Merge branch 'dev' into fix-ips-fixed

Commit c65a0332bc refactored IP handling but accidentally broke [ips_fixed]
by treating fixed peers as regular bootstrap sources. This caused fixed
peers to not bypass slot limits, breaking connectivity for nodes with low
peers_max values.

This fix does NOT restore:
- The fallback behavior where [ips_fixed] was used as bootstrap when [ips]
  was empty (added in 98bdb9de68, 2015)
- Any hardcoded default bootstrap IPs

These are unnecessary because addFixedPeer actively maintains connections
to fixed peers regardless of the bootstrap mechanism. Nodes with only
[ips_fixed] configured will still connect and discover peers through
their fixed connections.

Closes #636

.github/actions/xahau-ga-build/action.yml

@@ -28,10 +28,6 @@ inputs:
     description: 'Cache version for invalidation'
     required: false
     default: '1'
-  cache_enabled:
-    description: 'Whether to use cache'
-    required: false
-    default: 'true'
   ccache_enabled:
     description: 'Whether to use ccache'
     required: false
@@ -76,7 +72,7 @@ runs:
         echo "name=${SAFE_BRANCH}" >> $GITHUB_OUTPUT
 
     - name: Restore ccache directory for main branch
-      if: inputs.cache_enabled == 'true' && inputs.ccache_enabled == 'true'
+      if: inputs.ccache_enabled == 'true'
       id: ccache-restore
       uses: ./.github/actions/xahau-ga-cache-restore
       with:
@@ -88,7 +84,7 @@ runs:
         cache-type: ccache-main
 
     - name: Restore ccache directory for current branch
-      if: inputs.cache_enabled == 'true' && inputs.ccache_enabled == 'true' && steps.safe-branch.outputs.name != inputs.main_branch
+      if: inputs.ccache_enabled == 'true' && steps.safe-branch.outputs.name != inputs.main_branch
       id: ccache-restore-current-branch
       uses: ./.github/actions/xahau-ga-cache-restore
       with:
@@ -107,11 +103,6 @@ runs:
         # Create cache directories
         mkdir -p ~/.ccache-main ~/.ccache-current
 
-        # Keep config separate from cache_dir so configs aren't swapped when CCACHE_DIR changes between steps
-        mkdir -p ~/.config/ccache
-        export CCACHE_CONFIGPATH="$HOME/.config/ccache/ccache.conf"
-        echo "CCACHE_CONFIGPATH=$CCACHE_CONFIGPATH" >> $GITHUB_ENV
-
         # Configure ccache settings AFTER cache restore (prevents stale cached config)
         ccache --set-config=max_size=${{ inputs.ccache_max_size }}
         ccache --set-config=hash_dir=${{ inputs.ccache_hash_dir }}
@@ -246,14 +237,14 @@ runs:
       run: ccache -s
 
     - name: Save ccache directory for main branch
-      if: success() && inputs.cache_enabled == 'true' && inputs.ccache_enabled == 'true' && steps.safe-branch.outputs.name == inputs.main_branch
+      if: success() && inputs.ccache_enabled == 'true' && steps.safe-branch.outputs.name == inputs.main_branch
       uses: actions/cache/save@v4
       with:
         path: ~/.ccache-main
         key: ${{ steps.ccache-restore.outputs.cache-primary-key }}
 
     - name: Save ccache directory for current branch
-      if: success() && inputs.cache_enabled == 'true' && inputs.ccache_enabled == 'true' && steps.safe-branch.outputs.name != inputs.main_branch
+      if: success() && inputs.ccache_enabled == 'true' && steps.safe-branch.outputs.name != inputs.main_branch
       uses: actions/cache/save@v4
       with:
         path: ~/.ccache-current

.github/actions/xahau-ga-dependencies/action.yml

@@ -76,17 +76,6 @@ runs:
           ${{ runner.os }}-conan-v${{ inputs.cache_version }}-${{ inputs.compiler-id }}-
         cache-type: Conan
 
-    - name: Configure Conan cache paths
-      if: inputs.cache_enabled == 'false'
-      shell: bash
-      # For self-hosted runners, register cache paths to be used as volumes
-      # This allows the cache to be shared between containers
-      run: |
-        mkdir -p /.conan-cache/conan2 /.conan-cache/conan2_download /.conan-cache/conan2_sources
-        echo 'core.cache:storage_path=/.conan-cache/conan2' > ~/.conan2/global.conf
-        echo 'core.download:download_cache=/.conan-cache/conan2_download' >> ~/.conan2/global.conf
-        echo 'core.sources:download_cache=/.conan-cache/conan2_sources' >> ~/.conan2/global.conf
-
     - name: Configure Conan
       shell: bash
       run: |

