├── README.md ├── conf └── app.conf ├── db.sql ├── go.mod ├── go.sum ├── initial └── db.go ├── main.go ├── models ├── init.go ├── rule.go └── source.go └── modules ├── manager.go ├── reloader.go ├── rule.go └── storage.go /README.md: -------------------------------------------------------------------------------- 1 | 2 | # 概要 3 | 4 | 延伸自 doraemon的 rule-engine，用于与 promethues-alertmanager 结合 5 | 6 | 目的是，为 AlertManager 加入动态规则 7 | 8 | ## 功能 9 | 10 | 自带DB表，定时(1 min)从DB中读取告警规则，到对应数据源(即 Prometheus 服务)执行查询，将触发的告警，发送给配置文件指定的 AlertManager 服务 11 | 12 | NOTE： 13 | 向 AlertManager 发送的 alert 消息，暂时还是 doraemon 协议格式的，应该需要少量改造 14 | 15 | 16 | -------------------------------------------------------------------------------- /conf/app.conf: -------------------------------------------------------------------------------- 1 | # basic 2 | appname = myruleengine 3 | httpaddr = 0.0.0.0 4 | httpport = 8081 5 | runmode = dev 6 | 7 | # mysql 8 | DBName = "myruleengine" 9 | DBTns = "tcp(39.100.133.126:32307)" 10 | DBUser = "root" 11 | DBPasswd = "123456" 12 | DBLoc = "Asia%2FShanghai" 13 | DBConnTTL = 30 14 | 15 | # 16 | AlertManagerUrl = "http://127.0.0.1:9093" -------------------------------------------------------------------------------- /db.sql: -------------------------------------------------------------------------------- 1 | DROP TABLE IF EXISTS `t_rule`; 2 | CREATE TABLE `t_rule` ( 3 | `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT "主键，报警规则ID", 4 | `expr` varchar(1023) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '' COMMENT "监控指标", 5 | `op` varchar(31) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '' COMMENT "比较符号", 6 | `value` varchar(31) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '' COMMENT "报警阈值", 7 | `for` varchar(1023) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '' COMMENT "持续时间", 8 | `overdue_value` tinyint(4) NOT NULL DEFAULT '30' COMMENT "告警失效时间(单位：分钟)", 9 | `summary` varchar(1023) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '' COMMENT "报警标题", 10 | `description` varchar(1023) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '' COMMENT "报警描述", 11 | `source_id` bigint(20) NOT NULL COMMENT "数据源ID", 12 | `create_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT "创建时间", 13 | `update_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT "最近更新时间", 14 | PRIMARY KEY (`id`) USING BTREE 15 | ) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Compact COMMENT "报警规则表"; 16 | 17 | 18 | DROP TABLE IF EXISTS `t_source`; 19 | CREATE TABLE `t_source` ( 20 | `id` bigint(20) NOT NULL AUTO_INCREMENT, 21 | `name` varchar(1023) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '', 22 | `url` varchar(1023) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '', 23 | `create_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT "创建时间", 24 | `update_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT "最近更新时间", 25 | PRIMARY KEY (`id`) USING BTREE 26 | ) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Compact; 27 | -------------------------------------------------------------------------------- /go.mod: -------------------------------------------------------------------------------- 1 | module myruleengine 2 | 3 | go 1.13 4 | 5 | require ( 6 | github.com/astaxie/beego v1.12.3 7 | github.com/go-kit/kit v0.10.0 8 | github.com/go-sql-driver/mysql v1.5.0 9 | github.com/pkg/errors v0.9.1 10 | github.com/prometheus/client_golang v1.8.0 11 | github.com/prometheus/common v0.15.0 12 | github.com/prometheus/prometheus v2.5.0+incompatible 13 | github.com/prometheus/tsdb v0.10.0 // indirect 14 | gopkg.in/yaml.v2 v2.4.0 15 | ) 16 | -------------------------------------------------------------------------------- /go.sum: -------------------------------------------------------------------------------- 1 | cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= 2 | cloud.google.com/go v0.34.0 h1:eOI3/cP2VTU6uZLDYAoic+eyzzB9YyGmJ7eIjl8rOPg= 3 | cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= 4 | github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= 5 | github.com/Knetic/govaluate v3.0.0+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0= 6 | github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0= 7 | github.com/OneOfOne/xxhash v1.2.2 h1:KMrpdQIwFcEqXDklaen+P1axHaj9BSKzvpUUfnHldSE= 8 | github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU= 9 | github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo= 10 | github.com/Shopify/toxiproxy 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h1:fHDIZ2oxGnUZRN6WgWFCbYBjH9uqVPRCUVUDhs0wnbA= 405 | golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= 406 | golang.org/x/net v0.0.0-20200625001655-4c5254603344 h1:vGXIOMxbNfDTk/aXCmfdLgkrSV+Z2tcbze+pEc3v5W4= 407 | golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA= 408 | golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U= 409 | golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421 h1:Wo7BWFiOk0QRFMLYMqJGFMd9CgUAcGx7V+qEg/h5IBI= 