diff --git a/terraform/cos-lite/main.tf b/terraform/cos-lite/main.tf
index 0714ab7f..933f5bb7 100644
--- a/terraform/cos-lite/main.tf
+++ b/terraform/cos-lite/main.tf
@@ -109,7 +109,6 @@ resource "juju_integration" "alertmanager_loki" {
   }
 }
 
-
 resource "juju_integration" "grafana_source_alertmanager" {
   model = var.model
 
@@ -140,7 +139,6 @@ resource "juju_integration" "grafana_self_monitoring_prometheus" {
   }
 }
 
-
 # Provided by Prometheus
 
 resource "juju_integration" "prometheus_grafana_dashboards_provider" {
@@ -171,9 +169,6 @@ resource "juju_integration" "prometheus_grafana_source" {
   }
 }
 
-
-
-
 # Provided by Loki
 
 resource "juju_integration" "loki_grafana_dashboards_provider" {
@@ -218,7 +213,6 @@ resource "juju_integration" "loki_self_monitoring_prometheus" {
   }
 }
 
-
 # Provided by Catalogue
 
 resource "juju_integration" "catalogue_alertmanager" {
@@ -263,7 +257,6 @@ resource "juju_integration" "catalogue_prometheus" {
   }
 }
 
-
 # Provided by Traefik
 
 resource "juju_integration" "alertmanager_ingress" {
@@ -280,7 +273,6 @@ resource "juju_integration" "alertmanager_ingress" {
   }
 }
 
-
 resource "juju_integration" "catalogue_ingress" {
   model = var.model
 
@@ -351,30 +343,122 @@ resource "juju_integration" "traefik_self_monitoring_prometheus" {
   }
 }
 
+# Provided by Self-Signed-Certificates
+
+resource "juju_integration" "alertmanager_certificates" {
+  count = var.use_tls ? 1 : 0
+  model = var.model
+
+  application {
+    name     = module.ssc[0].app_name
+    endpoint = module.ssc[0].provides.certificates
+  }
+
+  application {
+    name     = module.alertmanager.app_name
+    endpoint = module.alertmanager.endpoints.certificates
+  }
+}
+
+resource "juju_integration" "catalogue_certificates" {
+  count = var.use_tls ? 1 : 0
+  model = var.model
+
+  application {
+    name     = module.ssc[0].app_name
+    endpoint = module.ssc[0].provides.certificates
+  }
+
+  application {
+    name     = module.catalogue.app_name
+    endpoint = module.catalogue.endpoints.certificates
+  }
+}
+
+resource "juju_integration" "grafana_certificates" {
+  count = var.use_tls ? 1 : 0
+  model = var.model
+
+  application {
+    name     = module.ssc[0].app_name
+    endpoint = module.ssc[0].provides.certificates
+  }
+
+  application {
+    name     = module.grafana.app_name
+    endpoint = module.grafana.endpoints.certificates
+  }
+}
+
+resource "juju_integration" "loki_certificates" {
+  count = var.use_tls ? 1 : 0
+  model = var.model
+
+  application {
+    name     = module.ssc[0].app_name
+    endpoint = module.ssc[0].provides.certificates
+  }
+
+  application {
+    name     = module.loki.app_name
+    endpoint = module.loki.endpoints.certificates
+  }
+}
+
+resource "juju_integration" "prometheus_certificates" {
+  count = var.use_tls ? 1 : 0
+  model = var.model
+
+  application {
+    name     = module.ssc[0].app_name
+    endpoint = module.ssc[0].provides.certificates
+  }
+
+  application {
+    name     = module.prometheus.app_name
+    endpoint = module.prometheus.endpoints.certificates
+  }
+}
+
+resource "juju_integration" "traefik_certificates" {
+  count = var.use_tls ? 1 : 0
+  model = var.model
+
+  application {
+    name     = module.ssc[0].app_name
+    endpoint = module.ssc[0].provides.certificates
+  }
+
+  application {
+    name     = module.traefik.app_name
+    endpoint = module.traefik.endpoints.certificates
+  }
+}
+
 # -------------- # Offers --------------
 
