chore(litestream): add docker builds for litestream

Litestream will be better at snapshotting our sqlite database to s3. The service is currently struggling as the DB gets larger

.github/workflows/litestream.yml

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+name: Node.js CI
+
+# TODO: change to only in main and for litestream changes
+on: [push]
+jobs:
+  push:
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+      contents: read
+      checks: write
+      packages: write
+    steps:
+      - uses: actions/checkout@v4
+      # Build and push container image to GCR (only on main branch)
+      - name: Log in to the GitHub Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push container image to GitHub Container Registry
+        uses: docker/build-push-action@v4
+        with:
+          push: true
+          tags: |
+            ghcr.io/ar-io/arns-litestream:latest
+            ghcr.io/ar-io/arns-litestream:${{ github.sha }}

litestream/Dockerfile

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+# Start with a standard Ubuntu base image
+FROM ubuntu:20.04 as builder
+
+# Install curl and other necessary tools
+RUN apt-get update && apt-get install -y curl
+
+# Download and install ytt
+RUN curl -L https://github.com/vmware-tanzu/carvel-ytt/releases/download/v0.44.1/ytt-linux-amd64 > /usr/local/bin/ytt \
+    && chmod 755 /usr/local/bin/ytt
+
+FROM litestream/litestream:latest
+
+COPY --from=builder /usr/local/bin/ytt /usr/local/bin/ytt
+
+COPY litestream.template.yaml .
+COPY docker-entrypoint.sh .
+
+RUN chmod 755 /docker-entrypoint.sh
+
+ENTRYPOINT [ "./docker-entrypoint.sh" ]

litestream/docker-entrypoint.sh

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+#!/usr/bin/env sh
+set -e
+
+# Update env vars
+ytt --data-values-env TVAL -f /litestream.template.yaml >  /litestream.yml
+
+/usr/local/bin/litestream replicate -config /litestream.yml

litestream/litestream.template.yaml

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+#@ load("@ytt:data", "data")
+
+dbs:
+  - path: #@ data.values.LOCAL_DB_PATH + "/state.db"
+    replicas:
+      - url: #@ data.values.S3_BUCKET_PATH
+  - path: #@ data.values.LOCAL_DB_PATH + "/contract.db"
+    replicas:
+      - url: #@ data.values.S3_BUCKET_PATH