diff --git a/cmd/haproxy-lb/main.go b/cmd/haproxy-lb/main.go index 9d2033b..2fd6877 100644 --- a/cmd/haproxy-lb/main.go +++ b/cmd/haproxy-lb/main.go @@ -1,10 +1,12 @@ package main import ( + "errors" "flag" "os" "os/signal" "syscall" + "time" "git.giftfish.de/ston1th/haproxy-lb/pkg/api" "git.giftfish.de/ston1th/haproxy-lb/pkg/cluster" @@ -69,17 +71,26 @@ func main() { } }() go func() { - sig := make(chan os.Signal) + sig := make(chan os.Signal, 1) signal.Notify(sig, syscall.SIGHUP) for { <-sig c.Stepdown() } }() - sigs := make(chan os.Signal) + sigs := make(chan os.Signal, 1) signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM) s := <-sigs log.Info("haproxy-lb shutdown", "signal", s.String()) + go func() { + select { + case <-time.After(time.Second * 10): + log.Error(errors.New("shutdown took longer than 10 seconds"), "shutdown forced") + case <-sigs: + log.Error(errors.New("force shutdown triggerd"), "shutdown forced") + } + os.Exit(1) + }() c.Stop() log.Info("haproxy-lb stopped") } diff --git a/go.mod b/go.mod index ea212ef..ecb837a 100644 --- a/go.mod +++ b/go.mod @@ -3,6 +3,7 @@ module git.giftfish.de/ston1th/haproxy-lb go 1.16 require ( + git.giftfish.de/ston1th/netalloc v0.0.0-20210926174801-c39acaee43a5 git.giftfish.de/ston1th/raftbbolt v0.0.0-20201114165203-b85c94bfc9b0 github.com/armon/go-metrics v0.3.6 // indirect github.com/coreos/go-systemd/v22 v22.2.0 // indirect @@ -17,7 +18,6 @@ require ( github.com/hashicorp/raft v1.2.0 github.com/mdlayher/arp v0.0.0-20191213142603-f72070a231fc github.com/mdlayher/ethernet v0.0.0-20190606142754-0394541c37b7 - github.com/mikioh/ipaddr v0.0.0-20190404000644-d465c8ab6721 github.com/vishvananda/netlink v1.1.0 github.com/vishvananda/netns v0.0.0-20210104183010-2eb08e3e575f // indirect go.etcd.io/etcd/client/v3 v3.5.0-alpha.0 @@ -26,7 +26,6 @@ require ( golang.org/x/crypto v0.0.0-20210220033148-5ea612d1eb83 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110 // indirect golang.org/x/sys v0.0.0-20210305230114-8fe3ee5dd75b // indirect - golang.org/x/text v0.3.5 // indirect google.golang.org/genproto v0.0.0-20210303154014-9728d6b83eeb // indirect google.golang.org/grpc v1.36.0 // indirect gopkg.in/yaml.v2 v2.4.0 diff --git a/go.sum b/go.sum index 37990d1..a865f84 100644 --- a/go.sum +++ b/go.sum @@ -1,19 +1,36 @@ cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +git.giftfish.de/ston1th/netalloc v0.0.0-20210926155347-8b15c38eab5e h1:i6/z8yhUwiAFgbRUjLb4FTylsLLo+LJpbmJ2dPjYZAE= +git.giftfish.de/ston1th/netalloc v0.0.0-20210926155347-8b15c38eab5e/go.mod h1:ECRm6vIqNEDXBgJmKyXaBAWucdCzCVH5FG9Hfk6QX0E= +git.giftfish.de/ston1th/netalloc v0.0.0-20210926173058-aac88a8fadf4 h1:yktjmcxmooXQgmt1B09b2ZSpd4QeGlbuqIKGrou+Mfo= +git.giftfish.de/ston1th/netalloc v0.0.0-20210926173058-aac88a8fadf4/go.mod h1:ECRm6vIqNEDXBgJmKyXaBAWucdCzCVH5FG9Hfk6QX0E= +git.giftfish.de/ston1th/netalloc v0.0.0-20210926174801-c39acaee43a5 h1:DQzBQS2lYd4FrHHvVnqIEEfKUEXfbj/NwAAq+vRC4dg= +git.giftfish.de/ston1th/netalloc v0.0.0-20210926174801-c39acaee43a5/go.mod h1:ECRm6vIqNEDXBgJmKyXaBAWucdCzCVH5FG9Hfk6QX0E= git.giftfish.de/ston1th/raftbbolt v0.0.0-20201114165203-b85c94bfc9b0 h1:DU0PVdA2EHz2LFGEdkwgJopL9HQh5nFC9GJ7oqzZ300= git.giftfish.de/ston1th/raftbbolt v0.0.0-20201114165203-b85c94bfc9b0/go.mod h1:9dF/aHYkXts6/6oVyJ+vzXCn7NURDaoREaanX0aspx0= github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ= github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= github.com/DataDog/datadog-go v2.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ= github.com/DataDog/datadog-go v3.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ= +github.com/PuerkitoBio/purell v1.1.