Migrate to GitHub Actions Release Process (#191)

Reference: https://github.com/hashicorp/terraform-provider-random/issue/175

.github/workflows/release.yml

@@ -0,0 +1,49 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v[0-9]+.[0-9]+.[0-9]+*'
+
+permissions:
+  contents: write
+
+jobs:
+  go-version:
+    runs-on: ubuntu-latest
+    outputs:
+      version: ${{ steps.go-version.outputs.version }}
+    steps:
+      - uses: actions/checkout@v2
+      - id: go-version
+        run: echo "::set-output name=version::$(cat ./.go-version)"
+  release-notes:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Generate Release Notes
+        run: sed -n -e "1{/# /d;}" -e "2{/^$/d;}" -e "/# $(git describe --abbrev=0 --exclude="$(git describe --abbrev=0 --match='v*.*.*' --tags)" --match='v*.*.*' --tags | tr -d v)/q;p" CHANGELOG.md > release-notes.txt
+      - uses: actions/upload-artifact@v2
+        with:
+          name: release-notes
+          path: release-notes.txt
+          retention-days: 1
+  terraform-provider-release:
+    name: 'Terraform Provider Release'
+    needs: [go-version, release-notes]
+    uses: hashicorp/ghaction-terraform-provider-release/.github/workflows/hashicorp.yml@v1
+    secrets:
+      hc-releases-aws-access-key-id: '${{ secrets.TF_PROVIDER_RELEASE_AWS_ACCESS_KEY_ID }}'
+      hc-releases-aws-secret-access-key: '${{ secrets.TF_PROVIDER_RELEASE_AWS_SECRET_ACCESS_KEY }}'
+      hc-releases-aws-role-arn: '${{ secrets.TF_PROVIDER_RELEASE_AWS_ROLE_ARN }}'
+      hc-releases-fastly-api-token: '${{ secrets.FASTLY_STATIC_PURGE_TOKEN }}'
+      hc-releases-github-token: '${{ secrets.HC_RELEASES_TOKEN }}'
+      hc-releases-terraform-registry-sync-token: '${{ secrets.TF_PROVIDER_RELEASE_TERRAFORM_REGISTRY_SYNC_TOKEN }}'
+      setup-signore-github-token: '${{ secrets.SETUP_SIGNORE_GITHUB_TOKEN }}'
+      signore-client-id: '${{ secrets.SIGNORE_CLIENT_ID }}'
+      signore-client-secret: '${{ secrets.SIGNORE_CLIENT_SECRET }}'
+    with:
+      release-notes: true
+      setup-go-version: '${{ needs.go-version.outputs.version }}'

.goreleaser.yml

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+archives:
+  - files:
+      # Ensure only built binary is archived
+      - 'none*'
+    format: zip
+    name_template: '{{ .ProjectName }}_{{ .Version }}_{{ .Os }}_{{ .Arch }}'
+before:
+  hooks:
+    - 'go mod download'
+builds:
+  - # Binary naming only required for Terraform CLI 0.12
+    binary: '{{ .ProjectName }}_v{{ .Version }}_x5'
+    env:
+      - CGO_ENABLED=0
+    flags:
+      - -trimpath
+    goos:
+      - darwin
+      - freebsd
+      - linux
+      - windows
+    goarch:
+      - '386'
+      - amd64
+      - arm
+      - arm64
+    ignore:
+      - goarch: arm
+        goos: windows
+      - goarch: arm64
+        goos: freebsd
+      - goarch: arm64
+        goos: windows
+    ldflags:
+      - -s -w -X main.Version={{.Version}}
+    mod_timestamp: '{{ .CommitTimestamp }}'
+checksum:
+  algorithm: sha256
+  extra_files:
+    - glob: 'terraform-registry-manifest.json'
+      name_template: '{{ .ProjectName }}_{{ .Version }}_manifest.json'
+  name_template: '{{ .ProjectName }}_{{ .Version }}_SHA256SUMS'
+publishers:
+  - checksum: true
+    # Terraform CLI 0.10 - 0.11 perform discovery via HTTP headers on releases.hashicorp.com
+    # For providers which have existed since those CLI versions, exclude
+    # discovery by setting the protocol version headers to 5.
+    cmd: hc-releases upload-file {{ abs .ArtifactPath }} -header=x-terraform-protocol-version=5 -header=x-terraform-protocol-versions=5.0
+    env:
+      - AWS_ACCESS_KEY_ID={{ .Env.AWS_ACCESS_KEY_ID }}
+      - AWS_SECRET_ACCESS_KEY={{ .Env.AWS_SECRET_ACCESS_KEY }}
+      - AWS_SESSION_TOKEN={{ .Env.AWS_SESSION_TOKEN }}
+    name: hc-releases
+    signature: true
+release:
+  extra_files:
+    - glob: 'terraform-registry-manifest.json'
+      name_template: '{{ .ProjectName }}_{{ .Version }}_manifest.json'
+  ids:
+    - none
+signs:
+  - args: ["sign", "--dearmor", "--file", "${artifact}", "--out", "${signature}"]
+    artifacts: checksum
+    cmd: signore
+    signature: ${artifact}.sig
+  - args: ["sign", "--dearmor", "--file", "${artifact}", "--out", "${signature}"]
+    artifacts: checksum
+    cmd: signore
+    id: key-id
+    signature: ${artifact}.72D7468F.sig
+snapshot:
+  name_template: "{{ .Tag }}-next"

terraform-registry-manifest.json

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+{
+    "version": 1,
+    "metadata": {
+        "protocol_versions": ["5.0"]
+    }
+}