Initial implementation

.github/workflows/build.yaml

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+name: Build ROCK
+
+on:
+  workflow_call:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Setup LXD
+        uses: canonical/setup-lxd@main
+      - name: Install dependencies
+        run: |
+          sudo snap install yq
+          sudo snap install rockcraft --classic
+      - name: Build ROCK
+        run: |
+          rockcraft pack
+      - name: Upload locally built ROCK artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: valkey-rock
+          path: charmed-valkey_*_amd64.rock

.github/workflows/release.yaml

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+name: Publish to GHCR
+
+env:
+  RELEASE: edge
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    uses: ./.github/workflows/build.yaml
+  publish:
+    needs: build
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    permissions:
+      packages: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Setup Docker
+        run: |
+          sudo snap install docker
+          sudo addgroup --system docker; sudo adduser $USER docker
+          newgrp docker
+          sudo snap disable docker; sudo snap enable docker
+      - name: Install skopeo
+        run: |
+          sudo snap install --devmode --channel edge skopeo
+      - name: Install yq
+        run: |
+          sudo snap install yq
+      - uses: actions/download-artifact@v3
+        with:
+          name: valkey-rock
+          path: .
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ secrets.GHCR_USER }}
+          password: ${{ secrets.GHCR_TOKEN }}
+      - name: Import and push to GHCR
+        run: |
+          version=$(yq '(.version|split("-"))[0]' rockcraft.yaml)
+          rock_image_version=$(yq '(.version)' rockcraft.yaml)
+          base=$(yq '(.base|split("@"))[1]' rockcraft.yaml)
+          tag=${version}-${base}-${{ env.RELEASE }}
+          echo "Publishing charmed-valkey:${tag}"
+          sudo skopeo --insecure-policy copy \
+            oci-archive:charmed-valkey_${rock_image_version}_amd64.rock \
+            docker-daemon:ghcr.io/canonical/charmed-valkey:${tag}
+          docker push ghcr.io/canonical/charmed-valkey:${tag}

README.md

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+# Charmed Valkey rock
+[![Release to GHCR](https://github.com/canonical/charmed-valkey-rock/actions/workflows/release.yaml/badge.svg)](https://github.com/canonical/charmed-valkey-rock/actions/workflows/release.yaml)
+
+This repository contains the packaging metadata for creating a rock of Charmed Valkey built from Charmed Valkey 
+Snap. For more information on rocks, visit the [rockcraft Github](https://github.com/canonical/rockcraft).
+
+## Building the rock
+The steps outlined below are based on the assumption that you are building the rock with the latest LTS of Ubuntu.  
+If you are using another version of Ubuntu or another operating system, the process may be different.
+
+### Clone Repository
+```bash
+git clone git@github.com:canonical/charmed-valkey-rock.git
+cd charmed-valkey-rock
+```
+### Installing Prerequisites
+```bash
+sudo snap install rockcraft --edge --classic
+sudo snap install docker
+sudo snap install lxd
+sudo snap install skopeo --edge --devmode
+```
+### Configuring Prerequisites
+```bash
+sudo usermod -aG docker $USER 
+sudo lxd init --auto
+```
+*_NOTE:_* You will need to open a new shell for the group change to take effect (i.e. `su - $USER`)
+### Packing and Running the rock
+```bash
+rockcraft pack
+sudo skopeo --insecure-policy copy oci-archive:charmed-valkey*.rock docker-daemon:<username>/charmed-valkey:<tag>
+docker run --rm -it <username>/charmed-valkey:<tag>
+```
+
+## License:
+The Charmed Valkey rock is free software, distributed under the Apache Software License, version 2.0. See licenses for 
+more information.

licenses/LICENSE-valkey

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+# License 1
+
+BSD 3-Clause License
+
+Copyright (c) 2024-present, Valkey contributors
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
+following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+    following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
+    following disclaimer in the documentation and/or other materials provided with the distribution.
+    * Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote
+    products derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# License 2
+
+BSD 3-Clause License
+
+Copyright (c) 2006-2020, Salvatore Sanfilippo
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
+following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+    following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
+    following disclaimer in the documentation and/or other materials provided with the distribution.
+    * Neither the name of Redis nor the names of its contributors may be used to endorse or promote products derived
+    from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

rockcraft.yaml

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+# Copyright 2024 Canonical Ltd.
+# See LICENSE-rock file for licensing details.
+---
+name: charmed-valkey  # the name of your ROCK
+base: ubuntu@22.04  # the base environment for this ROCK
+version: '7.2.5'  # just for humans. Semantic versioning is recommended
+summary: Charmed Valkey ROCK OCI  # 79 char long summary
+description: |
+  This is an OCI image that bundles Valkey together with the metrics exporter
+  in order to be used in Charmed Operators, providing automated operations 
+  management from day 0 to day 2 on Valkey, on top of a Virtual Machine cluster 
+  and K8s cluster. It is an open source, end-to-end, production ready data 
+  platform on top of cloud native technologies.
+license: Apache-2.0  # your application's SPDX license
+
+platforms:  # The platforms this ROCK should be built on and run on
+  amd64:
+
+services:
+  valkey:
+    override: replace
+    startup: enabled
+    summary: Start Valkey
+    command: "valkey-server --dir /var/lib/valkey"
+    user: valkey
+  redis_exporter:
+    override: replace
+    startup: enabled
+    summary: Start Metrics Exporter
+    command: "/bin/redis_exporter"
+    user: valkey
+
+parts:
+  valkey:
+    plugin: nil
+    stage-snaps:
+      - charmed-valkey/latest/edge
+  valkey-user:
+    plugin: nil
+    after:
+      - valkey
+    overlay-script: |
+      # Create a user in the $CRAFT_OVERLAY chroot
+      groupadd -R $CRAFT_OVERLAY -g  584788 valkey
+      useradd -R $CRAFT_OVERLAY -M -r -g valkey -u 584788 valkey
+    override-prime: |
+      mkdir -p $CRAFT_PRIME/var/lib/valkey
+      chown -R 584788:584788 $CRAFT_PRIME/var/lib/valkey
+  redis_exporter:
+    plugin: go
+    after:
+      - valkey-user
+    source: https://github.com/canonical/redis_exporter.git
+    source-type: git
+    source-branch: "v1.60.0"
+    build-snaps:
+      - go/1.21/stable