wip! dbus

.github/actions/setup-integration-tests/action.yaml

@@ -76,7 +76,7 @@ runs:
     # I'd rather test against that.
     #   -trs, 6 Jan 2023
     - if: runner.os == 'Linux'
-      shell: bash -l -eo pipefail {0}
+      shell: bash -l -eo pipefail -x {0}
       env:
         GITHUB_TOKEN: ${{ github.token }}
       run: |
@@ -96,6 +96,13 @@ runs:
         sudo dpkg -i singularity.deb
         singularity --version
 
+        # Set up a lingering DBus service (required for Singularity's usage of
+        # cgroups v2).
+        sudo loginctl enable-linger "$USER"
+        systemctl --user enable --now dbus.socket
+        echo "XDG_RUNTIME_DIR=/run/user/$(id -u)" | tee -a "$GITHUB_ENV"
+        echo "DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/$(id -u)/bus" | tee -a "$GITHUB_ENV"
+
     # Clone the small build we'll use as an integration test case.
     - run: git clone https://github.com/nextstrain/zika-tutorial
       shell: bash -l -eo pipefail {0}