Fix arg

Part of https://www.notion.so/Support-custom-domains-in-deploy-laconic-com-18aa6b22d4728067a44ae27090c02ce5 and cerc-io/snowballtools-base#47

- Set `value` (IP address for `A` resource) in the DNS records
- Update `deploy-webapp-from-registry` command with an option to pass k8s cluster IP address (only required with fqdn policy `allow`)

Reviewed-on: cerc-io/stack-orchestrator#963
Reviewed-by: ashwin <ashwin@noreply.git.vdb.to>
Co-authored-by: Prathamesh Musale <prathamesh.musale0@gmail.com>
Co-committed-by: Prathamesh Musale <prathamesh.musale0@gmail.com>

stack_orchestrator/deploy/k8s/cluster_info.py

@@ -114,22 +114,27 @@ class ClusterInfo:
                         nodeports.append(service)
         return nodeports
 
-    def get_ingress(self, use_tls=False, certificate=None, cluster_issuer="letsencrypt-prod"):
+    def get_ingress(self, use_tls=False, certificate_by_host={}, cluster_issuer="letsencrypt-prod"):
         # No ingress for a deployment that has no http-proxy defined, for now
         http_proxy_info_list = self.spec.get_http_proxy()
-        ingress = None
+        if not http_proxy_info_list:
-        if http_proxy_info_list:
+            return None
-            # TODO: handle multiple definitions
+
-            http_proxy_info = http_proxy_info_list[0]
+        tls = [] if use_tls else None
+        rules = []
+        for http_proxy_info in http_proxy_info_list:
             if opts.o.debug:
                 print(f"http-proxy: {http_proxy_info}")
             # TODO: good enough parsing for webapp deployment for now
             host_name = http_proxy_info["host-name"]
-            rules = []
+            certificate = certificate_by_host[host_name] if host_name in certificate_by_host else None
-            tls = [client.V1IngressTLS(
+
-                hosts=certificate["spec"]["dnsNames"] if certificate else [host_name],
+            if use_tls:
-                secret_name=certificate["spec"]["secretName"] if certificate else f"{self.app_name}-tls"
+                tls.append(client.V1IngressTLS(
-            )] if use_tls else None
+                    hosts=certificate["spec"]["dnsNames"] if certificate else [host_name],
+                    secret_name=certificate["spec"]["secretName"] if certificate else f"{self.app_name}-{host_name}-tls"
+                ))
+
             paths = []
             for route in http_proxy_info["routes"]:
                 path = route["path"]
@@ -156,24 +161,24 @@ class ClusterInfo:
                     paths=paths
                 )
             ))
-            spec = client.V1IngressSpec(
+        spec = client.V1IngressSpec(
-                tls=tls,
+            tls=tls,
-                rules=rules
+            rules=rules
-            )
+        )
 
-            ingress_annotations = {
+        ingress_annotations = {
-                "kubernetes.io/ingress.class": "nginx",
+            "kubernetes.io/ingress.class": "nginx",
-            }
+        }
-            if not certificate:
+        if not certificate:
-                ingress_annotations["cert-manager.io/cluster-issuer"] = cluster_issuer
+            ingress_annotations["cert-manager.io/cluster-issuer"] = cluster_issuer
 
-            ingress = client.V1Ingress(
+        ingress = client.V1Ingress(
-                metadata=client.V1ObjectMeta(
+            metadata=client.V1ObjectMeta(
-                    name=f"{self.app_name}-ingress",
+                name=f"{self.app_name}-ingress",
-                    annotations=ingress_annotations
+                annotations=ingress_annotations
-                ),
+            ),
-                spec=spec
+            spec=spec
-            )
+        )
         return ingress
 
     # TODO: suppoprt multiple services

stack_orchestrator/deploy/k8s/deploy_k8s.py

@@ -227,15 +227,18 @@ class K8sDeployer(Deployer):
         self._create_volume_data()
         self._create_deployment()
 
-        http_proxy_info = self.cluster_info.spec.get_http_proxy()
+        http_proxy_info_list = self.cluster_info.spec.get_http_proxy()
         # Note: at present we don't support tls for kind (and enabling tls causes errors)
-        use_tls = http_proxy_info and not self.is_kind()
+        use_tls = http_proxy_info_list and not self.is_kind()
-        certificate = self._find_certificate_for_host_name(http_proxy_info[0]["host-name"]) if use_tls else None
+        certificate_by_host = {}
-        if opts.o.debug:
+        if use_tls:
-            if certificate:
+            for http_proxy_info in http_proxy_info_list:
-                print(f"Using existing certificate: {certificate}")
+                certificate = self._find_certificate_for_host_name(http_proxy_info["host-name"])
+                if opts.o.debug and certificate:
+                    print(f"Using existing certificate: {certificate}")
+                certificate_by_host[http_proxy_info["host-name"]] = certificate
 