-resource "juju_offer" "alertmanager-karma-dashboard" {
+resource "juju_offer" "alertmanager_karma_dashboard" {
   name             = "alertmanager-karma-dashboard"
   model            = var.model
   application_name = module.alertmanager.app_name
   endpoint         = "karma-dashboard"
 }
 
-resource "juju_offer" "grafana-dashboards" {
+resource "juju_offer" "grafana_dashboards" {
   name             = "grafana-dashboards"
   model            = var.model
   application_name = module.grafana.app_name
   endpoint         = "grafana-dashboard"
 }
 
-resource "juju_offer" "loki-logging" {
+resource "juju_offer" "loki_logging" {
   name             = "loki-logging"
   model            = var.model
   application_name = module.loki.app_name
   endpoint         = "logging"
 }
 
-resource "juju_offer" "prometheus-receive-remote-write" {
+resource "juju_offer" "prometheus_receive_remote_write" {
   name             = "prometheus-receive-remote-write"
   model            = var.model
   application_name = module.prometheus.app_name
diff --git a/terraform/cos-lite/outputs.tf b/terraform/cos-lite/outputs.tf
index 3e9fed61..ddce7ec8 100644
--- a/terraform/cos-lite/outputs.tf
+++ b/terraform/cos-lite/outputs.tf
@@ -2,10 +2,10 @@
 
 output "offers" {
   value = {
-    alertmanager_karma_dashboard    = juju_offer.alertmanager-karma-dashboard
-    grafana_dashboards              = juju_offer.grafana-dashboards
-    loki_logging                    = juju_offer.loki-logging
-    prometheus_receive_remote_write = juju_offer.prometheus-receive-remote-write
+    alertmanager_karma_dashboard    = juju_offer.alertmanager_karma_dashboard
+    grafana_dashboards              = juju_offer.grafana_dashboards
+    loki_logging                    = juju_offer.loki_logging
+    prometheus_receive_remote_write = juju_offer.prometheus_receive_remote_write
   }
 }
 
diff --git a/terraform/cos/main.tf b/terraform/cos/main.tf
index f6ff85d7..dc59cd13 100644
--- a/terraform/cos/main.tf
+++ b/terraform/cos/main.tf
@@ -578,28 +578,28 @@ resource "juju_integration" "grafana_tracing_grafana_agent_traicing_provider" {
 
 # -------------- # Offers --------------
 
-resource "juju_offer" "alertmanager-karma-dashboard" {
+resource "juju_offer" "alertmanager_karma_dashboard" {
   name             = "alertmanager-karma-dashboard"
   model            = var.model
   application_name = module.alertmanager.app_name
   endpoint         = "karma-dashboard"
 }
 
-resource "juju_offer" "grafana-dashboards" {
+resource "juju_offer" "grafana_dashboards" {
   name             = "grafana-dashboards"
   model            = var.model
   application_name = module.grafana.app_name
   endpoint         = "grafana-dashboard"
 }
 
-resource "juju_offer" "loki-logging" {
+resource "juju_offer" "loki_logging" {
   name             = "loki-logging"
   model            = var.model
   application_name = module.loki.app_names.loki_coordinator
   endpoint         = "logging"
 }
 
-resource "juju_offer" "mimir-receive-remote-write" {
+resource "juju_offer" "mimir_receive_remote_write" {
   name             = "mimir-receive-remote-write"
   model            = var.model
   application_name = module.mimir.app_names.mimir_coordinator
diff --git a/terraform/cos/outputs.tf b/terraform/cos/outputs.tf
index ab886241..58e1ff83 100644
--- a/terraform/cos/outputs.tf
+++ b/terraform/cos/outputs.tf
@@ -2,10 +2,10 @@
 
 output "offers" {
   value = {
-    alertmanager_karma_dashboard = juju_offer.alertmanager-karma-dashboard
-    grafana_dashboards           = juju_offer.grafana-dashboards
-    loki_logging                 = juju_offer.loki-logging
-    mimir_receive_remote_write   = juju_offer.mimir-receive-remote-write
+    alertmanager_karma_dashboard = juju_offer.alertmanager_karma_dashboard
+    grafana_dashboards           = juju_offer.grafana_dashboards
+    loki_logging                 = juju_offer.loki_logging
+    mimir_receive_remote_write   = juju_offer.mimir_receive_remote_write
   }
 }