Add goreleaser for releasing

Signed-off-by: Nick Young <ynick@vmware.com>

Author: youngnick

.github/workflows/release.yaml

@@ -0,0 +1,32 @@
+name: Build and push a release
+
+on:
+  push:
+    tags:
+      # Although these *look* like regex matches, they're not!
+      # They are Go path.Match() expressions.
+      # See https://golang.org/pkg/path/#Match for details.
+      - 'v[0-9]*.[0-9]*.[0-9]'
+      - 'v[0-9]*.[0-9]*.[0-9][0-9]'
+      - 'v[0-9]*.[0-9]*.[0-9][0-9][0-9]'
+      - 'v[0-9]*.[0-9]*.[0-9]*beta*'
+      - 'v[0-9]*.[0-9]*.[0-9]*alpha*'
+      - 'v[0-9]*.[0-9]*.[0-9]*rc*'
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v1
+      -
+        name: Set up Go
+        uses: actions/setup-go@v1
+      -
+        name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v1
+        with:
+          version: latest
+          args: release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -10,3 +10,6 @@
 
 # Output of the go coverage tool, specifically when used with LiteIDE
 *.out
+
+# Goreleaser working directory
+dist/**

.goreleaser.yml

@@ -0,0 +1,33 @@
+builds:
+- env:
+  - CGO_ENABLED=0
+  main: ./cmd/ir2proxy/main.go
+  flags:
+  - -mod=readonly
+  - -v
+  goos:
+  - windows
+  - linux
+  - darwin
+release:
+  github:
+    owner: projectcontour
+    name: ir2proxy
+  prerelease: auto
+archives:
+- replacements:
+    darwin: Darwin
+    linux: Linux
+    windows: Windows
+    386: i386
+    amd64: x86_64
+checksum:
+  name_template: 'checksums.txt'
+snapshot:
+  name_template: "{{ .Tag }}-next"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+    - '^docs:'
+    - '^test:'