-        ingress: client.V1Ingress = self.cluster_info.get_ingress(use_tls=use_tls, certificate=certificate)
+        ingress: client.V1Ingress = self.cluster_info.get_ingress(use_tls=use_tls, certificate_by_host=certificate_by_host)
         if ingress:
             if opts.o.debug:
                 print(f"Sending this ingress: {ingress}")
@@ -381,36 +384,46 @@ class K8sDeployer(Deployer):
         if not pods:
             return
 
-        hostname = "?"
+        tls_by_host = {}
-        ip = "?"
-        tls = "?"
         try:
             ingress = self.networking_api.read_namespaced_ingress(namespace=self.k8s_namespace,
                                                                   name=self.cluster_info.get_ingress().metadata.name)
 
-            cert = self.custom_obj_api.get_namespaced_custom_object(
-                group="cert-manager.io",
-                version="v1",
-                namespace=self.k8s_namespace,
-                plural="certificates",
-                name=ingress.spec.tls[0].secret_name
-            )
-
-            hostname = ingress.spec.rules[0].host
             ip = ingress.status.load_balancer.ingress[0].ip
-            tls = "notBefore: %s; notAfter: %s; names: %s" % (
+            for rule in ingress.spec.rules:
-                cert["status"]["notBefore"], cert["status"]["notAfter"], ingress.spec.tls[0].hosts
+                hostname = rule.host
-            )
+                tls_spec = next((tls for tls in ingress.spec.tls if hostname in tls.hosts), None)
+                if tls_spec:
+                    cert = self.custom_obj_api.get_namespaced_custom_object(
+                        group="cert-manager.io",
+                        version="v1",
+                        namespace=self.k8s_namespace,
+                        plural="certificates",
+                        name=tls_spec.secret_name
+                    )
+                    tls = "notBefore: %s; notAfter: %s; names: %s" % (
+                        cert["status"]["notBefore"], cert["status"]["notAfter"], tls_spec.hosts
+                    )
+                    tls_by_host[hostname] = tls
+                else:
+                    tls_by_host[hostname] = None
         except:  # noqa: E722
             pass
 
         print("Ingress:")
-        print("\tHostname:", hostname)
+        if len(tls_by_host) == 0:
-        print("\tIP:", ip)
+            print("\tHostname:", "?")
-        print("\tTLS:", tls)
+            print("\tIP:", "?")
-        print("")
+            print("\tTLS:", "?")
-        print("Pods:")
+            print("")
 
+        for hostname, tls in tls_by_host.items():
+            print("\tHostname:", hostname)
+            print("\tIP:", ip)
+            print("\tTLS:", tls)
+            print("")
+
+        print("Pods:")
         for p in pods:
             if p.metadata.deletion_timestamp:
                 print(f"\t{p.metadata.namespace}/{p.metadata.name}: Terminating ({p.metadata.deletion_timestamp})")

stack_orchestrator/deploy/webapp/deploy_webapp.py

@@ -13,12 +13,16 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http:#www.gnu.org/licenses/>.
 
+import shutil
+from typing import List
 import click
 import os
+import yaml
 from pathlib import Path
 from urllib.parse import urlparse
 from tempfile import NamedTemporaryFile
 
+from stack_orchestrator import constants
 from stack_orchestrator.util import error_exit, global_options2
 from stack_orchestrator.deploy.deployment_create import init_operation, create_operation
 from stack_orchestrator.deploy.deploy import create_deploy_context
@@ -36,25 +40,38 @@ def _fixup_container_tag(deployment_dir: str, image: str):
         wfile.write(contents)
 