.github/workflows/build-in-docker.yml

@@ -33,7 +33,7 @@ jobs:
           fetch-depth: 2 # Only get the last 2 commits, to avoid fetching all history
 
   build:
-    runs-on: [self-hosted, xahaud-build]
+    runs-on: [self-hosted, vanity]
     needs: [checkout]
     defaults:
       run:
@@ -74,7 +74,7 @@ jobs:
           fi
 
   tests:
-    runs-on: [self-hosted, xahaud-build]
+    runs-on: [self-hosted, vanity]
     needs: [build, checkout]
     defaults:
       run:
@@ -84,7 +84,7 @@ jobs:
         run: /bin/bash docker-unit-tests.sh
 
   cleanup:
-    runs-on: [self-hosted, xahaud-build]
+    runs-on: [self-hosted, vanity]
     needs: [tests, checkout]
     if: always()
     steps:

.github/workflows/xahau-ga-nix.yml

@@ -14,7 +14,7 @@ concurrency:
 
 jobs:
   matrix-setup:
-    runs-on: [self-hosted, generic, 20.04]
+    runs-on: ubuntu-latest
     container: python:3-slim
     outputs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}
@@ -176,18 +176,7 @@ jobs:
 
   build:
     needs: matrix-setup
-    runs-on: [self-hosted, generic, 20.04]
-    container:
-      image: ubuntu:24.04
-      volumes:
-        - /home/runner/.conan-cache:/.conan-cache
-        - /home/runner/.ccache-main:/github/home/.ccache-main
-        - /home/runner/.ccache-current:/github/home/.ccache-current
-      options: >-
-        --privileged
-    defaults:
-      run:
-        shell: bash
+    runs-on: ubuntu-latest
     outputs:
       artifact_name: ${{ steps.set-artifact-name.outputs.artifact_name }}
     strategy:
@@ -202,22 +191,23 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Get commit message
+        id: get-commit-message
+        uses: ./.github/actions/xahau-ga-get-commit-message
+        with:
+          event-name: ${{ github.event_name }}
+          head-commit-message: ${{ github.event.head_commit.message }}
+          pr-head-sha: ${{ github.event.pull_request.head.sha }}
+
       - name: Install build dependencies
         run: |
-          apt-get update
-          apt-get install -y software-properties-common
-          add-apt-repository ppa:ubuntu-toolchain-r/test -y
-          apt-get update
-          apt-get install -y python3 python-is-python3 pipx
-          pipx ensurepath
-          apt-get install -y cmake ninja-build ${{ matrix.cc }} ${{ matrix.cxx }} ccache
-          apt-get install -y perl # for openssl build
-          apt-get install -y libsqlite3-dev # for xahaud build
+          sudo apt-get update
+          sudo apt-get install -y ninja-build ${{ matrix.cc }} ${{ matrix.cxx }} ccache
 
           # Install the specific GCC version needed for Clang
           if [ -n "${{ matrix.clang_gcc_toolchain }}" ]; then
             echo "=== Installing GCC ${{ matrix.clang_gcc_toolchain }} for Clang ==="
-            apt-get install -y gcc-${{ matrix.clang_gcc_toolchain }} g++-${{ matrix.clang_gcc_toolchain }} libstdc++-${{ matrix.clang_gcc_toolchain }}-dev
+            sudo apt-get install -y gcc-${{ matrix.clang_gcc_toolchain }} g++-${{ matrix.clang_gcc_toolchain }} libstdc++-${{ matrix.clang_gcc_toolchain }}-dev
 
             echo "=== GCC versions available after installation ==="
             ls -la /usr/lib/gcc/x86_64-linux-gnu/ | grep -E "^d"
@@ -248,7 +238,7 @@ jobs:
                   echo "Hiding GCC $version -> renaming to $counter (will be seen as GCC version $counter)"
                   # Safety check: ensure target doesn't already exist
                   if [ ! -e "/usr/lib/gcc/x86_64-linux-gnu/$counter" ]; then
-                    mv "$dir" "/usr/lib/gcc/x86_64-linux-gnu/$counter"
+                    sudo mv "$dir" "/usr/lib/gcc/x86_64-linux-gnu/$counter"
                   else
                     echo "ERROR: Cannot rename GCC $version - /usr/lib/gcc/x86_64-linux-gnu/$counter already exists"
                     exit 1
@@ -272,12 +262,11 @@ jobs:
 
           # Install libc++ dev packages if using libc++ (not needed for libstdc++)
           if [ "${{ matrix.stdlib }}" = "libcxx" ]; then
-            apt-get install -y libc++-${{ matrix.compiler_version }}-dev libc++abi-${{ matrix.compiler_version }}-dev
+            sudo apt-get install -y libc++-${{ matrix.compiler_version }}-dev libc++abi-${{ matrix.compiler_version }}-dev
           fi
 
