diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index be70cba..f738c6b 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -24,7 +24,7 @@ jobs:
 
       - name: Run unit testing and code coverage
         run: |
-          docker run -eCOVERALLS_TOKEN -uroot --network host -i --volume $GITHUB_WORKSPACE:/go/src/github.com/infrawatch/smart-gateway:z --workdir /go/src/github.com/infrawatch/smart-gateway centos:8 /bin/sh -c 'sh ./build/test-framework/run_tests.sh'
+          docker run -eCOVERALLS_TOKEN -uroot --network host -i --volume $GITHUB_WORKSPACE:/go/src/github.com/infrawatch/smart-gateway:z --workdir /go/src/github.com/infrawatch/smart-gateway registry.access.redhat.com/ubi8 /bin/sh -c 'sh ./build/test-framework/run_tests.sh'
 
       - name: Verify image builds
         run: |
diff --git a/go.mod b/go.mod
index c354a82..bf03d8a 100644
--- a/go.mod
+++ b/go.mod
@@ -12,7 +12,6 @@ require (
 	github.com/golang/protobuf v1.1.0 // indirect
 	github.com/json-iterator/go v0.0.0-20180701071628-ab8a2e0c74be
 	github.com/mailru/easyjson v0.0.0-20180717111219-efc7eb8984d6 // indirect
-	github.com/mattn/goveralls v0.0.6 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 // indirect
@@ -25,9 +24,7 @@ require (
 	github.com/prometheus/procfs v0.0.0-20180705121852-ae68e2d4c00f // indirect
 	github.com/satori/go.uuid v1.2.1-0.20180103174451-36e9d2ebbde5
 	github.com/stretchr/testify v1.3.0
-	golang.org/x/lint v0.0.0-20200302205851-738671d3881b // indirect
-	golang.org/x/tools v0.0.0-20200716134326-a8f9df4c9543 // indirect
+	golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208 // indirect
 	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
-	honnef.co/go/tools v0.0.1-2020.1.4 // indirect
 	qpid.apache.org v0.0.0-20190307183443-7bf92569070b
 )
diff --git a/go.sum b/go.sum
index b4b07e5..9f098c0 100644
--- a/go.sum
+++ b/go.sum
@@ -1,7 +1,5 @@
 collectd.org v0.3.0 h1:iNBHGw1VvPJxH2B6RiFWFZ+vsjo1lCdRszBeOuwGi00=
 collectd.org v0.3.0/go.mod h1:A/8DzQBkF6abtvrT2j/AU/4tiBgJWYyh0y/oB/4MlWE=
-github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
-github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/MakeNowJust/heredoc v0.0.0-20171113091838-e9091a26100e h1:eb0Pzkt15Bm7f2FFYv7sjY7NPFi3cPkS3tv1CcrFBWA=
 github.com/MakeNowJust/heredoc v0.0.0-20171113091838-e9091a26100e/go.mod h1:64YHyfSL2R96J44Nlwm39UHepQbyR5q10x7iYa1ks2E=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973 h1:xJ4a3vCFaGF/jqvzLMYoU8P317H5OQ+Via4RmuPwCS0=
@@ -15,19 +13,15 @@ github.com/gogo/protobuf v1.3.1 h1:DqDEcV5aeaTmdFBePNpYsp3FlcVH/2ISVVM9Qf8PSls=
 github.com/gogo/protobuf v1.3.1/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
 github.com/golang/protobuf v1.1.0 h1:0iH4Ffd/meGoXqF2lSAhZHt8X+cPgkfn/cb6Cce5Vpc=
 github.com/golang/protobuf v1.1.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
 github.com/json-iterator/go v0.0.0-20180701071628-ab8a2e0c74be h1:AHimNtVIpiBjPUhEF5KNCkrUyqTSA5zWUl8sQ2bfGBE=
 github.com/json-iterator/go v0.0.0-20180701071628-ab8a2e0c74be/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
 github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
-github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/mailru/easyjson v0.0.0-20180717111219-efc7eb8984d6 h1:8/+Y8SKf0xCZ8cCTfnrMdY7HNzlEjPAt3bPjalNb6CA=
 github.com/mailru/easyjson v0.0.0-20180717111219-efc7eb8984d6/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
-github.com/mattn/goveralls v0.0.6 h1:cr8Y0VMo/MnEZBjxNN/vh6G90SZ7IMb6lms1dzMoO+Y=
-github.com/mattn/goveralls v0.0.6/go.mod h1:h8b4ow6FxSPMQHF6o2ve3qsclnffZjYTNEKmLesRwqw=
 github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
@@ -50,54 +44,16 @@ github.com/prometheus/common v0.0.0-20180518154759-7600349dcfe1 h1:osmNoEW2SCW3L
 github.com/prometheus/common v0.0.0-20180518154759-7600349dcfe1/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
 github.com/prometheus/procfs v0.0.0-20180705121852-ae68e2d4c00f h1:c9M4CCa6g8WURSsbrl3lb/w/G1Z5xZpYvhhjdcVDOkE=
 github.com/prometheus/procfs v0.0.0-20180705121852-ae68e2d4c00f/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
-github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
 github.com/satori/go.uuid v1.2.1-0.20180103174451-36e9d2ebbde5 h1:Jw7W4WMfQDxsXvfeFSaS2cHlY7bAF4MGrgnbd0+Uo78=
