FROM golang:latestMAINTAINER gangtao@outlook.comENV GOPATH=/home/glot
ENV GOROOT=/usr/local/go# Add user
RUN groupadd glot
RUN useradd -m -d /home/glot -g glot -s /bin/bash glot# Copy files
Add ./build/release/server /home/glot/
# Add ./vendor/. /home/glot/srcUSER glot
WORKDIR /home/glot/# generate certificate
RUN go run $GOROOT/src/crypto/tls/generate_cert.go --host localhostEXPOSE 8080# CMD ["/home/glot/runner"]
ENTRYPOINT ["/home/glot/server"]

package code_runnerimport ("fmt""github.com/prasmussen/glot-code-runner/cmd""github.com/prasmussen/glot-code-runner/language""io/ioutil""os""path/filepath"
)type Payload struct {Language string          `json:"language"`Files    []*InMemoryFile `json:"files"`Stdin    string          `json:"stdin"`Command  string          `json:"command"`
}type InMemoryFile struct {Name    string `json:"name"`Content string `json:"content"`
}type Result struct {Stdout string `json:"stdout"`Stderr string `json:"stderr"`Error  string `json:"error"`
}func Run(payload *Payload) *Result {// Ensure that we have at least one fileif len(payload.Files) == 0 {exitF("No files givenn")}// Check if we support given languageif !language.IsSupported(payload.Language) {exitF("Language '%s' is not supportedn", payload.Language)}// Write files to diskfilepaths, err := writeFiles(payload.Files)if err != nil {exitF("Failed to write file to disk (%s)", err.Error())}var stdout, stderr string// Execute the given command or run the code with// the language runner if no command is givenif payload.Command == "" {stdout, stderr, err = language.Run(payload.Language, filepaths, payload.Stdin)} else {workDir := filepath.Dir(filepaths[0])stdout, stderr, err = cmd.RunBashStdin(workDir, payload.Command, payload.Stdin)}result := &Result{Stdout: stdout,Stderr: stderr,Error:  errToStr(err),}return result
}// Writes files to disk, returns list of absolute filepaths
func writeFiles(files []*InMemoryFile) ([]string, error) {// Create temp dirtmpPath, err := ioutil.TempDir("", "")if err != nil {return nil, err}paths := make([]string, len(files), len(files))for i, file := range files {path, err := writeFile(tmpPath, file)if err != nil {return nil, err}paths[i] = path}return paths, nil
}// Writes a single file to disk
func writeFile(basePath string, file *InMemoryFile) (string, error) {// Get absolute path to file inside basePathabsPath := filepath.Join(basePath, file.Name)// Create all parent dirserr := os.MkdirAll(filepath.Dir(absPath), 0775)if err != nil {return "", err}// Write file to diskerr = ioutil.WriteFile(absPath, []byte(file.Content), 0664)if err != nil {return "", err}// Return absolute path to filereturn absPath, nil
}func exitF(format string, a ...interface{}) {fmt.Fprintf(os.Stderr, format, a...)os.Exit(1)
}func errToStr(err error) string {if err != nil {return err.Error()}return ""
}

curl -X POST http://localhost:8080/run -H 'Content-Type: application/json' -d '{"language":"python","files":[{"name":"main.py","content":"print(42)"}]}'{"stdout":"42n","stderr":"","error":""}

FROM naughtytao/code_runnerMAINTAINER gangtao@outlook.comAdd ./static /home/glot/static