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0= +github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0= +github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE= +github.com/agnivade/levenshtein v1.0.1/go.mod h1:CURSv5d9Uaml+FovSIICkLbAUZ9S4RqaHDIsdSBg7lM= github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc= github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc= github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0= github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0= +github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883/go.mod h1:rCTlJbsFo29Kk6CurOXKm700vrz8f0KW0JNfpkRJY/8= github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY= github.com/armon/go-metrics v0.0.0-20190430140413-ec5e00d3c878/go.mod h1:3AMJUQhVx52RsWOnlkpikZr01T/yAVN2gn0861vByNg= github.com/armon/go-metrics v0.3.6 h1:x/tmtOF9cDBoXH7XoAGOz2qqm1DknFD1590XmD/DUJ8= github.com/armon/go-metrics v0.3.6/go.mod h1:4O98XIr/9W0sxpJ8UaYkvjk10Iff7SnFrb4QAOwNTFc= +github.com/asaskevich/govalidator v0.0.0-20180720115003-f9ffefc3facf/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY= +github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY= +github.com/asaskevich/govalidator v0.0.0-20200108200545-475eaeb16496/go.mod h1:oGkLhpf+kjZl6xBf758TQhh5XrAeiJv/7FRz/2spLIg= +github.com/asaskevich/govalidator v0.0.0-20200428143746-21a406dcc535/go.mod h1:oGkLhpf+kjZl6xBf758TQhh5XrAeiJv/7FRz/2spLIg= +github.com/asaskevich/govalidator v0.0.0-20200907205600-7a23bdc65eef/go.mod h1:WaHUgvxTVq04UNunO+XhnAqY/wQc+bxr74GqbsZ/Jqw= +github.com/aws/aws-sdk-go v1.34.28/go.mod h1:H7NKnBqNVzoTJpGfLrQkkD+ytBA93eiDYi/+8rV9s48= github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q= github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8= github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw= @@ -30,10 +47,13 @@ github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3Ee github.com/coreos/go-systemd/v22 v22.1.0/go.mod h1:xO0FLkIi5MaZafQlIrOotqXZ90ih+1atmu1JpKERPPk= github.com/coreos/go-systemd/v22 v22.2.0 h1:BBmbNtSc5PuUM3Byxs7yE5rLdxQO4/FMoEXY5Rle4GA= github.com/coreos/go-systemd/v22 v22.2.0/go.mod h1:xO0FLkIi5MaZafQlIrOotqXZ90ih+1atmu1JpKERPPk= +github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E= github.com/creack/pty v1.1.11/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E= github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/docker/go-units v0.3.3/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk= +github.com/docker/go-units v0.4.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk= github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk= github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= @@ -44,13 +64,123 @@ github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5Kwzbycv github.com/fatih/color v1.10.0 h1:s36xzo75JdqLaaWoiEHk767eHiwo0598uUxyfiPkDsg= github.com/fatih/color v1.10.0/go.mod h1:ELkj/draVOlAH/xkhN6mQ50Qd0MPOk5AAr3maGEBuJM= github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04= 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h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ= go.uber.org/atomic v1.7.0 h1:ADUqmZGgLDDfbSL9ZmPxKTybcoEYHgpYfELNoN+7hsw= go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc= @@ -202,8 +395,14 @@ go.uber.org/zap v1.16.0 h1:uFRZXykJGK9lLY4HtgSw44DnIcAM+kRBP7x5m+NpAOM= go.uber.org/zap v1.16.0/go.mod h1:MA8QOfq0BHJwdXa996Y4dYkAqRKB8/1K1QMMZVaNZjQ= golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4= golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= +golang.org/x/crypto v0.0.0-20190320223903-b7391e95e576/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= +golang.org/x/crypto v0.0.0-20190422162423-af44ce270edf/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE= golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= +golang.org/x/crypto v0.0.0-20190530122614-20be4c3c3ed5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= +golang.org/x/crypto