 github.com/satori/go.uuid v1.2.1-0.20180103174451-36e9d2ebbde5/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
-github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/lint v0.0.0-20200302205851-738671d3881b h1:Wh+f8QHJXR411sJR8/vRBTZ7YapZaRvUcLFFJhusH0k=
-golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
-golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
-golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
-golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.3.0 h1:RM4zey1++hCTbCVQfnWeKs9/IEsaBLA8vTkd0WVtmH4=
-golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
-golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208 h1:qwRHBd0NqMbJxfbotnDhm2ByMI1Shq4Y6oRJo21SGJA=
 golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563 h1:NIou6eNFigscvKJmsbyez16S2cIS6idossORlFtSt2E=
 golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20191130070609-6e064ea0cf2d/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
-golang.org/x/tools v0.0.0-20200522201501-cb1345f3a375/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
-golang.org/x/tools v0.0.0-20200716134326-a8f9df4c9543 h1:onHykNOjYYTQ3AMcREXdnzWl4I4CIs9BMiMkJ7ctODc=
-golang.org/x/tools v0.0.0-20200716134326-a8f9df4c9543/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA=
-golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
 gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
-honnef.co/go/tools v0.0.1-2020.1.4 h1:UoveltGrhghAA7ePc+e+QYDHXrBps2PqFZiHkGR/xK8=
-honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
 qpid.apache.org v0.0.0-20190307183443-7bf92569070b h1:ulU/uc022LxD2PTeDuEb285U7xaA6SQpnBcD9V0UnAk=
 qpid.apache.org v0.0.0-20190307183443-7bf92569070b/go.mod h1:LcmRBnAgu/8vrdGyrBmSmmLVRjUmahQY0AAvNkSmBYk=
diff --git a/internal/pkg/metrics/incoming/ceilometer.go b/internal/pkg/metrics/incoming/ceilometer.go
index ceba857..bbb69d3 100644
--- a/internal/pkg/metrics/incoming/ceilometer.go
+++ b/internal/pkg/metrics/incoming/ceilometer.go
@@ -201,22 +201,22 @@ func (c *CeilometerMetric) GetLabels() map[string]string {
 		labels[c.Plugin] = c.PluginInstance
 	}
 	labels["publisher"] = c.Publisher
-	if ctype, ok := c.Payload["counter_type"]; ok {
-		labels["type"] = ctype.(string)
+	if ctype, ok := c.Payload["counter_type"].(string); ok {
+		labels["type"] = ctype
 	} else {
 		labels["type"] = "base"
 	}
-	if cproj, ok := c.Payload["project_id"]; ok {
-		labels["project"] = cproj.(string)
+	if cproj, ok := c.Payload["project_id"].(string); ok {
+		labels["project"] = cproj
 	}
-	if cres, ok := c.Payload["resource_id"]; ok {
-		labels["resource"] = cres.(string)
+	if cres, ok := c.Payload["resource_id"].(string); ok {
+		labels["resource"] = cres
 	}
-	if cunit, ok := c.Payload["counter_unit"]; ok {
-		labels["unit"] = cunit.(string)
+	if cunit, ok := c.Payload["counter_unit"].(string); ok {
+		labels["unit"] = cunit
 	}
-	if cname, ok := c.Payload["counter_name"]; ok {
-		labels["counter"] = cname.(string)
+	if cname, ok := c.Payload["counter_name"].(string); ok {
+		labels["counter"] = cname
 	}
 	return labels
 }
diff --git a/internal/pkg/saelastic/client.go b/internal/pkg/saelastic/client.go
index 3104864..9b4deed 100644
--- a/internal/pkg/saelastic/client.go
+++ b/internal/pkg/saelastic/client.go
@@ -58,7 +58,6 @@ func createTLSClient(serverName string, certFile string, keyFile string, caFile
 	} else {
 		tlsConfig.ServerName = serverName
 	}
-	tlsConfig.BuildNameToCertificate()
 	debuges("InsecureSkipVerify is set to %t", tlsConfig.InsecureSkipVerify)
 
 	return &http.Client{
diff --git a/tests/internal_pkg/metrics_incoming_test.go b/tests/internal_pkg/metrics_incoming_test.go
index ecfd73c..6380481 100644
--- a/tests/internal_pkg/metrics_incoming_test.go
+++ b/tests/internal_pkg/metrics_incoming_test.go
@@ -224,3 +224,22 @@ func TestCeilometerIncoming(t *testing.T) {
 		}
 	})
 }
+
+func TestCeilometerGetLabels(t *testing.T) {
+	// test data
+	cm := incoming.CeilometerMetric{
+		Payload: map[string]interface{}{},
+	}
+
+	t.Run("Missing fields", func(t *testing.T) {
+		cm.GetLabels()
+	})
+
+	t.Run("Wrong field type", func(t *testing.T) {
+		cm.Payload["project_id"] = nil
+		cm.Payload["resource_id"] = nil
+		cm.Payload["counter_unit"] = nil
+		cm.Payload["counter_name"] = nil
+		cm.GetLabels()
+	})
+}