410 | golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw= 411 | golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= 412 | golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= 413 | golang.org/x/sync 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golang.org/x/sys v0.0.0-20181026203630-95b1ffbd15a5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 423 | golang.org/x/sys v0.0.0-20181107165924-66b7b1311ac8/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 424 | golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 425 | golang.org/x/sys v0.0.0-20181122145206-62eef0e2fa9b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 426 | golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 427 | golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 428 | golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 429 | golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 430 | golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 431 | golang.org/x/sys v0.0.0-20190826190057-c7b8b68b1456/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 432 | golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 433 | golang.org/x/sys v0.0.0-20191220142924-d4481acd189f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 434 | golang.org/x/sys v0.0.0-20200106162015-b016eb3dc98e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 435 | golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 436 | golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1 h1:ogLJMz+qpzav7lGMh10LMvAkM/fAoGlaiiHYiFYdm80= 437 | golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 438 | golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 439 | golang.org/x/sys v0.0.0-20201015000850-e3ed0017c211 h1:9UQO31fZ+0aKQOFldThf7BKPMJTiBfWycGh/u3UoO88= 440 | golang.org/x/sys v0.0.0-20201015000850-e3ed0017c211/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 441 | golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= 442 | golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs= 443 | golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk= 444 | golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ= 445 | golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ= 446 | golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= 447 | golang.org/x/tools v0.0.0-20180828015842-6cd1fcedba52/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= 448 | golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= 449 | golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= 450 | golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY= 451 | golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs= 452 | golang.org/x/tools v0.0.0-20190312170243-e65039ee4138/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs= 453 | golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs= 454 | golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q= 455 | golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc= 456 | golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= 457 | golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= 458 | golang.org/x/tools v0.0.0-20200103221440-774c71fcf114/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28= 459 | golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= 460 | golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= 461 | golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4= 462 | golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= 463 | google.golang.org/api v0.3.1 h1:oJra/lMfmtm13/rgY/8i3MzjFWYXvQIAKjQ3HqofMk8= 464 | google.golang.org/api v0.3.1/go.mod h1:6wY9I6uQWHQ8EM57III9mq/AjF+i8G65rmVagqKMtkk= 465 | google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM= 466 | google.golang.org/appengine v1.2.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4= 467 | google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4= 468 | google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc= 469 | google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE= 470 | google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE= 471 | google.golang.org/genproto v0.0.0-20190530194941-fb225487d101/go.mod h1:z3L6/3dTEVtUr6QSP8miRzeRqwQOioJ9I66odjN4I7s= 472 | google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55 h1:gSJIx1SDwno+2ElGhA4+qG2zF97qiUzTM+rQ0klBOcE= 473 | google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc= 474 | google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs= 475 | google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c= 476 | google.golang.org/grpc v1.20.0/go.mod h1:chYK+tFQF0nDUGJgXMSgLCQk3phJEuONr2DCgLDdAQM= 477 | google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38= 478 | google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM= 479 | google.golang.org/grpc v1.22.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg= 480 | google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg= 481 | google.golang.org/grpc v1.23.