v0.0.0-20190611184440-5c40567a22f8/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= +golang.org/x/crypto v0.0.0-20190617133340-57b3e21c3d56/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= +golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= golang.org/x/crypto v0.0.0-20210220033148-5ea612d1eb83 h1:/ZScEX8SfEmUGRHs0gxpqteO5nfNW6axyZbBdw9A12g= golang.org/x/crypto v0.0.0-20210220033148-5ea612d1eb83/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I= @@ -219,20 +418,29 @@ golang.org/x/mod v0.3.0 h1:RM4zey1++hCTbCVQfnWeKs9/IEsaBLA8vTkd0WVtmH4= golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= +golang.org/x/net v0.0.0-20181005035420-146acd28ed58/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20181201002055-351d144fa1fc/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= golang.org/x/net v0.0.0-20190313220215-9f648a60d977/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= +golang.org/x/net v0.0.0-20190320064053-1272bf9dcd53/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= golang.org/x/net v0.0.0-20190419010253-1f3472d942ba/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks= golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= +golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20191002035440-2ec189313ef0/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= +golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= +golang.org/x/net v0.0.0-20200602114024-627f9648deb9/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A= golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU= +golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU= +golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU= +golang.org/x/net v0.0.0-20201224014010-6772e930b67b/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= +golang.org/x/net v0.0.0-20210119194325-5f4716e94777/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= golang.org/x/net v0.0.0-20210226172049-e18ecbb05110 h1:qWPm9rbaAMKs8Bq/9LRpbMqxWRVUAQwMI9fVrssnTfw= golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U= @@ -240,6 +448,8 @@ golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4Iltr golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sync v0.0.0-20190412183630-56d357773e84/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= @@ -249,12 +459,17 @@ golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5h golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20190321052220-f7bb7a8bee54/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20190403152447-81d4e9dc473e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20190418153312-f0ce4c0180be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20190419153524-e8e3143a4f4a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20190523142557-0e01d883c5c5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20190531175056-4c3a928424d2/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20190606122018-79a91cf218c4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20190606203320-7fc4e5ec1444/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20190616124812-15dcb6c0061f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= @@ -262,6 +477,7 @@ golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7w golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200217220822-9197077df867/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20201009025420-dfb3f7c4e634/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= @@ -270,16 +486,25 @@ golang.org/x/sys v0.0.0-20210305230114-8fe3ee5dd75b/go.mod h1:h1NjWce9XRLGQEsW7w golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw= golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= +golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk= golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= +golang.org/x/text