 
-def _fixup_url_spec(spec_file_name: str, url: str):
+def _fixup_url_spec(spec_file_name: str, urls: List[str]):
-    # url is like: https://example.com/path
-    parsed_url = urlparse(url)
-    http_proxy_spec = f'''
-  http-proxy:
-    - host-name: {parsed_url.hostname}
-      routes:
-        - path: '{parsed_url.path if parsed_url.path else "/"}'
-          proxy-to: webapp:80
-    '''
     spec_file_path = Path(spec_file_name)
-    with open(spec_file_path) as rfile:
+
-        contents = rfile.read()
+    # Load existing spec
-        contents = contents + http_proxy_spec
+    with open(spec_file_path, "r") as file:
-    with open(spec_file_path, "w") as wfile:
+        spec_data = yaml.safe_load(file) or {}
-        wfile.write(contents)
+
+    # Build new http-proxy entries
+    http_proxy_entries = []
+    for url in urls:
+        parsed_url = urlparse(url)
+        http_proxy_entries.append({
+            "host-name": parsed_url.hostname,
+            "routes": [
+                {
+                    "path": parsed_url.path if parsed_url.path else "/",
+                    "proxy-to": "webapp:80"
+                }
+            ]
+        })
+
+    # Update the spec
+    if "network" not in spec_data:
+        spec_data["network"] = {}
+    spec_data["network"]["http-proxy"] = http_proxy_entries
+
+    # Write back the updated YAML
+    with open(spec_file_path, "w") as file:
+        yaml.dump(spec_data, file, default_flow_style=False, sort_keys=False)
 
 
-def create_deployment(ctx, deployment_dir, image, url, kube_config, image_registry, env_file):
+def create_deployment(ctx, deployment_dir, image, urls, kube_config, image_registry, env_file):
     # Do the equivalent of:
     # 1. laconic-so --stack webapp-template deploy --deploy-to k8s init --output webapp-spec.yml
     #   --config (eqivalent of the contents of my-config.env)
@@ -86,7 +103,7 @@ def create_deployment(ctx, deployment_dir, image, url, kube_config, image_regist
         None
     )
     # Add the TLS and DNS spec
-    _fixup_url_spec(spec_file_name, url)
+    _fixup_url_spec(spec_file_name, urls)
     create_operation(
         deploy_command_context,
         spec_file_name,
@@ -99,6 +116,20 @@ def create_deployment(ctx, deployment_dir, image, url, kube_config, image_regist
     os.remove(spec_file_name)
 
 
+def update_deployment(deployment_dir, image, urls, env_file):
+    # Update config if required
+    if env_file:
+        deployment_config_file = os.path.join(deployment_dir, "config.env")
+        shutil.copyfile(env_file, deployment_config_file)
+
+    # Update existing deployment spec with new urls
+    _fixup_url_spec(os.path.join(deployment_dir, constants.spec_file_name), urls)
+
+    # Update the image name if required
+    if image:
+        _fixup_container_tag(deployment_dir, image)
+
+
 @click.group()
 @click.pass_context
 def command(ctx):
@@ -120,4 +151,4 @@ def command(ctx):
 def create(ctx, deployment_dir, image, url, kube_config, image_registry, env_file):
     '''create a deployment for the specified webapp container'''
 
-    return create_deployment(ctx, deployment_dir, image, url, kube_config, image_registry, env_file)
+    return create_deployment(ctx, deployment_dir, image, [url], kube_config, image_registry, env_file)

stack_orchestrator/deploy/webapp/deploy_webapp_from_registry.py

@@ -20,6 +20,7 @@ import shutil
 import sys
 import tempfile
 import time
+from typing import List
 import uuid
 import yaml
 
@@ -38,7 +39,8 @@ from stack_orchestrator.deploy.webapp.util import (
     file_hash,
     deploy_to_k8s,
     publish_deployment,
-    hostname_for_deployment_request,
+    get_requested_names,
+    hostnames_for_deployment_request,
     generate_hostname_for_app,
     match_owner,
     skip_by_tag,
@@ -47,13 +49,14 @@ from stack_orchestrator.deploy.webapp.util import (
 )
 
 
-def process_app_deployment_request(
+def process_app_deployment_request( # noqa
     ctx,
     laconic: LaconicRegistryClient,
     app_deployment_request,
     deployment_record_namespace,
     dns_record_namespace,
     default_dns_suffix,
+    dns_value,
     deployment_parent_dir,
     kube_config,
     image_registry,
@@ -75,44 +78,53 @@ def process_app_deployment_request(
     logger.log(f"Retrieved app record {app_deployment_request.attributes.application}")
 
     # 2. determine dns
-    requested_name = hostname_for_deployment_request(app_deployment_request, laconic)
+    requested_names = hostnames_for_deployment_request(app_deployment_request, laconic)
-    logger.log(f"Determined requested name: {requested_name}")
+    logger.log(f"Determined requested name(s): {','.join(str(x) for x in requested_names)}")
 
