Update build to use go1.18 (#45)

* Update build to use go1.18

.travis.yml

@@ -1,4 +1,6 @@
 language: go
+go:
+ - 1.18
 
 # From https://github.com/travis-ci/travis-ci/issues/8891#issuecomment-353403729
 before_install:
@@ -10,7 +12,7 @@ install:
 - go get -v -t ./...
 
 before_script:
-- go get github.com/mattn/goveralls
+- go install github.com/mattn/goveralls@latest
 
 script:
 - go vet ./...

Dockerfile

@@ -1,15 +1,15 @@
 # Build packet-headers
-FROM golang:1.12-alpine as build
+FROM golang:1.18-alpine3.16 as build
 RUN apk --no-cache add libpcap-dev git gcc libc-dev
 COPY . /go/src/github.com/m-lab/packet-headers
 WORKDIR /go/src/github.com/m-lab/packet-headers
-RUN go get -v \
+RUN go install -v \
       -ldflags "-X github.com/m-lab/go/prometheusx.GitShortCommit=$(git log -1 --format=%h)$(git diff --quiet || echo dirty)" \
       .
 RUN chmod a+rx /go/bin/packet-headers
 
 # Put it in its own image.
-FROM alpine
+FROM alpine:3.16
 RUN apk --no-cache add libpcap
 COPY --from=build /go/bin/packet-headers /packet-headers
 WORKDIR /

README.md

@@ -4,9 +4,9 @@
 The packet-headers service provides a binary which collects packet headers for
 all incoming TCP flows and saves each stream of packet captures into a
 per-stream `.pcap` file where the filename is the
-[UUID](https://github.com/m-lab/uuid) of the TCP flow.  It only saves the packet
-headers, and it supports (with a command-line flag) IP anonymity for the saved
-addresses.
+[UUID](https://github.com/m-lab/uuid) of the TCP flow.  It only saves the
+packet headers, and it supports (with a command-line flag) IP anonymity for
+the saved addresses.
 
 
 ## Usage

go.mod

@@ -0,0 +1,27 @@
+module github.com/m-lab/packet-headers
+
+go 1.18
+
+require (
+	github.com/google/gopacket v1.1.19
+	github.com/m-lab/go v0.1.53
+	github.com/m-lab/tcp-info v1.5.3
+	github.com/prometheus/client_golang v1.13.0
+	github.com/spf13/afero v1.9.2
+)
+
+require (
+	github.com/araddon/dateparse v0.0.0-20200409225146-d820a6159ab1 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/gocarina/gocsv v0.0.0-20220729221910-a7386ae0b221 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
+	github.com/prometheus/client_model v0.2.0 // indirect
+	github.com/prometheus/common v0.37.0 // indirect
+	github.com/prometheus/procfs v0.8.0 // indirect
+	golang.org/x/net v0.0.0-20220225172249-27dd8689420f // indirect
+	golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a // indirect
+	golang.org/x/text v0.3.7 // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
+)