feat(webapp): add go controller for errata endpoint

RHINENG-13555

deploy/clowdapp.yaml

@@ -53,6 +53,8 @@ objects:
           value: ${NEWER_RELEASEVER_CSAF}
         - name: ENABLE_GO_CVES
           value: ${ENABLE_GO_CVES}
+        - name: ENABLE_GO_ERRATA
+          value: ${ENABLE_GO_ERRATA}
         resources:
           limits:
             cpu: ${CPU_LIMIT_WEBAPP_GO}
@@ -499,3 +501,6 @@ parameters:
 - name: ENABLE_GO_CVES
   description: Enable go implementation of the cves endpoint
   value: "false"
+- name: ENABLE_GO_ERRATA
+  description: Enable go implementation of the errata endpoint
+  value: "false"

vmaas-go/base/utils/config.go

@@ -46,6 +46,7 @@ type Config struct {
 	CacheRefreshInterval time.Duration
 	EnableProfiler       bool
 	EnableGoCves         bool
+	EnableGoErrata       bool
 
 	// lib
 	UnfixedEvalEnabled    bool
@@ -136,6 +137,7 @@ func initEnv() {
 	Cfg.NewerReleaseverRepos = GetBoolEnvOrDefault("NEWER_RELEASEVER_REPOS", true)
 	Cfg.NewerReleaseverCsaf = GetBoolEnvOrDefault("NEWER_RELEASEVER_CSAF", true)
 	Cfg.EnableGoCves = GetBoolEnvOrDefault("ENABLE_GO_CVES", false)
+	Cfg.EnableGoErrata = GetBoolEnvOrDefault("ENABLE_GO_ERRATA", false)
 }
 
 func (e *Endpoint) BuildURL(scheme string) string {

vmaas-go/webapp/controllers/errata.go

@@ -0,0 +1,44 @@
+package controllers
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/redhatinsights/vmaas-lib/vmaas"
+	"github.com/redhatinsights/vmaas/base/core"
+	"github.com/redhatinsights/vmaas/base/utils"
+)
+
+func ErrataHandler(c *gin.Context) {
+	if !isCacheLoaded(c) {
+		return
+	}
+	erratum := c.Param("erratum")
+	req := vmaas.ErrataRequest{Errata: []string{erratum}}
+
+	res, err := core.VmaasAPI.Errata(&req)
+	if err != nil {
+		utils.LogAndRespError(c, err)
+		return
+	}
+	c.JSON(http.StatusOK, res)
+}
+
+func ErrataPostHandler(c *gin.Context) {
+	if !isCacheLoaded(c) {
+		return
+	}
+	req := vmaas.ErrataRequest{}
+	err := bindValidateJSON(c, &req)
+	if err != nil {
+		utils.LogAndRespBadRequest(c, err)
+		return
+	}
+
+	errata, err := core.VmaasAPI.Errata(&req)
+	if err != nil {
+		utils.LogAndRespError(c, err)
+		return
+	}
+	c.JSON(http.StatusOK, errata)
+}

vmaas-go/webapp/routes/routes.go

@@ -18,4 +18,8 @@ func InitAPI(api *gin.RouterGroup) {
 		api.GET("/cves/:cve", controllers.CvesHandler)
 		api.POST("/cves", controllers.CvesPostHandler)
 	}
+	if utils.Cfg.EnableGoErrata {
+		api.GET("/errata/:erratum", controllers.ErrataHandler)
+		api.POST("/errata", controllers.ErrataPostHandler)
+	}
 }