borrar implementación go
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63690627d6
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4 changed files with 0 additions and 1373 deletions
7
.gitignore
vendored
7
.gitignore
vendored
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@ -1,12 +1,5 @@
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rootfs.ext4
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rootfs.ext4
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rootfs.qcow2
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fireactions
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*.ext4
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*.squashfs
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*.config.json
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vmlinux.bin
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vmlinux.bin
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node_modules/
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node_modules/
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*.log
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build.cjs
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build.cjs
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51
go.mod
51
go.mod
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@ -1,51 +0,0 @@
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module gitea.nulo.in/Nulo/fireactions
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go 1.20
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require (
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github.com/PuerkitoBio/purell v1.1.1 // indirect
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github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 // indirect
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github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d // indirect
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github.com/containerd/fifo v1.0.0 // indirect
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github.com/containernetworking/cni v1.0.1 // indirect
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github.com/containernetworking/plugins v1.0.1 // indirect
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github.com/firecracker-microvm/firecracker-go-sdk v1.0.0 // indirect
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github.com/go-openapi/analysis v0.21.2 // indirect
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github.com/go-openapi/errors v0.20.2 // indirect
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github.com/go-openapi/jsonpointer v0.19.5 // indirect
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github.com/go-openapi/jsonreference v0.19.6 // indirect
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github.com/go-openapi/loads v0.21.1 // indirect
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github.com/go-openapi/runtime v0.24.0 // indirect
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github.com/go-openapi/spec v0.20.4 // indirect
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github.com/go-openapi/strfmt v0.21.2 // indirect
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github.com/go-openapi/swag v0.21.1 // indirect
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github.com/go-openapi/validate v0.22.0 // indirect
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github.com/go-stack/stack v1.8.1 // indirect
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github.com/golang-jwt/jwt v3.2.2+incompatible // indirect
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github.com/google/uuid v1.3.0 // indirect
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github.com/hashicorp/errwrap v1.0.0 // indirect
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github.com/hashicorp/go-multierror v1.1.1 // indirect
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github.com/jaevor/go-nanoid v1.3.0 // indirect
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github.com/josharian/intern v1.0.0 // indirect
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github.com/labstack/echo/v4 v4.10.2 // indirect
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github.com/labstack/gommon v0.4.0 // indirect
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github.com/mailru/easyjson v0.7.7 // indirect
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github.com/mattn/go-colorable v0.1.13 // indirect
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github.com/mattn/go-isatty v0.0.17 // indirect
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github.com/mitchellh/mapstructure v1.4.3 // indirect
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github.com/oklog/ulid v1.3.1 // indirect
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github.com/opentracing/opentracing-go v1.2.0 // indirect
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github.com/pkg/errors v0.9.1 // indirect
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github.com/sirupsen/logrus v1.8.1 // indirect
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github.com/valyala/bytebufferpool v1.0.0 // indirect
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github.com/valyala/fasttemplate v1.2.2 // indirect
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github.com/vishvananda/netlink v1.1.1-0.20210330154013-f5de75959ad5 // indirect
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github.com/vishvananda/netns v0.0.0-20210104183010-2eb08e3e575f // indirect
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go.mongodb.org/mongo-driver v1.8.3 // indirect
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golang.org/x/crypto v0.6.0 // indirect
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golang.org/x/net v0.7.0 // indirect
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golang.org/x/sys v0.5.0 // indirect
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golang.org/x/text v0.7.0 // indirect
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golang.org/x/time v0.3.0 // indirect
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gopkg.in/yaml.v2 v2.4.0 // indirect
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)
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203
main.go
203
main.go
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package main
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// https://stanislas.blog/2021/08/firecracker/
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import (
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"bytes"
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"context"
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"errors"
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"fmt"
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"io/ioutil"
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"log"
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"net/http"
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"os"
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"time"
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"github.com/firecracker-microvm/firecracker-go-sdk"
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"github.com/firecracker-microvm/firecracker-go-sdk/client/models"
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"github.com/jaevor/go-nanoid"
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"github.com/labstack/echo/v4"
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"github.com/labstack/echo/v4/middleware"
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)
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func main() {
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e := echo.New()
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e.Use(middleware.Logger())
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e.Use(middleware.Recover())
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e.POST("/run", run)
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e.Logger.Fatal(e.Start(":8080"))
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}
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type runResp struct {
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VmId string
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}
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func run(c echo.Context) error {
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script, err := ioutil.ReadAll(c.Request().Body)
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if err != nil {
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panic(err)
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}
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vmid, agent, m := startVM()
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err = agent.run(script)
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if err != nil {
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return err
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}
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go func() {
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ctx := context.Background()
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if err := m.Wait(ctx); err != nil {
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panic(err)
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}
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}()
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defer agent.off()
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return c.JSON(http.StatusOK, runResp{
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VmId: vmid,
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})
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}
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func startVM() (string, agentConfig, *firecracker.Machine) {
