Begin work on a logrotate filesystem (#1034)

### What does this PR do?

This commit starts a series of work that is intended to end in our
first user-defined generator, a FUSE version of our logrotate
file-gen. Although this UDG is bundled in-project I'll puruse an
independent interface and build it in a separate container, eventually,
adding the mechanism in lading for a UDG to be run.

### Additional Notes

I may eventually migrate `logrotate_rs` into a separate crate. For now
it was convenient to build it in the `lading` crate.

.github/actions/install-fuse/action.yml

@@ -0,0 +1,12 @@
+name: 'Install FUSE'
+description: 'Installs FUSE on the runner OS'
+runs:
+  using: 'composite'
+  steps:
+    - run: |
+        if [ "${{ runner.os }}" == "Linux" ]; then
+          sudo apt-get update && sudo apt-get install -y fuse3 libfuse3-dev
+        elif [ "${{ runner.os }}" == "macOS" ]; then
+          brew install macfuse
+        fi
+      shell: bash

.github/workflows/ci.yml

@@ -17,14 +17,17 @@ jobs:
         include:
           - tool: check
             protobuf: true
+            fuse: true
             components: ""
             command: cargo check
           - tool: fmt
             protobuf: true
+            fuse: true
             components: "rustfmt"
             command: cargo fmt --all -- --check
           - tool: clippy
             protobuf: true
+            fuse: true
             components: "clippy"
             command: cargo clippy --all-features
     steps:
@@ -35,6 +38,9 @@ jobs:
       - name: Install Protobuf
         if: matrix.protobuf
         uses: ./.github/actions/install-protobuf
+      - name: Install FUSE
+        if: matrix.fuse
+        uses: ./.github/actions/install-fuse
       - name: Run ${{ matrix.tool }}
         run: ${{ matrix.command }}
 
@@ -52,6 +58,8 @@ jobs:
       - uses: actions-rust-lang/setup-rust-toolchain@11df97af8e8102fd60b60a77dfbf58d40cd843b8 # v1.10
       - name: Install Protobuf
         uses: ./.github/actions/install-protobuf
+      - name: Install FUSE
+        uses: ./.github/actions/install-fuse
       - name: Install nextest
         uses: taiki-e/install-action@49be99c627fae102cb8c86414e9605869641782a # nextest
       - run: cargo nextest run
@@ -64,6 +72,8 @@ jobs:
       - uses: actions-rust-lang/setup-rust-toolchain@11df97af8e8102fd60b60a77dfbf58d40cd843b8 # v1.10
       - name: Install Protobuf
         uses: ./.github/actions/install-protobuf
+      - name: Install FUSE
+        uses: ./.github/actions/install-fuse
       - run: cargo test -p sheepdog
         timeout-minutes: 30
 
@@ -79,6 +89,8 @@ jobs:
       - uses: actions-rust-lang/setup-rust-toolchain@11df97af8e8102fd60b60a77dfbf58d40cd843b8 # v1.10
       - name: Install Protobuf
         uses: ./.github/actions/install-protobuf
+      - name: Install FUSE
+        uses: ./.github/actions/install-fuse
       - name: Install kani
         run: cargo install kani-verifier
       - run: cargo kani --solver cadical
@@ -96,6 +108,8 @@ jobs:
       - uses: actions-rust-lang/setup-rust-toolchain@11df97af8e8102fd60b60a77dfbf58d40cd843b8 # v1.10
       - name: Install Protobuf
         uses: ./.github/actions/install-protobuf
+      - name: Install FUSE
+        uses: ./.github/actions/install-fuse
       - name: Install nextest
         uses: taiki-e/install-action@49be99c627fae102cb8c86414e9605869641782a # nextest
       - run: RUSTFLAGS="--cfg loom" cargo nextest run --release
@@ -172,4 +186,4 @@ jobs:
           actions: ".github/actions"
           dockerfiles: ""
           fail_on_unpinned: true
-          open_pr: false
+          open_pr: false

Dockerfile

@@ -2,7 +2,7 @@
 FROM docker.io/rust:1.81.0-bullseye AS builder
 
 RUN apt-get update && apt-get install -y \
-    protobuf-compiler \
+    protobuf-compiler fuse3 libfuse3-dev \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app

lading/Cargo.toml

@@ -34,6 +34,7 @@ flate2 = { version = "1.0.34", default-features = false, features = [
   "rust_backend",
 ] }
 futures = "0.3.31"
+fuser = "0.14"
 http = "0.2"
 http-serde = "1.1"
 hyper = { version = "0.14", features = ["client"] }