -> fmt.Fprintf(resp, a, b, c, d)' *.go
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a, b, c))) -> fmt.Fprintf(resp, a, b, c)' *.go
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a, b))) -> fmt.Fprintf(resp, a, b)' *.go
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a))) -> fmt.Fprint(resp, a)' *.go
gofmt -w -r 'resp.Write([]byte(a + "\n")) -> fmt.Fprintln(resp, a)' *.go
gofmt -w -r 'resp.Write([]byte(a)) -> fmt.Fprint(resp, a)' *.go
2017-04-20 14:07:42 +00:00
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"fmt"
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2014-01-10 23:13:37 +00:00
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"net/http"
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2020-06-09 21:08:28 +00:00
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"net/url"
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2017-06-09 18:36:00 +00:00
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"strconv"
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2014-01-10 23:13:37 +00:00
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"strings"
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2016-04-23 23:01:59 +00:00
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2018-09-06 10:34:28 +00:00
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cachetype "github.com/hashicorp/consul/agent/cache-types"
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2017-07-06 10:34:00 +00:00
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"github.com/hashicorp/consul/agent/structs"
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2017-04-19 23:00:11 +00:00
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"github.com/hashicorp/consul/api"
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2014-01-10 23:13:37 +00:00
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)
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2020-06-10 18:07:15 +00:00
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const (
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serviceHealth = "service"
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connectHealth = "connect"
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ingressHealth = "ingress"
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)
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2014-04-21 19:40:11 +00:00
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func (s *HTTPServer) HealthChecksInState(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
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2014-01-10 23:13:37 +00:00
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// Set default DC
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2014-02-05 22:36:13 +00:00
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args := structs.ChecksInStateRequest{}
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2019-12-10 02:26:41 +00:00
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if err := s.parseEntMeta(req, &args.EnterpriseMeta); err != nil {
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return nil, err
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}
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2015-07-27 21:41:46 +00:00
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s.parseSource(req, &args.Source)
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2017-01-14 01:08:43 +00:00
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args.NodeMetaFilters = s.parseMetaFilter(req)
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2014-04-21 19:25:36 +00:00
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if done := s.parse(resp, req, &args.Datacenter, &args.QueryOptions); done {
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2014-04-21 19:40:11 +00:00
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return nil, nil
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2014-01-10 23:13:37 +00:00
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}
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// Pull out the service name
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args.State = strings.TrimPrefix(req.URL.Path, "/v1/health/state/")
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if args.State == "" {
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2017-08-23 19:19:11 +00:00
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resp.WriteHeader(http.StatusBadRequest)
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Use fmt.Fprint/Fprintf/Fprintln
Used the following rewrite rules:
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a, b, c, d))) -> fmt.Fprintf(resp, a, b, c, d)' *.go
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a, b, c))) -> fmt.Fprintf(resp, a, b, c)' *.go
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a, b))) -> fmt.Fprintf(resp, a, b)' *.go
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a))) -> fmt.Fprint(resp, a)' *.go
gofmt -w -r 'resp.Write([]byte(a + "\n")) -> fmt.Fprintln(resp, a)' *.go
gofmt -w -r 'resp.Write([]byte(a)) -> fmt.Fprint(resp, a)' *.go
2017-04-20 14:07:42 +00:00
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fmt.Fprint(resp, "Missing check state")
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2014-04-21 19:40:11 +00:00
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return nil, nil
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2014-01-10 23:13:37 +00:00
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}
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// Make the RPC request
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2014-02-05 22:36:13 +00:00
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var out structs.IndexedHealthChecks
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2014-04-21 19:40:11 +00:00
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defer setMeta(resp, &out.QueryMeta)
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2018-03-30 15:14:44 +00:00
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RETRY_ONCE:
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2014-01-10 23:13:37 +00:00
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if err := s.agent.RPC("Health.ChecksInState", &args, &out); err != nil {
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2014-04-21 19:40:11 +00:00
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return nil, err
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2014-01-10 23:13:37 +00:00
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}
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2018-03-30 15:14:44 +00:00
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if args.QueryOptions.AllowStale && args.MaxStaleDuration > 0 && args.MaxStaleDuration < out.LastContact {
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args.AllowStale = false
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args.MaxStaleDuration = 0
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goto RETRY_ONCE
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}
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out.ConsistencyLevel = args.QueryOptions.ConsistencyLevel()
