From b2dc7dbd5723bb26e6a784d74c3448b92060e468 Mon Sep 17 00:00:00 2001 From: garionion Date: Sat, 14 Aug 2021 18:36:10 +0200 Subject: [PATCH] first prototype --- Dockerfile | 6 ++- README.md | 8 +++- go.mod | 1 + go.sum | 100 +++++++++++++++++++++++++++++++++++++++++++++-- main.go | 29 ++++++++++---- plugin/plugin.go | 40 ++++++++++++------- repo/repo.go | 90 ++++++++++++++++++++++++++++++++++++++++++ 7 files changed, 243 insertions(+), 31 deletions(-) create mode 100644 repo/repo.go diff --git a/Dockerfile b/Dockerfile index d8dbc5c..0966799 100644 --- a/Dockerfile +++ b/Dockerfile @@ -1,8 +1,10 @@ -FROM alpine:3.6 as alpine +FROM alpine:3.14.1 as alpine + RUN apk add -U --no-cache ca-certificates -FROM alpine:3.6 +FROM alpine:3.14.1 EXPOSE 3000 +LABEL maintainer="dockerhub@enderware.de" ENV GODEBUG netdns=go diff --git a/README.md b/README.md index 8eaac9f..ff77b40 100644 --- a/README.md +++ b/README.md @@ -1,4 +1,6 @@ -A config extension to Server to deliver drone files for repositories where you can't put a drone file in. _Please note this project requires Drone server version 1.4 or higher._ +A config extension to Server to deliver drone files for repositories where you can't put a drone file in. + +_Please note this project requires Drone server version 1.4 or higher._ ## Installation @@ -29,7 +31,9 @@ DRONE_YAML_SECRET=bea26a2221fd8090ea38720fc445eca6 ## Testing -Use the command line tools to test your extension. _This extension uses http-signatures to authorize client access and will reject unverified requests. You will be unable to test this extension using a simple curl command._ +Use the command line tools to test your extension. + +_This extension uses http-signatures to authorize client access and will reject unverified requests. You will be unable to test this extension using a simple curl command._ ```text export DRONE_YAML_ENDPOINT=http://1.2.3.4:3000 diff --git a/go.mod b/go.mod index d7d27c9..e2f5ed2 100644 --- a/go.mod +++ b/go.mod @@ -4,6 +4,7 @@ go 1.12 require ( github.com/drone/drone-go v1.0.6 + github.com/go-git/go-git/v5 v5.4.2 github.com/joho/godotenv v1.3.0 github.com/kelseyhightower/envconfig v1.4.0 github.com/sirupsen/logrus v1.4.2 diff --git a/go.sum b/go.sum index c4d356b..f9d7336 100644 --- a/go.sum +++ b/go.sum @@ -1,23 +1,115 @@ github.com/99designs/httpsignatures-go v0.0.0-20170731043157-88528bf4ca7e h1:rl2Aq4ZODqTDkeSqQBy+fzpZPamacO1Srp8zq7jf2Sc= github.com/99designs/httpsignatures-go v0.0.0-20170731043157-88528bf4ca7e/go.mod h1:Xa6lInWHNQnuWoF0YPSsx+INFA9qk7/7pTjwb3PInkY= +github.com/Microsoft/go-winio v0.4.14/go.mod h1:qXqCSQ3Xa7+6tgxaGTIe4Kpcdsi+P8jBhyzoq1bpyYA= +github.com/Microsoft/go-winio v0.4.16 h1:FtSW/jqD+l4ba5iPBj9CODVtgfYAD8w2wS923g/cFDk= +github.com/Microsoft/go-winio 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h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= diff --git a/main.go b/main.go index e403d26..adbb9a6 100644 --- a/main.go +++ b/main.go @@ -6,6 +6,7 @@ package main import ( "net/http" + "time" "git.entr0py.de/garionion/drone-yaml-server/plugin" "github.com/drone/drone-go/plugin/config" @@ -21,10 +22,10 @@ type spec struct { Debug bool `envconfig:"DRONE_DEBUG"` Secret string `envconfig:"DRONE_SECRET"` - // TODO replace or remove these configuration - // parameters. They are for demo purposes only. - Param1 string `envconfig:"DRONE_PARAM_1"` - Param2 string `envconfig:"DRONE_PARAM_2"` + Repo string `envconfig:"DRONE_YAML_REPO"` + Branch string `envconfig:"DRONE_BRANCH"` + Token string `envconfig:"DRONE_TOKEN"` + FetchFrequency time.Duration `envconfig:"DRONE_FETCH_FREQUENCY"` } func main() { @@ -44,12 +45,24 @@ func main() { spec.Bind = ":3000" } + if spec.Repo == "" { + logrus.Fatalln("missing repo") + } + + if spec.Branch == "" { + spec.Branch = "main" + } + + if spec.FetchFrequency == 0 { + spec.FetchFrequency = 10 * time.Minute + } + handler := config.Handler( plugin.New( - // TODO replace