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prow.go
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prow.go
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package prow
import (
"encoding/json"
"fmt"
"io/ioutil"
"strings"
v1 "github.com/jenkins-x/jx/v2/pkg/apis/jenkins.io/v1"
"github.com/jenkins-x/jx/v2/pkg/kube"
"github.com/jenkins-x/jx/v2/pkg/util"
"github.com/pkg/errors"
"github.com/ghodss/yaml"
prowconfig "github.com/jenkins-x/jx/v2/pkg/prow/config"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
prowapi "k8s.io/test-infra/prow/apis/prowjobs/v1"
"k8s.io/test-infra/prow/config"
"k8s.io/test-infra/prow/plugins"
)
const (
TektonAgent = "tekton"
)
const (
ProwConfigMapName = "config"
ProwPluginsConfigMapName = "plugins"
ProwExternalPluginsFilename = "external-plugins.yaml"
ProwConfigFilename = "config.yaml"
ProwPluginsFilename = "plugins.yaml"
)
// Options for Prow
type Options struct {
KubeClient kubernetes.Interface
Repos []string
NS string
Kind prowconfig.Kind
DraftPack string
EnvironmentNamespace string
Context string
Agent string
IgnoreBranch bool
PluginsFileLocation string
ConfigFileLocation string
}
type ExternalPlugins struct {
Items []plugins.ExternalPlugin
}
func add(kubeClient kubernetes.Interface, repos []string, ns string, kind prowconfig.Kind, draftPack, environmentNamespace string, context string, teamSettings *v1.TeamSettings) error {
if len(repos) == 0 {
return fmt.Errorf("no repo defined")
}
agent := TektonAgent
o := Options{
KubeClient: kubeClient,
Repos: repos,
NS: ns,
Kind: kind,
DraftPack: draftPack,
EnvironmentNamespace: environmentNamespace,
Context: context,
Agent: agent,
}
if err := o.AddProwConfig(); err != nil {
return errors.Wrap(err, "adding prow config")
}
if err := o.AddProwPlugins(); err != nil {
return errors.Wrap(err, "adding prow plugins")
}
return nil
}
func remove(kubeClient kubernetes.Interface, repos []string, ns string, kind prowconfig.Kind) error {
if len(repos) == 0 {
return fmt.Errorf("no repo defined")
}
o := Options{
KubeClient: kubeClient,
Repos: repos,
NS: ns,
Kind: kind,
}
return o.RemoveProwConfig()
}
// AddEnvironment adds an environment git repo config
func AddEnvironment(kubeClient kubernetes.Interface, repos []string, ns, environmentNamespace string, teamSettings *v1.TeamSettings, remoteEnvironment bool) error {
kind := prowconfig.Environment
if remoteEnvironment {
kind = prowconfig.RemoteEnvironment
}
return add(kubeClient, repos, ns, kind, "", environmentNamespace, "", teamSettings)
}
// AddApplication adds an app git repo config
func AddApplication(kubeClient kubernetes.Interface, repos []string, ns, draftPack string, teamSettings *v1.TeamSettings) error {
return add(kubeClient, repos, ns, prowconfig.Application, draftPack, "", "", teamSettings)
}
// DeleteApplication will delete the Prow configuration for a given set of repositories
func DeleteApplication(kubeClient kubernetes.Interface, repos []string, ns string) error {
return remove(kubeClient, repos, ns, prowconfig.Application)
}
// AddProtection adds a protection entry in the prow config
func AddProtection(kubeClient kubernetes.Interface, repos []string, context string, ns string, teamSettings *v1.TeamSettings) error {
return add(kubeClient, repos, ns, prowconfig.Protection, "", "", context, teamSettings)
}
// AddExternalPlugins adds one or more external plugins to the specified repos. If repos is nil,
// then the external plugins will be added to all repos that have plugins
func AddExternalPlugins(kubeClient kubernetes.Interface, repos []string, ns string,
add ...plugins.ExternalPlugin) error {
o := Options{
KubeClient: kubeClient,
NS: ns,
}
if err := o.AddExternalProwPlugins(add); err != nil {
return errors.Wrap(err, "add external prow plugins")
}
if err := o.AddProwPlugins(); err != nil {
return errors.Wrap(err, "add prow plugins")
}
return nil
}
// create Git repo?
