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Paul C
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wolfdisk: publish multi-arch Docker image to GHCR
- wolfdisk/docker/Dockerfile: debian-slim base with fuse3, binaries copied per-arch via TARGETARCH. - wolfdisk/docker/entrypoint.sh: first-run bootstrap. Creates the data directory via `wolfdisk init`, writes /etc/wolfdisk/config.toml from env vars (WOLFDISK_NODE_ID, WOLFDISK_ROLE, WOLFDISK_BIND, WOLFDISK_MODE, comma-separated WOLFDISK_PEERS, WOLFDISK_DATA_DIR, WOLFDISK_MOUNT), then execs `wolfdisk mount --mountpoint $MOUNT`. - .github/workflows/wolfdisk-docker-publish.yml: cross-compiles both musl targets, then buildx+QEMU assembles a multi-arch image and pushes to ghcr.io/wolfsoftwaresystemsltd/wolfdisk:{latest,<version>}.
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‎.github/workflows/wolfdisk-docker-publish.yml‎

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name: WolfDisk — Publish Docker Image
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on:
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push:
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branches: [main]
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paths:
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- 'wolfdisk/Cargo.toml'
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- 'wolfdisk/src/**'
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- 'wolfdisk/docker/**'
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- '.github/workflows/wolfdisk-docker-publish.yml'
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workflow_dispatch:
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jobs:
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build-binaries:
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strategy:
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matrix:
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include:
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- target: x86_64-unknown-linux-musl
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arch: amd64
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runner: ubuntu-latest
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- target: aarch64-unknown-linux-musl
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arch: arm64
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runner: ubuntu-latest
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runs-on: ${{ matrix.runner }}
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defaults:
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run:
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working-directory: wolfdisk
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steps:
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- uses: actions/checkout@v4
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- name: Install Rust
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uses: dtolnay/rust-toolchain@stable
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with:
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targets: ${{ matrix.target }}
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- name: Install cross
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run: cargo install cross --git https://github.com/cross-rs/cross
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working-directory: .
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- name: Build static binaries
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run: cross build --release --target ${{ matrix.target }}
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- name: Stage binaries
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run: |
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mkdir -p dist/${{ matrix.arch }}
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cp target/${{ matrix.target }}/release/wolfdisk dist/${{ matrix.arch }}/wolfdisk
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cp target/${{ matrix.target }}/release/wolfdiskctl dist/${{ matrix.arch }}/wolfdiskctl
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chmod +x dist/${{ matrix.arch }}/wolfdisk dist/${{ matrix.arch }}/wolfdiskctl
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- name: Upload artifact
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uses: actions/upload-artifact@v4
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with:
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name: wolfdisk-binaries-${{ matrix.arch }}
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path: wolfdisk/dist/${{ matrix.arch }}/
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publish:
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needs: build-binaries
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runs-on: ubuntu-latest
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permissions:
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contents: read
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packages: write
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steps:
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- uses: actions/checkout@v4
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- name: Get version
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id: version
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run: echo "version=$(grep '^version' wolfdisk/Cargo.toml | head -1 | sed 's/.*\"\(.*\)\".*/\1/')" >> "$GITHUB_OUTPUT"
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- name: Download amd64 binaries
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uses: actions/download-artifact@v4
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with:
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name: wolfdisk-binaries-amd64
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path: wolfdisk/dist/amd64
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- name: Download arm64 binaries
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uses: actions/download-artifact@v4
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with:
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name: wolfdisk-binaries-arm64
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path: wolfdisk/dist/arm64
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- name: Ensure binaries are executable
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run: chmod +x wolfdisk/dist/amd64/* wolfdisk/dist/arm64/*
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- name: Set up QEMU
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uses: docker/setup-qemu-action@v3
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- name: Set up Docker Buildx
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uses: docker/setup-buildx-action@v3
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- name: Log in to GHCR
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uses: docker/login-action@v3
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with:
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registry: ghcr.io
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username: ${{ github.actor }}
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password: ${{ secrets.GITHUB_TOKEN }}
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- name: Build and push multi-arch image
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uses: docker/build-push-action@v5
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with:
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context: wolfdisk
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file: wolfdisk/docker/Dockerfile
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platforms: linux/amd64,linux/arm64
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push: true
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tags: |
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ghcr.io/wolfsoftwaresystemsltd/wolfdisk:latest
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ghcr.io/wolfsoftwaresystemsltd/wolfdisk:${{ steps.version.outputs.version }}

