Recommendation panic

[Flóra Piszker]

Request (/recommender/api/v1/recommender/google/gke/us-central1/cluster):

{
  "provider": "google",
  "sumCpu": 8,
  "sumMem": 8,
  "minNodes": 3,
  "maxNodes": 5,
  "sameSize": true,
  "onDemandPct": 40,
  "service": "gke",
  "region": "us-central1",
  "zones": [
    "us-central1-a"
  ]
}

Log:

2018/10/02 10:50:02 [Recovery] 2018/10/02 - 10:50:02 panic recovered:
POST /recommender/api/v1/recommender/google/gke/us-central1/cluster HTTP/1.1
Accept: application/json, text/plain, */*
Accept-Encoding: gzip, deflate, br
Accept-Language: hu-HU,hu;q=0.9,en-US;q=0.8,en;q=0.7,fr;q=0.6,de;q=0.5,la;q=0.4
Content-Length: 167
Content-Type: application/json
Cookie: _ga=GA1.2.155283745.1534850751; _banzai_session=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-Tp5IQKFeI-0m7wMxspQ==; user_sess=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhdWQiOiJodHRwczovL3BpcGVsaW5lLmJhbnphaWNsb3VkLmNvbSIsImp0aSI6IjM3N2M1ZTkxLWM4YjQtNDM1MC05ZmRmLWQ3YjgwODQ3Yzk3NCIsImlhdCI6MTUzNjcwMDQ2NCwiaXNzIjoiaHR0cHM6Ly9iYW56YWljbG91ZC5jb20vIiwic3ViIjoiMTQiLCJzY29wZSI6ImFwaTppbnZva2UiLCJ0eXBlIjoidXNlciIsInRleHQiOiJjb2xpbjAxNCJ9.FuFTWrMgmdX7NtSeWNmi1c1eUU3EmSZaBrgnh0E7ndQ; _gid=GA1.2.933194258.1538468502
Origin: https://local.dev.banzaicloud.com:8888
Referer: https://local.dev.banzaicloud.com:8888/banzaicloud/cluster/create/gke
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36
X-Forwarded-For: 10.4.5.1
X-Forwarded-Port: 443
X-Forwarded-Proto: https
X-Forwarded-Server: pipeline-cp-traefik-96f89c9f7-qz4q7
X-Real-Ip: 10.4.5.1


runtime error: invalid memory address or nil pointer dereference
/usr/local/go/src/runtime/panic.go:491 (0x42c4a2)
/usr/local/go/src/runtime/panic.go:63 (0x42b3ad)
/usr/local/go/src/runtime/signal_unix.go:367 (0x4429fb)
[GIN] 2018/10/02 - 10:50:02 | 500 |   50.950655ms |        10.4.5.1 | POST     /recommender/api/v1/recommender/google/gke/us-central1/cluster
/go/src/github.com/banzaicloud/telescopes/internal/app/telescopes/api/validate.go:132 (0xeb3af5)
/go/src/github.com/banzaicloud/telescopes/vendor/gopkg.in/go-playground/validator.v8/validator.go:758 (0x707d8c)
/go/src/github.com/banzaicloud/telescopes/vendor/gopkg.in/go-playground/validator.v8/validator.go:679 (0x708309)
/go/src/github.com/banzaicloud/telescopes/vendor/gopkg.in/go-playground/validator.v8/validator.go:563 (0x707541)
/go/src/github.com/banzaicloud/telescopes/vendor/gopkg.in/go-playground/validator.v8/validator.go:524 (0x707119)
/go/src/github.com/banzaicloud/telescopes/vendor/gopkg.in/go-playground/validator.v8/validator.go:504 (0x706ef2)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/gin-gonic/gin/binding/default_validator.go:24 (0x91d023)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/gin-gonic/gin/binding/binding.go:99 (0x91cf3d)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/gin-gonic/gin/binding/json.go:42 (0x91f55e)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/gin-gonic/gin/binding/json.go:27 (0x91f39f)
<autogenerated>:1 (0x920411)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/gin-gonic/gin/context.go:509 (0x95c612)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/gin-gonic/gin/context.go:476 (0x95c166)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/gin-gonic/gin/context.go:464 (0x95c066)
/go/src/github.com/banzaicloud/telescopes/internal/app/telescopes/api/handlers.go:69 (0xeb1ff6)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/gin-gonic/gin/context.go:108 (0x95a542)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/banzaicloud/productinfo/pkg/logger/middleware.go:45 (0x9cdba5)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/gin-gonic/gin/context.go:108 (0x95a542)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/banzaicloud/productinfo/pkg/logger/middleware.go:107 (0x9cd8ff)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/banzaicloud/productinfo/pkg/logger/middleware.go:93 (0x9ce363)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/gin-gonic/gin/context.go:108 (0x95a542)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/gin-gonic/gin/recovery.go:47 (0x96d039)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/gin-gonic/gin/context.go:108 (0x95a542)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/gin-gonic/gin/logger.go:83 (0x96c2db)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/gin-gonic/gin/context.go:108 (0x95a542)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/gin-gonic/gin/gin.go:359 (0x963b35)
/go/src/github.com/banzaicloud/telescopes/vendor/github.com/gin-gonic/gin/gin.go:326 (0x9632ca)
/usr/local/go/src/net/http/server.go:2619 (0x6919c3)
/usr/local/go/src/net/http/server.go:1801 (0x68daac)
/usr/local/go/src/runtime/asm_amd64.s:2337 (0x45aad0)

[Attila Prekopcsák]

fixed #151