// get config and update / overwrite repos?
// should we get the existing CM and do a diff?
// should we just be using git for config and use Prow to auto update via gitops?
func (o *Options) createPreSubmitEnvironment() config.Presubmit {
ps := config.Presubmit{}
ps.Name = prowconfig.PromotionBuild
ps.AlwaysRun = true
ps.SkipReport = false
ps.Context = prowconfig.PromotionBuild
ps.Agent = o.Agent
ps.RerunCommand = "/test this"
ps.Trigger = "(?m)^/test( all| this),?(\\s+|$)"
return ps
}
func (o *Options) createPostSubmitEnvironment() config.Postsubmit {
ps := config.Postsubmit{}
ps.Name = "promotion"
ps.Agent = o.Agent
ps.Branches = []string{"^master$"}
return ps
}
func (o *Options) createPostSubmitApplication() config.Postsubmit {
ps := config.Postsubmit{}
ps.Branches = []string{"^master$"}
ps.Name = "release"
ps.Agent = o.Agent
return ps
}
func (o *Options) createPreSubmitApplication() config.Presubmit {
ps := config.Presubmit{}
ps.Context = prowconfig.ServerlessJenkins
ps.Name = prowconfig.ServerlessJenkins
ps.RerunCommand = "/test this"
ps.Trigger = "(?m)^/test( all| this),?(\\s+|$)"
ps.AlwaysRun = true
ps.SkipReport = false
ps.Agent = o.Agent
ps.RerunCommand = "/test this"
ps.Trigger = "(?m)^/test( all| this),?(\\s+|$)"
return ps
}
// AddProwConfig adds config to Prow
func (o *Options) AddProwConfig() error {
var preSubmit config.Presubmit
var postSubmit config.Postsubmit
switch o.Kind {
case prowconfig.Application:
preSubmit = o.createPreSubmitApplication()
postSubmit = o.createPostSubmitApplication()
case prowconfig.Environment:
preSubmit = o.createPreSubmitEnvironment()
postSubmit = o.createPostSubmitEnvironment()
case prowconfig.RemoteEnvironment:
preSubmit = o.createPreSubmitEnvironment()
case prowconfig.Protection:
// Nothing needed
default:
return fmt.Errorf("unknown Prow config kind %s", o.Kind)
}
prowConfig, create, err := o.GetProwConfig()
if err != nil {
return errors.Wrap(err, "getting prow config")
}
prowConfig.PodNamespace = o.NS
prowConfig.ProwJobNamespace = o.NS
for _, r := range o.Repos {
err = prowconfig.AddRepoToTideConfig(&prowConfig.Tide, r, o.Kind)
if err != nil {
return errors.Wrapf(err, "adding repo %q to tide config", r)
}
err = prowconfig.AddRepoToBranchProtection(&prowConfig.BranchProtection, r, o.Context, o.Kind)
if err != nil {
return errors.Wrapf(err, "adding repo %q to branch protection", r)
}
}
for _, r := range o.Repos {
if prowConfig.Presubmits[r] == nil {
prowConfig.Presubmits[r] = make([]config.Presubmit, 0)
}
if prowConfig.Postsubmits[r] == nil {
prowConfig.Postsubmits[r] = make([]config.Postsubmit, 0)
}
if preSubmit.Name != "" {
found := false
for i, j := range prowConfig.Presubmits[r] {
if j.Name == preSubmit.Name {
found = true
prowConfig.Presubmits[r][i] = preSubmit
break
}
}
if !found {
prowConfig.Presubmits[r] = append(prowConfig.Presubmits[r], preSubmit)
}
}
if o.Kind != prowconfig.RemoteEnvironment && postSubmit.Name != "" {
found := false
for i, j := range prowConfig.Postsubmits[r] {
if j.Name == postSubmit.Name {
found = true
prowConfig.Postsubmits[r][i] = postSubmit
break
}
}
if !found {
prowConfig.Postsubmits[r] = append(prowConfig.Postsubmits[r], postSubmit)
