Update Go and dependencies

.drone.yml

@@ -1,10 +1,11 @@
+---
 kind: pipeline
 type: kubernetes
 name: default
 
 steps:
 - name: test
-  image: golang:1.19.5
+  image: golang:1.20.5
   volumes:
   - name: deps
     path: /go
@@ -28,3 +29,8 @@ steps:
       from_secret: harbor_username
     password:
       from_secret: harbor_password
+---
+kind: signature
+hmac: 004f812ff29a1e2546eeafbf449c36c901f69b5f2591f83152eebde7258453fd
+
+...

Dockerfile

@@ -1,11 +1,11 @@
-FROM golang:1.19.5-alpine AS build
+FROM golang:1.20.5-alpine AS build
 RUN apk --no-cache add git
 
 WORKDIR /go/src/github.com/abh/geoipapi
 ADD . /go/src/github.com/abh/geoipapi
 RUN go install -v ./...
 
-FROM alpine:3.17.1
+FROM alpine:3.18
 USER root
 RUN apk --no-cache add ca-certificates
 

go.mod

@@ -6,5 +6,5 @@ require github.com/oschwald/geoip2-golang v1.8.0
 
 require (
 	github.com/oschwald/maxminddb-golang v1.10.0 // indirect
-	golang.org/x/sys v0.4.0 // indirect
+	golang.org/x/sys v0.8.0 // indirect
 )

go.sum

@@ -7,4 +7,6 @@ github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZb
 github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
 golang.org/x/sys v0.4.0 h1:Zr2JFtRQNX3BCZ8YtxRE9hNJYC8J6I1MVbMg6owUp18=
 golang.org/x/sys v0.4.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.8.0 h1:EBmGv8NaZBZTWvrbjNoL6HVt+IVy3QDQpJs7VRIw3tU=
+golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=