or remove these configuration - // parameters. They are for demo purposes only. - spec.Param1, - spec.Param2, + spec.Repo, + spec.Branch, + spec.Token, + spec.FetchFrequency, ), spec.Secret, logrus.StandardLogger(), diff --git a/plugin/plugin.go b/plugin/plugin.go index 3904fc3..8875232 100644 --- a/plugin/plugin.go +++ b/plugin/plugin.go @@ -6,6 +6,9 @@ package plugin import ( "context" + "git.entr0py.de/garionion/drone-yaml-server/repo" + "github.com/sirupsen/logrus" + "time" "github.com/drone/drone-go/drone" "github.com/drone/drone-go/plugin/config" @@ -25,34 +28,41 @@ steps: ` // New returns a new config plugin. -func New(param1, param2 string) config.Plugin { +func New(repository, branch, token string, frequency time.Duration) config.Plugin { + repos := repo.Repos{&repo.Repo{ + URL: repository, + Token: token, + Branch: branch, + Frequency: frequency, + }} + repos.Init() + return &plugin{ - // TODO replace or remove these configuration - // parameters. They are for demo purposes only. - param1: param1, - param2: param2, + repos: repos, } } type plugin struct { - // TODO replace or remove these configuration - // parameters. They are for demo purposes only. - param1 string - param2 string + repos repo.Repos } func (p *plugin) Find(ctx context.Context, req *config.Request) (*drone.Config, error) { - // TODO replace or remove - // this demonstrates how we can override - // and return a custom configuration file if req.Repo.Namespace == "some-organization" { return &drone.Config{ Data: defaultPipeline, }, nil } - // return nil and Drone will fallback to - // the standard behavior for getting the - // configuration file. + configuration, err := p.repos.GetConfiguration(req.Repo.HTTPURL) + if err != nil { + logrus.Error(err) + return nil, err + } + if configuration != "" { + return &drone.Config{ + Data: configuration, + }, nil + } + return nil, nil } diff --git a/repo/repo.go b/repo/repo.go new file mode 100644 index 0000000..da0e6fe --- /dev/null +++ b/repo/repo.go @@ -0,0 +1,90 @@ +package repo + +import ( + "bytes" + "crypto/sha256" + "encoding/json" + "fmt" + "github.com/go-git/go-git/v5" + "github.com/sirupsen/logrus" + "io/ioutil" + "os" + "path" + "time" +) + +type Repo struct { + URL string + Token string + Branch string + Path string + Frequency time.Duration + ConfigMap map[string]string +} + +type Repos []*Repo + +func (repo *Repo) clone() error { + logrus.Infof("Cloning %s into %s", repo.Branch, repo.Path) + _, err := git.PlainClone(repo.Path, false, &git.CloneOptions{ + URL: repo.URL, + }) + if err != nil { + logrus.Errorf("Error while cloning %s: %v", repo.URL, err) + } + return err +} + +func (repo *Repo) setConfigMap() error { + data, err := repo.readFile("drone-config-map.json") + if err != nil { + return err + } + err = json.Unmarshal(data, &repo.ConfigMap) + if err != nil { + return err + } + logrus.Printf("%+v", repo.ConfigMap) + + return nil +} + +func (repo *Repo) readFile(fileName string) ([]byte, error) { + if _, err := os.Stat(path.Join(repo.Path, fileName)); err == nil { + data, err := ioutil.ReadFile(path.Join(repo.Path, fileName)) + if err != nil { + return nil, err + } + return data, nil + } + return nil, fmt.Errorf("File %s not found in %s", fileName, repo.Path) +} + +func (repos *Repos) GetConfiguration(git_http_url string) (string, error) { + fmt.Println(git_http_url) + for _, repo := range *repos { + if file, found := repo.ConfigMap[git_http_url]; found { + data, err := repo.readFile(file) + if err != nil { + return "", err + } + return bytes.NewBuffer(data).String(), nil + } + } + return "", nil +} + +func (r *Repos) Init() { + os.RemoveAll("/tmp/drone-yaml-server") + for _, repo := range *r { + if repo.Branch == "" { + repo.Branch = "main" + } + if repo.Path == "" { + repo.Path = fmt.Sprintf("/tmp/drone-yaml-server/%x", sha256.Sum256([]byte(fmt.Sprintf("%s%s", repo.URL, repo.Branch)))) + } + + repo.clone() + repo.setConfigMap() + } +}