April 2024 - openstack-discuss - lists.openstack.org

openstack python3-keystone package
by Sari Zidan 24 Apr '24

24 Apr '24

Dear OpenStack Support Team, I'm a DEVOPS engineer who works for Zadara LTD. I hope this email finds you well. I am reaching out to inquire about the python-keystone package provided by OpenStack. Currently, our company utilizes Ubuntu Bionic (18.04.6) on our machines, and we have the python-keystone package installed and in use. However, we are now looking to upgrade to Python 3 and, consequently, need to transition from python-keystone to python3-keystone. In our codebase, we've integrated interfaces and APIs that rely on functions from the python-keystone Python library. However, as we transition to python3-keystone, I've identified several deprecated functions and modules which are no longer supported within the new package. To address this, I'm reaching out for assistance in finding suitable replacements within the new package. The deprecated functions/modules that require replacement (no longer supported by the new package) are: 1. keystone.common.dependency.resolve_future_dependencies() 2. keystone.auth.controllers.Auth.validate_token() 3. keystone.contrib.ec2.controllers.Ec2ControllerV3 - specifically: create_credential(), delete_credential() and get_credential() 4. keystone.resource.controllers.ProjectV3 - specifically: get_project, update_project, delete_project, create_project. 5. keystone.assignment.controllers 6. keystone.token.persistence.PersistenceManager Any guidance or assistance you can provide on this matter would be greatly appreciated. Thank you for your attention to this inquiry, and I look forward to hearing from you soon.

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RDO Caracal 2024.1 Released
by Amy Marrich 24 Apr '24

