mirror of
https://github.com/gravitational/teleport.git
synced 2026-11-01 13:39:37 +08:00
Alan Parra
a75fcc21d8
Update metalinter, fix a few lint warnings and replace deprecated linters. `deadcode`, `structcheck` and `varcheck` are abandoned and now replaced by [`unused`][1]. Since 1.19, `go fmt` reformats godocs according to https://go.dev/doc/comment. I've done a bulk-reformatting of the codebase to keep the linter happy. Backporting is mostly harmless (the exception being `lib/services/role_test.go`, that for some reason breaks the _old_ linter using the new format). [1]: https://golangci-lint.run/usage/linters/ * Bump golangci-lint version * Replace abandoned linters * Fix bodyclose on lib/auth/github.com * Fix bodyclose on lib/kube/proxy/streamproto/proto_test.go * Fix bodyclose on lib/srv/alpnproxy/proxy_test.go * Fix bodyclose on lib/web/conn_upgrade_test.go * Silence staticcheck on lib/kube/proxy/forwarder_test.go * Silence staticcheck on lib/utils/certs_test.go * Address BuildNameToCertificate deprecation warnings * Run `go fmt ./...` * Run `go fmt ./...` on api/ * Ignore formatting in role_test.go * Remove redundant initializers in lib/srv/uacc/ * Update e/
34 lines
1.6 KiB
Go
34 lines
1.6 KiB
Go
// Copyright 2022 Gravitational, Inc
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package breaker implements a circuit breaker.
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//
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// Circuit breaker watches the error from executed functions and according to the configured TripFn will
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// allow requests for a period of time before slowly allowing a few.
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//
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// Circuit breakers start in StateStandby first, observing errors and watching Metrics.
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//
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// Once the Circuit breaker TripFn returns true, it enters the StateTripped, where it blocks all traffic and returns
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// ErrStateTripped for the configured Config.TrippedPeriod.
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//
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// After the Config.TrippedPeriod passes, Circuit breaker enters StateRecovering, during that state it will
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// either transition to StateStandby after the Config.RecoveryLimit is met or StateTripped if the Config.Recover TripFn
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// is satisfied.
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//
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// It is possible to define actions on transitions between states:
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//
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// * Config.OnTripped is called on transition (StateStandby -> StateTripped)
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// * Config.OnStandBy is called on transition (StateRecovering -> StateStandby)
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package breaker
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