545 lines
14 KiB
Go
545 lines
14 KiB
Go
package controllers
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import (
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"encoding/base64"
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"encoding/json"
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"fmt"
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"oc-datacenter/conf"
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"oc-datacenter/infrastructure"
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"oc-datacenter/models"
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"slices"
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"time"
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beego "github.com/beego/beego/v2/server/web"
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jwt "github.com/golang-jwt/jwt/v5"
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"gopkg.in/yaml.v2"
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v1 "k8s.io/api/core/v1"
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)
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type KubeInfo struct {
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Url *string
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KubeCA *string
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KubeCert *string
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KubeKey *string
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}
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type RemoteKubeconfig struct {
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Data *string
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}
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type KubeUser struct {
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Name string
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User struct {
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Token string
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}
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}
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type KubeconfigToken struct {
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ApiVersion string `yaml:"apiVersion"`
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Kind string `yaml:"kind"`
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Preferences string `yaml:"preferences"`
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CurrentContext string `yaml:"current-context"`
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Clusters []struct{
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Cluster struct{
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CA string `yaml:"certificate-authority-data"`
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Server string `yaml:"server"`
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} `yaml:"cluster"`
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Name string `yaml:"name"`
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} `yaml:"clusters"`
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Contexts []struct{
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Context struct{
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Cluster string `yaml:"cluster"`
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User string `yaml:"user"`
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} `yaml:"context"`
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Name string `yaml:"name"`
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} `yaml:"contexts"`
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Users []struct{
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Name string `yaml:"name"`
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User struct {
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Token string `yaml:"token"`
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} `yaml:"user"`
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} `yaml:"users"`
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}
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// Operations about the admiralty objects of the datacenter
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type AdmiraltyController struct {
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beego.Controller
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}
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// @Title GetAllTargets
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// @Description find all Admiralty Target
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// @Success 200
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// @router /targets [get]
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func (c *AdmiraltyController) GetAllTargets() {
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serv, err := infrastructure.NewService()
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if err != nil {
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// change code to 500
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HandleControllerErrors(c.Controller,500,&err,nil)
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// c.Ctx.Output.SetStatus(500)
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// c.ServeJSON()
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// c.Data["json"] = map[string]string{"error": err.Error()}
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return
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}
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res, err := serv.GetTargets(c.Ctx.Request.Context())
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c.Data["json"] = res
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c.ServeJSON()
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}
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// @Title GetOneTarget
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// @Description find one Admiralty Target
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// @Param id path string true "the name of the target to get"
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// @Success 200
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// @router /targets/:execution [get]
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func (c *AdmiraltyController) GetOneTarget() {
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id := c.Ctx.Input.Param(":execution")
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serv, err := infrastructure.NewService()
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if err != nil {
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// change code to 500
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c.Ctx.Output.SetStatus(500)
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c.ServeJSON()
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c.Data["json"] = map[string]string{"error": err.Error()}
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return
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}
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res, err := serv.GetTargets(c.Ctx.Request.Context())
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id = "target-"+id
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found := slices.Contains(res,id)
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if !found {
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c.Ctx.Output.SetStatus(404)
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c.ServeJSON()
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}
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c.Data["json"] = id
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c.ServeJSON()
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}
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// @Title CreateSource
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// @Description Create an Admiralty Source on remote cluster
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// @Param execution path string true "execution id of the workflow"
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// @Success 201
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// @router /source/:execution [post]
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func (c *AdmiraltyController) CreateSource() {
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execution := c.Ctx.Input.Param(":execution")
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fmt.Println("execution :: ", execution)
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fmt.Println("input :: ", c.Ctx.Input)
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serv, err := infrastructure.NewKubernetesService()
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if err != nil {
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// change code to 500
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c.Ctx.Output.SetStatus(500)
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c.ServeJSON()
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c.Data["json"] = map[string]string{"error": err.Error()}
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c.ServeJSON()
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return
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}
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res, err := serv.CreateAdmiraltySource(c.Ctx.Request.Context(),execution)
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if err != nil {
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// change code to 500
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = map[string]string{"error": err.Error()}
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c.ServeJSON()
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return
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}
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// TODO : Return a description of the created resource
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var respData map[string]interface{}
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err = json.Unmarshal(res,&respData)
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c.Ctx.Output.SetStatus(201)
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c.Data["json"] = respData
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c.ServeJSON()
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}
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// @Title CreateAdmiraltyTarget
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// @Description Create an Admiralty Target in the namespace associated to the executionID
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// @Param execution path string true "execution id of the workflow"
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// @Success 201
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// @router /target/:execution [post]
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func (c *AdmiraltyController) CreateAdmiraltyTarget(){
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var data map[string]interface{}
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execution := c.Ctx.Input.Param(":execution")
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serv, err := infrastructure.NewService()
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if err != nil {
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// change code to 500
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = map[string]string{"error": err.Error()}
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c.ServeJSON()
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return
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}
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resp, err := serv.CreateAdmiraltyTarget(c.Ctx.Request.Context(),execution)
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if err != nil {
