348 Commits

Author SHA1 Message Date
Daan Hoogland
0c7d47138d Updating pom.xml version numbers for release 4.19.3.0
Signed-off-by: Daan Hoogland <daan@onecht.net>
2025-05-30 09:08:58 +02:00
Fabricio Duarte
9d263cd71b
Network Usage event model adjustments (#10755) 2025-04-26 17:35:28 +02:00
Daan Hoogland
4a3686297d Updating pom.xml version numbers for release 4.19.3.0-SNAPSHOT
Signed-off-by: Daan Hoogland <daan@onecht.net>
2025-02-25 10:43:11 +01:00
Daan Hoogland
4e321d4356 Updating pom.xml version numbers for release 4.19.2.0
Signed-off-by: Daan Hoogland <daan@onecht.net>
2025-02-20 09:32:07 +01:00
Suresh Kumar Anaparti
3faf7cd2f1
Updating pom.xml version numbers for release 4.19.2.0-SNAPSHOT
Signed-off-by: Suresh Kumar Anaparti <suresh.anaparti@shapeblue.com>
2024-07-19 10:29:26 +05:30
Suresh Kumar Anaparti
9f4c895974
Updating pom.xml version numbers for release 4.19.1.0
Signed-off-by: Suresh Kumar Anaparti <suresh.anaparti@shapeblue.com>
2024-07-15 17:19:29 +05:30
Abhisar Sinha
063dc60114
Change storage pool scope from Cluster to Zone and vise versa (#8875)
* New feature: Change storage pool scope

* Added checks for Ceph/RBD

* Update op_host_capacity table on primary storage scope change

* Storage pool scope change integration test

* pull 8875 : Addressed review comments

* Pull 8875: remove storage checks, AbstractPrimayStorageLifeCycleImpl class

* Pull 8875: Fixed integration test failure

* Pull 8875: Review comments

* Pull 8875: review comments + broke changeStoragePoolScope into smaller functions

* Added UT for changeStoragePoolScope

* Rename AbstractPrimaryDataStoreLifeCycleImpl to BasePrimaryDataStoreLifeCycleImpl

* Pull 8875: Dao review comments

* Pull 8875: Rename changeStoragePoolScope.vue to ChangeStoragePoolScope.vue

* Pull 8875: Created a new smokes test file + A single warning msg in ui

* Pull 8875: Added cleanup in test_primary_storage_scope.py

* Pull 8875: Type in en.json

* Pull 8875: cleanup array in test_primary_storage_scope.py

* Pull:8875 Removing extra whitespace at eof of StorageManagerImplTest

* Pull 8875: Added UT for PrimaryDataStoreHelper and BasePrimaryDataStoreLifeCycleImpl

* Pull 8875: Added license header

* Pull 8875: Fixed sql query for vmstates

* Pull 8875: Changed icon plus info on disabled mode in apidoc

* Pull 8875: Change scope should not work for local storage

* Pull 8875: Change scope completion event

* Pull 8875: Added api findAffectedVmsForStorageScopeChange

* Pull 8875: Added UT for findAffectedVmsForStorageScopeChange and removed listByPoolIdVMStatesNotInCluster

* Pull 8875: Review comments + Vm name in response

* Pull 8875: listByVmsNotInClusterUsingPool was returning duplicate VM entries because of multiple volumes in the VM satisfying the criteria