-    if "." in requested_name:
+    fqdns = []
-        if "allow" == fqdn_policy or "preexisting" == fqdn_policy:
+    for requested_name in requested_names:
-            fqdn = requested_name
+        if "." in requested_name:
+            if "allow" == fqdn_policy or "preexisting" == fqdn_policy:
+                fqdns.append(requested_name)
+            else:
+                raise Exception(
+                    f"{requested_name} is invalid: only unqualified hostnames are allowed."
+                )
         else:
-            raise Exception(
+            fqdns.append(f"{requested_name}.{default_dns_suffix}")
-                f"{requested_name} is invalid: only unqualified hostnames are allowed."
-            )
-    else:
-        fqdn = f"{requested_name}.{default_dns_suffix}"
 
     # Normalize case (just in case)
-    fqdn = fqdn.lower()
+    fqdns = [fqdn.lower() for fqdn in fqdns]
 
-    # 3. check ownership of existing dnsrecord vs this request
+    # 3. check ownership of existing dnsrecord(s) vs this request
-    dns_lrn = f"{dns_record_namespace}/{fqdn}"
+    dns_lrns = []
-    dns_record = laconic.get_record(dns_lrn)
+    existing_dns_records_by_lrns = {}
-    if dns_record:
+    for fqdn in fqdns:
-        matched_owner = match_owner(app_deployment_request, dns_record)
+        dns_lrn = f"{dns_record_namespace}/{fqdn}"
-        if not matched_owner and dns_record.attributes.request:
+        dns_lrns.append(dns_lrn)
-            matched_owner = match_owner(
-                app_deployment_request,
-                laconic.get_record(dns_record.attributes.request, require=True),
-            )
 
-        if matched_owner:
+        dns_record = laconic.get_record(dns_lrn)
-            logger.log(f"Matched DnsRecord ownership: {matched_owner}")
+        existing_dns_records_by_lrns[dns_lrn] = dns_record
-        else:
+
+        if dns_record:
+            matched_owner = match_owner(app_deployment_request, dns_record)
+            if not matched_owner and dns_record.attributes.request:
+                matched_owner = match_owner(
+                    app_deployment_request,
+                    laconic.get_record(dns_record.attributes.request, require=True),
+                )
+
+            if matched_owner:
+                logger.log(f"Matched DnsRecord ownership for {fqdn}: {matched_owner}")
+            else:
+                raise Exception(
+                    "Unable to confirm ownership of DnsRecord %s for request %s"
+                    % (dns_lrn, app_deployment_request.id)
+                )
+        elif "preexisting" == fqdn_policy:
             raise Exception(
-                "Unable to confirm ownership of DnsRecord %s for request %s"
+                f"No pre-existing DnsRecord {dns_lrn} could be found for request {app_deployment_request.id}."
-                % (dns_lrn, app_deployment_request.id)
             )
-    elif "preexisting" == fqdn_policy:
-        raise Exception(
-            f"No pre-existing DnsRecord {dns_lrn} could be found for request {app_deployment_request.id}."
-        )
 
     # 4. get build and runtime config from request
     env = {}
@@ -144,30 +156,49 @@ def process_app_deployment_request(
 
     # 5. determine new or existing deployment
     #   a. check for deployment lrn
-    app_deployment_lrn = f"{deployment_record_namespace}/{fqdn}"
+    app_deployment_lrns = [f"{deployment_record_namespace}/{fqdn}" for fqdn in fqdns]
     if app_deployment_request.attributes.deployment:
-        app_deployment_lrn = app_deployment_request.attributes.deployment
+        app_deployment_lrns = [app_deployment_request.attributes.deployment]
-    if not app_deployment_lrn.startswith(deployment_record_namespace):
+        if not app_deployment_lrns[0].startswith(deployment_record_namespace):
-        raise Exception(
+            raise Exception(
-            "Deployment LRN %s is not in a supported namespace"
+                "Deployment LRN %s is not in a supported namespace"
-            % app_deployment_request.attributes.deployment
+                % app_deployment_request.attributes.deployment
-        )
+            )
 
