diff --git a/api/v1/inline_types.go b/api/v1/inline_types.go
index 17284d7a..705246ff 100644
--- a/api/v1/inline_types.go
+++ b/api/v1/inline_types.go
@@ -139,6 +139,9 @@ type BaseAgentSpec struct {
 	// Alternative to `Host` for referencing a different Maven repo.
 	// +kubebuilder:validation:Optional
 	MvnRepoUrl string `json:"instanaMvnRepoUrl,omitempty"`
+	// Custom agent charts url.
+	// +kubebuilder:validation:Optional
+	ChartsUrl string `json:"charts_url,omitempty"`
 }
 
 type AgentPodSpec struct {
diff --git a/bundle/manifests/instana.io_agents.yaml b/bundle/manifests/instana.io_agents.yaml
index 9a38862e..f810e0ac 100644
--- a/bundle/manifests/instana.io_agents.yaml
+++ b/bundle/manifests/instana.io_agents.yaml
@@ -77,6 +77,9 @@ spec:
                     description: Supply Agent configuration e.g. for configuring certain
                       Sensors.
                     type: string
+                  charts_url:
+                    description: Custom agent charts url.
+                    type: string
                   downloadKey:
                     description: The DownloadKey, sometimes known as "sales key",
                       that allows you to download software from Instana. It might
diff --git a/config/crd/bases/instana.io_agents.yaml b/config/crd/bases/instana.io_agents.yaml
index 808e6ef1..e67c5b86 100644
--- a/config/crd/bases/instana.io_agents.yaml
+++ b/config/crd/bases/instana.io_agents.yaml
@@ -61,6 +61,9 @@ spec:
                       - key
                       type: object
                     type: array
+                  charts_url:
+                    description: Custom agent charts url.
+                    type: string
                   configuration:
                     description: Mount in a ConfigMap with Agent configuration. Alternative
                       to the `configuration_yaml` field.
diff --git a/config/rbac/role.yaml b/config/rbac/role.yaml
index d9808c2d..e67889ad 100644
--- a/config/rbac/role.yaml
+++ b/config/rbac/role.yaml
@@ -46,6 +46,8 @@ rules:
   - 'namespaces'
   - 'services'
   - 'deployments'
+  - 'nodes/stats'
+  - 'nodes/metrics'
   verbs:
   - create
   - delete
@@ -85,6 +87,9 @@ rules:
 - nonResourceURLs:
   - '/version'
   - '/healthz'
+  - "/metrics"
+  - "/stats/summary"
+  - "/metrics/cadvisor"
   verbs:
   - 'get'
 - apiGroups:
diff --git a/config/samples/instana_v1_extended_instanaagent.yaml b/config/samples/instana_v1_extended_instanaagent.yaml
index 7117fe57..b9a4a631 100644
--- a/config/samples/instana_v1_extended_instanaagent.yaml
+++ b/config/samples/instana_v1_extended_instanaagent.yaml
@@ -98,6 +98,9 @@ spec:
     # You can leave this empty, or use this to configure your instana agent.
     # See https://docs.instana.io/setup_and_manage/host_agent/on/kubernetes/
 
+  # Custom agent charts URL that can be used in air gapped envs
+    charts_url: some-link
+
   # openshift specifies whether the cluster role should include openshift permissions and other tweaks to the YAML.
   # The chart will try to auto-detect if the cluster is OpenShift, so you will likely not even need to set this explicitly.
   # openshift: true
diff --git a/controllers/reconciliation/helm/agent_reconciliation.go b/controllers/reconciliation/helm/agent_reconciliation.go
index 6953e7cc..b8642659 100644
--- a/controllers/reconciliation/helm/agent_reconciliation.go
+++ b/controllers/reconciliation/helm/agent_reconciliation.go
@@ -30,16 +30,17 @@ import (
 )
 
 const (
-	helmRepo       = "https://agents.instana.io/helm"
 	agentChartName = "instana-agent"
 )
 
 var (
 	settings *cli.EnvSettings
+	helmRepo string
 )
 
 func init() {
 	settings = cli.New()
+	helmRepo = "https://agents.instana.io/helm"
 	settings.RepositoryConfig = helmRepo
 }
 
@@ -115,6 +116,16 @@ func (h *HelmReconciliation) CreateOrUpdate(_ ctrl.Request, crdInstance *instana
 		return err
 	}
 
+	if agentConfig, ok := yamlMap["agent"]; ok {
+		if agentConfigMap, mapFound := agentConfig.(map[string]interface{}); mapFound {
+			if helmUrl, urlFound := agentConfigMap["charts_url"]; urlFound {
+				h.log.Info(fmt.Sprintf("Custom charts url found. Setting it to %s", helmUrl))
+				helmRepo = fmt.Sprintf("%v", helmUrl)
+				settings.RepositoryConfig = helmRepo
+			}
+		}
+	}
+
 	// Find out if there's an Agent chart already installed or need a fresh install
 	histClient := action.NewHistory(h.helmCfg)
 	histClient.Max = 1