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nanid, err := nanoid.Standard(21)
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if err != nil {
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panic(err)
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}
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vmid := nanid()
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secret := nanid()
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socketPath := "/tmp/firecracker-" + vmid + ".sock"
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cfg := firecracker.Config{
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SocketPath: socketPath,
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KernelImagePath: "vmlinux.bin",
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Drives: firecracker.NewDrivesBuilder("./rootfs.ext4").Build(),
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NetworkInterfaces: []firecracker.NetworkInterface{{
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CNIConfiguration: &firecracker.CNIConfiguration{
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NetworkName: "fcnet",
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IfName: "veth0-fire",
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BinPath: []string{"/opt/cni/bin", "/usr/libexec/cni"},
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},
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}},
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MachineCfg: models.MachineConfiguration{
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VcpuCount: firecracker.Int64(1),
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MemSizeMib: firecracker.Int64(1024),
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},
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// TODO: setup jailer
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KernelArgs: "console=ttyS0 reboot=k panic=1 pci=off fireactions.secret=" + secret,
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}
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// TODO: change stdout/stderr files
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stdoutPath := "/tmp/stdout.log"
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stdout, err := os.OpenFile(stdoutPath, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0644)
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if err != nil {
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panic(fmt.Errorf("failed to create stdout file: %v", err))
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}
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stderrPath := "/tmp/stderr.log"
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stderr, err := os.OpenFile(stderrPath, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0644)
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if err != nil {
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panic(fmt.Errorf("failed to create stderr file: %v", err))
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}
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ctx := context.Background()
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// build our custom command that contains our two files to
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// write to during process execution
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cmd := firecracker.VMCommandBuilder{}.
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WithBin("firecracker").
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WithSocketPath(socketPath).
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WithStdout(stdout).
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WithStderr(stderr).
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Build(ctx)
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m, err := firecracker.NewMachine(ctx, cfg, firecracker.WithProcessRunner(cmd))
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if err != nil {
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panic(fmt.Errorf("failed to create new machine: %v", err))
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}
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if err := m.Start(ctx); err != nil {
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panic(fmt.Errorf("failed to initialize machine: %v", err))
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}
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ip := m.Cfg.NetworkInterfaces[0].StaticConfiguration.IPConfiguration.IPAddr.IP
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log.Printf("IP: %s", ip.String())
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// defer m.StopVMM()
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agent := agentConfig{ip: ip.String(), secret: secret}
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if err := agent.waitForAgent(); err != nil {
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log.Panic(err)
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}
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go func() {
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ctx := context.Background()
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if err := m.Wait(ctx); err != nil {
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panic(err)
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}
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os.Remove(cfg.SocketPath)
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}()
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// if err := m.Wait(ctx); err != nil {
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// panic(err)
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// }
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return vmid, agent, m
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}
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type agentConfig struct {
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ip string
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secret string
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}
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func (a agentConfig) request() *http.Request {
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req, err := http.NewRequest("GET", "http://"+a.ip+":8080/hello", nil)
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req.Header.Set("Authorization", "Bearer "+a.secret)
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if err != nil {
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panic(err)
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}
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return req
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}
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func (a agentConfig) run(script []byte) error {
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req, err := http.NewRequest("POST", "http://"+a.ip+":8080/run", bytes.NewBuffer(script))
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req.Header.Set("Authorization", "Bearer "+a.secret)
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if err != nil {
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panic(err)
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}
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res, err := http.DefaultClient.Do(req)
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if err != nil {
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return err
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}
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byt, err := ioutil.ReadAll(res.Body)
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if err != nil {
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return err
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}
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log.Println("[QIOdLqxLoKIMQ0uGoxNuu]", string(byt))
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return nil
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}
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func (a agentConfig) off() error {
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return a.run([]byte("#!/bin/sh\nreboot"))
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}
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func (a agentConfig) waitForAgent() error {
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client := http.Client{
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Timeout: time.Millisecond * 50,
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}
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for {
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log.Println("waiting for agent to come up...")
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req := a.request()
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req.Method = "GET"
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req.URL.Path = "/hello"
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resp, err := client.Do(req)
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if err != nil {
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time.Sleep(time.Millisecond * 200)
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continue
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}
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if resp.StatusCode != http.StatusOK {
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log.Println("Agent is failing", resp)
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return errors.New("Agent is failing")
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}
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break
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}
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return nil
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}
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