docs: add files related to project structure

Add required files towards proper project structure.

Rename go module to stackerbuild.io/stacker.

Signed-off-by: Ramkumar Chinchani <rchincha@cisco.com>

.github/ISSUE_TEMPLATE/bug_report.yml

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+name: Bug report
+description: File a bug report
+title: "[Bug]: " 
+labels: bug
+body:
+  - type: input
+    attributes: 
+      label: "stacker version"
+      placeholder: "v0.0.1 or commit hash"
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: "Describe the bug"
+      description: "Try to describe your issue/bug as well as you can, as that will help with speeding up fixing"
+
+  - type: textarea
+    attributes:
+      label: "To reproduce"
+      description: Steps to reproduce the behavior
+      value: |
+        1. Configuration
+        2. Client tool used
+        3. Seen error
+        
+  - type: textarea
+    attributes:
+      label: "Expected behavior"
+      description: "A clear and concise description of what you expected to happen."
+
+  - type: textarea
+    attributes:
+      label: "Screenshots"
+      description: "If applicable, add screenshots to help explain your problem."
+
+  - type: textarea
+    attributes:
+      label: "Additional context"
+      description: "Add any other context about the problem here."

.github/ISSUE_TEMPLATE/feature_request.yml

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+name: Feature request
+description: Request a feature
+title: "[Feat]: "
+labels: feature
+body:
+  - type: textarea
+    attributes:
+      label: "Is your feature request related to a problem? Please describe."
+      description: "A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]"
+
+  - type: textarea
+    attributes:
+      label: "Describe the solution you'd like"
+      description: "A clear and concise description of what you want to happen."
+
+  - type: textarea
+    attributes:
+      label: "Describe alternatives you've considered"
+      description: "A clear and concise description of any alternative solutions or features you've considered."
+
+  - type: textarea
+    attributes:
+      label: "Additional context"
+      description: "Add any other context or screenshots about the feature request here."

.github/PULL_REQUEST_TEMPLATE.md

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+<!--  Thanks for sending a pull request!  Here are some tips for you:
+1. Ensure you have added the unit tests for your changes.
+2. Ensure you have included output of manual testing done in the Testing section.
+3. Ensure number of lines of code for new or existing methods are within the reasonable limit.
+-->
+**What type of PR is this?**
+
+<!--
+Add one of the following:
+bug
+cleanup
+documentation
+feature
+-->
+
+**Which issue does this PR fix**:
+
+
+**What does this PR do / Why do we need it**:
+
+
+**If an issue # is not available please add repro steps and logs showing the issue**:
+
+
+**Testing done on this change**:
+<!--
+output of manual testing/integration tests results and also attach logs
+showing the fix being resolved
+-->
+
+**Automation added to e2e**:
+<!-- 
+Test case added to lib/integration.sh 
+If no, create an issue with enhancement/testing label
+-->
+
+**Will this break upgrades or downgrades?**
+
+
+**Does this PR introduce any user-facing change?**:
+<!--
+If yes, a release note update is required:
+Enter your extended release note in the block below. If the PR requires additional actions
+from users switching to the new release, include the string "action required".
+-->
+
+```release-note
+
+```
+
+By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

.github/dependabot.yml

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+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "gomod" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"
+  - package-ecosystem: "github-actions" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"

.github/workflows/cloc.yml

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+name: "Lines of code statistics"
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  release:
+    types:
+      - published
+
+permissions: read-all
+
+jobs:
+  loc:
+    name: Lines of code
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.19.x
+      - name: Check out source code
+        uses: actions/checkout@v3
+      - name: Install dependencies
+        run: |
+          cd $GITHUB_WORKSPACE
+          go install github.com/hhatto/gocloc/cmd/gocloc@latest
+      - name: All sources
+        run: |
+          cd $GITHUB_WORKSPACE
+          gocloc .
+      - name: All sources (except tests)
+        run: |
+          cd $GITHUB_WORKSPACE
+          gocloc --not-match='.*_test.go' .

.github/workflows/codeql-analysis.yml

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+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ main ]
+  schedule:
+    - cron: '17 11 * * 0'
+
+permissions: read-all
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'go' ]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python' ]
+        # Learn more:
+        # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed
+    env:
+      CGO_ENABLED: 0
+      GOFLAGS: "-tags=sync,search,scrub,metrics,containers_image_openpgp"
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+
+    - name: Install go
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.19.x
+
+    - name: Install dependencies
+      run: |
+        cd $GITHUB_WORKSPACE
+        go install github.com/swaggo/swag/cmd/swag@latest
+        go mod download
+        go install github.com/wadey/gocovmerge@latest
+        go get -u github.com/swaggo/swag/cmd/swag
+        go mod download
+        sudo apt-get update
+        sudo apt-get -y install rpm uidmap
+        # install skopeo
+        . /etc/os-release
+        echo "deb https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/xUbuntu_${VERSION_ID}/ /" | sudo tee /etc/apt/sources.list.d/devel:kubic:libcontainers:stable.list
+        curl -L https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/xUbuntu_${VERSION_ID}/Release.key | sudo apt-key add -
+        sudo apt-get update
+        sudo apt-get -y upgrade
+        sudo apt-get -y install skopeo
+        # install notation
+        curl -Lo notation.tar.gz https://github.com/notaryproject/notation/releases/download/v0.7.1-alpha.1/notation_0.7.1-alpha.1_linux_amd64.tar.gz
+        sudo tar xvzf notation.tar.gz -C /usr/bin notation
+        # install oras
+        curl -LO https://github.com/oras-project/oras/releases/download/v0.14.0/oras_0.14.0_linux_amd64.tar.gz
+        mkdir -p oras-install/
+        tar -zxf oras_0.14.0_*.tar.gz -C oras-install/
+        sudo mv oras-install/oras /usr/bin/
+        rm -rf oras_0.14.0_*.tar.gz oras-install/
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v2
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+
+    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v2
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 https://git.io/JvXDl
+
+    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+    #    and modify them (or add more) to build your code if your project
+    #    uses a compiled language
+    #- run: |
+    #   make bootstrap
+    #   make release
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v2

