diff --git a/.woodpecker.yml b/.woodpecker.yml new file mode 100644 index 0000000..8d37d4c --- /dev/null +++ b/.woodpecker.yml @@ -0,0 +1,37 @@ +steps: + test: + image: golang:1.21 + commands: + - go test ./... + when: + event: + - push + - pull_request + build: + image: woodpeckerci/plugin-docker-buildx + settings: + platforms: linux/arm64/v8 + repo: lerentis/metallb-ip-floater + tags: + - latest + - ${CI_COMMIT_SHA} + dry-run: true + when: + event: + - push + - pull_request + notify: + image: appleboy/drone-telegram + settings: + message: "Commit {{ commit.message }} ({{ commit.link }}) ran with build {{ build.number }} and finished with status {{ build.status }}." + to: + from_secret: telegram_userid + token: + from_secret: telegram_secret + when: + status: + - failure + - success + event: + - push + - pull_request diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 0000000..546d439 --- /dev/null +++ b/Dockerfile @@ -0,0 +1,18 @@ +FROM golang:1.21 as build + +WORKDIR /app + +COPY . . + +RUN go mod tidy && CGO_ENABLED=0 GOOS=linux go build -a -tags netgo -ldflags '-w -extldflags "-static"' -o woodpecker-autoscaler ./cmd/ + +FROM scratch + +COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt +COPY --from=build /etc/passwd /etc/passwd +COPY --from=build /etc/group /etc/group +COPY --from=build --chown=65534:65534 /app/woodpecker-autoscaler /usr/local/bin/woodpecker-autoscaler + +USER nobody + +ENTRYPOINT ["/usr/local/bin/woodpecker-autoscaler"] diff --git a/cmd/woodpecker-autoscaler.go b/cmd/woodpecker-autoscaler.go new file mode 100644 index 0000000..22d5d2d --- /dev/null +++ b/cmd/woodpecker-autoscaler.go @@ -0,0 +1,38 @@ +package main + +import ( + "fmt" + "time" + + "git.uploadfilter24.eu/covidnetes/woodpecker-autoscaler/internal/config" + "git.uploadfilter24.eu/covidnetes/woodpecker-autoscaler/internal/health" + "git.uploadfilter24.eu/covidnetes/woodpecker-autoscaler/internal/logging" + log "github.com/sirupsen/logrus" +) + +func main() { + + cfg, err := config.GenConfig() + logging.ConfigureLogger(cfg) + + if err != nil { + log.WithFields(log.Fields{ + "Caller": "Main", + }).Fatal(fmt.Sprintf("Error generating Config: %s", err.Error())) + } + + go func() { + log.WithFields(log.Fields{ + "Caller": "Main", + }).Info("Starting Health Endpoint") + health.StartHealthEndpoint() + }() + + log.WithFields(log.Fields{ + "Caller": "Main", + }).Info("Entering main event loop") + + for { + time.Sleep(time.Duration(cfg.CheckInterval) * time.Minute) + } +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..4aa429d --- /dev/null +++ b/go.mod @@ -0,0 +1,15 @@ +module git.uploadfilter24.eu/covidnetes/woodpecker-autoscaler + +go 1.21.1 + +require ( + github.com/gorilla/mux v1.8.0 + github.com/jinzhu/configor v1.2.1 + github.com/sirupsen/logrus v1.9.3 +) + +require ( + github.com/BurntSushi/toml v0.3.1 // indirect + golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 // indirect + gopkg.in/yaml.v2 v2.2.2 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..05c5af2 --- /dev/null +++ b/go.sum @@ -0,0 +1,24 @@ +github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ= +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +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/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI= +github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So= +github.com/jinzhu/configor v1.2.1 h1:OKk9dsR8i6HPOCZR8BcMtcEImAFjIhbJFZNyn5GCZko= +github.com/jinzhu/configor v1.2.1/go.mod h1:nX89/MOmDba7ZX7GCyU/VIaQ2Ar2aizBl2d3JLF/rDc= +github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= +github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= +github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ= +github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ= +github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= +github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY= +github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= +golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 h1:0A+M6Uqn+Eje4kHMK80dtF3JCXC4ykBgQG4Fe06QRhQ= +golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM= +gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw= +gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= diff --git a/internal/config/config.go b/internal/config/config.go new file mode 100644 index 0000000..1eaf563 --- /dev/null +++ b/internal/config/config.go @@ -0,0 +1,38 @@ +package config + +import ( + "errors" + "fmt" + "time" + + "github.com/jinzhu/configor" +) + +type Config = struct { + LogLevel string `default:"Info" env:"WOODPECKER_AUTOSCALER_LOGLEVEL"` + CheckInterval int `default:"15" env:"WOODPECKER_AUTOSCALER_CHECK_INTERVAL"` + LabelSelector string `default:"uploadfilter24.eu/instance-role=Woodpecker" env:"WOODPECKER_AUTOSCALER_LABELSELECTOR"` + WoodpeckerInstance string `default:"" env:"WOODPECKER_AUTOSCALER_WOODPECKER_INSTANCE"` + WoodpeckerAgentSecret string `default:"" env:"WOODPECKER_AUTOSCALER_WOODPECKER_AGENT_SECRET"` + Protocol string `default:"http" env:"WOODPECKER_AUTOSCALER_PROTOCOL"` + HcloudToken string `default:"" env:"WOODPECKER_AUTOSCALER_HCLOUD_TOKEN"` + InstanceType string `default:"" env:"WOODPECKER_AUTOSCALER_INSTANCE_TYPE"` + Zone string `default:"" env:"WOODPECKER_AUTOSCALER_ZONE"` + DryRun bool `default:"false" env:"WOODPECKER_AUTOSCALER_DRY_RUN"` + SSHKey string `default:"" env:"WOODPECKER_AUTOSCALER_SSH_KEY"` +} + +func GenConfig() (cfg *Config, err error) { + + cfg = &Config{} + + err = configor.New(&configor.Config{ + ENVPrefix: "WOODPECKER_AUTOSCALER", + AutoReload: true, + Silent: true, + AutoReloadInterval: time.Minute}).Load(cfg, "config.json") + if err != nil { + return nil, errors.New(fmt.Sprintf("Error generating Config: %s", err.Error())) + } + return cfg, nil +} diff --git a/internal/health/healthcheck.go b/internal/health/healthcheck.go new file mode 100644 index 0000000..f945381 --- /dev/null +++ b/internal/health/healthcheck.go @@ -0,0 +1,31 @@ +package health + +import ( + "fmt" + "net/http" + + "github.com/gorilla/mux" + log "github.com/sirupsen/logrus" +) + +func StartHealthEndpoint() { + r := mux.NewRouter() + r.Use(mux.CORSMethodMiddleware(r)) + r.HandleFunc("/health", send200).Methods(http.MethodGet) + err := http.ListenAndServe("0.0.0.0:8080", r) + if err != nil { + log.WithFields(log.Fields{ + "Caller": "StartHealthEndpoint", + }).Error(fmt.Sprintf("Error creating health endpoint: %s", err.Error())) + } +} + +func send200(w http.ResponseWriter, r *http.Request) { + w.WriteHeader(http.StatusOK) + _, err := w.Write([]byte{}) + if err != nil { + log.WithFields(log.Fields{ + "Caller": "send200", + }).Error(fmt.Sprintf("Error answering health endpoint: %s", err.Error())) + } +} diff --git a/internal/hetzner/hetzneragent.go b/internal/hetzner/hetzneragent.go new file mode 100644 index 0000000..2357b2f --- /dev/null +++ b/internal/hetzner/hetzneragent.go @@ -0,0 +1,55 @@ +package hetzner + +import ( + "os" + "text/template" + + "git.uploadfilter24.eu/covidnetes/woodpecker-autoscaler/internal/config" +) + +var USER_DATA_TEMPLATE = ` +write_files: +- content: | + # docker-compose.yml + version: '3' + + services: + + woodpecker-agent: + image: {{ .Image }} + command: agent + restart: always + volumes: + - /var/run/docker.sock:/var/run/docker.sock + environment: + {{- range $key, $val := .EnvConfig }} + - {{ $key }}: {{ $val }} + {{- end }} + path: /root/docker-compose.yml +runcmd: +- [ sh, -xc, "cd /root; docker run --rm --privileged multiarch/qemu-user-static --reset -p yes; docker compose up -d" ] +` + +type UserDataConfig struct { + Image string + EnvConfig map[string]string +} + +func generateConfig(cfg *config.Config) { + envConfig := map[string]string{} + envConfig["WOODPECKER_SERVER"] = cfg.WoodpeckerInstance + envConfig["WOODPECKER_AGENT_SECRET"] = cfg.WoodpeckerAgentSecret + envConfig["WOODPECKER_FILTER_LABELS"] = cfg.LabelSelector + config := UserDataConfig{ + Image: "woodpeckerci/woodpecker-agent:latest", + EnvConfig: envConfig, + } + tmpl, err := template.New("test").Parse(USER_DATA_TEMPLATE) + if err != nil { + panic(err) + } + err = tmpl.Execute(os.Stdout, config) + if err != nil { + panic(err) + } +} diff --git a/internal/logging/logging.go b/internal/logging/logging.go new file mode 100644 index 0000000..871543a --- /dev/null +++ b/internal/logging/logging.go @@ -0,0 +1,28 @@ +package logging + +import ( + "os" + + "git.uploadfilter24.eu/covidnetes/woodpecker-autoscaler/internal/config" + log "github.com/sirupsen/logrus" +) + +func ConfigureLogger(cfg *config.Config) { + + switch cfg.LogLevel { + case "Debug": + log.SetLevel(log.DebugLevel) + case "Info": + log.SetLevel(log.InfoLevel) + case "Warn": + log.SetLevel(log.WarnLevel) + case "Error": + log.SetLevel(log.ErrorLevel) + default: + log.SetLevel(log.InfoLevel) + log.Warnf("Home: invalid log level supplied: '%s'", cfg.LogLevel) + } + + log.SetFormatter(&log.JSONFormatter{}) + log.SetOutput(os.Stdout) +} diff --git a/internal/woodpecker/metrics.go b/internal/woodpecker/metrics.go new file mode 100644 index 0000000..ea3f8e4 --- /dev/null +++ b/internal/woodpecker/metrics.go @@ -0,0 +1,7 @@ +package woodpecker + +import "git.uploadfilter24.eu/covidnetes/woodpecker-autoscaler/internal/config" + +func GetPendingJobs(cfg *config.Config) { + +}