68 lines
2.4 KiB
Go
68 lines
2.4 KiB
Go
package proxycfgglue
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import (
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"context"
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"github.com/hashicorp/go-memdb"
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"github.com/hashicorp/consul/agent/cache"
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cachetype "github.com/hashicorp/consul/agent/cache-types"
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"github.com/hashicorp/consul/agent/consul/watch"
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"github.com/hashicorp/consul/agent/proxycfg"
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"github.com/hashicorp/consul/agent/structs"
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"github.com/hashicorp/consul/agent/structs/aclfilter"
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)
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// CacheFederationStateListMeshGateways satisfies the proxycfg.FederationStateListMeshGateways
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// interface by sourcing data from the agent cache.
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func CacheFederationStateListMeshGateways(c *cache.Cache) proxycfg.FederationStateListMeshGateways {
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return &cacheProxyDataSource[*structs.DCSpecificRequest]{c, cachetype.FederationStateListMeshGatewaysName}
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}
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// ServerFederationStateListMeshGateways satisfies the proxycfg.FederationStateListMeshGateways
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// interface by sourcing data from a blocking query against the server's state
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// store.
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func ServerFederationStateListMeshGateways(deps ServerDataSourceDeps) proxycfg.FederationStateListMeshGateways {
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return &serverFederationStateListMeshGateways{deps}
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}
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type serverFederationStateListMeshGateways struct {
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deps ServerDataSourceDeps
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}
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func (s *serverFederationStateListMeshGateways) Notify(ctx context.Context, req *structs.DCSpecificRequest, correlationID string, ch chan<- proxycfg.UpdateEvent) error {
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return watch.ServerLocalNotify(ctx, correlationID, s.deps.GetStore,
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func(ws memdb.WatchSet, store Store) (uint64, *structs.DatacenterIndexedCheckServiceNodes, error) {
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authz, err := s.deps.ACLResolver.ResolveTokenAndDefaultMeta(req.Token, &req.EnterpriseMeta, nil)
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if err != nil {
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return 0, nil, err
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}
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index, fedStates, err := store.FederationStateList(ws)
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if err != nil {
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return 0, nil, err
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}
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results := make(map[string]structs.CheckServiceNodes)
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for _, fs := range fedStates {
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if gws := fs.MeshGateways; len(gws) != 0 {
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// Shallow clone to prevent ACL filtering manipulating the slice in memdb.
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results[fs.Datacenter] = gws.ShallowClone()
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}
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}
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rsp := &structs.DatacenterIndexedCheckServiceNodes{
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DatacenterNodes: results,
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QueryMeta: structs.QueryMeta{
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Index: index,
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Backend: structs.QueryBackendBlocking,
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},
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}
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aclfilter.New(authz, s.deps.Logger).Filter(rsp)
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return index, rsp, nil
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},
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dispatchBlockingQueryUpdate[*structs.DatacenterIndexedCheckServiceNodes](ch),
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)
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}
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