24 Apr '24

RDO Caracal 2024.1 Released The RDO community is pleased to announce the general availability of the RDO build for OpenStack 2024.1 Caracal for RPM-based distributions, CentOS Stream and Red Hat Enterprise Linux. RDO is suitable for building private, public, and hybrid clouds. Caracal is the 29th release from the OpenStack project, which is the work of more than 1,000 contributors from around the world. The release is already available for CentOS Stream 9 on the CentOS mirror network in: http://mirror.stream.centos.org/SIGs/9-stream/cloud/x86_64/openstack-caraca… The RDO community project curates, packages, builds, tests and maintains a complete OpenStack component set for RHEL and CentOS Stream and is a member of the CentOS Cloud SIG. The Cloud SIG focuses on delivering a great user experience for CentOS users looking to build and maintain their own on-premise, public or hybrid clouds. All work on RDO and on the downstream release, Red Hat OpenStack Platform, is 100% open source, with all code changes going upstream first. The highlights of the broader upstream OpenStack project may be read via https://releases.openstack.org/caracal/highlights.html but here are some highlights: - Drivers with inactive CI were marked unsupported including Windows iSCSI Driver, Windows SMB Driver, Dell SC Series Storage Driver (iSCSI, FC), Dell VNX Storage Driver (FC, iSCSI) and Dell XtremeIO Storage Driver (iSCSI, FC). - New driver features were added, notably, Fujitsu ETERNUS DX extend volume on RAID group, Pure Storage synchronous replication, NetApp iSCSI LUN space allocation, Dell PowerFlex Active-Active support, Dell PowerMax configurable SRDF snapshots. - Designate now supports Catalog Zones (RFC 9432). This can improve the scalability of Designate pools managing a large number of zones and significantly reduce the provisioning time when adding additional DNS servers to a Designate pool. - Horizon now uses Django 4.2 as default and dropped Django 3.2 support. - Ironic has enabled RBAC support by default by changing the default values of [oslo_policy]enforce_scope and [oslo_policy]enforce_new_defaults to True. Additionally, we added [DEFAULT]rbac_service_project_name to define a project where users in that project are treated as having a service role. Please see Ironic release notes for full details. - Ironic has added the ability to drain active tasks from a conductor before shutdown. Sending a SIGUSR2 signal to an ironic-conductor will now attempt to complete running tasks with a timeout of [DEFAULT]drain_shutdown_timeout. No new tasks will be started on the conductor while it’s draining. - Support was added for the external-gateway-multihoming API extension. The L3 service plugins supporting it can now create multiple gateway ports per router. It is currently limited to the L3 OVN plugin. OpenStack Caracal is marked as Skip Level Upgrade Release Process or SLURP. According to this model ( https://governance.openstack.org/tc/resolutions/20220210-release-cadence-ad…) this means that upgrades will only be supported from the Antelope 2023.1 release. RDO Caracal 2024.1 has been built and tested with the recently released Ceph 18.2.0 Reef version (https://docs.ceph.com/en/latest/releases/reef/) which has been published by the CentOS Storage SIG in the official CentOS repositories. *Note:* Follow the instructions in [RDO documentation]( https://www.rdoproject.org/install/install-with-ceph/) to install OpenStack and Ceph services in the same host. During Caracal cycle, some projects have been retired or declared inactive upstream. As such, the following packages for some projects are not present in the RDO Caracal 2024.1 release: - cinderlib - dib-utils - ec2api-tempest-plugin - ec2api - murano - murano-agent - muranoclient - murano-dashboard - murano-tempest-plugin - sahara - sahara-dashboard - sahara-image-elements - sahara-plugin-ambari - sahara-plugin-cdh - sahara-plugin-mapr - sahara-plugin-spark - sahara-plugin-storm - sahara-plugin-vanilla - sahara-tests - senlin - senlinclient - puppet-ec2api - puppet-etcd - puppet-haproxy - puppet-module-data - puppet-murano - puppet-qdr - puppet-rsyslog - puppet-sahara During the next release we will continue working on retiring inactive packages in order to ensure RDO content quality and security. Contributors: - During the Caracal cycle, we saw the following new RDO contributors: - Marihan Girgis - Balazs Gibizer - Fiorella Yanac Welcome to all of you and Thank You So Much for participating! But we wouldn’t want to overlook anyone. A super massive Thank You to all 47 contributors who participated in producing this release. This list includes commits to rdo-packages, rdo-infra, and rdo-website repositories: - Ade Lee - Alfredo Moralejo Alonso - Amy Marrich (spotz) - Arx Cruz - Balazs Gibizer - Bernard Cafarelli - Bohdan Dobrelia - Chandan Kumar - Cyril Roelandt - Daniel Pawlik - Douglas Viroel - Emma Foley - Fabricio Aguiar - Fiorella Yanac - Gregory Thiemonge - Grzegorz Grasza - Harald Jensås - Jiří Podivín - Joan Francesc Gilabert - Joel Capitao - Karolina Kula - Lewis Denny - Lon Hohberger - Luigi Toscano - Luis Tomas Bolivar - Lukáš Piwowarski - Maor Blaustein - Marihan Girgis - Marios Andreou - Martin Kopec - Martin Magr - Mathieu Bultel - Michael Johnson - Nate Johnston - Pablo Rodríguez Nava - Priscila Gutierres - Rabi Mishra - Roberto Alfieri - Ronelle Landy - Shreshtha Joshi - Soniya Vyas - Szymon Datko - Takashi Kajinami - Tobias Urdin - Tristan De Cacqueray - Yatin Karel - Zane Bitter The Next Release Cycle At the end of one release, focus shifts immediately to the next release i.e Dalmatian. Get Started To spin up a proof of concept cloud, quickly, and on limited hardware, try an All-In-One Packstack installation. You can run RDO on a single node to get a feel for how it works. For those that do not have any hardware or physical resources, there is the OpenStack Global Passport Program. This is a collaborative effort between OpenStack public cloud providers to let you experience the freedom, performance and interoperability of open source infrastructure. You can quickly and easily gain access to OpenStack infrastructure via trial programs from participating OpenStack public cloud providers around the world. Get Help The RDO Project has our users(a)lists.rdoproject.org for RDO-specific users and operators. For more developer-oriented content we recommend joining the dev(a)lists.rdoproject.org mailing list. Remember to post a brief introduction about yourself and your RDO story. The mailing lists archives are all available at https://mail.rdoproject.org. You can also find extensive documentation on RDOproject.org. The #rdo channel on OFTC IRC is also an excellent place to find and give help. We also welcome comments and requests on the CentOS devel mailing list and the CentOS IRC channels (#centos, #centos-cloud, #centos-devel in Libera.Chat network), however we have a more focused audience within the RDO venues. Get Involved To get involved in the OpenStack RPM packaging effort, check out the RDO contribute pages, peruse the CentOS Cloud SIG page, and inhale the RDO packaging documentation. Join us in #rdo and on the OFTC IRC network and follow us on Twitter @RDOCommunity. You can also find us on Facebook and YouTube.

