open-consul/agent/consul/health_endpoint.go

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package consul
import (
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"fmt"
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"github.com/armon/go-metrics"
pkg refactor command/agent/* -> agent/* command/consul/* -> agent/consul/* command/agent/command{,_test}.go -> command/agent{,_test}.go command/base/command.go -> command/base.go command/base/* -> command/* commands.go -> command/commands.go The script which did the refactor is: ( cd $GOPATH/src/github.com/hashicorp/consul git mv command/agent/command.go command/agent.go git mv command/agent/command_test.go command/agent_test.go git mv command/agent/flag_slice_value{,_test}.go command/ git mv command/agent . git mv command/base/command.go command/base.go git mv command/base/config_util{,_test}.go command/ git mv commands.go command/ git mv consul agent rmdir command/base/ gsed -i -e 's|package agent|package command|' command/agent{,_test}.go gsed -i -e 's|package agent|package command|' command/flag_slice_value{,_test}.go gsed -i -e 's|package base|package command|' command/base.go command/config_util{,_test}.go gsed -i -e 's|package main|package command|' command/commands.go gsed -i -e 's|base.Command|BaseCommand|' command/commands.go gsed -i -e 's|agent.Command|AgentCommand|' command/commands.go gsed -i -e 's|\tCommand:|\tBaseCommand:|' command/commands.go gsed -i -e 's|base\.||' command/commands.go gsed -i -e 's|command\.||' command/commands.go gsed -i -e 's|command|c|' main.go gsed -i -e 's|range Commands|range command.Commands|' main.go gsed -i -e 's|Commands: Commands|Commands: command.Commands|' main.go gsed -i -e 's|base\.BoolValue|BoolValue|' command/operator_autopilot_set.go gsed -i -e 's|base\.DurationValue|DurationValue|' command/operator_autopilot_set.go gsed -i -e 's|base\.StringValue|StringValue|' command/operator_autopilot_set.go gsed -i -e 's|base\.UintValue|UintValue|' command/operator_autopilot_set.go gsed -i -e 's|\bCommand\b|BaseCommand|' command/base.go gsed -i -e 's|BaseCommand Options|Command Options|' command/base.go gsed -i -e 's|base.Command|BaseCommand|' command/*.go gsed -i -e 's|c\.Command|c.BaseCommand|g' command/*.go gsed -i -e 's|\tCommand:|\tBaseCommand:|' command/*_test.go gsed -i -e 's|base\.||' command/*_test.go gsed -i -e 's|\bCommand\b|AgentCommand|' command/agent{,_test}.go gsed -i -e 's|cmd.AgentCommand|cmd.BaseCommand|' command/agent.go gsed -i -e 's|cli.AgentCommand = new(Command)|cli.Command = new(AgentCommand)|' command/agent_test.go gsed -i -e 's|exec.AgentCommand|exec.Command|' command/agent_test.go gsed -i -e 's|exec.BaseCommand|exec.Command|' command/agent_test.go gsed -i -e 's|NewTestAgent|agent.NewTestAgent|' command/agent_test.go gsed -i -e 's|= TestConfig|= agent.TestConfig|' command/agent_test.go gsed -i -e 's|: RetryJoin|: agent.RetryJoin|' command/agent_test.go gsed -i -e 's|\.\./\.\./|../|' command/config_util_test.go gsed -i -e 's|\bverifyUniqueListeners|VerifyUniqueListeners|' agent/config{,_test}.go command/agent.go gsed -i -e 's|\bserfLANKeyring\b|SerfLANKeyring|g' agent/{agent,keyring,testagent}.go command/agent.go gsed -i -e 's|\bserfWANKeyring\b|SerfWANKeyring|g' agent/{agent,keyring,testagent}.go command/agent.go gsed -i -e 's|\bNewAgent\b|agent.New|g' command/agent{,_test}.go gsed -i -e 's|\bNewAgent|New|' agent/{acl_test,agent,testagent}.go gsed -i -e 's|\bAgent\b|agent.&|g' command/agent{,_test}.go gsed -i -e 's|\bBool\b|agent.&|g' command/agent{,_test}.go gsed -i -e 's|\bConfig\b|agent.