}
}
}
if err := o.saveProwConfig(prowConfig, create); err != nil {
return errors.Wrap(err, "saving prow config")
}
return nil
}
// RemoveProwConfig deletes a config (normally a repository integration) from Prow
func (o *Options) RemoveProwConfig() error {
prowConfig, created, err := o.GetProwConfig()
if created {
return errors.New("no existing prow config. Nothing to remove")
}
if err != nil {
return errors.Wrap(err, "getting existing prow config")
}
for _, repo := range o.Repos {
err = prowconfig.RemoveRepoFromTideConfig(&prowConfig.Tide, repo, o.Kind)
if err != nil {
return errors.Wrapf(err, "removing repo %s from tide config", repo)
}
err = prowconfig.RemoveRepoFromBranchProtection(&prowConfig.BranchProtection, repo)
if err != nil {
return errors.Wrapf(err, "removing repo %s from branch protection", repo)
}
delete(prowConfig.Presubmits, repo)
delete(prowConfig.Postsubmits, repo)
}
if err := o.saveProwConfig(prowConfig, created); err != nil {
return errors.Wrap(err, "saving prow config")
}
return nil
}
func (o *Options) saveProwConfig(prowConfig *config.Config, create bool) error {
configYAML, err := yaml.Marshal(prowConfig)
if err != nil {
return errors.Wrap(err, "marshaling the prow config")
}
data := make(map[string]string)
data[ProwConfigFilename] = string(configYAML)
cm := &corev1.ConfigMap{
Data: data,
ObjectMeta: metav1.ObjectMeta{
Name: ProwConfigMapName,
},
}
if create {
// replace with git repository version of a configmap
_, err = o.KubeClient.CoreV1().ConfigMaps(o.NS).Create(cm)
err = errors.Wrapf(err, "creating the config map %q", ProwConfigMapName)
} else {
_, err = o.KubeClient.CoreV1().ConfigMaps(o.NS).Update(cm)
err = errors.Wrapf(err, "updating the config map %q", ProwConfigMapName)
}
return err
}
func (o *Options) GetProwConfig() (*config.Config, bool, error) {
cm, err := o.KubeClient.CoreV1().ConfigMaps(o.NS).Get(ProwConfigMapName, metav1.GetOptions{})
create := true
prowConfig := &config.Config{}
// config doesn't exist, creating
if err != nil {
prowConfig.Presubmits = make(map[string][]config.Presubmit)
prowConfig.Postsubmits = make(map[string][]config.Postsubmit)
prowConfig.BranchProtection = config.BranchProtection{}
// calculate the tide url from the ingress config
ingressConfigMap, err := o.KubeClient.CoreV1().ConfigMaps(o.NS).Get(kube.IngressConfigConfigmap, metav1.GetOptions{})
if err != nil {
return prowConfig, create, errors.Wrapf(err, "get %q config map from namespace %q", kube.IngressConfigConfigmap, o.NS)
}
domain := ingressConfigMap.Data["domain"]
tls := ingressConfigMap.Data["tls"]
scheme := "http"
if tls == "true" {
scheme = "https"
}
tideURL := fmt.Sprintf("%s://deck.%s.%s", scheme, o.NS, domain)
prowConfig.Tide = prowconfig.CreateTide(tideURL)
} else {
// config exists, updating
create = false
err = yaml.Unmarshal([]byte(cm.Data[ProwConfigFilename]), &prowConfig)
if err != nil {
return prowConfig, create, errors.Wrap(err, "unmarshaling prow config")
}
if len(prowConfig.Presubmits) == 0 {
prowConfig.Presubmits = make(map[string][]config.Presubmit)
}
if len(prowConfig.Postsubmits) == 0 {