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2015-11-15 05:05:37 +00:00
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// Use empty list instead of nil
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if out.HealthChecks == nil {
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out.HealthChecks = make(structs.HealthChecks, 0)
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}
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2018-02-07 04:35:55 +00:00
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for i, c := range out.HealthChecks {
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2017-04-28 01:22:07 +00:00
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if c.ServiceTags == nil {
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2018-02-07 04:35:55 +00:00
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clone := *c
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clone.ServiceTags = make([]string, 0)
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out.HealthChecks[i] = &clone
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2017-04-28 01:22:07 +00:00
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}
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}
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2014-04-21 19:40:11 +00:00
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return out.HealthChecks, nil
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2014-01-10 23:13:37 +00:00
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}
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2014-04-21 19:40:11 +00:00
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func (s *HTTPServer) HealthNodeChecks(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
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2014-01-10 23:13:37 +00:00
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// Set default DC
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2014-02-05 22:36:13 +00:00
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args := structs.NodeSpecificRequest{}
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2019-12-10 02:26:41 +00:00
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if err := s.parseEntMeta(req, &args.EnterpriseMeta); err != nil {
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return nil, err
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}
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2014-04-21 19:25:36 +00:00
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if done := s.parse(resp, req, &args.Datacenter, &args.QueryOptions); done {
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2014-04-21 19:40:11 +00:00
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return nil, nil
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2014-01-10 23:13:37 +00:00
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}
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// Pull out the service name
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args.Node = strings.TrimPrefix(req.URL.Path, "/v1/health/node/")
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if args.Node == "" {
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2017-08-23 19:19:11 +00:00
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resp.WriteHeader(http.StatusBadRequest)
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Use fmt.Fprint/Fprintf/Fprintln
Used the following rewrite rules:
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a, b, c, d))) -> fmt.Fprintf(resp, a, b, c, d)' *.go
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a, b, c))) -> fmt.Fprintf(resp, a, b, c)' *.go
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a, b))) -> fmt.Fprintf(resp, a, b)' *.go
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a))) -> fmt.Fprint(resp, a)' *.go
gofmt -w -r 'resp.Write([]byte(a + "\n")) -> fmt.Fprintln(resp, a)' *.go
gofmt -w -r 'resp.Write([]byte(a)) -> fmt.Fprint(resp, a)' *.go
2017-04-20 14:07:42 +00:00
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fmt.Fprint(resp, "Missing node name")
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2014-04-21 19:40:11 +00:00
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return nil, nil
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2014-01-10 23:13:37 +00:00
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}
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// Make the RPC request
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2014-02-05 22:36:13 +00:00
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var out structs.IndexedHealthChecks
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2014-04-21 19:40:11 +00:00
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defer setMeta(resp, &out.QueryMeta)
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2018-03-30 15:14:44 +00:00
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RETRY_ONCE:
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2014-01-10 23:13:37 +00:00
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if err := s.agent.RPC("Health.NodeChecks", &args, &out); err != nil {
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2014-04-21 19:40:11 +00:00
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return nil, err
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2014-01-10 23:13:37 +00:00
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}
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2018-03-30 15:14:44 +00:00
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if args.QueryOptions.AllowStale && args.MaxStaleDuration > 0 && args.MaxStaleDuration < out.LastContact {
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args.AllowStale = false
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args.MaxStaleDuration = 0
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goto RETRY_ONCE
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}
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out.ConsistencyLevel = args.QueryOptions.ConsistencyLevel()
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2015-11-15 05:05:37 +00:00
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// Use empty list instead of nil
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if out.HealthChecks == nil {
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out.HealthChecks = make(structs.HealthChecks, 0)
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}
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2018-02-07 04:35:55 +00:00
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for i, c := range out.HealthChecks {
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2017-04-28 01:22:07 +00:00
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if c.ServiceTags == nil {
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2018-02-07 04:35:55 +00:00
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clone := *c
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clone.ServiceTags = make([]string, 0)
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out.HealthChecks[i] = &clone
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2017-04-28 01:22:07 +00:00
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}