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[horizon] Weekly meeting cancellation
by Tatiana Ovchinnikova 24 Apr '24

24 Apr '24

Hello team! Apologies for the short notice. I am not feeling well, so I have to cancel today's meeting. See you next week! Tatiana

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[kolla-ansible] redeploy service to another host
by Andrej Moravčík 24 Apr '24

24 Apr '24

Hi. What is the correct procedure for redeploying (generic) service to another host group in Kolla-ansible multinode environment? I did not find such information in documentation. I have mistakenly deployed Opensearch to [control] host group instead of dedicated monitoring host. First, I tried to “rollback” deployment by disabling Opensearch in globals.yml (enable_central_logging: “no”) then performed "kolla-ansible -i multinode.yml reconfigure” but Docker containers “opensearch” and "opensearch-dashboards” are still running on all control nodes. Any advice would be greatly appreciated. Thank you. Regards — Andrej Moravčík ________________________________ Táto správa a jej prílohy sú dôverné. Prosím, narábajte s týmito informáciami ako s dôvernými a nezverejňujte, nekopírujte ani neposielajte tieto informácie bez predchádzajúceho súhlasu spoločnosti Aliter Technologies, a.s. Ak nie ste adresátom indikovaným v záhlaví tejto správy alebo želaný príjemca, upovedomte prosím spoločnosť Aliter Technologies, a.s. odpoveďou na tento e-mail a pôvodnú správu vymažte zo svojho systému. Aliter Technologies - registrovaná ochranná známka pre EU, USA This message and any attachments are confidential. Please treat the information as confidential, and do not disclose, copy or deliver this message to anyone without Aliter Technologies' approval. If you are not the addressee indicated in this message or an intended recipient please notify Aliter Technologies a.s. by return e-mail and delete the message from your system. Aliter Technologies - Registered in WIPO & U.S. Patent and Trademark Office

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[Kolla-ansible] is there a way to swicth from docker to podman
by wodel youchi 24 Apr '24

24 Apr '24

Hi, I am preparing to upgrade a platform from yoga to the latest version of kolla-ansible 2023.2 I am wondering if there is a way to switch from docker to podman while upgrading? Regards. <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> Virus-free.www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

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[ptg][openstack-ansible] OpenStack-Ansible PTG results for Dalmatian
by Dmitriy Rabotyagov 24 Apr '24

24 Apr '24

Hi everyone! Sorry for the late PTG report. But better late than never I guess :) This time we did not have a lot of discussion points, and mainly re-scoped not delivered topics from previous PTG, including: * Improvements to PKI role for integration with Hashi Vault and ability to handle encrypted keys with ansible-vault * ProxySQL implementation - it's long overdue, actually, but still seems beneficial * Incus support * Usage of deb822_repository module instead of apt_repository. This is going to be breaking change as does not assume backwards compatibility in a way of defining repositories when they're overridden (especially for deployments with limited connectivity) * Improving our documentation state. We are still lagging behind adopting all our docs to OVN driver being a default. We also need to document a way of defining pretty endpoint names (serving all endpoints from port 80/443 rather then unique ports per service). With that being said, we also reviewed what is feasible to finish for Caracal release. We still need to get some progress on following topics in upcoming weeks: * ovn-bgp-agent support: https://review.opendev.org/c/openstack/openstack-ansible-os_neutron/+/909780 ** We have acquired the FRRouting role from Vexxhost (thanks for that!), but some changes to it are needed, ie EL9 support: https://review.opendev.org/q/project:openstack/ansible-role-frrouting+statu… * OVN driver support for Octavia: https://review.opendev.org/c/openstack/openstack-ansible-os_octavia/+/868462 ** I need to look at testing of that driver and add corresponsive job to the role * Dealing with inactive projects and prevent new deployments during Caracal release: sahara, murano, senlin * Finalize Skyline support: https://review.opendev.org/q/topic:%22osa/skyline%22 * Enable Quorum Queues by default along with other oslo.messaging improvements: https://review.opendev.org/q/topic:%22osa/messaging_improvements%22 So thanks everyone for participation and let's keep the ball rolling!