-    deployment_record = laconic.get_record(app_deployment_lrn)
+    # Target deployment dir
-    deployment_dir = os.path.join(deployment_parent_dir, fqdn)
+    deployment_dir = os.path.join(deployment_parent_dir, fqdns[-1])
+
+    # Existing deployment record: take the first lrn that resolves
+    deployment_record = None
+    fqdns_to_release = []
+    existing_deployment_dir = deployment_dir  # Default to target dir in case the app had been undeployed
+
+    for app_deployment_lrn in app_deployment_lrns:
+        deployment_record = laconic.get_record(app_deployment_lrn)
+        if deployment_record:
+            # Determine the deployment dir for existing deployment
+            dir_name = deployment_record.attributes.url.replace("https://", "")
+            existing_deployment_dir = os.path.join(deployment_parent_dir, dir_name)
+            if not os.path.exists(existing_deployment_dir):
+                raise Exception(
+                    "Deployment record %s exists, but not deployment dir %s. Please remove name."
+                    % (app_deployment_lrn, existing_deployment_dir)
+                )
+
+            previous_app_deployment_lrns: List[str] = deployment_record.names
+            previous_fqdns = [lrn.removeprefix(f"{deployment_record_namespace}/") for lrn in previous_app_deployment_lrns]
+            fqdns_to_release = list(set(previous_fqdns) - set(fqdns))
+
+            break
+
+    # Use the last fqdn for unique deployment container tag
     # At present we use this to generate a unique but stable ID for the app's host container
     # TODO: implement support to derive this transparently from the already-unique deployment id
-    unique_deployment_id = hashlib.md5(fqdn.encode()).hexdigest()[:16]
+    unique_deployment_id = hashlib.md5(fqdns[-1].encode()).hexdigest()[:16]
-    deployment_config_file = os.path.join(deployment_dir, "config.env")
     deployment_container_tag = "laconic-webapp/%s:local" % unique_deployment_id
     app_image_shared_tag = f"laconic-webapp/{app.id}:local"
     #   b. check for deployment directory (create if necessary)
-    if not os.path.exists(deployment_dir):
+    if not os.path.exists(existing_deployment_dir):
-        if deployment_record:
-            raise Exception(
-                "Deployment record %s exists, but not deployment dir %s. Please remove name."
-                % (app_deployment_lrn, deployment_dir)
-            )
         logger.log(
             f"Creating webapp deployment in: {deployment_dir} with container id: {deployment_container_tag}"
         )
@@ -175,13 +206,23 @@ def process_app_deployment_request(
             ctx,
             deployment_dir,
             deployment_container_tag,
-            f"https://{fqdn}",
+            [f"https://{fqdn}" for fqdn in fqdns],
             kube_config,
             image_registry,
             env_filename,
         )
-    elif env_filename:
+    else:
-        shutil.copyfile(env_filename, deployment_config_file)
+        # Rename deployment dir according to new request (last fqdn from given dns)
+        os.rename(existing_deployment_dir, deployment_dir)
+
+        # Update the image name deployment_container_tag
+        # Skip for redeployment as deployment_container_tag won't get built
+        updated_image = None
+        if deployment_record.attributes.application != app.id:
+            updated_image = deployment_container_tag
+
+        # Update the existing deployment
+        deploy_webapp.update_deployment(deployment_dir, updated_image, [f"https://{fqdn}" for fqdn in fqdns], env_filename)
 
     needs_k8s_deploy = False
     if force_rebuild:
@@ -231,10 +272,11 @@ def process_app_deployment_request(
     else:
         logger.log("Requested app is already deployed, skipping build and image push")
 
-    # 7. update config (if needed)
+    # 7. restart deployment on config or url spec change
     if (
         not deployment_record
-        or file_hash(deployment_config_file) != deployment_record.attributes.meta.config
+        or file_hash(os.path.join(deployment_dir, "config.env")) != deployment_record.attributes.meta.config
+        or len(fqdns_to_release) != 0
     ):
         needs_k8s_deploy = True
 
@@ -247,15 +289,28 @@ def process_app_deployment_request(
         laconic,
         app,
         deployment_record,
-        app_deployment_lrn,
+        app_deployment_lrns,
-        dns_record,
+        existing_dns_records_by_lrns,
-        dns_lrn,
+        dns_lrns,
+        dns_record_namespace,
         deployment_dir,
+        dns_value,
         app_deployment_request,
         webapp_deployer_record,
         logger,
     )
     logger.log("Publication complete.")
+
+    # 9. delete unused names from previous deployment (app and dns)
+    for fqdn in fqdns_to_release:
+        # Delete app deployment name and DNS name
+        deployment_name = "{deployment_record_namespace}/{fqdn}"
+        dns_name = "{deployment_record_namespace}/{fqdn}"
+
+        logger.log(f"Removing names {deployment_name} and {dns_name}")
+        laconic.delete_name(deployment_name)
+        laconic.delete_name(dns_name)
+
     logger.log("END - process_app_deployment_request")
 