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}
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2014-04-21 19:40:11 +00:00
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return out.HealthChecks, nil
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2014-01-10 23:13:37 +00:00
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}
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2014-04-21 19:40:11 +00:00
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func (s *HTTPServer) HealthServiceChecks(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
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2014-01-10 23:13:37 +00:00
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// Set default DC
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2014-02-05 22:36:13 +00:00
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args := structs.ServiceSpecificRequest{}
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2020-02-10 15:40:44 +00:00
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if err := s.parseEntMetaNoWildcard(req, &args.EnterpriseMeta); err != nil {
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2019-12-10 02:26:41 +00:00
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return nil, err
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}
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2015-07-27 21:41:46 +00:00
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s.parseSource(req, &args.Source)
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2017-01-14 01:08:43 +00:00
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args.NodeMetaFilters = s.parseMetaFilter(req)
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2014-04-21 19:25:36 +00:00
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if done := s.parse(resp, req, &args.Datacenter, &args.QueryOptions); done {
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2014-04-21 19:40:11 +00:00
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return nil, nil
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2014-01-10 23:13:37 +00:00
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}
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// Pull out the service name
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args.ServiceName = strings.TrimPrefix(req.URL.Path, "/v1/health/checks/")
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if args.ServiceName == "" {
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2017-08-23 19:19:11 +00:00
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resp.WriteHeader(http.StatusBadRequest)
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Use fmt.Fprint/Fprintf/Fprintln
Used the following rewrite rules:
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a, b, c, d))) -> fmt.Fprintf(resp, a, b, c, d)' *.go
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a, b, c))) -> fmt.Fprintf(resp, a, b, c)' *.go
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a, b))) -> fmt.Fprintf(resp, a, b)' *.go
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a))) -> fmt.Fprint(resp, a)' *.go
gofmt -w -r 'resp.Write([]byte(a + "\n")) -> fmt.Fprintln(resp, a)' *.go
gofmt -w -r 'resp.Write([]byte(a)) -> fmt.Fprint(resp, a)' *.go
2017-04-20 14:07:42 +00:00
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fmt.Fprint(resp, "Missing service name")
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2014-04-21 19:40:11 +00:00
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return nil, nil
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2014-01-10 23:13:37 +00:00
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}
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// Make the RPC request
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2014-02-05 22:36:13 +00:00
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var out structs.IndexedHealthChecks
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2014-04-21 19:40:11 +00:00
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defer setMeta(resp, &out.QueryMeta)
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2018-03-30 15:14:44 +00:00
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RETRY_ONCE:
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2014-01-10 23:13:37 +00:00
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if err := s.agent.RPC("Health.ServiceChecks", &args, &out); err != nil {
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2014-04-21 19:40:11 +00:00
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return nil, err
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2014-01-10 23:13:37 +00:00
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}
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2018-03-30 15:14:44 +00:00
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if args.QueryOptions.AllowStale && args.MaxStaleDuration > 0 && args.MaxStaleDuration < out.LastContact {
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args.AllowStale = false
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args.MaxStaleDuration = 0
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goto RETRY_ONCE
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}
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out.ConsistencyLevel = args.QueryOptions.ConsistencyLevel()
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2015-11-15 05:05:37 +00:00
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// Use empty list instead of nil
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if out.HealthChecks == nil {
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out.HealthChecks = make(structs.HealthChecks, 0)
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}
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2018-02-07 04:35:55 +00:00
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for i, c := range out.HealthChecks {
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2017-04-28 01:22:07 +00:00
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if c.ServiceTags == nil {
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2018-02-07 04:35:55 +00:00
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clone := *c
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clone.ServiceTags = make([]string, 0)
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out.HealthChecks[i] = &clone
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2017-04-28 01:22:07 +00:00
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}
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}
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2014-04-21 19:40:11 +00:00
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return out.HealthChecks, nil
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2014-01-10 23:13:37 +00:00
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}
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2020-06-10 18:07:15 +00:00
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// HealthIngressServiceNodes should return "all the healthy ingress gateway instances
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// that I can use to access this connect-enabled service without mTLS".