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg= 482 | google.golang.org/grpc v1.26.0 h1:2dTRdpdFEEhJYQD8EMLB61nnrzSCTbG38PhqdhvOltg= 483 | google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk= 484 | google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8= 485 | google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0= 486 | google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM= 487 | google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE= 488 | google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo= 489 | google.golang.org/protobuf v1.23.0 h1:4MY060fB1DLGMB/7MBTLnwQUY6+F09GEiz6SsrNqyzM= 490 | google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU= 491 | gopkg.in/alecthomas/kingpin.v2 v2.2.6 h1:jMFz6MfLP0/4fUyZle81rXUoxOBFi19VUFKVDOQfozc= 492 | gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw= 493 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 494 | gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 495 | gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo= 496 | gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 497 | gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU= 498 | gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 499 | gopkg.in/cheggaaa/pb.v1 v1.0.25/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qStrOgw= 500 | gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI= 501 | gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4= 502 | gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys= 503 | gopkg.in/gcfg.v1 v1.2.3/go.mod h1:yesOnuUOFQAhST5vPY4nbZsb/huCgGGXlipJsBn0b3o= 504 | gopkg.in/mgo.v2 v2.0.0-20190816093944-a6b53ec6cb22/go.mod h1:yeKp02qBN3iKW1OzL3MGk2IdtZzaj7SFntXj72NppTA= 505 | gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo= 506 | gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw= 507 | gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI= 508 | gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74= 509 | gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= 510 | gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= 511 | gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= 512 | gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= 513 | gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= 514 | gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= 515 | gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY= 516 | gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ= 517 | honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= 518 | honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= 519 | honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= 520 | honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg= 521 | sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o= 522 | sourcegraph.com/sourcegraph/appdash v0.0.0-20190731080439-ebfcffb1b5c0/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU= 523 | -------------------------------------------------------------------------------- /initial/db.go: -------------------------------------------------------------------------------- 1 | package initial 2 | 3 | import ( 4 | "database/sql" 5 | "fmt" 6 | "strings" 7 | "time" 8 | 9 | "github.com/astaxie/beego" 10 | "github.com/astaxie/beego/logs" 11 | "github.com/astaxie/beego/orm" 12 | "github.com/go-sql-driver/mysql" 13 | ) 14 | 15 | const DbDriverName = "mysql" 16 | 17 | func InitDb() { 18 | orm.RegisterDriver(DbDriverName, orm.DRMySQL) 19 | 20 | // ensure database exist 21 | err := ensureDatabase() 22 | if err != nil { 23 | panic(err) 24 | } 25 | db, err := orm.GetDB() 26 | if err != nil { 27 | panic(err) 28 | } 29 | ttl := beego.AppConfig.DefaultInt("DBConnTTL", 5) 30 | 31 | db.SetConnMaxLifetime(time.Duration(ttl) * time.Second) 32 | 33 | orm.Debug = beego.AppConfig.DefaultBool("ShowSql", false) 34 | } 35 | 36 | func ensureDatabase() error { 37 | needInit := false 38 | dbName := beego.AppConfig.String("DBName") 39 | dbURL := fmt.Sprintf("%s:%s@%s/", beego.AppConfig.String("DBUser"), 40 | beego.AppConfig.String("DBPasswd"), beego.AppConfig.String("DBTns")) 41 | fmt.Println(dbName, dbURL) 42 | db, err := sql.Open(DbDriverName, fmt.Sprintf("%s%s", dbURL, dbName)) 43 | if err != nil { 44 | return err 45 | } 46 | defer db.Close() 47 | err = db.Ping() 48 | if err != nil { 49 | switch e := err.