Switch build.yml to namespace runners

Author: graydon

.github/workflows/build.yml

@@ -15,21 +15,30 @@ jobs:
   complete:
     if: always()
     needs: [fmt, cargo-deny, rust-check-git-rev-deps, build]
-    runs-on: ubuntu-22.04
+    runs-on:
+      - namespace-profile-jammy-1-stellar-core
+      - nscloud-cache-exp-do-not-commit
     steps:
     - if: contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled')
       run: exit 1
 
   fmt:
-    runs-on: ubuntu-22.04
+    runs-on:
+      - namespace-profile-jammy-1-stellar-core
+      - nscloud-cache-exp-do-not-commit
     steps:
-    - uses: actions/checkout@v4
-    - run: rustup component add rustfmt
-    - run: rustup update
-    - run: cargo fmt --all --check
+      - uses: namespacelabs/nscloud-checkout-action@v7
+        with:
+          fetch-depth: 1
+          submodules: recursive
+      - run: rustup component add rustfmt
+      - run: rustup update
+      - run: cargo fmt --all --check
 
   cargo-deny:
-    runs-on: ubuntu-22.04
+    runs-on:
+      - namespace-profile-jammy-1-stellar-core
+      - nscloud-cache-exp-do-not-commit
     strategy:
       matrix:
         checks:
@@ -38,100 +47,69 @@ jobs:
     # Prevent sudden announcement of a new advisory from failing ci:
     continue-on-error: ${{ matrix.checks == 'advisories' }}
     steps:
-    - uses: actions/checkout@v4
-    - uses: EmbarkStudios/cargo-deny-action@8d73959fce1cdc8989f23fdf03bec6ae6a6576ef
-      with:
-        command: check ${{ matrix.checks }}
-        # leave arguments empty so we don't test --all-features
-        # which will see conflicting env versions
-        arguments:
+      - uses: namespacelabs/nscloud-checkout-action@v7
+        with:
+          fetch-depth: 1
+          submodules: recursive
+      - uses: EmbarkStudios/cargo-deny-action@8d73959fce1cdc8989f23fdf03bec6ae6a6576ef
+        with:
+          command: check ${{ matrix.checks }}
+          # leave arguments empty so we don't test --all-features
+          # which will see conflicting env versions
+          arguments:
 
   rust-check-git-rev-deps:
-    runs-on: ubuntu-22.04
+    runs-on:
+      - namespace-profile-jammy-1-stellar-core
+      - nscloud-cache-exp-do-not-commit
     steps:
-    - uses: actions/checkout@v4
-    - uses: stellar/actions/rust-check-git-rev-deps@main
+      - uses: namespacelabs/nscloud-checkout-action@v7
+        with:
+          fetch-depth: 1
+          submodules: recursive
+      - uses: stellar/actions/rust-check-git-rev-deps@main
 
   build:
-    runs-on: ubuntu-jammy-16-cores-amd64
-    env:
-      CACHED_PATHS: |
-        ~/.ccache
-        ~/.cargo
-        target
+    runs-on:
+      - namespace-profile-jammy-32-stellar-core;overrides.cache-tag=config-${{ matrix.toolchain }}-${{ matrix.protocol }}
     strategy:
       fail-fast: false
       matrix:
         toolchain: [ "gcc", "clang"]
         protocol: ["current", "next"]
-        scenario: ["", "--check-test-tx-meta"]
     steps:
       - name: Fix kernel mmap rnd bits
         # Asan in llvm provided in ubuntu 22.04 is incompatible with
         # high-entropy ASLR in much newer kernels that GitHub runners are
         # using leading to random crashes: https://reviews.llvm.org/D148280
         run: sudo sysctl vm.mmap_rnd_bits=28
 