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func (s *HTTPServer) HealthIngressServiceNodes(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
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return s.healthServiceNodes(resp, req, ingressHealth)
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}
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// HealthConnectServiceNodes should return "all healthy connect-enabled
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// endpoints (e.g. could be side car proxies or native instances) for this
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// service so I can connect with mTLS".
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2018-03-09 17:52:32 +00:00
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func (s *HTTPServer) HealthConnectServiceNodes(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
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2020-06-10 18:07:15 +00:00
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return s.healthServiceNodes(resp, req, connectHealth)
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2018-03-09 17:52:32 +00:00
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}
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2020-06-10 18:07:15 +00:00
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// HealthServiceNodes should return "all the healthy instances of this service
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// registered so I can connect directly to them".
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2014-04-21 19:40:11 +00:00
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func (s *HTTPServer) HealthServiceNodes(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
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2020-06-10 18:07:15 +00:00
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return s.healthServiceNodes(resp, req, serviceHealth)
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2018-03-09 17:52:32 +00:00
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}
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2020-06-10 18:07:15 +00:00
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func (s *HTTPServer) healthServiceNodes(resp http.ResponseWriter, req *http.Request, healthType string) (interface{}, error) {
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2014-01-10 23:13:37 +00:00
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// Set default DC
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2020-06-09 21:08:28 +00:00
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args := structs.ServiceSpecificRequest{}
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2020-02-10 15:40:44 +00:00
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if err := s.parseEntMetaNoWildcard(req, &args.EnterpriseMeta); err != nil {
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2019-12-10 02:26:41 +00:00
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return nil, err
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}
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2015-07-27 21:41:46 +00:00
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s.parseSource(req, &args.Source)
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2017-01-14 01:08:43 +00:00
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args.NodeMetaFilters = s.parseMetaFilter(req)
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2014-04-21 19:25:36 +00:00
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if done := s.parse(resp, req, &args.Datacenter, &args.QueryOptions); done {
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2014-04-21 19:40:11 +00:00
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return nil, nil
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2014-01-10 23:13:37 +00:00
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}
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2018-10-11 11:50:05 +00:00
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// Check for tags
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2014-02-05 22:36:13 +00:00
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params := req.URL.Query()
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2014-01-10 23:13:37 +00:00
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if _, ok := params["tag"]; ok {
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2018-10-11 11:50:05 +00:00
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args.ServiceTags = params["tag"]
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2014-01-10 23:13:37 +00:00
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args.TagFilter = true
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}
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2018-03-09 17:52:32 +00:00
