Add actions workflows and unit tests

.github/workflows/actionlint.yaml

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+# Copyright 2022 Chainguard, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+name: Action Lint
+
+on:
+  pull_request:
+    branches: [ 'main', 'release-*' ]
+
+jobs:
+
+  action-lint:
+    name: Action lint
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+
+      - name: Find yamls
+        id: get_yamls
+        run: |
+          yamls="$(find .github/workflows -name "*.y*ml" | grep -v dependabot. | xargs echo)"
+          echo "files=${yamls}" >> "$GITHUB_OUTPUT"
+
+      - name: Action lint
+        uses: reviewdog/action-actionlint@9ccda195fd3a290c8596db7f1958c897deaa8c76 # v1.40.0
+        with:
+          actionlint_flags: ${{ steps.get_yamls.outputs.files }}

.github/workflows/donotsubmit.yaml

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+# Copyright 2022 Chainguard, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+name: Do Not Submit
+
+on:
+  pull_request:
+    branches: [ 'main', 'release-*' ]
+
+jobs:
+
+  donotsubmit:
+    name: Do Not Submit
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+
+      - name: Do Not Submit
+        uses: chainguard-dev/actions/donotsubmit@main

.github/workflows/go-test.yaml

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+# Copyright 2022 Chainguard, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+name: Test
+
+on:
+  pull_request:
+    branches: [ 'main', 'release-*' ]
+  push:
+    branches: [ 'main', 'release-*' ]
+
+jobs:
+
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Check out code onto GOPATH
+      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+
+    # https://github.com/mvdan/github-actions-golang#how-do-i-set-up-caching-between-builds
+    - uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 # v3.3.2
+      with:
+        # In order:
+        # * Module download cache
+        # * Build cache (Linux)
+        path: |
+          ~/go/pkg/mod
+          ~/.cache/go-build
+        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        restore-keys: |
+          ${{ runner.os }}-go-
+
+    - name: Set up Go
+      uses: actions/setup-go@0c52d547c9bc32b1aa3301fd7a9cb496313a4491 # v5.0.0
+      with:
+        go-version-file: './go.mod'
+        check-latest: true
+
+    - run: |
+        # Exclude running unit tests against third_party repos.
+        go test -race ./...

.github/workflows/style.yaml

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+# Copyright 2022 Chainguard, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+name: Code Style
+
+on:
+  pull_request:
+    branches: [ 'main', 'release-*' ]
+  push:
+    branches: [ 'main', 'release-*' ]
+
+jobs:
+
+  gofmt:
+    name: check gofmt
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+
+      - name: Set up Go
+        uses: actions/setup-go@0c52d547c9bc32b1aa3301fd7a9cb496313a4491 # v5.0.0
+        with:
+          go-version-file: './go.mod'
+          check-latest: true
+
+      - uses: chainguard-dev/actions/gofmt@main
+        with:
+          args: -s
+
+  goimports:
+    name: check goimports
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+
+      - name: Set up Go
+        uses: actions/setup-go@0c52d547c9bc32b1aa3301fd7a9cb496313a4491 # v5.0.0
+        with:
+          go-version-file: './go.mod'
+          check-latest: true
+
+      - uses: chainguard-dev/actions/goimports@main
+
+  golangci-lint:
+    name: golangci-lint
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+
+      - name: Set up Go
+        uses: actions/setup-go@0c52d547c9bc32b1aa3301fd7a9cb496313a4491 # v5.0.0
+        with:
+          go-version-file: './go.mod'
+          check-latest: true
+          cache: true
+
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@3a919529898de77ec3da873e3063ca4b10e7f5cc # v3.7.0
+        with:
+          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
+          version: v1.54
+          args: --timeout=5m
+
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+
+      - name: Set up Go
+        uses: actions/setup-go@0c52d547c9bc32b1aa3301fd7a9cb496313a4491 # v5.0.0
+        with:
+          go-version-file: './go.mod'
+          check-latest: true
+
+      - uses: chainguard-dev/actions/trailing-space@main
+        if: ${{ always() }}
+
+      - uses: chainguard-dev/actions/eof-newline@main
+        if: ${{ always() }}
+
+      - uses: reviewdog/action-tflint@master
+        if: ${{ always() }}
+        with:
+          github_token: ${{ secrets.github_token }}
+          fail_on_error: true
+
+      - uses: reviewdog/action-misspell@06d6a480724fa783c220081bbc22336a78dbbe82 # v1.15.0
+        if: ${{ always() }}
+        with:
+          github_token: ${{ secrets.github_token }}
+          fail_on_error: true
+          locale: "US"
+          exclude: |
+            **/go.sum
+            **/third_party/**
+            ./*.yml
+
+      - uses: get-woke/woke-action-reviewdog@d71fd0115146a01c3181439ce714e21a69d75e31 # v0
+        if: ${{ always() }}
+        with:
+          github-token: ${{ secrets.github_token }}
+          reporter: github-pr-check
+          level: error
+          fail-on-error: true

.github/workflows/terraform.yaml

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+name: Validate, Lint and Test
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  lint-and-validate:
+    name: "Terraform fmt and validate"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+      - uses: hashicorp/setup-terraform@a1502cd9e758c50496cc9ac5308c4843bcd56d36 # v3.0.0
+
+      - run: terraform fmt -check
+
+      - run: |
+          terraform init
+          terraform validate