.github/workflows/commit-msg.yaml

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+name: 'Check commit message style'
+on:
+  pull_request:
+    types:
+      - opened
+      - edited
+      - reopened
+      - synchronize
+  push:
+    branches:
+      - main
+
+jobs:
+  check-commit-message-style:
+    name: Check commit message style
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Check Commit Type
+        uses: gsactions/commit-message-checker@v2
+        with:
+          pattern: '^((build|chore|ci|docs|feat|fix|perf|refactor|revert|style|test)(\(.+\))?(!)?(: (.*\s*)*))'
+          flags: 'gm'
+          error: 'Your first line has to the Conventional Commits specification.'
+          excludeDescription: 'true' # optional: this excludes the description body of a pull request
+          excludeTitle: 'true' # optional: this excludes the title of a pull request
+          checkAllCommitMessages: 'true'
+          accessToken: ${{ secrets.GITHUB_TOKEN }}
+      - name: Check Line Length
+        uses: gsactions/commit-message-checker@v2
+        with:
+          pattern: '^[^#].{1,74}'
+          error: 'The maximum line length of 74 characters is exceeded.'
+          excludeDescription: 'true' # optional: this excludes the description body of a pull request
+          excludeTitle: 'true' # optional: this excludes the title of a pull request
+          checkAllCommitMessages: 'true' # optional: this checks all commits associated with a pull request
+          accessToken: ${{ secrets.GITHUB_TOKEN }} # github access token is only required if checkAllCommitMessages is true

.github/workflows/dco.yml

@@ -0,0 +1,24 @@
+# .github/workflows/dco.yml
+name: DCO
+on:
+  pull_request:
+    branches:
+      - main
+
+permissions: read-all
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python 3.x
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.x'
+    - name: Check DCO
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      run: |
+        pip3 install -U dco-check
+        dco-check

.github/workflows/stale.yaml

@@ -0,0 +1,29 @@
+name: 'Close stale issues and PRs'
+on:
+  schedule:
+    - cron: '30 1 * * *'
+
+permissions:
+  contents: read
+  issues: write
+  pull-requests: write
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v6
+        with:
+          stale-issue-message: 'This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 5 days.'
+          stale-pr-message: 'This PR is stale because it has been open 45 days with no activity. Remove stale label or comment or this will be closed in 10 days.'
+          close-issue-message: 'This issue was closed because it has been stalled for 5 days with no activity.'
+          close-pr-message: 'This PR was closed because it has been stalled for 10 days with no activity.'
+          days-before-issue-stale: 30
+          days-before-pr-stale: 45
+          days-before-issue-close: 5
+          days-before-pr-close: 10
+          stale-issue-label: 'no-issue-activity'
+          exempt-issue-labels: 'awaiting-approval,work-in-progress'
+          stale-pr-label: 'no-pr-activity'
+          exempt-pr-labels: 'awaiting-approval,work-in-progress'
+          only-labels: 'awaiting-feedback,awaiting-answers'

CODEOWNERS

@@ -0,0 +1,4 @@
+# This is a comment.
+# Each line is a file pattern followed by one or more owners.
+
+*                 @rchincha @smoser @hallyn @peusebiu

CODE_OF_CONDUCT.md

@@ -0,0 +1,3 @@
+## Community Code of Conduct
+
+stacker follows the [CNCF Code of Conduct](https://github.com/cncf/foundation/blob/master/code-of-conduct.md).

CONTRIBUTING.md

@@ -0,0 +1 @@
+See [Contributing Guide](https://stackerbuild.io/developer_guide/CONTRIBUTING/) for instructions and guidelines.

MAINTAINERS.md

@@ -0,0 +1,11 @@
+# stacker Maintainers
+
+## Maintainers
+
+| Maintainer | Github ID | Affiliation |
+| --------------- | --------- | ----------- |
+| Ramkumar Chinchani | [rchincha](https://github.com/rchincha) | [Cisco Systems](https://www.cisco.com) |
+| Scott Moser | [smosert](https://github.com/smoser) | [Cisco Systems](https://www.cisco.com) |
+| Serge Hallyn | [hallyn](https://github.com/hallyn) | [Cisco Systems](https://www.cisco.com) |
+| Petu Constantin Eusebiu | [peusebiu](https://github.com/peusebiu) | [Cisco Systems](https://www.cisco.com)
+| Tycho Andersen | [tych0](https://github.com/tych0) | [Netflix](https://www.netflix.com) |