diff --git a/data/common/common.yaml b/data/common/common.yaml
--- a/data/common/common.yaml
+++ b/data/common/common.yaml
@@ -2524,6 +2524,8 @@
       - swh.loader.mercurial.tasks.LoadMercurial
       - swh.loader.mercurial.tasks.LoadArchiveMercurial
 
+swh::deploy::worker::opam::root_directory: /tmp/opam/
+
 swh::deploy::worker::loader_opam::config_file: "%{hiera('swh::conf_directory')}/loader_opam.yml"
 swh::deploy::worker::loader_opam::concurrency: 1
 swh::deploy::worker::loader_opam::private_tmp: true
diff --git a/site-modules/profile/manifests/swh/deploy/worker/loader_opam.pp b/site-modules/profile/manifests/swh/deploy/worker/loader_opam.pp
--- a/site-modules/profile/manifests/swh/deploy/worker/loader_opam.pp
+++ b/site-modules/profile/manifests/swh/deploy/worker/loader_opam.pp
@@ -17,4 +17,34 @@
       Package[$packages],
     ],
   }
+
+  $opam_root = lookup('swh::deploy::worker::opam::root_directory')
+  file {$opam_root:
+    ensure => 'directory',
+    owner  => $user,
+    group  => $group,
+    recurse => true,
+    mode   => '0644',
+  }
+
+  # Template uses variables
+  #  - $user
+  #  - $group
+  #  - $opam_root
+  #  - $opam_manage_shared_state
+  $opam_manage_shared_state = "opam-manage-shared-state"
+  $opam_manage_shared_state_unit_template = "profile/swh/deploy/loader_opam/${opam_manage_shared_state}.service.erb"
+  $opam_manage_shared_state_timer_name = "${opam_manage_shared_state}.timer"
+  $opam_manage_shared_state_timer_template = "profile/swh/deploy/loader_opam/${opam_manage_shared_state_timer_name}.erb"
+
+  ::systemd::timer { $opam_manage_shared_state_timer_name:
+    timer_content    => template($opam_manage_shared_state_timer_template),
+    service_content  => template($opam_manage_shared_state_unit_template),
+    enable           => true,
+    require          => [
+      Package[$packages],
+      File[$opam_root],
+    ],
+  }
+
 }
diff --git a/site-modules/profile/templates/swh/deploy/loader_opam/opam-manage-shared-state.service.erb b/site-modules/profile/templates/swh/deploy/loader_opam/opam-manage-shared-state.service.erb
new file mode 100644
--- /dev/null
+++ b/site-modules/profile/templates/swh/deploy/loader_opam/opam-manage-shared-state.service.erb
@@ -0,0 +1,17 @@
+# Opam manage shared state unit file
+# Managed by puppet class profile::swh::deploy::worker::loader_opam
+# Changes will be overwritten
+
+[Unit]
+Description=Software Heritage Manage OPAM shared state
+Requires=network.target
+After=network.target
+
+[Service]
+User=<%= @user %>
+Group=<%= @group %>
+Type=simple
+ExecStart=/usr/bin/opam init --reinit --bare --no-setup --root <%= @opam_root %> opam https://opam.ocaml.org
+
+[Install]
+WantedBy=multi-user.target
diff --git a/site-modules/profile/templates/swh/deploy/loader_opam/opam-manage-shared-state.timer.erb b/site-modules/profile/templates/swh/deploy/loader_opam/opam-manage-shared-state.timer.erb
new file mode 100644
--- /dev/null
+++ b/site-modules/profile/templates/swh/deploy/loader_opam/opam-manage-shared-state.timer.erb
@@ -0,0 +1,11 @@
+[Install]
+WantedBy=timers.target
+
+[Timer]
+OnCalendar=daily
+AccuracySec=4h
+Persistent=true
+Unit=<%= @$opam_manage_shared_state %>.service
+
+[Unit]
+Description=Recurring webapp update savecodenow statuses