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// change code to 500
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = map[string]string{"error": err.Error()}
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c.ServeJSON()
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return
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}
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if resp == nil {
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fmt.Println("Error while trying to create Admiralty target")
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fmt.Println(resp)
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fmt.Println(err)
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c.Ctx.Output.SetStatus(401)
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c.Data["json"] = map[string]string{"error" : "Could not perform the action" }
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c.ServeJSON()
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return
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}
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err = json.Unmarshal(resp,&data)
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if err != nil {
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// change code to 500
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c.Ctx.Output.SetStatus(500)
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c.ServeJSON()
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c.Data["json"] = map[string]string{"error": err.Error()}
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return
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}
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c.Ctx.Output.SetStatus(201)
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c.Data["json"] = data
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c.ServeJSON()
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}
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// @Title GetKubeSecret
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// @Description Retrieve the secret created from a Kubeconfig that will be associated to an Admiralty Target
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// @Param execution path string true "execution id of the workflow"
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// @Success 200
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// @router /secret/:execution [get]
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func(c *AdmiraltyController) GetKubeSecret() {
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var data map[string]interface{}
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execution := c.Ctx.Input.Param(":execution")
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serv, err := infrastructure.NewService()
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if err != nil {
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// change code to 500
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = map[string]string{"error": err.Error()}
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c.ServeJSON()
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return
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}
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resp, err := serv.GetKubeconfigSecret(c.Ctx.Request.Context(),execution)
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if err != nil {
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// change code to 500
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = map[string]string{"error": err.Error()}
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c.ServeJSON()
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return
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}
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if resp == nil {
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c.Ctx.Output.SetStatus(404)
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c.ServeJSON()
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return
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}
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err = json.Unmarshal(resp,&data)
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if err != nil {
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// change code to 500
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c.Ctx.Output.SetStatus(500)
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c.ServeJSON()
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c.Data["json"] = map[string]string{"error": err.Error()}
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return
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}
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c.Data["json"] = data
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c.ServeJSON()
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}
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// @Title CreateKubeSecret
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// @Description Creat a secret from a Kubeconfig that will be associated to an Admiralty Target
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// @Param execution path string true "execution id of the workflow"
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// @Param kubeconfig body controllers.RemoteKubeconfig true "Kubeconfig to use when creating secret"
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// @Success 201
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// @router /secret/:execution [post]
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func (c *AdmiraltyController) CreateKubeSecret() {
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var kubeconfig RemoteKubeconfig
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var respData map[string]interface{}
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data := c.Ctx.Input.CopyBody(100000)
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err := json.Unmarshal(data, &kubeconfig)
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if err != nil {
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fmt.Println("Error when retrieving the data for kubeconfig from request")
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fmt.Println(err)
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = map[string]string{"error": err.Error()}
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c.ServeJSON()
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return
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}
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execution := c.Ctx.Input.Param(":execution")
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serv, err := infrastructure.NewService()
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if err != nil {
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// change code to 500
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = map[string]string{"error": err.Error()}
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c.ServeJSON()
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return
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}
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resp, err := serv.CreateKubeconfigSecret(c.Ctx.Request.Context(),*kubeconfig.Data,execution)
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if err != nil {
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// change code to 500
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = map[string]string{"error": err.Error()}
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c.ServeJSON()
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return
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}
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err = json.Unmarshal(resp,&respData)
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c.Ctx.Output.SetStatus(201)
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c.Data["json"] = respData
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c.ServeJSON()
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}
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// @name GetAdmiraltyNodes
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// @description Allows user to test if an admiralty connection has already been established : Target and valid Secret set up on the local host and Source set up on remote host
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// @Param execution path string true "execution id of the workflow"
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// @Success 200
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// @router /node/:execution [get]
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func (c *AdmiraltyController) GetNodeReady(){
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var secret v1.Secret
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execution := c.Ctx.Input.Param(":execution")
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serv, err := infrastructure.NewService()
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if err != nil {
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// change code to 500
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = map[string]string{"error": err.Error()}
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c.ServeJSON()
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return
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}
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node, err := serv.GetOneNode(c.Ctx.Request.Context(),execution)
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if err != nil {
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// change code to 500
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = map[string]string{"error": err.Error()}
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c.ServeJSON()
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return
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}
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if node == nil {
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c.Ctx.Output.SetStatus(404)
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c.Data["json"] = map[string]string{
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"error" : "the node for " + execution + " can't be found, make sure both target and source resources are set up on local and remote hosts",
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}
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c.ServeJSON()
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return
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}
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resp, err := serv.GetKubeconfigSecret(c.Ctx.Request.Context(),execution)
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if err != nil {
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// change code to 500
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = map[string]string{"error": err.Error()}
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c.ServeJSON()
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return
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}
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if resp == nil {
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = map[string]string{"error": "Nodes was up but the secret can't be found"}
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c.ServeJSON()
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return
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}
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// Extract JWT token RS265 encoded
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var editedKubeconfig map[string]interface{}
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json.Unmarshal(resp,&secret)
