Adopt existing Argo CD applications before apply

lab.sh

@@ -94,6 +94,28 @@ adopt_tofu_kubernetes_resource() {
     tofu -chdir="${REPO_ROOT}/${stack}" import -input=false "${resource_address}" "${import_id}"
 }
 
+adopt_tofu_kubernetes_manifest() {
+    local stack="$1"
+    local resource_address="$2"
+    local namespace="$3"
+    local kubectl_kind="$4"
+    local api_version="$5"
+    local manifest_kind="$6"
+    local resource_name="$7"
+    local import_id
+
+    if tofu_state_has_resource "${stack}" "${resource_address}"; then
+        return 0
+    fi
+    if ! kubernetes_resource_exists "${namespace}" "${kubectl_kind}" "${resource_name}"; then
+        return 0
+    fi
+
+    import_id="apiVersion=${api_version},kind=${manifest_kind},namespace=${namespace},name=${resource_name}"
+    echo "Importing existing Kubernetes ${manifest_kind} ${namespace}/${resource_name} into ${stack} state (${resource_address})..."
+    tofu -chdir="${REPO_ROOT}/${stack}" import -input=false "${resource_address}" "${import_id}"
+}
+
 adopt_platform_existing_resources() {
     local stack="bootstrap/platform"
 
@@ -122,6 +144,36 @@ adopt_platform_existing_resources() {
         "monitoring"
 }
 
+adopt_apps_existing_resources() {
+    local stack="bootstrap/apps"
+    local namespace="${TF_VAR_argocd_namespace:-argocd}"
+
+    adopt_tofu_kubernetes_manifest \
+        "${stack}" \
+        'kubernetes_manifest.argocd_application["container-registry"]' \
+        "${namespace}" \
+        "applications.argoproj.io" \
+        "argoproj.io/v1alpha1" \
+        "Application" \
+        "container-registry"
+    adopt_tofu_kubernetes_manifest \
+        "${stack}" \
+        'kubernetes_manifest.argocd_application["website-production"]' \
+        "${namespace}" \
+        "applications.argoproj.io" \
+        "argoproj.io/v1alpha1" \
+        "Application" \
+        "website-production"
+    adopt_tofu_kubernetes_manifest \
+        "${stack}" \
+        'kubernetes_manifest.argocd_application["demos-static"]' \
+        "${namespace}" \
+        "applications.argoproj.io" \
+        "argoproj.io/v1alpha1" \
+        "Application" \
+        "demos-static"
+}
+
 run_tofu_stack() {
     local stack="$1"
     local -a apply_args=(-auto-approve)
@@ -134,6 +186,9 @@ run_tofu_stack() {
     if [[ "${stack}" == "bootstrap/platform" ]]; then
         adopt_platform_existing_resources
     fi
+    if [[ "${stack}" == "bootstrap/apps" ]]; then
+        adopt_apps_existing_resources
+    fi
     tofu -chdir="${REPO_ROOT}/${stack}" apply "${apply_args[@]}"
 }