diff --git a/action.yaml b/action.yaml
index 1037952..19941a4 100644
--- a/action.yaml
+++ b/action.yaml
@@ -25,13 +25,17 @@ runs:
     - name: Install python pip
       run: python3 -m pip install --upgrade pip
       shell: bash
+    - name: Update APT cache
+      run: sudo apt-get update
+      shell: bash
     - name: Erase MySQL package
-      run: sudo apt-get purge mysql-* || true
+      run: sudo apt-get purge -y mysql-* || true
       shell: bash
     # This is to avoid RabbitMQ to fail at startup because a wrong version of erlang was installed
     - name: Workaround for RabbitMQ
       run: |
         # fix freaky leading "-e" in /etc/hosts
+        # see https://github.com/actions/runner-images/issues/12192
         sudo sed -i 's/^-e \+//g' /etc/hosts
         sudo apt-get purge -y esl-erlang || true
         sudo apt-get install -y erlang rabbitmq-server # if rabbitmq-server is not installed, tests must be stopped
@@ -60,7 +64,6 @@ runs:
         SERVICE_PASSWORD=secret
         SWIFT_HASH=1234123412341234
         LOGFILE=${{ inputs.log_dir }}/devstack.log
-        USE_PYTHON3=True
         INSTALL_TEMPEST=False
         GIT_BASE=https://github.com
         EOF
@@ -80,6 +83,11 @@ runs:
         EOF_CONF_OVERRIDES
       working-directory: ./devstack
       shell: bash
+    - name: Dump local.conf
+      run: |
+        cat local.conf
+      working-directory: ./devstack
+      shell: bash
     - name: Run devstack
       env:
         FORCE: ${{ inputs.force }}