feat: copy files over from celestiaorg

.github/CODEOWNERS

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+# CODEOWNERS: https://help.github.com/articles/about-codeowners/
+
+# Everything goes through the following "global owners" by default.  Unless a
+# later match takes precedence, these owners will be requested for review when
+# someone opens a PR.
+
+# Note that the last matching pattern takes precedence, so
+# global owners are only requested if there isn't a more specific
+# codeowner specified below. For this reason, the global codeowners
+# are often repeated in package-level definitions.
+
+# Global Owner(s)
+* @MSevey
+
+# .github directory owners
+/.github/ @MSevey
+
+# Specific file owners
+CONTRIBUTING.md @liamsi @MSevey
+SECURITY.md @liamsi @MSevey

.github/ISSUE_TEMPLATES_TODO/README.md

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+The directory has the `_TODO` prefix so that it isn't used. Once we have Issue Templates ready.

.github/actions/README.md

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+This is where composite actions can live for the Rollkit Org.

.github/actions/changes-since-last-tag/action.yml

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+# Changes Since Last Tag is a useful helper that can check for changes in files
+# based on various filters, such as extension and path. This is a useful tool
+# when thinking about CI/CD to ensure we are not creating release with no diff.
+name: "Changes Since Last Tag"
+description: "Check for changes to any of the files since the last tag"
+inputs:
+  working-directory:
+    required: false
+    description: "Working directory"
+    default: "."
+
+# Define action steps
+runs:
+  using: "composite"
+  steps:
+    - name: "Get Previous tag"
+      id: previoustag
+      uses: "WyriHaximus/github-action-get-previous-tag@v1"
+      with:
+        # NOTE: There is one bug when running this with no previous versions. As
+        # soon as one version exists, it works as expected.
+        fallback: 0.0.1 # Optional fallback tag to use when no tag can be found
+    # Use paths-filter to determine which paths have changes
+    # https://github.com/dorny/paths-filter
+    - uses: dorny/paths-filter@v2
+      id: changes
+      with:
+        base: ${{ steps.previoustag.outputs.tag }}
+        filters: |
+          any: "**"

.github/actions/docker-publish/action.yml

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+name: "Publish Image to Docker Hub"
+description: |
+  Build and push the latest docker image to docker hub.
+  Four images will be pushed, `latest` and three semver images.
+  One will be the full semver image (major.minor.patch).
+  The second will be the major.minor version.
+  Third one will be just the major version.
+inputs:
+  docker_username:
+    required: true
+    description: "secrets.DOCKER_USERNAME"
+  docker_password:
+    required: true
+    description: "secrets.DOCKER_PASSWORD"
+  docker_repository:
+    required: true
+    description: "name of the docker repository"
+  semver_version:
+    required: true
+    description: "The semver version to release (vX.X.X)"
+
+# Define action steps
+runs:
+  using: "composite"
+  steps:
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
+
+    - name: Log in to Docker Hub
+      uses: docker/login-action@v2
+      with:
+        username: ${{ inputs.docker_username }}
+        password: ${{ inputs.docker_password }}
+
+    - name: Generate Docker Versions
+      id: docker_version
+      uses: SkynetLabs/.github/.github/actions/major-minor-version@master
+      with:
+        version: ${{ inputs.semver_version }}
+        docker_repository: ${{ inputs.docker_repository }}
+
+    - name: Build and push Docker image
+      uses: docker/build-push-action@v3
+      with:
+        push: true
+        tags: |
+          ${{ steps.docker_version.outputs.latest_image_tag }}
+          ${{ steps.docker_version.outputs.semver_version_image_tag }}
+          ${{ steps.docker_version.outputs.major_minor_version_image_tag }}
+          ${{ steps.docker_version.outputs.major_version_image_tag }}

.github/actions/major-minor-version/.gitignore

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+node_modules

.github/actions/major-minor-version/README.md

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+# Developing
+
+Install dependencies
+```
+npm install
+```
+
+Build new action
+```
+npm run build
+```

.github/actions/major-minor-version/action.yml

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+name: "Docker Image Versions"
+description: |
+  Generate image version tags for docker images by removing the `v` prefix and
+  returning major, minor and patch versions along with a latest tag.
+inputs:
+  docker_repository:
+    description: "Docker Repository"
+    required: true
+  version:
+    description: "Semver version vX.X.X"
+    required: true
+outputs:
+  latest_image_tag:
+    description: "The latest docker image tag"
+  major_version_image_tag:
+    description: "The major semver docker image version tag X"
+  major_minor_version_image_tag:
+    description: "The major minor semver docker image version tag X.X"
+  semver_version_image_tag:
+    description: "The semver docker image version tag X.X.X"
+
+runs:
+  using: "node16"
+  main: "dist/index.js"