v0.3.4/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= golang.org/x/text v0.3.5 h1:i6eZZ+zk0SOf0xgBpEpPD18qWcJda6q1sxt3S0kzyUQ= golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= +golang.org/x/tools v0.0.0-20190125232054-d66bd3c5d5a6/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY= golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs= +golang.org/x/tools v0.0.0-20190329151228-23e29df326fe/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs= +golang.org/x/tools v0.0.0-20190416151739-9c9e1878f421/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs= +golang.org/x/tools v0.0.0-20190420181800-aa740d480789/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs= golang.org/x/tools v0.0.0-20190424220101-1e8e1cfdf96b/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q= golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q= +golang.org/x/tools v0.0.0-20190531172133-b3315ee88b7d/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc= +golang.org/x/tools v0.0.0-20190614205625-5aca471b1d59/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc= +golang.org/x/tools v0.0.0-20190617190820-da514acc4774/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc= golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc= golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= @@ -322,8 +547,9 @@ google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlba gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= -gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo= gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU= +gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI= gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= @@ -331,8 +557,14 @@ gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY= gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo= +gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM= diff --git a/pkg/alloc/alloc.go b/pkg/alloc/alloc.go deleted file mode 100644 index bbb7054..0000000 --- a/pkg/alloc/alloc.go +++ /dev/null @@ -1,113 +0,0 @@ -package alloc - -import ( - "context" - "fmt" - "net" - "strings" - "sync" - - "git.giftfish.de/ston1th/haproxy-lb/pkg/db" - "github.com/mikioh/ipaddr" -) - -type Alloc struct { - sync.Mutex - db *db.DB - pool []*net.IPNet - gateway *net.IPNet -} - -func NewAlloc(db *db.DB, cidrs []string, gateway string) (*Alloc, error) { - pool, err := parseRange(cidrs) - if err != nil { - return nil, err - } - _, gw, err := net.ParseCIDR(gateway) - if err != nil { - return nil, err - } - return &Alloc{db: db, pool: pool, gateway: gw}, nil -} - -func (a *Alloc) UpdateDB(db *db.DB) { - a.Lock() - a.db = db - a.Unlock() -} - -func (a *Alloc) cidr(ip net.IP) string { - gw := new(net.IPNet) - *gw = *a.gateway - gw.IP = ip - return gw.String() -} - -func (a *Alloc) AllocIP(ctx context.Context, name string) (addr string, err error) { - a.Lock() - defer a.Unlock() - for _, p := range a.pool { - c := ipaddr.NewCursor([]ipaddr.Prefix{*ipaddr.NewPrefix(p)}) - for pos := c.First(); pos != nil; pos = c.Next() { - cidr := a.cidr(pos.IP) - if !a.db.IPExists(cidr) { - err = a.db.SetIPName(cidr, name) - if err != nil { - return - } - addr = pos.IP.String() - return - } - } - } - err = fmt.Errorf("no more IPs available in pool") - return -} - -func (a *Alloc) FreeIP(ctx context.Context, name string) (err error) { - a.Lock() - defer a.Unlock() - if name == "" { - return - } - ip, err := a.db.GetIP(name) - if err != nil { - return - } - return a.db.DeleteIPName(ip, name) -} - -func parseRange(cidrs []string) (nets []*net.IPNet, err error) { - for _, cidr := range cidrs { - if !strings.Contains(cidr, "-") { - _, n, err := net.ParseCIDR(cidr) - if err != nil { - return nil, err - } - nets = append(nets, n) - continue - } - - fs := strings.SplitN(cidr, "-", 2) - if len(fs) != 2 { - return nil, fmt.Errorf("invalid IP range %q", cidr) - } - start := net.ParseIP(strings.TrimSpace(fs[0])) - if start == nil { - return nil, fmt.Errorf("invalid IP range %q: invalid start IP %q", cidr, fs[0]) - } - end := net.ParseIP(strings.TrimSpace(fs[1])) - if end == nil { - return nil, fmt.Errorf("invalid IP range %q: invalid end IP %q", cidr, fs[1]) - } - - for _, pfx := range ipaddr.Summarize(start, end) { - n := &net.IPNet{ - IP: pfx.IP, - Mask: pfx.Mask, - } - nets = append(nets, n) - } - } - return -} diff --git a/pkg/api/server.go b/pkg/api/server.go index 8cfb004..4d6be96 100644 --- a/pkg/api/server.go +++ b/pkg/api/server.go @@ -7,12 +7,13 @@ import ( "net/http" "time" - "git.giftfish.de/ston1th/haproxy-lb/pkg/alloc" "git.giftfish.de/ston1th/haproxy-lb/pkg/api/types" serverv1 "git.giftfish.de/ston1th/haproxy-lb/pkg/api/v1/server" "git.giftfish.de/ston1th/haproxy-lb/pkg/config" "git.giftfish.de/ston1th/haproxy-lb/pkg/db" + "git.giftfish.de/ston1th/netalloc" + "github.com/go-logr/logr" "github.com/gorilla/mux" ) @@ -23,9 +24,8 @@ type Server struct { mux *mux.Router log logr.Logger - Data *types.ContextData - cidrs []string - gw string + Data *types.ContextData + cidr string init chan struct{} stop chan struct{} @@ -46,11 +46,10 @@ func (nf *notFoundHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { // NewHTTPServer returns a new HTTPServer func NewServer(c *config.Config, log logr.Logger) (*Server, error) { s := &Server{ - mux: mux.NewRouter(), - log: log, - cidrs: c.VIP.VirtualIPs, - gw: c.VIP.Gateway, - Data: &types.ContextData{}, + mux: mux.NewRouter(), + log: log, + cidr: c.VIP.Prefix, + Data: &types.ContextData{}, init: make(chan struct{}), stop: make(chan struct{}), @@ -107,15 +106,15 @@ func NewServer(c *config.Config, log logr.Logger) (*Server, error) { func (s *Server) UpdateDB(db *db.DB) error { s.Data.DB = db - if s.Data.Alloc == nil { - alloc, err := alloc.NewAlloc(db, s.cidrs, s.gw) + if s.Data.Net == nil { + na, err := netalloc.NewGenericAlloc(db, s.cidr) if err != nil { return err } - s.Data.Alloc = alloc + s.Data.Net = na close(s.init) } else { - s.Data.Alloc.UpdateDB(db) + s.Data.Net.SetStore(db) } return nil } diff --git a/pkg/api/types/context.go b/pkg/api/types/context.go index dc16ee5..66bcbbb 100644 --- a/pkg/api/types/context.go +++ b/pkg/api/types/context.go @@ -8,14 +8,15 @@ import ( "github.com/go-logr/logr" "github.com/gorilla/mux" - "git.giftfish.de/ston1th/haproxy-lb/pkg/alloc" + "git.giftfish.de/ston1th/netalloc" + "git.giftfish.de/ston1th/haproxy-lb/pkg/db" ) type ContextData struct { - Alloc *alloc.Alloc - DB *db.DB - Auth *Auth + Net netalloc.Allocator + DB *db.DB + Auth *Auth } func NewContext(w http.ResponseWriter, r *http.Request, data *ContextData, log logr.Logger) *Context { diff --git a/pkg/api/v1/client/client.go b/pkg/api/v1/client/client.go index c206d7f..0c2b4b1 100644 --- a/pkg/api/v1/client/client.go +++ b/pkg/api/v1/client/client.go @@ -83,3 +83,16 @@ func (c *Client) DeleteLoadBalancer(ctx context.Context, cluster, name string) ( _, err = c.c.Do(req, nil) return } + +func (c *Client) DeleteLoadBalancersWithCluster(ctx context.Context, cluster string) (err error) { + if cluster == "" { + return errors.New("cluster value can not be empty") + } + path := base + "/lb/" + cluster + req, err := c.c.NewRequest(ctx, "DELETE", path, nil) + if err != nil { + return + } + _, err = c.c.Do(req, nil) + return +} diff --git a/pkg/api/v1/schema/schema.go b/pkg/api/v1/schema/schema.go index f7a1b6d..6990495 100644 --- a/pkg/api/v1/schema/schema.go +++ b/pkg/api/v1/schema/schema.go @@ -4,6 +4,7 @@ import ( "encoding/json" "errors" "fmt" + "sort" ) /* @@ -16,8 +17,15 @@ const Version = "v1" type