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// Determine the prefix
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2020-06-10 18:07:15 +00:00
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var prefix string
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switch healthType {
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case connectHealth:
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2018-03-09 17:52:32 +00:00
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prefix = "/v1/health/connect/"
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2020-06-10 18:07:15 +00:00
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args.Connect = true
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case ingressHealth:
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prefix = "/v1/health/ingress/"
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args.Ingress = true
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default:
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// serviceHealth is the default type
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prefix = "/v1/health/service/"
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2018-03-09 17:52:32 +00:00
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}
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2014-01-10 23:13:37 +00:00
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// Pull out the service name
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2018-03-09 17:52:32 +00:00
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args.ServiceName = strings.TrimPrefix(req.URL.Path, prefix)
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2014-01-10 23:13:37 +00:00
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if args.ServiceName == "" {
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2017-08-23 19:19:11 +00:00
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resp.WriteHeader(http.StatusBadRequest)
|
Use fmt.Fprint/Fprintf/Fprintln
Used the following rewrite rules:
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a, b, c, d))) -> fmt.Fprintf(resp, a, b, c, d)' *.go
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a, b, c))) -> fmt.Fprintf(resp, a, b, c)' *.go
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a, b))) -> fmt.Fprintf(resp, a, b)' *.go
gofmt -w -r 'resp.Write([]byte(fmt.Sprintf(a))) -> fmt.Fprint(resp, a)' *.go
gofmt -w -r 'resp.Write([]byte(a + "\n")) -> fmt.Fprintln(resp, a)' *.go
gofmt -w -r 'resp.Write([]byte(a)) -> fmt.Fprint(resp, a)' *.go
2017-04-20 14:07:42 +00:00
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fmt.Fprint(resp, "Missing service name")
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2014-04-21 19:40:11 +00:00
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return nil, nil
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2014-01-10 23:13:37 +00:00
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}
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|
|
|
|
|
|
|
// Make the RPC request
|
2014-02-05 22:36:13 +00:00
|
|
|
var out structs.IndexedCheckServiceNodes
|
2014-04-21 19:40:11 +00:00
|
|
|
defer setMeta(resp, &out.QueryMeta)
|
2018-09-06 10:34:28 +00:00
|
|
|
|
2020-06-08 08:08:12 +00:00
|
|
|
if s.agent.config.HTTPUseCache && args.QueryOptions.UseCache {
|
2018-09-06 10:34:28 +00:00
|
|
|
raw, m, err := s.agent.cache.Get(cachetype.HealthServicesName, &args)
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
defer setCacheMeta(resp, &m)
|
|
|
|
reply, ok := raw.(*structs.IndexedCheckServiceNodes)
|
|
|
|
if !ok {
|
|
|
|
// This should never happen, but we want to protect against panics
|
|
|
|
return nil, fmt.Errorf("internal error: response type not correct")
|
|
|
|
}
|
|
|
|
out = *reply
|
|
|
|
} else {
|
|
|
|
RETRY_ONCE:
|
|
|
|
if err := s.agent.RPC("Health.ServiceNodes", &args, &out); err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
if args.QueryOptions.AllowStale && args.MaxStaleDuration > 0 && args.MaxStaleDuration < out.LastContact {
|
|
|
|
args.AllowStale = false
|
|
|
|
args.MaxStaleDuration = 0
|
|
|
|
goto RETRY_ONCE
|
|
|
|
}
|
2018-03-30 15:14:44 +00:00
|
|
|
}
|
|
|
|
out.ConsistencyLevel = args.QueryOptions.ConsistencyLevel()
|
2014-04-21 23:08:26 +00:00
|
|
|
|
|
|
|
// Filter to only passing if specified
|
2020-06-09 21:08:28 +00:00
|
|
|
filter, err := getBoolQueryParam(params, api.HealthPassing)
|
|
|
|
if err != nil {
|
|
|
|
resp.WriteHeader(http.StatusBadRequest)
|
|
|
|
fmt.Fprint(resp, "Invalid value for ?passing")
|
|
|
|
return nil, nil
|
|
|
|
}
|
2017-06-09 18:55:04 +00:00
|
|
|
|
2020-06-09 21:08:28 +00:00
|
|
|
if filter {
|
|
|
|
out.Nodes = filterNonPassing(out.Nodes)
|
2014-04-21 23:08:26 +00:00
|
|
|
}
|
2015-11-15 05:05:37 +00:00
|
|
|
|
2016-08-15 22:05:02 +00:00
|
|
|
// Translate addresses after filtering so we don't waste effort.
