diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 9716d5d539..ed91af93ea 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -45,6 +45,7 @@ on:
           - web
           - sidekiq
           - ops
+          - metrics
         default: all
       run_pre_deploy_migrations:
         description: Run `pre-deploy` job (schema-migrations) before service deployment.
@@ -103,7 +104,7 @@ jobs:
       fail-fast: true
       matrix:
         service: >-
-          ${{ inputs.server_types == 'all' && fromJSON('["web", "sidekiq", "ops"]') ||
+          ${{ inputs.server_types == 'all' && fromJSON('["web", "sidekiq", "ops", "metrics"]') ||
           fromJSON(format('["{0}"]', inputs.server_types)) }}
     env:
       repository_name: ${{ matrix.service == 'ops' && 'mavis/ops' || 'mavis/webapp' }}
@@ -328,7 +329,7 @@ jobs:
       fail-fast: false
       matrix:
         service: >-
-          ${{ inputs.server_types == 'all' && fromJSON('["web", "sidekiq", "ops"]') ||
+          ${{ inputs.server_types == 'all' && fromJSON('["web", "sidekiq", "ops", "metrics"]') ||
           fromJSON(format('["{0}"]', inputs.server_types)) }}
     steps:
       - name: Configure AWS Credentials
diff --git a/bin/docker-start b/bin/docker-start
index a9e3ec711d..5b7a813d1a 100755
--- a/bin/docker-start
+++ b/bin/docker-start
@@ -12,10 +12,15 @@ elif [ "$SERVER_TYPE" == "sidekiq" ]; then
   "$BIN_DIR"/prometheus_exporter &
   sleep 5
   exec "$BIN_DIR"/sidekiq
+elif [ "$SERVER_TYPE" == "metrics" ]; then
+  echo "Starting metrics publisher..."
+  "$BIN_DIR"/prometheus_exporter skip-server-labels &
+  sleep 5
+  exec "$BIN_DIR"/metrics-publisher
 elif [ "$SERVER_TYPE" == "none" ]; then
   echo "No server started"
   exec tail -f /dev/null  # Keep container running
 else
-  echo "SERVER_TYPE variable: '$SERVER_TYPE' unknown. Allowed values: web, sidekiq, none"
+  echo "SERVER_TYPE variable: '$SERVER_TYPE' unknown. Allowed values: web, sidekiq, metrics, none"
   exit 1
 fi
diff --git a/bin/metrics-publisher b/bin/metrics-publisher
new file mode 100755
index 0000000000..a41f62452e
--- /dev/null
+++ b/bin/metrics-publisher
@@ -0,0 +1,12 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+require_relative "../config/environment"
+require "prometheus_exporter/instrumentation"
+
+PrometheusExporter::Instrumentation::SidekiqStats.start
+PrometheusExporter::Instrumentation::SidekiqQueue.start(all_queues: true)
+
+at_exit { PrometheusExporter::Client.default.stop(wait_timeout_seconds: 10) }
+
+Kernel.sleep
diff --git a/bin/prometheus_exporter b/bin/prometheus_exporter
index 911c10de80..c98f790b78 100755
--- a/bin/prometheus_exporter
+++ b/bin/prometheus_exporter
@@ -27,18 +27,31 @@ def fetch_ecs_task_id
   end
 end
 
-if ARGV.include?("local")
-  task_id = "N/A"
-  service_name = "N/A"
-else
-  task_id = fetch_ecs_task_id
-  service_name = ENV["SERVICE_NAME"]
+# An explicitly-set env var (including empty string) overrides the default.
+# An empty value omits the label entirely — useful for the metrics task,
+# whose series identity must stay stable across container replacements.
+def resolve_label(env_key, &default)
+  if ENV.key?(env_key)
+    value = ENV[env_key]
+    return value.empty? ? nil : value
+  end
+
+  default.call
 end
 
+labels = {
+  "TaskId" => resolve_label("PROMETHEUS_TASK_ID_LABEL") do
+    ARGV.include?("skip-server-labels") ? nil : fetch_ecs_task_id
+  end,
+  "ServiceName" => resolve_label("PROMETHEUS_SERVICE_NAME_LABEL") do
+    ARGV.include?("skip-server-labels") ? nil : ENV["SERVICE_NAME"]
+  end
+}.compact
+
 runner = PrometheusExporter::Server::Runner.new(
   port: 9394,
   bind: "0.0.0.0",
-  label: { "TaskId" => task_id, "ServiceName" => service_name },
+  label: labels,
   type_collectors: [PrometheusExporter::CustomActiveRecordCollector],
 )
 
diff --git a/config/initializers/sidekiq.rb b/config/initializers/sidekiq.rb
index 1f7833ece5..8cb4902576 100644
--- a/config/initializers/sidekiq.rb
+++ b/config/initializers/sidekiq.rb
@@ -49,8 +49,9 @@ def call(_worker, job, _queue)
       PrometheusExporter::Instrumentation::Process.start type: "sidekiq"
       PrometheusExporter::Instrumentation::ActiveRecord.start
       PrometheusExporter::Instrumentation::SidekiqProcess.start
-      PrometheusExporter::Instrumentation::SidekiqQueue.start
-      PrometheusExporter::Instrumentation::SidekiqStats.start
+      # SidekiqStats and SidekiqQueue are global Redis-backed metrics published
+      # by the metrics task (bin/metrics-publisher) to avoid duplicate
+      # series across Sidekiq containers.
     end
 
     at_exit do