-      # We start with as cheap as possible a cache probe to see if we have an exact hit on this
-      # git commit ID (for a given OS/toolchain/protocol). If so we can skip all subsequent
-      # steps: we already tested this exact SHA.
-      #
-      # Unfortunately due to the way github actions control flow works, we have to repeat the
-      # step 'if' condition in each step, and cannot actually "exit early" and skip the job.
-      # There are a lot of duplicate bug reports filed on this aspect of github actions, don't
-      # bother filing another.
-      - name: Probe Cache
-        id: cache
-        uses: actions/cache/restore@v4
+      - name: Checkout with Namespace Git mirrors cache
+        uses: namespacelabs/nscloud-checkout-action@v7
         with:
-          path: ${{ env.CACHED_PATHS }}
-          key: ${{ runner.os }}-${{ matrix.toolchain }}-${{ matrix.protocol }}-${{ github.sha }}
-          lookup-only: true
+          fetch-depth: 1
+          submodules: recursive
 
-      # When we have a cache miss on the exact commit SHA, we restore from the prefix without it.
-      # This will restore the most-recently-written cache (github does this date ordering itself).
-      - name: Restore Cache
-        if: steps.cache.outputs.cache-hit != 'true'
-        uses: actions/cache/restore@v4
+      - name: Configure Namespace cache volume
+        uses: namespacelabs/nscloud-cache-action@v1
         with:
-          path: ${{ env.CACHED_PATHS }}
-          key: ${{ steps.cache.outputs.cache-primary-key }}
-          restore-keys: |
-            ${{ runner.os }}-${{ matrix.toolchain }}-${{ matrix.protocol }}
+          path: |
+            ~/.cargo
+            build-${{matrix.toolchain}}-${{matrix.protocol}}
+
+      - name: install rustup
+        run: ./install-rust.sh
 
-      - uses: actions/checkout@v4
-        if: steps.cache.outputs.cache-hit != 'true'
-        with:
-           fetch-depth: 200
-           submodules: true
-      - name: install core packages
-        if: steps.cache.outputs.cache-hit != 'true'
-        run: |
-          sudo apt-get update
-          sudo apt-get -y install --no-install-recommends apt-utils dialog git iproute2 procps lsb-release
-      - name: install tool chain
-        if: steps.cache.outputs.cache-hit != 'true'
-        run: |
-          sudo apt-get -y install libstdc++-10-dev clang-format-12 ccache lldb
-          if test "${{ matrix.toolchain }}" = "gcc" ; then
-            sudo apt-get -y install cpp-10 gcc-10 g++-10
-          else
-            sudo apt-get -y install clang-12 llvm-12
-          fi
       - name: install rustup components
-        if: steps.cache.outputs.cache-hit != 'true'
         run: rustup component add rustfmt
+
       - name: install cargo-cache
-        if: steps.cache.outputs.cache-hit != 'true'
         run: cargo install --locked cargo-cache --version 0.8.3
+
       - name: install cargo-sweep
-        if: steps.cache.outputs.cache-hit != 'true'
         run: cargo install --locked cargo-sweep --version 0.7.0
-      - name: install dependencies
-        if: steps.cache.outputs.cache-hit != 'true'
-        run: sudo apt-get -y install postgresql git build-essential pkg-config autoconf automake libtool bison flex libpq-dev parallel libunwind-dev sed perl
+
       - name: Build
-        if: steps.cache.outputs.cache-hit != 'true'
         run: |
           if test "${{ matrix.toolchain }}" = "gcc" ; then
             export CC='gcc'
@@ -141,11 +119,4 @@ jobs:
             export CXX='clang++'
           fi
           echo Build with $CC and $CXX
-          ./ci-build.sh --use-temp-db --protocol ${{ matrix.protocol }} ${{ matrix.scenario }}
-
-      # We only _save_ to the cache when we had a cache miss, are running on master, and are the non-txmeta scenario.
-      - uses: actions/cache/save@v4
-        if: ${{ steps.cache.outputs.cache-hit != 'true' && github.ref_name == 'master' && matrix.scenario == ''}}
-        with:
-          path: ${{ env.CACHED_PATHS }}
-          key: ${{ steps.cache.outputs.cache-primary-key }}
+          ./ci-build.sh --use-temp-db --protocol ${{ matrix.protocol }}