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[magnum] k8s cluster deploy stuck timeout
by Jaime Ibar 24 Apr '24

24 Apr '24

Hi all, I have installed magnum with no issues. After the installation, I tried to deploy a kubernetes cluster but after some time, the creation process times out and this always happens during the kube_cluster_deploy stage. I'm running 17.0.0 (Bobcat) so I tried with core os fedora-coreos-38.20230806.3.0 and kube_tag v1.26.8-rancher1 as stated in the documentation but no joy. I also tried different combinations of fedora core and kube_tag but same, no joy. I can ssh into the vms, podman exec into the containers but if I run kubectl version I get the following error The connection to the server localhost:8080 was refused - did you specify the right host or port? and tailing /var/log/heat-config/heat-config-script/ I get the following message ++ kubectl get --raw=/healthz The connection to the server localhost:8080 was refused - did you specify the right host or port? Any idea what might be the problem? TIA Jaime -- salu2 Jaime

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[magnum] Weekly meeting cancelled
by Jake Yip 24 Apr '24

24 Apr '24

Hi all, I'll need to cancel this week's meeting as I am unwell. - Jake

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[nova][ptg] 2024.2 Dalmatian PTG summary
by Sylvain Bauza 24 Apr '24

24 Apr '24

Hey folks, Sorry for being a bit late to provide this summary, but let me do it :-) So, we had in between 10 to 20 contributors during our 4 days. Wow, it was nice ! Thanks all of you that were there, and I was happy to see you even if it was the first time you were in. As a reminder, please don't open the main etherpad link [1] if you use a Web browser with an automatic translation modification feature. If you do it, then it would internally translate all the phrases directly in the etherpad as if you were directly modifying the etherpad by yourself. Please also make sure you don't accidentally remove or modify lines. In order to prevent any misusage, please rather look at this read-only etherpad link https://etherpad.opendev.org/p/r.3d37f484b24bb0415983f345582508f7 Now, let me explain the summary now (first, take a coffee if you want). First, we only had one cross-project meeting, with the Neutron team. I won't provide the summary for this as it was only a neutron discussion (this was about multiple port bindings support with only some neutron backends). Please rather look at the neutron etherpad or wait for its summary. ### Caracal retrospective and Dalmatian planning ### 19 blueprints were approved, 10 of them landed. We also had more contributors (38) than last cycle. We now unfortunately have >60 untriaged bugs so we discussed that. We agreed then that rather than triaging the bugs every week, we should propose a bug triage day on a periodic time and welcome any person who would want to help about it. We will also ask reporters for each bug report that is older than 5 years if they can try to reproduce the issue with a newer/supported release. We also discussed how to make sure we could review the feature implementations. Eventually, we agreed on the fact we should ask spec owners to discuss with us for having feature liaisons for their specs so we could have something like 'subteams' per feature implementation. For that, I'll explain it separately by a new email in the next few weeks. About the proposed Dalmatian planning, we'll have two spec review days (R-20 and R-13) but also a spec approval freeze day (a deadline, if your prefer) by R-11 (mid-July). We'll also have an implementation review day by R-10. ### Enhancing support for running nova services in k8s ### Gibi agreed on providing a backlog spec for explaining what we should modify in Nova. For graceful shutdown support, gibi will also create another spec to make oslo.messaging only supporting some RPC topics usage. ### Unified limits default behaviour with no registered limits ### We discussed some specific case you have today with unified limits : you need to register all the limits for all the resource classes you use for flavors, because if not, you wouldn't have quotas for them. We then agreed on the fact that all the 'core' resource classes (meaning the non-custom ones) should be registered. melwitt will provide a document for explaining it. For custom resource classes, we agreed on providing a relax mode (in the nova configuration) for accepting unregistered limits only for custom resource classes. That option would also have a strict mode for asking to register even the custom RCs. ### Missing instance action events ### We have a bug report about missing instance action events in our API [2]. We agreed on fixing this without requiring a new API microversion. For each of the missing events, ratailor will provide individual bugfixes and will also try to assert the events in Tempest scenarios. ### Ephemeral encryption feature ### As we started to merge some changes for this feature on Caracal, we also found some concerns that needed to be discussed during this PTG. Melwitt will provide a new spec for adding a new API microversion that will add new request parameters for snapshotting an instance. If an instance that has an encrypted disk needs to be rescued, either the rescue disk will also be encrypted or it will use the same key as the rescue image. Resize won't yet be accepted but melwitt will try to look how it could be unencrypted. Eventually, we also discussed the fact that compute services should check when moving an instance whether the target supports the encryption options. ### Nova Metadata optimisation ### In case the metadata API is called quite frequently, there is some read amplification. In order to fix this, fwiesel will create a blueprint for lazy loading some returned parameters and telling which metadata paths are the most called. For the moment, we won't do any cache invalidation feature as we first need to understand whether the lazy-loading helps. ### Extending memory encryption support ### For the moment, Nova only supports AMD-SEV for encrypting the instance memory. We discussed about two other hardware supports : AMD-SEV-ES and SGX. For AMD SEV-ES (new AMD SEV generation), we agreed on documenting some not configuration support by BIOS, modifying the inventories by using nested resource providers with the same resource class and maybe needing some reshape. Takashi will work on it