           # Install Conan 2
-          pipx install "conan>=2.0,<3"
-          echo "$HOME/.local/bin" >> $GITHUB_PATH
+          pip install --upgrade "conan>=2.0,<3"
 
       - name: Check environment
         run: |
@@ -291,14 +280,6 @@ jobs:
           echo "---- Full Environment ----"
           env
 
-      - name: Get commit message
-        id: get-commit-message
-        uses: ./.github/actions/xahau-ga-get-commit-message
-        with:
-          event-name: ${{ github.event_name }}
-          head-commit-message: ${{ github.event.head_commit.message }}
-          pr-head-sha: ${{ github.event.pull_request.head.sha }}
-
       - name: Install dependencies
         uses: ./.github/actions/xahau-ga-dependencies
         with:
@@ -312,7 +293,6 @@ jobs:
           cc: ${{ matrix.cc }}
           cxx: ${{ matrix.cxx }}
           stdlib: ${{ matrix.stdlib }}
-          cache_enabled: 'false' # Disable caching for self hosted runner
 
       - name: Build
         uses: ./.github/actions/xahau-ga-build
@@ -327,8 +307,6 @@ jobs:
           main_branch: ${{ env.MAIN_BRANCH_NAME }}
           stdlib: ${{ matrix.stdlib }}
           clang_gcc_toolchain: ${{ matrix.clang_gcc_toolchain || '' }}
-          cache_enabled: 'false' # Disable caching for self hosted runner
-          ccache_max_size: '100G'
 
       - name: Set artifact name
         id: set-artifact-name

src/ripple/overlay/impl/OverlayImpl.cpp

@@ -484,44 +484,61 @@ OverlayImpl::start()
     m_peerFinder->setConfig(config);
     m_peerFinder->start();
 
-    auto addIps = [&](std::vector<std::string> bootstrapIps) -> void {
+    auto addIps = [this](std::vector<std::string> ips, bool fixed) {
         beast::Journal const& j = app_.journal("Overlay");
-        for (auto& ip : bootstrapIps)
+        for (auto& ip : ips)
         {
             std::size_t pos = ip.find('#');
             if (pos != std::string::npos)
                 ip.erase(pos);
 
-            JLOG(j.trace()) << "Found boostrap IP: " << ip;
+            JLOG(j.trace())
+                << "Found " << (fixed ? "fixed" : "bootstrap") << " IP: " << ip;
         }
 
         m_resolver.resolve(
-            bootstrapIps,
-            [&](std::string const& name,
+            ips,
+            [this, fixed](
+                std::string const& name,
                 std::vector<beast::IP::Endpoint> const& addresses) {
-                std::vector<std::string> ips;
-                ips.reserve(addresses.size());
                 beast::Journal const& j = app_.journal("Overlay");
+                std::string const base("config: ");
+
+                std::vector<beast::IP::Endpoint> eps;
+                eps.reserve(addresses.size());
                 for (auto const& addr : addresses)
                 {
-                    std::string addrStr = addr.port() == 0
-                        ? to_string(addr.at_port(DEFAULT_PEER_PORT))
-                        : to_string(addr);
-                    JLOG(j.trace()) << "Parsed boostrap IP: " << addrStr;
-                    ips.push_back(addrStr);
+                    auto ep = addr.port() == 0 ? addr.at_port(DEFAULT_PEER_PORT)
+                                               : addr;
+                    JLOG(j.trace())
+                        << "Parsed " << (fixed ? "fixed" : "bootstrap")
+                        << " IP: " << ep;
+                    eps.push_back(ep);
                 }
 
-                std::string const base("config: ");
-                if (!ips.empty())
-                    m_peerFinder->addFallbackStrings(base + name, ips);
+                if (eps.empty())
+                    return;
+
+                if (fixed)
+                {
+                    m_peerFinder->addFixedPeer(base + name, eps);
+                }
+                else
+                {
+                    std::vector<std::string> strs;
+                    strs.reserve(eps.size());
+                    for (auto const& ep : eps)
+                        strs.push_back(to_string(ep));
+                    m_peerFinder->addFallbackStrings(base + name, strs);
+                }
             });
     };
 
     if (!app_.config().IPS.empty())
-        addIps(app_.config().IPS);
+        addIps(app_.config().IPS, false);
 
     if (!app_.config().IPS_FIXED.empty())
-        addIps(app_.config().IPS_FIXED);
+        addIps(app_.config().IPS_FIXED, true);
 
     auto const timer = std::make_shared<Timer>(*this);
     std::lock_guard lock(mutex_);