 
@@ -304,6 +359,7 @@ def dump_known_requests(filename, requests, status="SEEN"):
     help="How to handle requests with an FQDN: prohibit, allow, preexisting",
     default="prohibit",
 )
+@click.option("--ip", help="IP address of the k8s deployment (to be set in DNS record)", default=None)
 @click.option("--record-namespace-dns", help="eg, lrn://laconic/dns", required=True)
 @click.option(
     "--record-namespace-deployments",
@@ -381,6 +437,7 @@ def command(  # noqa: C901
     only_update_state,
     dns_suffix,
     fqdn_policy,
+    ip,
     record_namespace_dns,
     record_namespace_deployments,
     dry_run,
@@ -429,6 +486,13 @@ def command(  # noqa: C901
         )
         sys.exit(2)
 
+    if fqdn_policy == "allow" and not ip:
+        print(
+            "--ip is required with 'allow' fqdn-policy",
+            file=sys.stderr,
+        )
+        sys.exit(2)
+
     tempdir = tempfile.mkdtemp()
     gpg = gnupg.GPG(gnupghome=tempdir)
 
@@ -506,21 +570,26 @@ def command(  # noqa: C901
                     result = "ERROR"
                     continue
 
-                requested_name = r.attributes.dns
+                requested_names = get_requested_names(r)
-                if not requested_name:
+                if len(requested_names) == 0:
-                    requested_name = generate_hostname_for_app(app)
+                    requested_names = [generate_hostname_for_app(app)]
                     main_logger.log(
-                        "Generating name %s for request %s." % (requested_name, r.id)
+                        "Generating name %s for request %s." % (requested_names[0], r.id)
                     )
 
-                if (
+                # Skip request if any of the names is superseded
-                    requested_name in skipped_by_name
+                for requested_name in requested_names:
-                    or requested_name in requests_by_name
+                    if (
-                ):
+                        requested_name in skipped_by_name
-                    main_logger.log(
+                        or requested_name in requests_by_name
-                        "Ignoring request %s, it has been superseded." % r.id
+                    ):
-                    )
+                        main_logger.log(
-                    result = "SKIP"
+                            "Ignoring request %s, it has been superseded." % r.id
+                        )
+                        result = "SKIP"
+                        break
+
+                if result == "SKIP":
                     continue
 
                 if skip_by_tag(r, include_tags, exclude_tags):
@@ -528,15 +597,20 @@ def command(  # noqa: C901
                         "Skipping request %s, filtered by tag (include %s, exclude %s, present %s)"
                         % (r.id, include_tags, exclude_tags, r.attributes.tags)
                     )
-                    skipped_by_name[requested_name] = r
+
+                    for requested_name in requested_names:
+                        skipped_by_name[requested_name] = r
+
                     result = "SKIP"
                     continue
 
                 main_logger.log(
                     "Found pending request %s to run application %s on %s."
-                    % (r.id, r.attributes.application, requested_name)
+                    % (r.id, r.attributes.application, ','.join(str(x) for x in requested_names))
                 )
-                requests_by_name[requested_name] = r
+
+                # Set request for on of the names
+                requests_by_name[requested_names[-1]] = r
             except Exception as e:
                 result = "ERROR"
                 main_logger.log(f"ERROR examining request {r.id}: " + str(e))
@@ -665,6 +739,7 @@ def command(  # noqa: C901
                         record_namespace_deployments,
                         record_namespace_dns,
                         dns_suffix,
+                        ip,
                         os.path.abspath(deployment_parent_dir),
                         kube_config,
                         image_registry,

stack_orchestrator/deploy/webapp/publish_webapp_deployer.py

@@ -76,6 +76,7 @@ def command(  # noqa: C901
             "name": hostname,
             "publicKey": pub_key,
             "paymentAddress": payment_address,
+            "deployerVersion": "1.0.0",
         }
     }
 

stack_orchestrator/deploy/webapp/registry_mutex.py

@@ -1,8 +1,59 @@
-import fcntl
 from functools import wraps
+import os
+import time
 