for this cycle (live-migration wouldn't be done by this cycle) For SGX, we said we need a new blueprint and a spec. We are OK to create a new nested resource provider for the resource class, but we would like to know the current move operation limitations. ### Stateless firmware support ### Even if the libvirt driver recreates a new firmware when we're moving/resizing an instance, we discussed whether we should support a specific stateless firmware. We agreed on accepting it, so takashi will work on it, but will also fix the related bug reports [3]. ### Automatically detecting vTPM support ### Long story short, we accepted [4] as a specless blueprint. takashi will work on the implementation this cycle. ### vTPM migrations ### Even if Nova supports vTPM related instances, we don't support yet rebuild, rescue, shelve, live migration and evacuation. We agreed on fixing this cycle live-migration/evacuate as a priority by persisting the vTPM memory somewhere. We need to find a contributor that said, hopefully those weeks. A bit related, we discussed some live-migration other topic that was related to our SSH usage later, and we said in that topic that some kind of small object-store in nova (or elsewhere) could be useful for transferring instance-related local datablocks (like console logs, NVRAM or config drives), including vTPM memory state. ### Live migration options difference ### So, you probably know that we have a lot of live migration configuration options now, as least the fact tht the live_migration_uri option was deprecated in favor of live_migration_scheme and live_migration_inbound_addr. Unfortunately, those new options miss some way to provide some elements like user, port, path and query string. Eventually, we agreed on deprecating this cycle live_migration_scheme while *un*deprecating live_migration_uri. That won't mean that we'll remove live_migration_scheme quickly, at least until 2025.2 F (based on the SLURP policy) so distros shouldn't be afraid. ### Allow Userdata to be updated ### Well, that one is a long overdue feature request. crohmann kindly updated the spec [5] for this cycle based on our feedback from the last reviews, we agreed on reviewing that spec but a quick glance showed up it was going into the right direction. ### Clean up old compute service versions ### That one has been a long discussed topic, even if just tech debt related. The case is that we have old cruft of upgrade checks in our code that we could remove, but we were afraid of removing some unsupported yet useful 'upgrade enveloppe' between very old computes and new controllers. After lots of back and forths, we eventually agreed on having some kind of upcall check from compute to conductor that would signal this compute that it's too old and needs to self-disable, yet having some 'escape valve' (straighly quoting) in case it incorrectly disables things. Dansmith agreed to start scheming it. ### OpenAPI-compatible API reference documentation ### Stephenfin instructed us on the cross-project effort aiming to have project's api-refs automatically generated thru some tooling. In order to achieve that, there are a few gaps in our current code that need to be fixed, mostly about adding some response schema validation. stephenfin already proposed a spec [6]. We agreed on reviewing it. We also wanted the implementation to be iterative per API resource, to leave to the deprecated APIs untouched and to keep the existing api-ref until the new documentation is on par. Stephefin agreed to update his spec based on that feedback. ### SPICE-direct console support ### A new nova spec [7] was created this cycle by mikal in order to provide some hypervisor details for some external tool that could then pass a SPICE-direct console from a specific instance to some user. We discussed this feature and we said that the usecase was reasonable. That said, we had some concerns about the technical modifications but we'll discuss them in the spec review. ### Remote consoles API ### When an user asks Nova to create a new remote console for an instance, the user doesn't tell which kind of console they want to get, only the operator can set which console kind to use per compute. We agreed on providing a new API microversion for helping users which kind of console they want (html5 or tcp-direct for example) by a new request parameter. Fwiesel accepted to create a new spec for it this cycle. ### Resurrected computes should doublecheck the RPC messages they get ### Sorry for the terrible section name above, I tried to make it short. Basically, when a compute service disappears for some time and then returns, it can process any RPC request which was in queue. If some instance was evacuated in between, then this compute will dumbly try to process what was called earlier (like a move operation). We agreed on the fact this is a bug that needs to be fixed by adding some conditional against any move operation RPC targeted method, we don't know yet who could work on it, maybe tobias-urbin since he reported it. ### How can we get rid of eventlet in Nova ? #### I won't go into the details on what eventlet is but please consider that all nova services are hardly dependent on that python library for concurrency reasons, mostly the compute service (besides the API and other services for the workers usage). Sean Mooney proposed us a plan for using direct python threading (instead of asyncio) in order to replace our workers model and to create specific distinct threadpools for compute-related operations. We agreed on that approach so we'll let sean to create a blueprint (which will be approved as specless) and rebase his current series so we could review it. ### EOF ### That's a wrap now, my fingers are now quite bloody (they're not used to write that much). Sorry for the long summary, I just hope your coffee (or tea) was good. -Sylvain (who could have written his last PTG summary email if planets align) [1] https://etherpad.opendev.org/p/nova-dalmatian-pt g (please remove the empty char between 'pt' and 'g') [2] https://bugs.launchpad.net/nova/+bug/2058928 [3] https://bugs.launchpad.net/nova/+bug/1785123 and https://bugs.launchpad.net/nova/+bug/1633447 [4] https://blueprints.launchpad.net/nova/+spec/libvirt-detect-vtpm-support [5] https://review.opendev.org/c/openstack/nova-specs/+/863884 [6] https://review.opendev.org/c/openstack/nova-specs/+/909448 [7] https://review.opendev.org/c/openstack/nova-specs/+/915190