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byteEditedKubeconfig := secret.Data["config"]
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err = yaml.Unmarshal(byteEditedKubeconfig,&editedKubeconfig)
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// err = json.Unmarshal(byteEditedKubeconfig,&editedKubeconfig)
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if err != nil {
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fmt.Println("Error while retrieving the kubeconfig from secret-",execution)
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fmt.Println(err)
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = err
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c.ServeJSON()
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return
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}
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token, err := retrieveTokenFromKonfig(editedKubeconfig)
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if err != nil {
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fmt.Println("Error while trying to retrieve token for kubeconfing")
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fmt.Println(err)
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HandleControllerErrors(c.Controller,500,&err,nil)
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}
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// Decode token
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isExpired, err := isTokenExpired(token)
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if err != nil {
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fmt.Println("Error veryfing token's expiration")
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = err
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c.ServeJSON()
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}
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if *isExpired {
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c.Data["json"] = map[string]string{
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"token" : "token in the secret is expired and must be regenerated",
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}
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c.Ctx.Output.SetStatus(410)
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c.ServeJSON()
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}
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c.Data["json"] = map[string]bool{"ok": true}
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c.ServeJSON()
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}
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func retrieveTokenFromKonfig(editedKubeconfig map[string]interface{}) (string,error) {
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var kubeUsers []KubeUser
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b, err := yaml.Marshal(editedKubeconfig["users"])
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if err != nil {
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fmt.Println("Error while retrieving the users attribute from the Kubeconfig")
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fmt.Println(err)
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return "", err
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}
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err = yaml.Unmarshal(b,&kubeUsers)
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if err != nil {
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fmt.Println("Error while unmarshalling users attribute from kubeconfig")
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fmt.Println(err)
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return "", nil
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}
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fmt.Println(kubeUsers)
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token := kubeUsers[0].User.Token
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return token, nil
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}
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func isTokenExpired(token string) (*bool, error){
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t, _, err := new(jwt.Parser).ParseUnverified(token, jwt.MapClaims{})
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if err != nil {
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fmt.Println("couldn't decode token")
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return nil, err
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}
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expiration, err := t.Claims.GetExpirationTime()
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if err != nil {
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fmt.Println("Error while checking token's expiration time")
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return nil, err
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}
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fmt.Println("Expiration date : " + expiration.UTC().Format("2006-01-02T15:04:05"))
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expired := expiration.Unix() < time.Now().Unix()
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return &expired, nil
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}
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// @name Get Admiralty Kubeconfig
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// @description Retrieve a kubeconfig from the host with the token to authenticate as the SA from the namespace identified with execution id
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// @Param execution path string true "execution id of the workflow"
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// @Success 200
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// @router /kubeconfig/:execution [get]
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func (c *AdmiraltyController) GetAdmiraltyKubeconfig() {
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execution := c.Ctx.Input.Param(":execution")
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serv, err := infrastructure.NewService()
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if err != nil {
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// change code to 500
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = map[string]string{"error": err.Error()}
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c.ServeJSON()
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return
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}
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generatedToken, err := serv.GenerateToken(c.Ctx.Request.Context(),execution,3600)
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if err != nil {
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fmt.Println("Couldn't generate a token for ns-", execution)
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fmt.Println(err)
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = map[string]string{"error": err.Error()}
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c.ServeJSON()
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return
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}
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kubeconfig, err := NewHostKubeWithToken(generatedToken)
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if err != nil {
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fmt.Println("Could not retrieve the Kubeconfig edited with token")
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fmt.Println(err)
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = map[string]string{"error": err.Error()}
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c.ServeJSON()
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return
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}
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b, err := json.Marshal(kubeconfig)
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if err != nil {
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fmt.Println("Error while marshalling kubeconfig")
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c.Ctx.Output.SetStatus(500)
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c.Data["json"] = map[string]string{"error": err.Error()}
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c.ServeJSON()
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}
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encodedKubeconfig := base64.StdEncoding.EncodeToString(b)
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c.Data["json"] = map[string]string{
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"data": encodedKubeconfig,
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}
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c.ServeJSON()
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}
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func NewHostKubeWithToken(token string) (*models.KubeConfigValue, error){
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if len(token) == 0 {
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return nil, fmt.Errorf("you didn't provide a token to be inserted in the Kubeconfig")
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}
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encodedCA := base64.StdEncoding.EncodeToString([]byte(conf.GetConfig().KubeCA))
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hostKube := models.KubeConfigValue{
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APIVersion: "v1",
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CurrentContext: "default",
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Kind: "Config",
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Preferences: struct{}{},
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Clusters: []models.KubeconfigNamedCluster{
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{
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Name: "default",
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Cluster: models.KubeconfigCluster{
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Server: "https://" + conf.GetConfig().KubeHost + ":6443",
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CertificateAuthorityData: encodedCA,
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},
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},
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},
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Contexts: []models.KubeconfigNamedContext{
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{
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Name: "default",
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Context: models.KubeconfigContext{
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Cluster: "default",
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User: "default",
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},
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},
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},
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Users: []models.KubeconfigUser{
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models.KubeconfigUser{
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Name: "default",
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User: models.KubeconfigUserKeyPair{
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Token: token,
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},
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},
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},
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}
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return &hostKube, nil
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} |