LoadBalancer struct { Name string `json:"name,omitempty"` IP string `json:"ip,omitempty"` + CIDR string `json:"cidr,omitempty"` Options Options `json:"options,omitempty"` - Ports []Port `json:"ports,omitempty"` + Ports Ports `json:"ports,omitempty"` +} + +func NewLoadBalancerFromBytes(b []byte) (lb *LoadBalancer, err error) { + lb = new(LoadBalancer) + err = json.Unmarshal(b, lb) + return } type Options struct { @@ -29,16 +37,83 @@ type Options struct { } type Port struct { - Port int `json:"port,omitempty"` - Servers []Server `json:"servers,omitempty"` + Port int `json:"port,omitempty"` + Servers Servers `json:"servers,omitempty"` } +type Ports []Port + +func (p Ports) Len() int { return len(p) } +func (p Ports) Less(i, j int) bool { return p[i].Port < p[j].Port } +func (p Ports) Swap(i, j int) { p[i], p[j] = p[j], p[i] } + type Server struct { Name string `json:"name,omitempty"` IP string `json:"ip,omitempty"` Port int `json:"port,omitempty"` } +type Servers []Server + +func (s Servers) Len() int { return len(s) } +func (s Servers) Less(i, j int) bool { return s[i].Name < s[j].Name } +func (s Servers) Swap(i, j int) { s[i], s[j] = s[j], s[i] } + +func (o Servers) Equal(n Servers) bool { + if len(o) != len(n) { + return false + } + for i, v := range o { + if v.Name != n[i].Name || + v.IP != n[i].IP || + v.Port != n[i].Port { + return false + } + } + return true +} + +func (o Servers) ContainsIP(ip string) bool { + return o.IndexOfIP(ip) != -1 +} + +func (o Servers) IndexOfIP(ip string) int { + for i, v := range o { + if v.IP == ip { + return i + } + } + return -1 +} + +func (o Servers) RemoveByIP(ip string) Servers { + index := o.IndexOfIP(ip) + if index == -1 { + return o + } + return append(o[:index], o[index+1:]...) +} + +func (o Servers) ContainsName(name string) bool { + return o.IndexOfName(name) != -1 +} + +func (o Servers) IndexOfName(name string) int { + for i, v := range o { + if v.Name == name { + return i + } + } + return -1 +} +func (o Servers) RemoveByName(name string) Servers { + index := o.IndexOfName(name) + if index == -1 { + return o + } + return append(o[:index], o[index+1:]...) +} + func (lb LoadBalancer) ValidateClient() error { for i, p := range lb.Ports { if p.Port < 0 || p.Port > 65535 { @@ -66,7 +141,18 @@ func (lb LoadBalancer) ValidateServer() error { if lb.IP == "" { return errors.New("LoadBalancer.IP can not be empty") } - return lb.ValidateClient() + if lb.CIDR == "" { + return errors.New("LoadBalancer.CIDR can not be empty") + } + err := lb.ValidateClient() + if err != nil { + return err + } + sort.Sort(lb.Ports) + for _, p := range lb.Ports { + sort.Sort(p.Servers) + } + return nil } func (lb LoadBalancer) JSON() ([]byte, error) { diff --git a/pkg/api/v1/server/handler.go b/pkg/api/v1/server/handler.go index 1994dee..a251aa2 100644 --- a/pkg/api/v1/server/handler.go +++ b/pkg/api/v1/server/handler.go @@ -3,7 +3,6 @@ package server import ( //"golang.org/x/crypto/bcrypt" //"net/http" - "context" "encoding/json" "net" @@ -80,13 +79,14 @@ func lbHandler(ctx *types.Context) { return } lb.Name = lbname(cl, n) - cidr, err := ctx.Data.DB.GetIP(name) + cidr, err := ctx.Data.DB.GetCIDR(name) if err != nil && err != cluster.ErrKeyNotFound { ctx.Log.Error(err, "error getting existing loadbalancer ip", "cluster", cl, "name", n) ctx.Err(types.ErrISE) return } if cidr != "" { + lb.CIDR = cidr lb.IP, err = getIP(cidr) if err != nil { ctx.Log.Error(err, "error parsing existing ip", "cluster", cl, "name", n, "cidr", cidr) @@ -94,12 +94,14 @@ func lbHandler(ctx *types.Context) { return } } else { - lb.IP, err = ctx.Data.Alloc.AllocIP(context.Background(), name) + ip, err := ctx.Data.Net.Alloc() if err != nil { ctx.Log.Error(err, "error allocating ip for loadbalancer", "cluster", cl, "name", n) ctx.Err(types.ErrISE) return } + lb.IP = ip.IP.String() + lb.CIDR = ctx.Data.Net.CIDR(ip) } err = lb.ValidateServer() if err != nil { @@ -125,7 +127,13 @@ func lbHandler(ctx *types.Context) { ctx.Err(types.ErrNotFound) return } - err := ctx.Data.Alloc.FreeIP(context.Background(), name) + cidr, err := ctx.Data.DB.GetCIDR(name) + if err != nil && err != cluster.ErrKeyNotFound { + ctx.Log.Error(err, "error reading IP of loadbalancer", "cluster", cl, "name", n) + ctx.Err(types.ErrISE) + return + } + err = ctx.Data.Net.FreeCIDR(cidr) if err != nil && err != cluster.ErrKeyNotFound { ctx.Log.Error(err, "error freeing IP of loadbalancer", "cluster", cl, "name", n) ctx.Err(types.ErrISE) @@ -149,20 +157,45 @@ func lbList(lbs map[string][]byte) (m map[string]json.RawMessage) { return } -func lbClusterListHandler(ctx *types.Context) { +func lbClusterHandler(ctx *types.Context) { cl := ctx.Var("cluster") m, err := ctx.Data.DB.GetLBs(cl) if err != nil { - ctx.Log.Error(err, "error reading loadbalancers") + ctx.Log.Error(err, "error reading loadbalancers", "cluster", cl) ctx.Err(types.ErrISE) return } - ctx.JSON(lbList(m)) + switch ctx.Method() { + case "GET": + ctx.JSON(lbList(m)) + case "DELETE": + for name, _ := range m { + cidr, err := ctx.Data.DB.GetCIDR(name) + if err != nil && err != cluster.ErrKeyNotFound { + ctx.Log.Error(err, "error reading IP of loadbalancer", "cluster", cl, "name", name) + ctx.Err(types.ErrISE) + return + } + err = ctx.Data.Net.FreeCIDR(cidr) + if err != nil && err != cluster.ErrKeyNotFound { + ctx.Log.Error(err, "error freeing IP of loadbalancer", "cluster", cl, "name", name) + ctx.Err(types.ErrISE) + return + } + err = ctx.Data.DB.DeleteLB(name) + if err != nil { + ctx.Log.Error(err, "error deleting loadbalancer", "cluster", cl, "name", name) + ctx.Err(types.ErrISE) + return + } + } + ctx.OK() + } } func lbListHandler(ctx *types.Context) { m, err := ctx.Data.DB.GetLBs("") if err != nil { - ctx.Log.Error(err, "error reading loadbalancers") + ctx.Log.Error(err, "error reading loadbalancer clusters") ctx.Err(types.ErrISE) return } diff --git a/pkg/api/v1/server/routes.go b/pkg/api/v1/server/routes.go index 7298c38..8f7cd79 100644 --- a/pkg/api/v1/server/routes.go +++ b/pkg/api/v1/server/routes.go @@ -20,8 +20,8 @@ var Routes = []types.Route{ }, { v1 + "/lb/{cluster:[a-zA-Z0-9-]+$}", - authHandler(lbClusterListHandler), - []string{"GET"}, + authHandler(lbClusterHandler), + []string{"GET", "DELETE"}, }, { v1 + "/lb/{cluster:[a-zA-Z0-9-]+}/{name:[a-zA-Z0-9-_]+$}", diff --git a/pkg/config/config.go b/pkg/config/config.go index e488597..c0b5567 100644 --- a/pkg/config/config.go +++ b/pkg/config/config.go @@ -48,11 +48,8 @@ func Validate(c *Config) error { if c.HAProxyService == "" { c.HAProxyService = HAProxyService } - if len(c.VIP.VirtualIPs) == 0 { - return errors.New("missing server.virtualIPs config") - } - if c.VIP.Gateway == "" { - return errors.New("missing server.gateway config") + if c.VIP.Prefix == "" { + return errors.New("missing server.prefix config") } if c.LeaderHook != "" { if !filepath.IsAbs(c.LeaderHook) { @@ -154,10 +151,9 @@ type Server struct { } type VIP struct { - VirtualIPs []string `yaml:"virtualIPs"` - Gateway string `yaml:"gateway"` - Interface string `yaml:"interface,omitempty"` - Label string `yaml:"label,omitempty"` + Prefix string `yaml:"prefix"` + Interface string `yaml:"interface,omitempty"` + Label string `yaml:"label,omitempty"` } type BasicAuth struct { diff --git a/pkg/db/db.go b/pkg/db/db.go index 935c6bb..a1ea3ea 100644 --- a/pkg/db/db.go +++ b/pkg/db/db.go @@ -1,15 +1,19 @@ package db import ( + "sync" + + schemav1 "git.giftfish.de/ston1th/haproxy-lb/pkg/api/v1/schema" "git.giftfish.de/ston1th/haproxy-lb/pkg/cluster" ) type DB struct { + sync.Mutex kv cluster.KV } func New(kv cluster.KV) *DB { - return &DB{kv} + return &DB{kv: kv} } const ( @@ -20,12 +24,12 @@ const ( ) func (db *DB) GetIPs() (ips []string, err error) { - m, err := db.kv.GetPrefix(namePrefix) + m, err := db.kv.GetPrefix(ipPrefix) if err != nil { return } - for _, v := range m { - ips = append(ips, string(v)) + for k := range m { + ips = append(ips, k) } return } @@ -40,36 +44,18 @@ func (db *DB) GetDeletedIPs() (ips []string, err error) { } return } -func (db *DB) GetName(ip string) (string, error) { - v, err := db.kv.Get(ipPrefix + ip) - return string(v), err -} -func (db *DB) IPExists(ip string) bool { - _, err := db.GetName(ip) - return err == nil -} -func (db *DB) SetIPName(ip, name string) error { - err := db.kv.Set(ipPrefix+ip, []byte(name)) - if err != nil { - return err - } - return db.kv.Set(namePrefix+name, []byte(ip)) -} -func (db *DB) DeleteIPName(ip, name string) error { - err := db.kv.Delete(ipPrefix + ip) - if err != nil { - return err - } - err = db.kv.Delete(namePrefix + name) - if err != nil { - return err - } - return db.kv.Set(delPrefix+ip, nil) -} -func (db *DB) GetIP(name string) (string, error) { - v, err := db.kv.Get(namePrefix + name) - return string(v), err +func (db *DB) GetCIDR(name string) (cidr string, err error) { + b, err := db.GetLB(name) + if err != nil { + return + } + lb, err := schemav1.NewLoadBalancerFromBytes(b) + if err != nil { + return + } + cidr = lb.CIDR + return } func (db *DB) GetLBs(cl string) (lbs map[string][]byte, err error) { @@ -103,3 +89,21 @@ func (db *DB) SetLB(name string, lb []byte) error { func (db *DB) DeleteLB(name string) error { return db.kv.Delete(lbPrefix + name) } + +func (db *DB) Exists(key string) (bool, error) { + _, err := db.kv.Get(ipPrefix + key) + if err == cluster.ErrKeyNotFound { + return false, nil + } + return err == nil, err +} +func (db *DB) Add(key string) error { + return db.kv.Set(ipPrefix+key, nil) +} +func (db *DB) Delete(key string) error { + err := db.kv.Delete(ipPrefix + key) + if err != nil { + return err + } + return db.kv.Set(delPrefix+key, nil) +} diff --git a/pkg/haproxy/config.go b/pkg/haproxy/config.go index 365e67b..1394af9 100644 --- a/pkg/haproxy/config.go +++ b/pkg/haproxy/config.go @@ -29,6 +29,7 @@ func NewConfig(m map[string][]byte) (c Config, err error) { type LoadBalancer struct { Name string `json:"name"` IP string `json:"ip"` + CIDR string `json:"cidr"` Options Options `json:"options"` Ports []Port `json:"ports"` } diff --git a/pkg/haproxy/haproxy.go b/pkg/haproxy/haproxy.go index c7809ac..2da4970 100644 --- a/pkg/haproxy/haproxy.go +++ b/pkg/haproxy/haproxy.go @@ -10,9 +10,12 @@ import ( "os" "os/exec" "sync" + "syscall" "text/template" ) +const Nobody = 65534 + type ServiceManager interface { Reload(context.Context) error Status(context.Context) error @@ -21,6 +24,7 @@ type ServiceManager interface { } type HAProxyManager struct { + // protects config update sync.Mutex configFile string @@ -57,7 +61,24 @@ func (ha *HAProxyManager) checkConfig(ctx context.Context, lbs Config) (hash []b return } hash = h.Sum(nil) - out, err := exec.CommandContext(ctx, "haproxy", "-c", "-f", tmp.Name()).CombinedOutput() + err = os.Chmod(tmp.Name(), 0640) + if err != nil { + return + } + err = os.Chown(tmp.Name(), -1, Nobody) + if err != nil { + return + } + cmd := exec.CommandContext(ctx, "haproxy", "-c", "-f", tmp.Name()) + cmd.Dir = os.TempDir() + cmd.SysProcAttr = &syscall.SysProcAttr{ + Credential: &syscall.Credential{ + Uid: Nobody, + Gid: Nobody, + }, + Setsid: true, + } + out, err := cmd.CombinedOutput() if err != nil { err = fmt.Errorf("%s:%w", string(out), err) } diff --git a/pkg/vip/arp.go b/pkg/vip/arp.go index 4333498..12cae9f 100644 --- a/pkg/vip/arp.go +++ b/pkg/vip/arp.go @@ -1,3 +1,4 @@ +//go:build !linux // +build !linux package vip