Commit 9bb7c27c authored by Darren Shepherd's avatar Darren Shepherd

Initial Commit

privileged: true
image: rancher/dapper:1.11.2
- /var/run/docker.sock:/var/run/docker.sock
- dapper ci
image: rancher/dapper:1.11.2
- cp -f ./bin/rio-incluster ./package/rio
branch: master
event: tag
image: plugins/docker
dockerfile: package/Dockerfile
repo: rancher/rio
context: package/
tag: ${DRONE_TAG}
secrets: [docker_username, docker_password]
branch: master
event: tag
image: plugins/github-release
prerelease: true
- dist/artifacts/*
- sha256
secrets: [github_token]
branch: master
event: tag
include: [ refs/tags/*rc* ]
image: plugins/github-release
- dist/artifacts/*
- sha256
secrets: [github_token]
branch: master
event: tag
exclude: [ refs/tags/*rc* ]
"EnableAll": false,
"Enable": [
"Deadline": "1m"
\ No newline at end of file
FROM golang:1.11-alpine3.8
RUN apk -U --no-cache add bash git gcc musl-dev docker vim less file curl wget ca-certificates jq linux-headers zlib-dev tar zip squashfs-tools npm coreutils \
python3 py3-pip python3-dev openssl-dev libffi-dev
RUN pip3 install 'tox==3.6.0'
RUN npm install -g 'bats@1.1.0'
RUN apk -U --no-cache --repository add sqlite-dev sqlite-static
RUN go get -d && \
git -C /go/src/ checkout -b current 06c8688daad7faa9da5a0c2f163a3d14aac986ca && \
go install && \
rm -rf /go/src /go/pkg
RUN go get -d && \
git -C /go/src/ checkout -b current v2.0.11 && \
go install && \
gometalinter --install && \
rm -rf /go/src /go/pkg
ENV DAPPER_RUN_ARGS --privileged
ENV DAPPER_OUTPUT ./bin ./dist
ENTRYPOINT ["./scripts/entry"]
CMD ["ci"]
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TARGETS := $(shell ls scripts)
@echo Downloading dapper
@curl -sL`uname -s`-`uname -m` > .dapper.tmp
@@chmod +x .dapper.tmp
@./.dapper.tmp -v
@mv .dapper.tmp .dapper
$(TARGETS): .dapper
./.dapper $@
trash: .dapper
./.dapper -m bind trash
trash-keep: .dapper
./.dapper -m bind trash -k
deps: trash
package config
import (
net2 ""
type envInfo struct {
ServerURL string
Token string
DataDir string
NodeIP string
NodeName string
func Get() *config.Node {
for {
agentConfig, err := get()
if err != nil {
time.Sleep(5 * time.Second)
return agentConfig
func getEnvInfo() (*envInfo, error) {
u := os.Getenv("K3S_URL")
if u == "" {
return nil, fmt.Errorf("K3S_URL env var is required")
_, err := url.Parse(u)
if err != nil {
return nil, fmt.Errorf("K3S_URL [%s] is invalid: %v", u, err)
t := os.Getenv("K3S_TOKEN")
if t == "" {
return nil, fmt.Errorf("K3S_TOKEN env var is required")
dataDir := os.Getenv("K3S_DATA_DIR")
if dataDir == "" {
return nil, fmt.Errorf("K3S_DATA_DIR is required")
return &envInfo{
ServerURL: u,
Token: t,
DataDir: dataDir,
NodeIP: os.Getenv("K3S_NODE_IP"),
NodeName: os.Getenv("NODE_NAME"),
}, nil
func getNodeCert(info *clientaccess.Info) (*tls.Certificate, error) {
nodeCert, err := clientaccess.Get("/v1-k3s/node.cert", info)
if err != nil {
return nil, err
nodeKey, err := clientaccess.Get("/v1-k3s/node.key", info)
if err != nil {
return nil, err
cert, err := tls.X509KeyPair(nodeCert, nodeKey)
if err != nil {
return nil, err
return &cert, nil
func writeNodeCA(dataDir string, nodeCert *tls.Certificate) (string, error) {
clientCABytes := pem.EncodeToMemory(&pem.Block{
Bytes: nodeCert.Certificate[1],
clientCA := filepath.Join(dataDir, "client-ca.pem")
if err := ioutil.WriteFile(clientCA, clientCABytes, 0600); err != nil {
return "", errors.Wrapf(err, "failed to write client CA")
return clientCA, nil
func getHostnameAndIP(info envInfo) (string, string, error) {
ip := info.NodeIP
if ip == "" {
hostIP, err := net2.ChooseHostInterface()