 # Define default file path for the lock
 DEFAULT_LOCK_FILE_PATH = "/tmp/registry_mutex_lock_file"
+LOCK_TIMEOUT = 30
+LOCK_RETRY_INTERVAL = 3
+
+
+def acquire_lock(client, lock_file_path, timeout):
+    # Lock alreay acquired by the current client
+    if client.mutex_lock_acquired:
+        return
+
+    while True:
+        try:
+            # Check if lock file exists and is potentially stale
+            if os.path.exists(lock_file_path):
+                with open(lock_file_path, 'r') as lock_file:
+                    timestamp = float(lock_file.read().strip())
+
+                # If lock is stale, remove the lock file
+                if time.time() - timestamp > timeout:
+                    print(f"Stale lock detected, removing lock file {lock_file_path}")
+                    os.remove(lock_file_path)
+                else:
+                    print(f"Lock file {lock_file_path} exists and is recent, waiting...")
+                    time.sleep(LOCK_RETRY_INTERVAL)
+                    continue
+
+            # Try to create a new lock file with the current timestamp
+            fd = os.open(lock_file_path, os.O_CREAT | os.O_EXCL | os.O_RDWR)
+            with os.fdopen(fd, 'w') as lock_file:
+                lock_file.write(str(time.time()))
+
+            client.mutex_lock_acquired = True
+            print(f"Registry lock acquired, {lock_file_path}")
+
+            # Lock successfully acquired
+            return
+
+        except FileExistsError:
+            print(f"Lock file {lock_file_path} exists, waiting...")
+            time.sleep(LOCK_RETRY_INTERVAL)
+
+
+def release_lock(client, lock_file_path):
+    try:
+        os.remove(lock_file_path)
+
+        client.mutex_lock_acquired = False
+        print(f"Registry lock released, {lock_file_path}")
+    except FileNotFoundError:
+        # Lock file already removed
+        pass
 
 
 def registry_mutex():
@@ -13,18 +64,13 @@ def registry_mutex():
             if self.mutex_lock_file:
                 lock_file_path = self.mutex_lock_file
 
-            with open(lock_file_path, 'w') as lock_file:
+            # Acquire the lock before running the function
-                try:
+            acquire_lock(self, lock_file_path, LOCK_TIMEOUT)
-                    # Try to acquire the lock
+            try:
-                    fcntl.flock(lock_file, fcntl.LOCK_EX)
+                return func(self, *args, **kwargs)
-
+            finally:
-                    # Call the actual function
+                # Release the lock after the function completes
-                    result = func(self, *args, **kwargs)
+                release_lock(self, lock_file_path)
-                finally:
-                    # Always release the lock
-                    fcntl.flock(lock_file, fcntl.LOCK_UN)
-
-            return result
 
         return wrapper
 

stack_orchestrator/deploy/webapp/util.py

@@ -21,6 +21,7 @@ import random
 import subprocess
 import sys
 import tempfile
+from typing import List
 import uuid
 import yaml
 
@@ -117,7 +118,6 @@ class LaconicRegistryClient:
     def __init__(self, config_file, log_file=None, mutex_lock_file=None):
         self.config_file = config_file
         self.log_file = log_file
-        self.mutex_lock_file = mutex_lock_file
         self.cache = AttrDict(
             {
                 "name_or_id": {},
@@ -126,6 +126,9 @@ class LaconicRegistryClient:
             }
         )
 
+        self.mutex_lock_file = mutex_lock_file
+        self.mutex_lock_acquired = False
+
     def whoami(self, refresh=False):
         if not refresh and "whoami" in self.cache:
             return self.cache["whoami"]
@@ -683,10 +686,12 @@ def publish_deployment(
     laconic: LaconicRegistryClient,
     app_record,
     deploy_record,
-    deployment_lrn,
+    deployment_lrns,
-    dns_record,
+    existing_dns_records_by_lrns,
-    dns_lrn,
+    dns_lrns: List[str],
+    dns_record_namespace,
     deployment_dir,
+    dns_value=None,
     app_deployment_request=None,
     webapp_deployer_record=None,
     logger=None,
@@ -698,40 +703,48 @@ def publish_deployment(
             int(deploy_record.attributes.version.split(".")[-1]) + 1
         )
 
-    if not dns_record:
+    dns_ids = []
-        dns_ver = "0.0.1"
+    for dns_lrn in dns_lrns:
-    else:
+        dns_record = existing_dns_records_by_lrns[dns_lrn]
-        dns_ver = "0.0.%d" % (int(dns_record.attributes.version.split(".")[-1]) + 1)
+        if not dns_record:
+            dns_ver = "0.0.1"
+        else:
+            dns_ver = "0.0.%d" % (int(dns_record.attributes.version.split(".")[-1]) + 1)
+
+        fqdn = dns_lrn.removeprefix(f"{dns_record_namespace}/")
+        uniq = uuid.uuid4()
+
+        new_dns_record = {
+            "record": {
+                "type": "DnsRecord",
+                "version": dns_ver,
+                "name": fqdn,
+                "resource_type": "A",
+                "meta": {"so": uniq.hex},
+            }
+        }
+        if app_deployment_request:
+            new_dns_record["record"]["request"] = app_deployment_request.id
+        if dns_value:
+            new_dns_record["record"]["value"] = dns_value
+
+        if logger:
+            logger.log("Publishing DnsRecord.")
+        dns_id = laconic.publish(new_dns_record, [dns_lrn])
+        dns_ids.append(dns_id)
 