prowConfig.Postsubmits = make(map[string][]config.Postsubmit)
}
if prowConfig.BranchProtection.Orgs == nil {
prowConfig.BranchProtection.Orgs = make(map[string]config.Org, 0)
}
}
return prowConfig, create, nil
}
// LoadProwConfigFromFile loads prow config from a file
func (o *Options) LoadProwConfigFromFile() (*config.Config, error) {
exists, err := util.FileExists(o.ConfigFileLocation)
if err != nil {
return nil, errors.Wrap(err, "loading prow config from "+o.ConfigFileLocation)
}
if exists {
data, err := ioutil.ReadFile(o.ConfigFileLocation)
if err != nil {
return nil, errors.New("loading prow config from " + o.ConfigFileLocation)
}
prowConfig := &config.Config{}
if err == nil {
err = yaml.Unmarshal(data, &prowConfig)
if err != nil {
return nil, errors.Wrap(err, "unmarshaling prow config")
}
return prowConfig, nil
}
}
return nil, errors.New("loading prow config from " + o.ConfigFileLocation)
}
// LoadProwPluginsFromFile loads prow plugins from a file
func (o *Options) LoadProwPluginsFromFile() (*plugins.Configuration, error) {
exists, err := util.FileExists(o.PluginsFileLocation)
if err != nil {
return nil, errors.Wrap(err, "loading prow plugins from "+o.PluginsFileLocation)
}
if exists {
data, err := ioutil.ReadFile(o.PluginsFileLocation)
if err != nil {
return nil, errors.New("loading prow plugins from " + o.PluginsFileLocation)
}
if err == nil {
pluginConfig := &plugins.Configuration{}
err = yaml.Unmarshal(data, &pluginConfig)
if err != nil {
return nil, errors.Wrap(err, "unmarshaling plugin config")
}
return pluginConfig, nil
}
}
return nil, errors.New("loading prow plugins from " + o.ConfigFileLocation)
}
// LoadProwConfig loads prow config from configmap
func (o *Options) LoadProwConfig() (*config.Config, error) {
cm, err := o.KubeClient.CoreV1().ConfigMaps(o.NS).Get(ProwConfigMapName, metav1.GetOptions{})
prowConfig := &config.Config{}
if err == nil {
err = yaml.Unmarshal([]byte(cm.Data[ProwConfigFilename]), &prowConfig)
if err != nil {
return nil, errors.Wrap(err, "unmarshaling prow config")
}
} else {
return nil, errors.Wrap(err, "loading prow config configmap")
}
return prowConfig, nil
}
// LoadPluginConfig loads prow plugins from a configmap
func (o *Options) LoadPluginConfig() (*plugins.Configuration, error) {
cm, err := o.KubeClient.CoreV1().ConfigMaps(o.NS).Get(ProwPluginsConfigMapName, metav1.GetOptions{})
pluginConfig := &plugins.Configuration{}
if err == nil {
err = yaml.Unmarshal([]byte(cm.Data[ProwPluginsFilename]), pluginConfig)
if err != nil {
return nil, errors.Wrap(err, "unmarshaling plugins")
}
} else {
return nil, errors.Wrap(err, "loading prow plugins configmap")
}
return pluginConfig, nil
}
func (o *Options) upsertPluginConfig(closure func(pluginConfig *plugins.Configuration,
externalPlugins *ExternalPlugins) error) error {
cm, err := o.KubeClient.CoreV1().ConfigMaps(o.NS).Get(ProwPluginsConfigMapName, metav1.GetOptions{})
create := true
pluginConfig := &plugins.Configuration{}
externalPlugins := &ExternalPlugins{}
if err == nil {
create = false
err = yaml.Unmarshal([]byte(cm.Data[ProwPluginsFilename]), pluginConfig)
if err != nil {
return errors.Wrap(err, "unmarshaling plugins")
