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fix: use SO_LINGER option when doing TCP healthchecks
This makes sure sockets used for TCP checks get cleaned up fast enough. Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,20 +1,20 @@ | ||
| module github.com/siderolabs/go-loadbalancer | ||
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| go 1.19 | ||
| go 1.20 | ||
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| replace inet.af/tcpproxy => github.com/smira/tcpproxy v0.0.0-20201015133617-de5f7797b95b | ||
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| require ( | ||
| github.com/siderolabs/go-retry v0.3.2 | ||
| github.com/stretchr/testify v1.8.1 | ||
| go.uber.org/goleak v1.2.0 | ||
| github.com/stretchr/testify v1.8.2 | ||
| go.uber.org/goleak v1.2.1 | ||
| inet.af/tcpproxy v0.0.0-20221017015627-91f861402626 | ||
| ) | ||
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| require ( | ||
| github.com/davecgh/go-spew v1.1.1 // indirect | ||
| github.com/pmezard/go-difflib v1.0.0 // indirect | ||
| golang.org/x/sys v0.1.0 // indirect | ||
| golang.org/x/sys v0.8.0 // indirect | ||
| gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect | ||
| gopkg.in/yaml.v3 v3.0.1 // indirect | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| // This Source Code Form is subject to the terms of the Mozilla Public | ||
| // License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| // file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
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| //go:build !windows | ||
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| package loadbalancer | ||
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| import ( | ||
| "net" | ||
| "syscall" | ||
| ) | ||
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| func probeDialer() *net.Dialer { | ||
| return &net.Dialer{ | ||
| // The dialer reduces the TIME-WAIT period to 1 seconds instead of the OS default of 60 seconds. | ||
| Control: func(network, address string, c syscall.RawConn) error { | ||
| return c.Control(func(fd uintptr) { | ||
| syscall.SetsockoptLinger(int(fd), syscall.SOL_SOCKET, syscall.SO_LINGER, &syscall.Linger{Onoff: 1, Linger: 1}) //nolint: errcheck | ||
| }) | ||
| }, | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| // This Source Code Form is subject to the terms of the Mozilla Public | ||
| // License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| // file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
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| //go:build windows | ||
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| package loadbalancer | ||
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| import ( | ||
| "net" | ||
| "syscall" | ||
| ) | ||
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| func probeDialer() *net.Dialer { | ||
| return &net.Dialer{ | ||
| // The dialer reduces the TIME-WAIT period to 1 seconds instead of the OS default of 60 seconds. | ||
| Control: func(network, address string, c syscall.RawConn) error { | ||
| return c.Control(func(fd uintptr) { | ||
| syscall.SetsockoptLinger(syscall.Handle(fd), syscall.SOL_SOCKET, syscall.SO_LINGER, &syscall.Linger{Onoff: 1, Linger: 1}) //nolint: errcheck | ||
| }) | ||
| }, | ||
| } | ||
| } |