‎wolfdisk/docker/Dockerfile‎

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# WolfDisk Docker Container — distributed FUSE filesystem
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#
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# Runs in --network host mode with /dev/fuse. Pre-built static musl binaries
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# are placed under dist/<arch>/ by the publish workflow; this Dockerfile
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# copies the right one based on TARGETARCH.
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#
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# Usage:
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# docker run -d --name wolfdisk --network host \
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# --cap-add SYS_ADMIN --device /dev/fuse:/dev/fuse \
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# --security-opt apparmor:unconfined \
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# -v wolfdisk-config:/etc/wolfdisk \
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# -v wolfdisk-data:/var/lib/wolfdisk \
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# -v /mnt/wolfdisk:/mnt/wolfdisk:rshared \
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# -e WOLFDISK_ROLE=client \
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# -e WOLFDISK_PEERS=<leader_ip:8550> \
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# ghcr.io/wolfsoftwaresystemsltd/wolfdisk:latest
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FROM debian:bookworm-slim
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ARG TARGETARCH
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RUN apt-get update && apt-get install -y --no-install-recommends \
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fuse3 \
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procps \
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ca-certificates \
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&& rm -rf /var/lib/apt/lists/*
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RUN mkdir -p /etc/wolfdisk /var/lib/wolfdisk /mnt/wolfdisk
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COPY dist/${TARGETARCH}/wolfdisk /usr/local/bin/wolfdisk
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COPY dist/${TARGETARCH}/wolfdiskctl /usr/local/bin/wolfdiskctl
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COPY docker/entrypoint.sh /entrypoint.sh
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RUN chmod +x /usr/local/bin/wolfdisk /usr/local/bin/wolfdiskctl /entrypoint.sh
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EXPOSE 8550/tcp
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EXPOSE 9878/tcp
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VOLUME ["/etc/wolfdisk", "/var/lib/wolfdisk"]
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ENTRYPOINT ["/entrypoint.sh"]

‎wolfdisk/docker/entrypoint.sh‎

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#!/bin/bash
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set -e
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# ─── WolfDisk Docker Entrypoint ──────────────────────────────────────────────
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# Writes /etc/wolfdisk/config.toml from env vars on first run, initialises
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# the data directory, then mounts the filesystem.
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CONFIG="/etc/wolfdisk/config.toml"
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DATA_DIR="${WOLFDISK_DATA_DIR:-/var/lib/wolfdisk}"
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MOUNT="${WOLFDISK_MOUNT:-/mnt/wolfdisk}"
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mkdir -p "$(dirname "$CONFIG")" "$MOUNT" "$DATA_DIR"
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if [ ! -c /dev/fuse ]; then
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echo "✗ /dev/fuse not found inside the container."
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echo " Run with: --device /dev/fuse:/dev/fuse (and usually --privileged or --cap-add SYS_ADMIN)"
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exit 1
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fi
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wolfdisk --config "$CONFIG" init --data-dir "$DATA_DIR" >/dev/null 2>&1 || true
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if [ ! -f "$CONFIG" ]; then
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NODE_ID="${WOLFDISK_NODE_ID:-$(hostname)}"
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ROLE="${WOLFDISK_ROLE:-client}"
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BIND="${WOLFDISK_BIND:-0.0.0.0:8550}"
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MODE="${WOLFDISK_MODE:-shared}"
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# Parse comma-separated WOLFDISK_PEERS into a TOML array
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peers_toml=""
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if [ -n "$WOLFDISK_PEERS" ]; then
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IFS=',' read -ra parts <<< "$WOLFDISK_PEERS"
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first=1
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for p in "${parts[@]}"; do
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p="${p// /}"
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[ -z "$p" ] && continue
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if [ $first -eq 1 ]; then
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peers_toml="\"$p\""
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first=0
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else
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peers_toml="$peers_toml, \"$p\""
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fi
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done
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fi
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cat > "$CONFIG" <<EOF
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[node]
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id = "$NODE_ID"
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role = "$ROLE"
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bind = "$BIND"
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data_dir = "$DATA_DIR"
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[cluster]
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peers = [$peers_toml]
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[replication]
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mode = "$MODE"
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factor = 3
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chunk_size = 4194304
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[mount]
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path = "$MOUNT"
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allow_other = true
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EOF
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echo "→ Wrote $CONFIG (role=$ROLE, peers=[$peers_toml])"
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fi
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echo "→ Mounting WolfDisk at $MOUNT..."
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exec wolfdisk --config "$CONFIG" mount --mountpoint "$MOUNT" "$@"

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