}
err = yaml.Unmarshal([]byte(cm.Data[ProwExternalPluginsFilename]), externalPlugins)
if err != nil {
return errors.Wrap(err, "unmarshaling external plugins")
}
}
if pluginConfig == nil {
pluginConfig = &plugins.Configuration{}
pluginConfig.ConfigUpdater.Maps = make(map[string]plugins.ConfigMapSpec)
pluginConfig.ConfigUpdater.Maps["prow/config.yaml"] = plugins.ConfigMapSpec{Name: ProwConfigMapName}
pluginConfig.ConfigUpdater.Maps["prow/plugins.yaml"] = plugins.ConfigMapSpec{Name: ProwPluginsConfigMapName}
}
if len(pluginConfig.Plugins) == 0 {
pluginConfig.Plugins = make(map[string][]string)
}
if len(pluginConfig.ExternalPlugins) == 0 {
pluginConfig.ExternalPlugins = make(map[string][]plugins.ExternalPlugin)
}
if len(pluginConfig.Approve) == 0 {
pluginConfig.Approve = []plugins.Approve{}
}
if len(pluginConfig.Welcome) == 0 {
pluginConfig.Welcome = []plugins.Welcome{
{
MessageTemplate: "Welcome",
},
}
}
err = closure(pluginConfig, externalPlugins)
if err != nil {
return errors.Wrap(err, "transforming the plugins and external plugins config")
}
pluginYAML, err := yaml.Marshal(pluginConfig)
if err != nil {
return errors.Wrap(err, "marshaling plugins config")
}
externalPluginsYAML, err := yaml.Marshal(externalPlugins)
if err != nil {
return errors.Wrap(err, "marshaling external plguins config")
}
data := make(map[string]string)
data[ProwPluginsFilename] = string(pluginYAML)
data[ProwExternalPluginsFilename] = string(externalPluginsYAML)
cm = &corev1.ConfigMap{
Data: data,
ObjectMeta: metav1.ObjectMeta{
Name: ProwPluginsConfigMapName,
},
}
if create {
_, err = o.KubeClient.CoreV1().ConfigMaps(o.NS).Create(cm)
err = errors.Wrapf(err, "createing the %q config map in namespace %q", ProwPluginsConfigMapName, o.NS)
} else {
_, err = o.KubeClient.CoreV1().ConfigMaps(o.NS).Update(cm)
err = errors.Wrapf(err, "updating the %q config map in namespace %q", ProwPluginsConfigMapName, o.NS)
}
return err
}
// AddProwPlugins adds plugins and external plugins to prow for any repos defined in o.Repos,
// or for all repos which have plugins if o.Repos is nil
func (o *Options) AddProwPlugins() error {
pluginsList := []string{"config-updater", "approve", "assign", "blunderbuss", "help", "hold", "lgtm", "lifecycle", "size", "trigger", "wip", "heart", "cat", "override"}
closure := func(pluginConfig *plugins.Configuration, externalPlugins *ExternalPlugins) error {
if o.Repos == nil {
// Then we need react for all repos defined in the plugins list
o.Repos = make([]string, 0)
for r := range pluginConfig.Plugins {
o.Repos = append(o.Repos, r)
}
}
for _, r := range o.Repos {
pluginConfig.Plugins[r] = pluginsList
pTrue := true
a := plugins.Approve{
Repos: []string{r},
RequireSelfApproval: &pTrue,
LgtmActsAsApprove: true,
}
pluginConfig.Approve = append(pluginConfig.Approve, a)
parts := strings.Split(r, "/")
t := plugins.Trigger{
Repos: []string{r},
TrustedOrg: parts[0],
}
pluginConfig.Triggers = append(pluginConfig.Triggers, t)
// External Plugins
pluginConfig.ExternalPlugins[r] = externalPlugins.Items
}
return nil
}
if err := o.upsertPluginConfig(closure); err != nil {
return errors.Wrap(err, "upserting the plugins config")