if err != nil {
return "", "", err
ip = hostIP.String()
name := info.NodeName
if name == "" {
hostname, err := os.Hostname()
if err != nil {
return "", "", err
hostname = strings.Split(hostname, ".")[0]
d := md5.Sum([]byte(ip))
name = hostname + "-" + hex.EncodeToString(d[:])[:8]
return name, ip, nil
func localAddress(controlConfig *config.Control) string {
return fmt.Sprintf("", controlConfig.AdvertisePort)
func writeKubeConfig(envInfo *envInfo, info clientaccess.Info, controlConfig *config.Control, nodeCert *tls.Certificate) (string, error) {
os.MkdirAll(envInfo.DataDir, 0700)
kubeConfigPath := filepath.Join(envInfo.DataDir, "kubeconfig.yaml")
info.URL = "https://" + localAddress(controlConfig)
info.CACerts = pem.EncodeToMemory(&pem.Block{
Type: cert.CertificateBlockType,
Bytes: nodeCert.Certificate[1],
return kubeConfigPath, info.WriteKubeConfig(kubeConfigPath)
func get() (*config.Node, error) {
envInfo, err := getEnvInfo()
if err != nil {
return nil, err
serverURLParsed, err := url.Parse(envInfo.ServerURL)
if err != nil {
return nil, err
info, err := clientaccess.ParseAndValidateToken(envInfo.ServerURL, envInfo.Token)
if err != nil {
return nil, err
controlConfig, err := getConfig(info)
if err != nil {
return nil, err
nodeCert, err := getNodeCert(info)
if err != nil {
return nil, err
clientCA, err := writeNodeCA(envInfo.DataDir, nodeCert)
if err != nil {
return nil, err
nodeName, nodeIP, err := getHostnameAndIP(*envInfo)
if err != nil {
return nil, err
kubeConfig, err := writeKubeConfig(envInfo, *info, controlConfig, nodeCert)
if err != nil {
return nil, err
nodeConfig := &controlConfig.NodeConfig
nodeConfig.LocalAddress = localAddress(controlConfig)
nodeConfig.AgentConfig.NodeIP = defString(nodeConfig.AgentConfig.NodeIP, nodeIP)
nodeConfig.AgentConfig.NodeName = defString(nodeConfig.AgentConfig.NodeName, nodeName)
nodeConfig.AgentConfig.CNIBinDir = defString(nodeConfig.AgentConfig.CNIBinDir, "/usr/share/cni")
nodeConfig.AgentConfig.CACertPath = clientCA
nodeConfig.AgentConfig.ListenAddress = defString(nodeConfig.AgentConfig.ListenAddress, "")
nodeConfig.AgentConfig.KubeConfig = kubeConfig
nodeConfig.CACerts = info.CACerts
nodeConfig.ServerAddress = serverURLParsed.Host
nodeConfig.Certificate = nodeCert
if !nodeConfig.Docker {
nodeConfig.AgentConfig.RuntimeSocket = "/run/k3s/containerd.sock"
return nodeConfig, nil
func defString(val, newVal string) string {
if val == "" {
return newVal
return val
func getConfig(info *clientaccess.Info) (*config.Control, error) {
data, err := clientaccess.Get("/v1-k3s/config", info)
if err != nil {
return nil, err
controlControl := &config.Control{}
return controlControl, json.Unmarshal(data, controlControl)
package containerd
import (
util2 ""
runtimeapi ""
const (
address = "/run/k3s/containerd.sock"
maxMsgSize = 1024 * 1024 * 16
configToml = `[plugins.cri]
stream_server_address = "%NODE%"
stream_server_port = "10010"
bin_dir = "/usr/share/cni/bin"
conf_dir = "/etc/cni/net.d"
func Run(ctx context.Context, config *config.NodeConfig) error {
args := []string{
"-a", address,
"--state", "/run/k3s/containerd",
if err := util2.WriteFile("/etc/containerd/config.toml",
strings.Replace(configToml, "%NODE%", config.AgentConfig.NodeName, -1)); err != nil {
return err
if logrus.GetLevel() >= logrus.DebugLevel {
args = append(args, "--verbose")
go func() {
cmd := exec.Command(args[0], args[1:]...)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
cmd.SysProcAttr = &syscall.SysProcAttr{
Pdeathsig: syscall.SIGKILL,
if err := cmd.Run(); err != nil {
fmt.Fprintf(os.Stderr, "containerd: %s\n", err)