diff --git a/.zuul.yaml b/.zuul.yaml
index 9471e5487f..23927bd3f1 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -26,6 +26,8 @@
     parent: opendev-build-docker-image
     dependencies: opendev-buildset-registry
     abstract: true
+    vars:
+      docker_mirror_base_url: "http://{{ zuul_site_mirror_fqdn }}/deb-docker"
 
 - job:
     name: system-config-upload-image
@@ -961,7 +963,9 @@
       - publish-tox-docs-infra
     check:
       jobs:
-        - opendev-buildset-registry
+        - opendev-buildset-registry:
+            vars:
+              docker_mirror_base_url: "http://{{ zuul_site_mirror_fqdn }}/deb-docker"
         - tox-linters
         - puppet-beaker-rspec-puppet-4-infra-system-config
         - system-config-run-base
@@ -1015,7 +1019,9 @@
         - system-config-build-image-python-builder
     gate:
       jobs:
-        - opendev-buildset-registry
+        - opendev-buildset-registry:
+            vars:
+              docker_mirror_base_url: "http://{{ zuul_site_mirror_fqdn }}/deb-docker"
         - tox-linters
         - puppet-beaker-rspec-puppet-4-infra-system-config
         - system-config-run-base
diff --git a/docker/python-base/Dockerfile b/docker/python-base/Dockerfile
index 9a975eebcc..b2fb3177d7 100644
--- a/docker/python-base/Dockerfile
+++ b/docker/python-base/Dockerfile
@@ -16,8 +16,8 @@
 FROM python:slim
 
 RUN apt-get update \
-  && apt-get install -y dumb-init libjemalloc1 \
+  && apt-get install -y dumb-init libjemalloc2 \
   && apt-get clean \
   && rm -rf /var/lib/apt/lists/*
-ENV LD_PRELOAD /usr/lib/x86_64-linux-gnu/libjemalloc.so.1
+ENV LD_PRELOAD /usr/lib/x86_64-linux-gnu/libjemalloc.so.2
 ENTRYPOINT ["/usr/bin/dumb-init", "--"]
diff --git a/playbooks/zuul/gerrit/repos.yaml b/playbooks/zuul/gerrit/repos.yaml
index 2c962b006b..ba5d1fbae3 100644
--- a/playbooks/zuul/gerrit/repos.yaml
+++ b/playbooks/zuul/gerrit/repos.yaml
@@ -16,9 +16,14 @@
 
     # There is no stable branch for download-commands and no 3.0 branch of
     # singleusergroup so we need to check out the actual ref defined in the
-    # parent repo. Luckily, since we don't set a remote and this submodule
-    # uses relative paths, it should just clone the right thing and do it
-    # locally.
+    # parent repo. The default zuul remote, file:///dev/null, doesn't work
+    # here because relative paths cause it to be
+    # file:///dev/plugins/download-commands, which isn't a thing. Removing
+    # the origin causes git to use relative local filesystem paths.
+    - name: Remove origin remote
+      command: "git remote rm origin"
+      args:
+        chdir: /home/zuul/src/gerrit.googlesource.com/gerrit
     - name: Checkout core plugin submodules
       command: "git submodule update --init plugins/{{ item }}"
       args:
diff --git a/tools/install_modules_acceptance.sh b/tools/install_modules_acceptance.sh
index b49318bbf2..4c837b6552 100755
--- a/tools/install_modules_acceptance.sh
+++ b/tools/install_modules_acceptance.sh
@@ -23,7 +23,7 @@
 # library modules.
 
 # This script uses system-config/modules.env as the source of truth for modules
-# to install. It detects the presence of zuul-cloner to decide if we are running
+# to install. It detects the presence of /home/zuul to decide if we are running
 # in a zuul environment or not.
 
 ROOT=$(readlink -fn $(dirname $0)/..)
@@ -53,32 +53,16 @@ install_openstack() {
         modulepath='/etc/puppetlabs/code/modules'
     fi
 
-    cat > clonemap.yaml <<EOF
-clonemap:
-  - name: openstack/project-config
-    dest: /etc/project-config
-  - name: '(.*?)/puppet-(.*)'
-    dest: '$modulepath/\2'
-EOF
+    sudo -E git clone /home/zuul/src/opendev.org/openstack/project-config /etc/project-config
 
     project_names=""
     source ${ROOT}/modules.env
     for MOD in ${!INTEGRATION_MODULES[*]}; do
-        project_scope=$(basename `dirname $MOD`)
-        repo_name=`basename $MOD`
-        project_names+=" $project_scope/$repo_name"
+        project_scope=$(basename $(dirname $MOD))
+        repo_name=$(basename $MOD)
+        short_name=$(echo $repo_name | cut -f2- -d-)
+        sudo -E git clone /home/zuul/src/opendev.org/$project_scope/$repo_name $modulepath/$short_name
     done
-
-    sudo -E /usr/zuul-env/bin/zuul-cloner -m clonemap.yaml --cache-dir /opt/git \
-        https://git.openstack.org \
-        openstack/project-config \
-        $project_names
-
-    # Zuul v3 doesn't add remotes like origin but our use of puppet vcsrepo
-    # errors if it can't update itself against origin (because vcsrepo manages
-    # repos that it will initially clone). Address this by adding an origin
-    # for the vcsrepo managed repo here.
-    sudo git -C /etc/project-config remote add origin 'https://opendev.org/openstack/project-config'
 }
 
 install_all() {
@@ -86,7 +70,7 @@ install_all() {
 
 }
 
-if [ -e /usr/zuul-env/bin/zuul-cloner ] ; then
+if [ -d /home/zuul/src/opendev.org ] ; then
     install_external
     install_openstack
 else