mirror of https://github.com/status-im/consul.git
88 lines
2.4 KiB
Go
88 lines
2.4 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package peerstream
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import (
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"github.com/hashicorp/consul/agent/structs"
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"github.com/hashicorp/consul/types"
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)
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// healthSnapshot represents a normalized view of a set of CheckServiceNodes
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// meant for easy comparison to aid in differential synchronization
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type healthSnapshot struct {
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// Nodes is a map of a node name to a nodeSnapshot. Ideally we would be able to use
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// the types.NodeID and assume they are UUIDs for the map key but Consul doesn't
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// require a NodeID. Therefore we must key off of the only bit of ID material
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// that is required which is the node name.
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Nodes map[string]*nodeSnapshot
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}
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type nodeSnapshot struct {
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Node *structs.Node
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Services map[structs.ServiceID]*serviceSnapshot
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}
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type serviceSnapshot struct {
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Service *structs.NodeService
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Checks map[types.CheckID]*structs.HealthCheck
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}
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func newHealthSnapshot(all []structs.CheckServiceNode, partition, peerName string) *healthSnapshot {
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// For all nodes, services, and checks we override the peer name and
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// partition to be the local partition and local name for the peer.
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for _, instance := range all {
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instance.Node.PeerName = peerName
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instance.Node.OverridePartition(partition)
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instance.Service.PeerName = peerName
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instance.Service.OverridePartition(partition)
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for _, chk := range instance.Checks {
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chk.PeerName = peerName
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chk.OverridePartition(partition)
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}
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}
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snap := &healthSnapshot{
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Nodes: make(map[string]*nodeSnapshot),
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}
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for _, instance := range all {
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if instance.Node.Node == "" {
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panic("TODO(peering): data should always have a node name")
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}
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nodeSnap, ok := snap.Nodes[instance.Node.Node]
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if !ok {
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nodeSnap = &nodeSnapshot{
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Node: instance.Node,
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Services: make(map[structs.ServiceID]*serviceSnapshot),
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}
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snap.Nodes[instance.Node.Node] = nodeSnap
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}
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if instance.Service.ID == "" {
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panic("TODO(peering): data should always have a service ID")
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}
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sid := instance.Service.CompoundServiceID()
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svcSnap, ok := nodeSnap.Services[sid]
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if !ok {
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svcSnap = &serviceSnapshot{
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Service: instance.Service,
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Checks: make(map[types.CheckID]*structs.HealthCheck),
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}
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nodeSnap.Services[sid] = svcSnap
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}
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for _, c := range instance.Checks {
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if c.CheckID == "" {
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panic("TODO(peering): data should always have a check ID")
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}
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svcSnap.Checks[c.CheckID] = c
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}
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}
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return snap
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}
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