(type) { 50 | case *mysql.MySQLError: 51 | // MySQL error unkonw database; 52 | // refer https://dev.mysql.com/doc/refman/5.6/en/error-messages-server.html 53 | const MysqlErrNum = 1049 54 | if e.Number == MysqlErrNum { 55 | needInit = true 56 | dbForCreateDatabase, err := sql.Open(DbDriverName, addLocation(dbURL)) 57 | if err != nil { 58 | return err 59 | } 60 | defer dbForCreateDatabase.Close() 61 | _, err = dbForCreateDatabase.Exec(fmt.Sprintf("CREATE DATABASE %s CHARACTER SET utf8 COLLATE utf8_general_ci;", dbName)) 62 | if err != nil { 63 | return err 64 | } 65 | 66 | } else { 67 | return err 68 | } 69 | default: 70 | return err 71 | } 72 | } 73 | 74 | // database created, maybe by DBA, but tables not created yet 75 | if !needInit { 76 | sql := fmt.Sprintf("show tables from %s;", dbName) 77 | if rows, err := db.Query(sql); err == nil && !rows.Next() { 78 | needInit = true 79 | } 80 | } 81 | 82 | logs.Debug("Initialize database connection: %s", strings.Replace(dbURL, beego.AppConfig.String("DBPasswd"), "****", 1)) 83 | 84 | err = orm.RegisterDataBase("default", "mysql", addLocation(fmt.Sprintf("%s%s", dbURL, dbName))) 85 | if err != nil { 86 | return err 87 | 88 | } 89 | if needInit { 90 | err = orm.RunSyncdb("default", false, true) 91 | if err != nil { 92 | return err 93 | } 94 | } 95 | return nil 96 | } 97 | 98 | func addLocation(dbURL string) string { 99 | // https://stackoverflow.com/questions/30074492/what-is-the-difference-between-utf8mb4-and-utf8-charsets-in-mysql 100 | return fmt.Sprintf("%s?charset=utf8mb4&loc=%s", dbURL, beego.AppConfig.DefaultString("DBLoc", "Asia%2FShanghai")) 101 | } 102 | -------------------------------------------------------------------------------- /main.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "fmt" 5 | "github.com/astaxie/beego" 6 | "myruleengine/initial" 7 | "os" 8 | "os/signal" 9 | "path/filepath" 10 | "syscall" 11 | 12 | "github.com/go-kit/kit/log/level" 13 | "github.com/pkg/errors" 14 | "github.com/prometheus/common/promlog" 15 | promlogflag "github.com/prometheus/common/promlog/flag" 16 | "gopkg.in/alecthomas/kingpin.v2" 17 | 18 | "myruleengine/modules" 19 | ) 20 | 21 | var ( 22 | // Version ... 23 | Version string = "develop" 24 | // Commit ... 25 | Commit string = "" 26 | // BuildTime ... 27 | BuildTime string = "" 28 | // BuildUser ... 29 | BuildUser string = "" 30 | ) 31 | 32 | func main() { 33 | 34 | cfg := modules.Config{ 35 | PromlogConfig: promlog.Config{}, 36 | GatewayURL: beego.AppConfig.String("AlertManagerUrl"), 37 | } 38 | 39 | a := kingpin.New(filepath.Base(os.Args[0]), "Rule Engine") 40 | 41 | a.HelpFlag.Short('h') 42 | 43 | a.Flag("gateway.url", "alert gateway url"). 44 | Default("http://localhost:8080").StringVar(&cfg.GatewayURL) 45 | a.Flag("gateway.path.notify", "alert gateway notify url"). 46 | Default("/api/v1/alerts").StringVar(&cfg.GatewayPathNotify) 47 | a.Flag("notify.retries", "notify retries"). 48 | Default("3").IntVar(&cfg.NotifyReties) 49 | a.Flag("evaluation.interval", "rule evaluation interval"). 50 | Default("15s").SetValue(&cfg.EvaluationInterval) 51 | a.Flag("reload.interval", "rule reload interval"). 52 | Default("5m").SetValue(&cfg.ReloadInterval) 53 | a.Flag("auth.token", "http auth token"). 54 | Default("96smhbNpRguoJOCEKNrMqQ").StringVar(&cfg.AuthToken) 55 | 56 | promlogflag.AddFlags(a, &cfg.PromlogConfig) 57 | 58 | _, err := a.Parse(os.Args[1:]) 59 | if err != nil { 60 | fmt.Fprintln(os.Stderr, errors.Wrapf(err, "Error parsing commandline arguments")) 61 | a.Usage(os.Args[1:]) 62 | os.Exit(2) 63 | } 64 | 65 | logger := promlog.New(&cfg.PromlogConfig) 66 | 67 | level.Info(logger).Log("version", Version, "commit", Commit, "build_time", BuildTime, "build_user", BuildUser) 68 | 69 | initial.InitDb() 70 | reloader := modules.NewReloader(logger, cfg) 71 | 72 | go func() { 73 | sigs := make(chan os.Signal, 1) 74 | signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM) 75 | sig := <-sigs 76 | level.Info(logger).Log("msg", "receive signal, stoping", "signal", sig) 77 | reloader.Stop() 78 | }() 79 | 80 | reloader.Run() 81 | reloader.Loop() 82 | 83 | level.Info(logger).Log("msg", "See you next time!") 84 | } 85 | -------------------------------------------------------------------------------- /models/init.go: -------------------------------------------------------------------------------- 1 | package models 2 | 3 | import ( 4 | "sync" 5 | 6 | "github.com/astaxie/beego/orm" 7 | ) 8 | 9 | var ( 10 | globalOrm orm.Ormer 11 | once sync.Once 12 | ) 13 | 14 | func init() { 15 | // init orm tables 16 | orm.RegisterModel( 17 | new(Rule), 18 | new(Source), 19 | ) 20 | 21 | } 22 | 23 | // singleton init ormer ,only use for normal db operation 24 | // if you begin transaction，please use orm.NewOrm() 25 | func Ormer() orm.Ormer { 26 | once.Do(func() { 27 | globalOrm = orm.NewOrm() 28 | }) 29 | return globalOrm 30 | } 31 | -------------------------------------------------------------------------------- /models/rule.go: -------------------------------------------------------------------------------- 1 | package models 2 | 3 | import ( 4 | "time" 5 | 6 | "github.com/astaxie/beego/logs" 7 | "github.com/astaxie/beego/orm" 8 | "github.com/pkg/errors" 9 | ) 10 | 11 | type Rule struct { 12 | Id int64 `orm:"column(id);auto" json:"id,omitempty"` 13 | Expr string `orm:"column(expr);size(1023)" json:"expr"` 14 | Op string `orm:"column(op);size(31)" json:"op"` 15 | Value string `orm:"column(value);size(1023)" json:"value"` 16 | For string `orm:"column(for);size(1023)" json:"for"` 17 | SourceId int64 `orm:"column(source_id);" json:"source_id"` 18 | Summary string `orm:"column(summary);size(1023)" json:"summary"` 19 | Description string `orm:"column(description);size(1023)" json:"description"` 20 | CreateTime *time.Time `json:"create_time"` 21 | UpdateTime *time.Time `json:"update_time"` 22 | } 23 | 24 | func (*Rule) TableName() string { 25 | return "t_rule" 26 | } 27 | 28 | func (t *Rule) Delete(id string) error { 29 | _, err := Ormer().Raw("DELETE FROM t_rule WHERE id = ?", id).Exec() 30 | return errors.Wrap(err, "database delete error") 31 | } 32 | 33 | func (t *Rule) Update() error { 34 | o := orm.NewOrm() 35 | _, err := o.Update(t) 36 | if err != nil { 37 | logs.Error("update rule error:%v", err) 38 | return errors.Wrap(err, "database update error") 39 | } 40 | 41 | return errors.Wrap(err, "database insert error") 42 | } 43 | 44 | func (t *Rule) Insert() error { 45 | o := orm.NewOrm() 46 | _, err := o.Insert(t) 47 | if err != nil { 48 | logs.Error("Insert rule error:%v", err) 49 | return errors.Wrap(err, "database insert error") 50 | } 51 | 52 | return errors.Wrap(err, "database insert error") 53 | } 54 | 55 | func (*Rule) Get(id string) Rule { 56 | ts := Rule{} 57 | qs := Ormer().QueryTable(new(Rule)) 58 | cond := orm.NewCondition() 59 | qs = qs.SetCond(cond.And("id__eq", id)) 60 | 61 | qs.Limit(-1).All(&ts) 62 | return ts 63 | } 64 | 65 | 66 | func (*Rule) Gets(pageNo int64, pageSize int64) []Rule{ 67 | ts := []Rule{} 68 | qs := Ormer().QueryTable(new(Rule)) 69 | 70 | // 处理完查询条件之后 71 | qs.Limit(pageSize).Offset((pageNo-1)*pageSize).All(&ts) 72 | 73 | return ts 74 | } 75 | 76 | func (*Rule) GetAll() []Rule{ 77 | ts := []Rule{} 78 | qs := Ormer().QueryTable(new(Rule)) 79 | qs.Limit(-1).All(&ts) 80 | return ts 81 | } -------------------------------------------------------------------------------- /models/source.go: -------------------------------------------------------------------------------- 1 | package models 2 | 3 | import ( 4 | "github.com/astaxie/beego/logs" 5 | "time" 6 | 7 | "github.com/astaxie/beego/orm" 8 | "github.com/pkg/errors" 9 | ) 10 | 11 | type Source struct { 12 | Id int64 `orm:"auto" json:"id,omitempty"` 13 | Name string `orm:"size(1023)" json:"name"` 14 | Url string `orm:"size(1023)" json:"url"` 15 | CreateTime *time.Time `json:"create_time"` 16 | UpdateTime *time.Time `json:"update_time"` 17 | } 18 | 19 | func (*Source) TableName() string { 20 | return "t_source" 21 | } 22 | 23 | func (t *Source) Delete(id string) error { 24 | _, err := Ormer().Raw("DELETE FROM t_rule WHERE id = ?", id).Exec() 25 | return errors.Wrap(err, "database delete error") 26 | } 27 | 28 | func (t *Source) Update() error { 29 | o := orm.NewOrm() 30 | _, err := o.Update(t) 31 | if err != nil { 32 | logs.Error("update rule error:%v", err) 33 | return errors.Wrap(err, "database update error") 34 | } 35 | 36 | return errors.Wrap(err, "database insert error") 37 | } 38 | 39 | func (t *Source) Insert() error { 40 | o := orm.NewOrm() 41 | _, err := o.Insert(t) 42 | if err != nil { 43 | logs.Error("Insert rule error:%v", err) 44 | return errors.Wrap(err, "database insert error") 45 | } 46 | 47 | return errors.Wrap(err, "database insert error") 48 | } 49 | 50 | func (*Source) Get(id string) Source { 51 | ts := Source{} 52 | qs := Ormer().QueryTable(new(Source)) 53 | cond := orm.NewCondition() 54 | qs = qs.SetCond(cond.And("id__eq", id)) 55 | 56 | qs.Limit(-1).All(&ts) 57 | return ts 58 | } 59 | 60 | 61 | func (*Source) Gets(pageNo int64, pageSize int64) []Source{ 62 | ts := []Source{} 63 | qs := Ormer().QueryTable(new(Source)) 64 | 65 | // 处理完查询条件之后 66 | qs.Limit(pageSize).Offset((pageNo-1)*pageSize).All(&ts) 67 | 68 | return ts 69 | } 70 | 71 | func (*Source) GetAll() []Source{ 72 | ts := []Source{} 73 | qs := Ormer().QueryTable(new(Source)) 74 | qs.Limit(-1).All(&ts) 75 | return ts 76 | } -------------------------------------------------------------------------------- /modules/manager.go: -------------------------------------------------------------------------------- 1 | package modules 2 | 3 | import ( 4 | "bytes" 5 | "context" 6 | "encoding/json" 7 | "fmt" 8 | "io/ioutil" 9 | "math" 10 | "myruleengine/models" 11 | "net/http" 12 | "net/url" 13 | "os" 14 | "path/filepath" 15 | "time" 16 | 17 | "github.com/go-kit/kit/log" 18 | "github.com/go-kit/kit/log/level" 19 | client_api "github.com/prometheus/client_golang/api" 20 | client_api_v1 "github.com/prometheus/client_golang/api/prometheus/v1" 21 | "github.com/prometheus/common/model" 22 | "github.com/prometheus/prometheus/pkg/labels" 23 | "github.com/prometheus/prometheus/promql" 24 | "github.com/prometheus/prometheus/rules" 25 | "github.com/prometheus/prometheus/util/strutil" 26 | ) 27 | 28 | // Manager ... 29 | type Manager struct { 30 | Config Config 31 | Source models.Source 32 | Options *rules.ManagerOptions 33 | Manager *rules.Manager 34 | Rules Rules 35 | 36 | logger log.Logger 37 | } 38 | 39 | type NotifyAlert struct { 40 | // Label value pairs for purpose of aggregation, matching, and disposition 41 | // dispatching. This must minimally include an "alertname" label. 