}
return nil
}
func (o *Options) AddExternalProwPlugins(adds []plugins.ExternalPlugin) error {
closure := func(pluginConfig *plugins.Configuration, externalPlugins *ExternalPlugins) error {
for _, add := range adds {
foundIndex := -1
for i, p := range externalPlugins.Items {
if p.Name == add.Name {
foundIndex = i
break
}
}
if foundIndex < 0 {
externalPlugins.Items = append(externalPlugins.Items, add)
} else {
externalPlugins.Items[foundIndex] = add
}
}
return nil
}
if err := o.upsertPluginConfig(closure); err != nil {
return errors.Wrap(err, "upserting the external plugins config")
}
return nil
}
func (o *Options) GetReleaseJobs() ([]string, error) {
cm, err := o.KubeClient.CoreV1().ConfigMaps(o.NS).Get(ProwConfigMapName, metav1.GetOptions{})
if err != nil {
return nil, errors.Wrapf(err, "getting the release jobs from %q config map in namespace %q", ProwConfigMapName, o.NS)
}
prowConfig := &config.Config{}
err = yaml.Unmarshal([]byte(cm.Data[ProwConfigFilename]), &prowConfig)
if err != nil {
return nil, errors.Wrap(err, "unmarshaling prow config")
}
var jobs []string
for repo, p := range prowConfig.Postsubmits {
for _, q := range p {
for _, b := range q.Branches {
repo = strings.Replace(repo, ":", "", -1)
branch := prowBranchConfigToGitBranchName(b)
jobName := fmt.Sprintf("%s/%s", repo, branch)
if o.IgnoreBranch {
jobName = repo
}
jobs = append(jobs, jobName)
}
}
}
return jobs, nil
}
func (o *Options) GetPostSubmitJob(org, repo, branch string) (config.Postsubmit, error) {
p := config.Postsubmit{}
cm, err := o.KubeClient.CoreV1().ConfigMaps(o.NS).Get(ProwConfigMapName, metav1.GetOptions{})
if err != nil {
return p, errors.Wrapf(err, "getting the presubmit jobs from %q config map in namespace %q", ProwConfigMapName, o.NS)
}
prowConfig := &config.Config{}
err = yaml.Unmarshal([]byte(cm.Data[ProwConfigFilename]), &prowConfig)
if err != nil {
return p, errors.Wrap(err, "unmarshaling prow config")
}
key := fmt.Sprintf("%s/%s", org, repo)
postsubmits := prowConfig.Postsubmits[key]
err = config.SetPostsubmitRegexes(postsubmits)
if err != nil {
return p, errors.Wrap(err, "compiling prow postsubmit regexes")
}
for _, p := range postsubmits {
if p.Brancher.ShouldRun(branch) {
return p, nil
}
}
return p, fmt.Errorf("no prow config build spec found for %s/%s/%s", org, repo, branch)
}
// CreateProwJob creates a new ProbJob resource for the Prow build controller to run
func CreateProwJob(client kubernetes.Interface, ns string, j prowapi.ProwJob) (prowapi.ProwJob, error) {
retJob := prowapi.ProwJob{}
body, err := json.Marshal(j)
if err != nil {
return retJob, errors.Wrap(err, "marshalling the prow job")
}
resp, err := client.CoreV1().RESTClient().Post().RequestURI(fmt.Sprintf("/apis/prow.k8s.io/v1/namespaces/%s/prowjobs", ns)).Body(body).DoRaw()
if err != nil {
return retJob, fmt.Errorf("creating prowjob %v: %s", err, string(resp))
}
return retJob, err
}
// prowBranchConfigToGitBranchName converts a (prow) branch (regex)
// into a git branch name
func prowBranchConfigToGitBranchName(b string) string {
branch := strings.TrimLeft(b, "^")
branch = strings.TrimRight(branch, "$")
return branch
}