&|g' command/agent{,_test}.go gsed -i -e 's|\bDefaultConfig\b|agent.&|g' command/agent{,_test}.go gsed -i -e 's|\bDevConfig\b|agent.&|g' command/agent{,_test}.go gsed -i -e 's|\bMergeConfig\b|agent.&|g' command/agent{,_test}.go gsed -i -e 's|\bReadConfigPaths\b|agent.&|g' command/agent{,_test}.go gsed -i -e 's|\bParseMetaPair\b|agent.&|g' command/agent{,_test}.go gsed -i -e 's|\bSerfLANKeyring\b|agent.&|g' command/agent{,_test}.go gsed -i -e 's|\bSerfWANKeyring\b|agent.&|g' command/agent{,_test}.go gsed -i -e 's|circonus\.agent|circonus|g' command/agent{,_test}.go gsed -i -e 's|logger\.agent|logger|g' command/agent{,_test}.go gsed -i -e 's|metrics\.agent|metrics|g' command/agent{,_test}.go gsed -i -e 's|// agent.Agent|// agent|' command/agent{,_test}.go gsed -i -e 's|a\.agent\.Config|a.Config|' command/agent{,_test}.go gsed -i -e 's|agent\.AppendSliceValue|AppendSliceValue|' command/{configtest,validate}.go gsed -i -e 's|consul/consul|agent/consul|' GNUmakefile gsed -i -e 's|\.\./test|../../test|' agent/consul/server_test.go # fix imports f=$(grep -rl 'github.com/hashicorp/consul/command/agent' * | grep '\.go') gsed -i -e 's|github.com/hashicorp/consul/command/agent|github.com/hashicorp/consul/agent|' $f goimports -w $f f=$(grep -rl 'github.com/hashicorp/consul/consul' * | grep '\.go') gsed -i -e 's|github.com/hashicorp/consul/consul|github.com/hashicorp/consul/agent/consul|' $f goimports -w $f goimports -w command/*.go main.go )
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"github.com/hashicorp/consul/agent/consul/state"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/go-memdb"
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)
// Health endpoint is used to query the health information
type Health struct {
srv *Server
}
// ChecksInState is used to get all the checks in a given state
func (h *Health) ChecksInState(args *structs.ChecksInStateRequest,
reply *structs.IndexedHealthChecks) error {
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if done, err := h.srv.forward("Health.ChecksInState", args, args, reply); done {
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return err
}
return h.srv.blockingQuery(
&args.QueryOptions,
&reply.QueryMeta,
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func(ws memdb.WatchSet, state *state.Store) error {
var index uint64
var checks structs.HealthChecks
var err error
if len(args.NodeMetaFilters) > 0 {
index, checks, err = state.ChecksInStateByNodeMeta(ws, args.State, args.NodeMetaFilters)
} else {
index, checks, err = state.ChecksInState(ws, args.State)
}
if err != nil {
return err
}
reply.Index, reply.HealthChecks = index, checks
if err := h.srv.filterACL(args.Token, reply); err != nil {
return err
}
return h.srv.sortNodesByDistanceFrom(args.Source, reply.HealthChecks)
})
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}
// NodeChecks is used to get all the checks for a node
func (h *Health) NodeChecks(args *structs.NodeSpecificRequest,
reply *structs.IndexedHealthChecks) error {
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if done, err := h.srv.forward("Health.NodeChecks", args, args, reply); done {
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return err
}
return h.srv.blockingQuery(
&args.QueryOptions,
&reply.QueryMeta,
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func(ws memdb.WatchSet, state *state.Store) error {
index, checks, err := state.NodeChecks(ws, args.Node)
if err != nil {
return err
}
reply.Index, reply.HealthChecks = index, checks
return h.srv.filterACL(args.Token, reply)