     spec = yaml.full_load(open(os.path.join(deployment_dir, "spec.yml")))
-    fqdn = spec["network"]["http-proxy"][0]["host-name"]
+    last_fqdn = spec["network"]["http-proxy"][-1]["host-name"]
-
+    last_dns_id = dns_ids[-1]
-    uniq = uuid.uuid4()
-
-    new_dns_record = {
-        "record": {
-            "type": "DnsRecord",
-            "version": dns_ver,
-            "name": fqdn,
-            "resource_type": "A",
-            "meta": {"so": uniq.hex},
-        }
-    }
-    if app_deployment_request:
-        new_dns_record["record"]["request"] = app_deployment_request.id
-
-    if logger:
-        logger.log("Publishing DnsRecord.")
-    dns_id = laconic.publish(new_dns_record, [dns_lrn])
 
     new_deployment_record = {
         "record": {
             "type": "ApplicationDeploymentRecord",
             "version": deploy_ver,
-            "url": f"https://{fqdn}",
+            "url": f"https://{last_fqdn}",
             "name": app_record.attributes.name,
             "application": app_record.id,
-            "dns": dns_id,
+            "dns": last_dns_id,
             "meta": {
                 "config": file_hash(os.path.join(deployment_dir, "config.env")),
                 "so": uniq.hex,
@@ -753,21 +766,34 @@ def publish_deployment(
 
     if logger:
         logger.log("Publishing ApplicationDeploymentRecord.")
-    deployment_id = laconic.publish(new_deployment_record, [deployment_lrn])
+    deployment_id = laconic.publish(new_deployment_record, deployment_lrns)
-    return {"dns": dns_id, "deployment": deployment_id}
+    return {"dns": dns_ids, "deployment": deployment_id}
 
 
-def hostname_for_deployment_request(app_deployment_request, laconic):
+def get_requested_names(app_deployment_request):
-    dns_name = app_deployment_request.attributes.dns
+    request_dns = app_deployment_request.attributes.dns
-    if not dns_name:
+    return request_dns.split(",") if request_dns else []
+
+
+def hostnames_for_deployment_request(app_deployment_request, laconic):
+    requested_names = get_requested_names(app_deployment_request)
+
+    if len(requested_names) == 0:
         app = laconic.get_record(
             app_deployment_request.attributes.application, require=True
         )
-        dns_name = generate_hostname_for_app(app)
+        return [generate_hostname_for_app(app)]
-    elif dns_name.startswith("lrn://"):
+
-        record = laconic.get_record(dns_name, require=True)
+    dns_names = []
-        dns_name = record.attributes.name
+    for requested_name in requested_names:
-    return dns_name
+        dns_name = requested_name
+        if dns_name.startswith("lrn://"):
+            record = laconic.get_record(dns_name, require=True)
+            dns_name = record.attributes.name
+
+        dns_names.append(dns_name)
+
+    return dns_names
 
 
 def generate_hostname_for_app(app):
@@ -844,16 +870,21 @@ def confirm_payment(laconic: LaconicRegistryClient, record, payment_address, min
         )
         return False
 
-    # Check if the payment was already used on a
+    # Check if the payment was already used on a deployment
     used = laconic.app_deployments(
-        {"deployer": payment_address, "payment": tx.hash}, all=True
+        {"deployer": record.attributes.deployer, "payment": tx.hash}, all=True
     )
     if len(used):
-        logger.log(f"{record.id}: payment {tx.hash} already used on deployment {used}")
+        # Fetch the app name from request record
-        return False
+        used_request = laconic.get_record(used[0].attributes.request, require=True)
+
+        # Check that payment was used for deployment of same application
+        if record.attributes.application != used_request.attributes.application:
+            logger.log(f"{record.id}: payment {tx.hash} already used on a different application deployment {used}")
+            return False
 
     used = laconic.app_deployment_removals(
-        {"deployer": payment_address, "payment": tx.hash}, all=True
+        {"deployer": record.attributes.deployer, "payment": tx.hash}, all=True
     )
     if len(used):
         logger.log(