42 | Labels labels.Labels `json:"labels"` 43 | 44 | // Extra key/value information which does not define alert identity. 45 | Annotations labels.Labels `json:"annotations"` 46 | 47 | // The known time range for this alert. Both ends are optional. 48 | StartsAt time.Time `json:"startsAt,omitempty"` 49 | EndsAt time.Time `json:"endsAt,omitempty"` 50 | GeneratorURL string `json:"generatorURL,omitempty"` 51 | } 52 | 53 | 54 | // NewManager ... 55 | func NewManager(ctx context.Context, logger log.Logger, 56 | source models.Source, config Config) (*Manager, error) { 57 | localStorage, err := NewMockStorage() 58 | if err != nil { 59 | return nil, err 60 | } 61 | 62 | options := &rules.ManagerOptions{ 63 | Appendable: localStorage, 64 | TSDB: localStorage, 65 | QueryFunc: HTTPQueryFunc( 66 | log.With(logger, "component", "http query func"), 67 | source.Url, 68 | ), 69 | NotifyFunc: HTTPNotifyFunc( 70 | log.With(logger, "component", "http notify func"), 71 | config.AuthToken, 72 | fmt.Sprintf("%s%s", config.GatewayURL, config.GatewayPathNotify), 73 | config.NotifyReties, 74 | source.Url, 75 | ), 76 | Context: ctx, 77 | ExternalURL: &url.URL{}, 78 | Registerer: nil, 79 | Logger: log.With(logger, "component", "rule manager"), 80 | OutageTolerance: time.Hour, // default 1h 81 | ForGracePeriod: 10 * time.Minute, // default 10m 82 | ResendDelay: time.Minute, // default 1m 83 | } 84 | manager := rules.NewManager(options) 85 | 86 | return &Manager{ 87 | Config: config, 88 | Source: source, 89 | Options: options, 90 | Manager: manager, 91 | Rules: Rules{}, 92 | 93 | logger: logger, 94 | }, nil 95 | } 96 | 97 | // Update ... 98 | func (m *Manager) Update(rules Rules) error { 99 | m.Rules = rules 100 | 101 | filepath := filepath.Join(os.TempDir(), fmt.Sprintf("rule.%d.yml", m.Source.Id)) 102 | 103 | content, err := rules.Content() 104 | if err != nil { 105 | level.Error(m.logger).Log("msg", "get source rule error", "error", err, "source_id", m.Source.Id) 106 | return err 107 | } 108 | 109 | err = ioutil.WriteFile(filepath, content, 0644) 110 | if err != nil { 111 | level.Error(m.logger).Log("msg", "write file error", "error", err, "source_id", m.Source.Id) 112 | return err 113 | } 114 | 115 | return m.Manager.Update(time.Duration(m.Config.EvaluationInterval), []string{filepath}) 116 | } 117 | 118 | // Run ... 119 | func (m *Manager) Run() { 120 | level.Info(m.logger).Log("msg", "start rule manager", "source_id", m.Source.Id) 121 | m.Manager.Run() 122 | } 123 | 124 | // Stop ... 125 | func (m *Manager) Stop() { 126 | level.Info(m.logger).Log("msg", "stop rule manager", "source_id", m.Source.Id) 127 | m.Manager.Stop() 128 | } 129 | 130 | // DebugNotifyFunc 131 | func DebugNotifyFunc(logger log.Logger) rules.NotifyFunc { 132 | return func(ctx context.Context, expr string, alerts ...*rules.Alert) { 133 | for _, i := range alerts { 134 | level.Debug(logger).Log( 135 | "msg", "send alert", 136 | "state", i.State.String(), 137 | "annotations", i.Annotations.String(), 138 | "labels", i.Labels.String(), 139 | ) 140 | } 141 | } 142 | } 143 | 144 | // Alert 145 | type Alert rules.Alert 146 | 147 | // MarshalJSON ... 148 | func (a *Alert) MarshalJSON() ([]byte, error) { 149 | for idx, i := range a.Labels { 150 | if i.Name == "alertname" { 151 | a.Labels = append(a.Labels[:idx], a.Labels[idx+1:]...) 152 | } 153 | } 154 | return json.Marshal(map[string]interface{}{ 155 | "state": a.State, 156 | "labels": a.Labels, 157 | "annotations": a.Annotations, 158 | "value": math.Round(a.Value*100) / 100, 159 | "active_at": a.ActiveAt, 160 | "fired_at": a.FiredAt, 161 | "resolved_at": a.ResolvedAt, 162 | "last_sent_at": a.LastSentAt, 163 | "valid_until": a.ValidUntil, 164 | }) 165 | } 166 | 167 | // HTTPNotifyFunc 168 | func HTTPNotifyFunc(logger log.Logger, token string, url string, retries int, sourceUrl string) rules.NotifyFunc { 169 | return func(ctx context.Context, expr string, alerts ...*rules.Alert) { 170 | if len(alerts) == 0 { 171 | return 172 | } 173 | 174 | var new []*NotifyAlert 175 | for _, alert := range alerts { 176 | a := &NotifyAlert{ 177 | StartsAt: alert.FiredAt, 178 | Labels: alert.Labels, 179 | Annotations: alert.Annotations, 180 | GeneratorURL: sourceUrl + strutil.TableLinkForExpression(expr), 181 | } 182 | if !alert.ResolvedAt.IsZero() { 183 | a.EndsAt = alert.ResolvedAt 184 | } else { 185 | a.EndsAt = alert.ValidUntil 186 | } 187 | new = append(new, a) 188 | } 189 | 190 | data, err := json.Marshal(new) 191 | if err != nil { 192 | level.Error(logger).Log("msg", "encode json error", "error", err, "alerts", alerts) 193 | return 194 | } 195 | level.Debug(logger).Log("msg", "encode alerts success", "json", data) 196 | 197 | for i := 1; i <= retries; i++ { 198 | client := http.Client{ 199 | Timeout: 5 * time.Second, // FIXME: timeout 200 | } 201 | req, _ := http.NewRequest("POST", url, bytes.NewReader(data)) 202 | req.Header.Add("Token", token) 203 | req.Header.Add("Content-Type", "application/json") 204 | resp, err := client.Do(req) 205 | if err != nil { 206 | level.Error(logger).Log("msg", "notify error", "url", url, "error", err, "retries", i) 207 | continue 208 | } 209 | if resp.StatusCode == 200 { 210 | level.Debug(logger).Log("msg", "notify success", "url", url) 211 | break 212 | } 213 | level.Error(logger).Log("msg", "notify error", "url", url, "status", resp.StatusCode, "retries", i) 214 | } 215 | } 216 | } 217 | 218 | // HTTPQueryFunc 219 | // TODO: use http keep-alive 220 | func HTTPQueryFunc(logger log.Logger, url string) rules.QueryFunc { 221 | client, _ := client_api.NewClient(client_api.Config{ 222 | Address: url, 223 | }) 224 | api := client_api_v1.NewAPI(client) 225 | return func(ctx context.Context, q string, t time.Time) (promql.Vector, error) { 226 | vector := promql.Vector{} 227 | 228 | // Query from Prometheus 229 | value, _, err := api.Query(ctx, q, t) 230 | if err != nil { 231 | return vector, err 232 | } 233 | switch value.Type() { 234 | case model.ValVector: 235 | for _, i := range value.(model.Vector) { 236 | l := labels.Labels{} 237 | for k, v := range i.Metric { 238 | l = append(l, labels.Label{ 239 | Name: string(k), 240 | Value: string(v), 241 | }) 242 | } 243 | vector = append(vector, promql.Sample{ 244 | Point: promql.Point{ 245 | T: int64(i.Timestamp), 246 | V: float64(i.Value), 247 | }, 248 | Metric: l, 249 | }) 250 | } 251 | level.Debug(logger).Log( 252 | "msg", "query vector seccess", 253 | "query", q, 254 | "vector", vector, 255 | ) 256 | return vector, nil 257 | default: 258 | // TODO: other type: "matrix" | "vector" | "scalar" | "string", 259 | return vector, fmt.Errorf("unknown result type [%s] query=[%s]", value.Type().String(), q) 260 | } 261 | } 262 | } 263 | -------------------------------------------------------------------------------- /modules/reloader.go: -------------------------------------------------------------------------------- 1 | package modules 2 | 3 | import ( 4 | "context" 5 | "myruleengine/models" 6 | "time" 7 | 8 | "github.com/go-kit/kit/log" 9 | "github.com/go-kit/kit/log/level" 10 | "github.com/prometheus/common/model" 11 | "github.com/prometheus/common/promlog" 12 | ) 13 | 14 | // Config ... 15 | type Config struct { 16 | NotifyReties int 17 | GatewayURL string 18 | GatewayPathNotify string 19 | EvaluationInterval model.Duration 20 | ReloadInterval model.Duration 21 | AuthToken string 22 | 23 | PromlogConfig promlog.Config 24 | } 25 | 26 | // Reloader ... 27 | type Reloader struct { 28 | config Config 29 | managers []*Manager 30 | logger log.Logger 31 | context context.Context 32 | cancel context.CancelFunc 33 | running bool 34 | } 35 | 36 | // NewReloader ... 37 | func NewReloader(logger log.Logger, cfg Config) *Reloader { 38 | ctx, cancel := context.WithCancel(context.Background()) 39 | 40 | reloader := Reloader{ 41 | config: cfg, 42 | 43 | logger: logger, 44 | context: ctx, 45 | cancel: cancel, 46 | running: false, 47 | } 48 | 49 | return &reloader 50 | } 51 | 52 | // Run rule manager 53 | func (r *Reloader) Run() { 54 | r.running = true 55 | for _, i := range r.managers { 56 | i.Run() 57 | } 58 | } 59 | 60 | // Stop rule manager 61 | func (r *Reloader) Stop() { 62 | r.running = false 63 | r.cancel() 64 | for _, i := range r.managers { 65 | i.Stop() 66 | } 67 | 68 | } 69 | 70 | // download the rules and update rule manager 71 | func (r *Reloader) Update() error { 72 | level.Debug(r.logger).Log("msg", "start update rule") 73 | 74 | sourceRules, err := r.getSourceRules() 75 | if err != nil { 76 | return err 77 | } 78 | 79 | // stop invalid manager 80 | for idx, m := range r.managers { 81 | del := true 82 | for _, p := range sourceRules { 83 | if m.Source.Id == p.Source.Id && m.Source.Url == p.Source.Url && p.Source.Url != "" { 84 | del = false 85 | } 86 | } 87 | if del { 88 | level.Info(r.logger).Log("msg", "source not exist, delete manager", "source_id", m.Source.Id, "source_url", m.Source.Url) 89 | m.Stop() 90 | 91 | if idx+1 <= len(r.managers) { 92 | r.managers = append(r.managers[:idx], r.managers[idx+1:]...) 93 | } else { 94 | r.managers = r.managers[:idx] 95 | } 96 | } 97 | } 98 | 99 | // update rules 100 | for _, p := range sourceRules { 101 | if p.Source.Url == "" { 102 | level.Error(r.logger).Log("msg", "source url is null", "source_id", p.Source.Id, "source_url", p.Source.Url) 103 | continue 104 | } 105 | var manager *Manager 106 | for _, m := range r.managers { 107 | if m.Source.Id == p.Source.Id && m.Source.Url == p.Source.Url && p.Source.Url != "" { 108 | manager = m 109 | } 110 | } 111 | if manager == nil { 112 | m, err := NewManager(r.context, r.logger, p.Source, r.config) 113 | if err != nil { 114 | level.Error(r.logger).Log("msg", "create manager error", "error", err, "source_id", manager.Source.Id, "source_url", manager.Source.Url) 115 | return err 116 | } 117 | m.Run() 118 | manager = m 119 | r.managers = append(r.managers, manager) 120 | } 121 | if manager != nil { 122 | err := manager.Update(p.Rules) 123 | if err != nil { 124 | level.Error(r.logger).Log("msg", "update rule error", "error", err, "source_id", manager.Source.Id, "source_url", manager.Source.Url) 125 | } else { 126 | level.Info(r.logger).Log("msg", "update rule success", "len", len(p.Rules), "source_id", manager.Source.Id, "source_url", manager.Source.Url) 127 | } 128 | } 129 | } 130 | 131 | level.Debug(r.logger).Log("msg", "end update rule") 132 | return nil 133 | } 134 | 135 | // Loop for checking the rules 136 | func (r *Reloader) Loop() { 137 | for r.running { 138 | r.Update() 139 | 140 | select { 141 | case <-r.context.Done(): 142 | case <-time.After(time.Duration(r.config.ReloadInterval)): 143 | } 144 | } 145 | } 146 | 147 | func (r *Reloader) getSourceRules() ([]SourceRules, error) { 148 | data := []SourceRules{} 149 | 150 | var ruleModel models.Rule 151 | rules := ruleModel.GetAll() 152 | level.Info(r.logger).Log("msg", "Number of rules ",len(rules)) 153 | 154 | 155 | var sourceModel models.Source 156 | sources := sourceModel.GetAll() 157 | level.Info(r.logger).Log("msg", "Number of sources ",len(sources)) 158 | 159 | 160 | data = r.genSourceRules(rules) 161 | 162 | //fill in url 163 | for idx, i := range data { 164 | for _, j := range sources { 165 | if i.Source.Id == j.Id { 166 | data[idx].Source.Url = j.Url 167 | break 168 | } 169 | } 170 | } 171 | 172 | return data, nil 173 | } 174 | 175 | 176 | // SourceRules cut source rules 177 | func (r *Reloader) genSourceRules(rules []models.Rule) []SourceRules { 178 | tmp := map[int64]Rules{} 179 | 180 | for _, rule := range rules { 181 | if v, ok := tmp[rule.SourceId]; ok { 182 | tmp[rule.SourceId] = append(v, rule) 183 | } else { 184 | tmp[rule.SourceId] = Rules{rule} 185 | } 186 | } 187 | 188 | data := []SourceRules{} 189 | for id, rules := range tmp { 190 | data = append(data, SourceRules{ 191 | Source: models.Source{Id: id}, 192 | Rules: rules, 193 | }) 194 | } 195 | 196 | return data 197 | } -------------------------------------------------------------------------------- /modules/rule.go: -------------------------------------------------------------------------------- 1 | package modules 2 | 3 | import ( 4 | "gopkg.in/yaml.v2" 5 | "myruleengine/models" 6 | "strconv" 7 | "strings" 8 | ) 9 | 10 | // M is map 11 | type M map[string]interface{} 12 | 13 | // S is slice 14 | type S []interface{} 15 | 16 | type Rules []models.Rule 17 | 18 | type SourceRules struct { 19 | Source models.Source 20 | Rules Rules 21 | } 22 | 23 | // RulesResp ... 24 | type RulesResp struct { 25 | Code int `json:"code"` 26 | Msg string `json:"msg"` 27 | Data Rules `json:"data"` 28 | } 29 | 30 | // SourceResp ... 31 | type SourceResp struct { 32 | Code int `json:"code"` 33 | Msg string `json:"msg"` 34 | Data []models.Source `json:"data"` 35 | } 36 | 37 | // Content get prom rules 38 | func (r Rules) Content() ([]byte, error) { 39 | rules := S{} 40 | for _, i := range r { 41 | rules = append(rules, M{ 42 | "alert": strconv.FormatInt(i.Id, 10), 43 | "expr": strings.Join([]string{i.Expr, i.Op, i.Value}, " "), 44 | "for": i.For, 45 | //"labels": i.Labels, 46 | "annotations": M{ 47 | "rule_id": strconv.FormatInt(i.Id, 10), 48 | "source_id": strconv.FormatInt(i.SourceId, 10), 49 | "summary": i.Summary, 50 | "description": i.Description, 51 | }, 52 | }) 53 | } 54 | result := M{ 55 | "groups": S{ 56 | M{ 57 | "name": "ruleengine", 58 | "rules": rules, 59 | }, 60 | }, 61 | } 62 | 63 | return yaml.Marshal(result) 64 | } 65 | -------------------------------------------------------------------------------- /modules/storage.go: -------------------------------------------------------------------------------- 1 | package modules 2 | 3 | import ( 4 | "io/ioutil" 5 | "os" 6 | "time" 7 | 8 | "github.com/prometheus/common/model" 9 | "github.com/prometheus/prometheus/storage" 10 | "github.com/prometheus/prometheus/storage/tsdb" 11 | ) 12 | 13 | // MockStorage temporary storage 14 | type MockStorage struct { 15 | storage.Storage 16 | dir string 17 | } 18 | 19 | // Close delete temporary files when closed 20 | func (s MockStorage) Close() error { 21 | if err := s.Storage.Close(); err != nil { 22 | return err 23 | } 24 | return os.RemoveAll(s.dir) 25 | } 26 | 27 | // NewMockStorage create temporary storage 28 | func NewMockStorage() (storage.Storage, error) { 29 | dir, err := ioutil.TempDir("", "mock_storage_") 30 | if err != nil { 31 | return nil, err 32 | } 33 | 34 | db, err := tsdb.Open(dir, nil, nil, &tsdb.Options{ 35 | MinBlockDuration: model.Duration(2 * time.Hour), 36 | MaxBlockDuration: model.Duration(24 * time.Hour), 37 | //RetentionDuration: model.Duration(15 * 24 * time.Hour), 38 | }) 39 | if err != nil { 40 | return nil, err 41 | } 42 | 43 | return MockStorage{Storage: tsdb.Adapter(db, int64(0)), dir: dir}, nil 44 | } 45 | --------------------------------------------------------------------------------