})
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}
// ServiceChecks is used to get all the checks for a service
func (h *Health) ServiceChecks(args *structs.ServiceSpecificRequest,
reply *structs.IndexedHealthChecks) error {
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// Reject if tag filtering is on
if args.TagFilter {
return fmt.Errorf("Tag filtering is not supported")
}
// Potentially forward
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if done, err := h.srv.forward("Health.ServiceChecks", args, args, reply); done {
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return err
}
return h.srv.blockingQuery(
&args.QueryOptions,
&reply.QueryMeta,
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func(ws memdb.WatchSet, state *state.Store) error {
var index uint64
var checks structs.HealthChecks
var err error
if len(args.NodeMetaFilters) > 0 {
index, checks, err = state.ServiceChecksByNodeMeta(ws, args.ServiceName, args.NodeMetaFilters)
} else {
index, checks, err = state.ServiceChecks(ws, args.ServiceName)
}
if err != nil {
return err
}
reply.Index, reply.HealthChecks = index, checks
if err := h.srv.filterACL(args.Token, reply); err != nil {
return err
}
return h.srv.sortNodesByDistanceFrom(args.Source, reply.HealthChecks)
})
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}
// ServiceNodes returns all the nodes registered as part of a service including health info
func (h *Health) ServiceNodes(args *structs.ServiceSpecificRequest, reply *structs.IndexedCheckServiceNodes) error {
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if done, err := h.srv.forward("Health.ServiceNodes", args, args, reply); done {
return err
}
// Verify the arguments
if args.ServiceName == "" {
return fmt.Errorf("Must provide service name")
}
err := h.srv.blockingQuery(
&args.QueryOptions,
&reply.QueryMeta,
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func(ws memdb.WatchSet, state *state.Store) error {
var index uint64
var nodes structs.CheckServiceNodes
var err error
if args.TagFilter {
index, nodes, err = state.CheckServiceTagNodes(ws, args.ServiceName, args.ServiceTag)
} else {
index, nodes, err = state.CheckServiceNodes(ws, args.ServiceName)
}
if err != nil {
return err
}
reply.Index, reply.Nodes = index, nodes
if len(args.NodeMetaFilters) > 0 {
reply.Nodes = nodeMetaFilter(args.NodeMetaFilters, reply.Nodes)
}
if err := h.srv.filterACL(args.Token, reply); err != nil {
return err
}
return h.srv.sortNodesByDistanceFrom(args.Source, reply.Nodes)
})
// Provide some metrics
if err == nil {
metrics.IncrCounterWithLabels([]string{"consul", "health", "service", "query"}, 1,
[]metrics.Label{{Name: "service", Value: args.ServiceName}})
metrics.IncrCounterWithLabels([]string{"health", "service", "query"}, 1,
[]metrics.Label{{Name: "service", Value: args.ServiceName}})
if args.ServiceTag != "" {
metrics.IncrCounterWithLabels([]string{"consul", "health", "service", "query-tag"}, 1,
[]metrics.Label{{Name: "service", Value: args.ServiceName}, {Name: "tag", Value: args.ServiceTag}})
metrics.IncrCounterWithLabels([]string{"health", "service", "query-tag"}, 1,
[]metrics.Label{{Name: "service", Value: args.ServiceName}, {Name: "tag", Value: args.ServiceTag}})
}
if len(reply.Nodes) == 0 {
metrics.IncrCounterWithLabels([]string{"consul", "health", "service", "not-found"}, 1,
[]metrics.Label{{Name: "service", Value: args.ServiceName}})
metrics.IncrCounterWithLabels([]string{"health", "service", "not-found"}, 1,
[]metrics.Label{{Name: "service", Value: args.ServiceName}})
}
}
return err
}