|
2020-01-17 14:54:17 +00:00
|
|
|
s.agent.TranslateAddresses(args.Datacenter, out.Nodes, TranslateAddressAcceptAny)
|
2016-08-15 22:05:02 +00:00
|
|
|
|
2015-11-15 05:05:37 +00:00
|
|
|
// Use empty list instead of nil
|
2017-04-28 01:22:07 +00:00
|
|
|
if out.Nodes == nil {
|
|
|
|
out.Nodes = make(structs.CheckServiceNodes, 0)
|
|
|
|
}
|
2017-04-20 18:42:22 +00:00
|
|
|
for i := range out.Nodes {
|
2015-11-15 05:05:37 +00:00
|
|
|
if out.Nodes[i].Checks == nil {
|
|
|
|
out.Nodes[i].Checks = make(structs.HealthChecks, 0)
|
|
|
|
}
|
2018-02-07 04:35:55 +00:00
|
|
|
for j, c := range out.Nodes[i].Checks {
|
2017-04-28 01:22:07 +00:00
|
|
|
if c.ServiceTags == nil {
|
2018-02-07 04:35:55 +00:00
|
|
|
clone := *c
|
|
|
|
clone.ServiceTags = make([]string, 0)
|
|
|
|
out.Nodes[i].Checks[j] = &clone
|
2017-04-28 01:22:07 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
if out.Nodes[i].Service != nil && out.Nodes[i].Service.Tags == nil {
|
2018-02-07 04:35:55 +00:00
|
|
|
clone := *out.Nodes[i].Service
|
|
|
|
clone.Tags = make([]string, 0)
|
|
|
|
out.Nodes[i].Service = &clone
|
2017-04-28 01:22:07 +00:00
|
|
|
}
|
2015-11-15 05:05:37 +00:00
|
|
|
}
|
2014-04-21 19:40:11 +00:00
|
|
|
return out.Nodes, nil
|
2014-01-10 23:13:37 +00:00
|
|
|
}
|
2014-04-21 23:08:26 +00:00
|
|
|
|
2020-06-09 21:08:28 +00:00
|
|
|
func getBoolQueryParam(params url.Values, key string) (bool, error) {
|
|
|
|
var param bool
|
|
|
|
if _, ok := params[key]; ok {
|
|
|
|
val := params.Get(key)
|
|
|
|
// Orginally a comment declared this check should be removed after Consul
|
|
|
|
// 0.10, to no longer support using ?passing without a value. However, I
|
|
|
|
// think this is a reasonable experience for a user and so am keeping it
|
|
|
|
// here.
|
|
|
|
if val == "" {
|
|
|
|
param = true
|
|
|
|
} else {
|
|
|
|
var err error
|
|
|
|
param, err = strconv.ParseBool(val)
|
|
|
|
if err != nil {
|
|
|
|
return false, err
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return param, nil
|
|
|
|
}
|
|
|
|
|
2014-04-21 23:08:26 +00:00
|
|
|
// filterNonPassing is used to filter out any nodes that have check that are not passing
|
|
|
|
func filterNonPassing(nodes structs.CheckServiceNodes) structs.CheckServiceNodes {
|
|
|
|
n := len(nodes)
|
2019-04-16 16:29:34 +00:00
|
|
|
|
|
|
|
// Make a copy of the cached nodes rather than operating on the cache directly
|
|
|
|
out := append(nodes[:0:0], nodes...)
|
|
|
|
|
2014-07-05 16:49:10 +00:00
|
|
|
OUTER:
|
2014-04-21 23:08:26 +00:00
|
|
|
for i := 0; i < n; i++ {
|
2019-04-16 16:29:34 +00:00
|
|
|
node := out[i]
|
2014-04-21 23:08:26 +00:00
|
|
|
for _, check := range node.Checks {
|
2017-04-19 23:00:11 +00:00
|
|
|
if check.Status != api.HealthPassing {
|
2019-04-16 16:29:34 +00:00
|
|
|
out[i], out[n-1] = out[n-1], structs.CheckServiceNode{}
|
2014-04-21 23:08:26 +00:00
|
|
|
n--
|
|
|
|
i--
|
2014-07-05 16:49:10 +00:00
|
|
|
continue OUTER
|
2014-04-21 23:08:26 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2019-04-16 16:29:34 +00:00
|
|
|
return out[:n]
|
2014-04-21 23:08:26 +00:00
|
|
|
}
|