Fix dockerfile and update client go version

.drone.yml

@@ -4,11 +4,11 @@ workspace:
 
 pipeline:
   test:
-    image: golang:1.16
+    image: golang:1.18
     commands:
       - GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go test -v -cover $(go list ./...)
   build:
-    image: golang:1.16
+    image: golang:1.18
     commands:
       - make build
 

Dockerfile

@@ -1,5 +1,11 @@
+FROM alpine:3 as base
+
+RUN apk add -U --no-cache ca-certificates
+
 FROM scratch
 
+COPY --from=base /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+
 ADD bin/hermod-linux-amd64 hermod
 
 ENTRYPOINT ["/hermod"]

go.mod

@@ -1,17 +1,57 @@
 module github.com/uswitch/hermod
 
-go 1.16
+go 1.18
 
 require (
-	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 // indirect
-	github.com/alecthomas/units v0.0.0-20210208195552-ff826a37aa15 // indirect
 	github.com/getsentry/sentry-go v0.12.0
-	github.com/prometheus/client_golang v1.11.0 // indirect
+	github.com/prometheus/client_golang v1.11.0
 	github.com/sirupsen/logrus v1.8.1
 	github.com/slack-go/slack v0.9.1
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
-	k8s.io/api v0.21.1
-	k8s.io/apimachinery v0.21.1
-	k8s.io/client-go v0.21.1
-	sigs.k8s.io/structured-merge-diff/v4 v4.1.0 // indirect
+	k8s.io/api v0.23.10
+	k8s.io/apimachinery v0.23.10
+	k8s.io/client-go v0.23.10
+)
+
+require (
+	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 // indirect
+	github.com/alecthomas/units v0.0.0-20210208195552-ff826a37aa15 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.1.1 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/evanphx/json-patch v4.12.0+incompatible // indirect
+	github.com/go-logr/logr v1.2.0 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/google/go-cmp v0.5.5 // indirect
+	github.com/google/gofuzz v1.1.0 // indirect
+	github.com/googleapis/gnostic v0.5.5 // indirect
+	github.com/gorilla/websocket v1.4.2 // indirect
+	github.com/imdario/mergo v0.3.5 // indirect
+	github.com/json-iterator/go v1.1.12 // 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 v1.0.2 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/prometheus/client_model v0.2.0 // indirect
+	github.com/prometheus/common v0.26.0 // indirect
+	github.com/prometheus/procfs v0.6.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	golang.org/x/net v0.0.0-20211209124913-491a49abca63 // indirect
+	golang.org/x/oauth2 v0.0.0-20210819190943-2bc19b11175f // indirect
+	golang.org/x/sys v0.0.0-20211007075335-d3039528d8ac // indirect
+	golang.org/x/term v0.0.0-20210615171337-6886f2dfbf5b // indirect
+	golang.org/x/text v0.3.7 // indirect
+	golang.org/x/time v0.0.0-20210723032227-1f47c861a9ac // indirect
+	google.golang.org/appengine v1.6.7 // indirect
+	google.golang.org/protobuf v1.27.1 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
+	k8s.io/klog/v2 v2.30.0 // indirect
+	k8s.io/kube-openapi v0.0.0-20211115234752-e816edb12b65 // indirect
+	k8s.io/utils v0.0.0-20211116205334-6203023598ed // indirect
+	sigs.k8s.io/json v0.0.0-20211020170558-c049b76a60c6 // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.2.1 // indirect
+	sigs.k8s.io/yaml v1.2.0 // indirect
 )