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[kolla] opensearch build issue
by Andrej Moravčík 23 Apr '24

23 Apr '24

Hello, I am having trouble building opensearch image based on Ubuntu distro using Kolla 16.3.1 / OpenStack 2023.1. Has anyone run into the same problem? Any help appreciated. INFO:kolla.common.utils.opensearch:Preparing to unpack .../opensearch_2.13.0_amd64.deb ... INFO:kolla.common.utils.opensearch:Running OpenSearch Pre-Installation Script INFO:kolla.common.utils.opensearch:Unpacking opensearch (2.13.0) ... INFO:kolla.common.utils.opensearch:Setting up opensearch (2.13.0) ... INFO:kolla.common.utils.opensearch:Running OpenSearch Post-Installation Script INFO:kolla.common.utils.opensearch:ERROR: Something went wrong during demo configuration installation. Please see the logs in /var/log/opensearch/install_demo_configuration.log INFO:kolla.common.utils.opensearch:dpkg: error processing package opensearch (--configure): INFO:kolla.common.utils.opensearch: installed opensearch package post-installation script subprocess returned error exit status 1 INFO:kolla.common.utils.opensearch:Processing triggers for libc-bin (2.35-0ubuntu3.6) ... INFO:kolla.common.utils.opensearch:Errors were encountered while processing: INFO:kolla.common.utils.opensearch: opensearch INFO:kolla.common.utils.opensearch:E INFO:kolla.common.utils.opensearch:: INFO:kolla.common.utils.opensearch:Sub-process /usr/bin/dpkg returned an error code (1) INFO:kolla.common.utils.opensearch: INFO:kolla.common.utils.opensearch: INFO:kolla.common.utils.opensearch:Removing intermediate container 72435c692eff ERROR:kolla.common.utils.opensearch:Error'd with the following message ERROR:kolla.common.utils.opensearch:The command '/bin/sh -c apt-get --error-on=any update && apt-get -y install --no-install-recommends opensearch && apt-get clean && rm -rf /var/lib/apt/lists/*' returned a non-zero code: 100 Regards — Andrej Moravčík ________________________________ Táto správa a jej prílohy sú dôverné. Prosím, narábajte s týmito informáciami ako s dôvernými a nezverejňujte, nekopírujte ani neposielajte tieto informácie bez predchádzajúceho súhlasu spoločnosti Aliter Technologies, a.s. Ak nie ste adresátom indikovaným v záhlaví tejto správy alebo želaný príjemca, upovedomte prosím spoločnosť Aliter Technologies, a.s. odpoveďou na tento e-mail a pôvodnú správu vymažte zo svojho systému. Aliter Technologies - registrovaná ochranná známka pre EU, USA This message and any attachments are confidential. Please treat the information as confidential, and do not disclose, copy or deliver this message to anyone without Aliter Technologies' approval. If you are not the addressee indicated in this message or an intended recipient please notify Aliter Technologies a.s. by return e-mail and delete the message from your system. Aliter Technologies - Registered in WIPO & U.S. Patent and Trademark Office

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