* Pull 8875: fixed listAffectedVmsForStorageScopeChange UT

* listAffectedVmsForStorageScopeChange should work if the pool is not disabled

* Fix listAffectedVmsForStorageScopeChangeTest UT

* Pull 8875: add volume.removed not null check in VmsNotInClusterUsingPool query

* Pull 8875: minor refactoring in changeStoragePoolScopeToCluster

* Update server/src/main/java/com/cloud/storage/StorageManagerImpl.java

* fix eof

* changeStoragePoolScopeToZone should connect pool to all Up hosts

Co-authored-by: Suresh Kumar Anaparti <sureshkumar.anaparti@gmail.com>
2024-06-29 10:03:34 +05:30
Suresh Kumar Anaparti
2ca1b474bd
PowerFlex/ScaleIO SDC client connection improvements (#9268)
* Mitigation for non-scalable Powerflex/ScaleIO clients
- Added ScaleIOSDCManager to manage SDC connections, checks clients limit, prepare and unprepare SDC on the hosts.
- Added commands for prepare and unprepare storage clients to prepare/start and stop SDC service respectively on the hosts.
- Introduced config 'storage.pool.connected.clients.limit' at storage level for client limits, currently support for Powerflex only.

* tests issue fixed

* refactor / improvements

* lock with powerflex systemid while checking connections limit

* updated powerflex systemid lock to hold till sdc preparation

* Added custom stats support for storage pool, through listStoragePools API

* code improvements, and unit tests

* unit tests fixes

* Update config 'storage.pool.connected.clients.limit' to dynamic, and some improvements

* Stop SDC on host after migration if no volumes mapped to host

* Wait for SDC to connect after scini service start, and some log improvements

* Do not throw exception (log it) when SDC is not connected while revoking access for the powerflex volume

* some log improvements
2024-06-29 10:01:50 +05:30
Vishesh
bcbf152a05
Merge branch '4.18' into 4.19 2024-06-28 20:14:21 +05:30
Abhisar Sinha
644f3a3f48
Add, Delete Storage Pool commands should be able execute on a host in maintenance (#9301)
* Restart agent when host comes out of maintenance

* Don't send CreateStoragePoolCommand to hosts in maintenance mode

* CreateStoragePoolCommand can run when host in maintenance. Reverted the change to restart agent when host was already up and in maintenance

* Reverted changes done to ResourceManagerImplTest
2024-06-28 18:18:08 +05:30
Suresh Kumar Anaparti
46f672563e
Improve migration of external VMware VMs into KVM cluster (#8815)
* Create/Export OVA file of the VM on external vCenter host, to temporary conversion location (NFS)

* Fixed ova issue on untar/extract ovf from ova file
"tar -xf" cmd on ova fails with "ovf: Not found in archive" while extracting ovf file

* Updated VMware to KVM instance migration using OVA

* Refactoring and cleanup

* test fixes

* Consider zone wide pools in the destination cluster for instance conversion

* Remove local storage pool support as temporary conversion location
- OVA export not possible as the pool is not accessible outside host, NFS pools are supported.

* cleanup unused code

* some improvements, and refactoring

* import nic unit tests

* vmware guru unit tests

* Separate clone VM and create template file for VMware migration
- Export OVA (of the cloned VM) to the conversion location takes time.
- Do any validations with cloned VM before creating the template (and fail early).
- Updated unit tests.

* Check conversion support on host before clone vm / create template on vmware (and fail early)

* minor code improvements

* Auto select the host with instance conversion capability

* Skip instance conversion supported response param for non-KVM hosts

* Show supported conversion hosts in the UI

* Skip persistence map update if network doesn't exist

* Added support to export OVA from KVM host, through ovftool (when installed in KVM host)

* Updated importvm api param 'usemsforovaexport' to 'forcemstodownloadvmfiles', to be generic

* Updated hardcoded UI messages with message labels

* Updated UI to support importvm api param - forcemstodownloadvmfiles

* Improved instance conversion support checks on ubuntu hosts, and for windows guest vms

* Use OVF template (VM disks and spec files) for instance conversion from VMware, instead of OVA file
 - this would further increase the migration performance (as it reduces the time for OVA preparation / archiving of the VM files into a single file)

* OVF export tool parallel threads code improvements

* Updated 'convert.vmware.instance.to.kvm.timeout' config default value to 3 hrs

* Config values check & code improvements

* Updated import log, with time taken and vm details

* Support for parallel downloads of VMware VM disk files while exporting OVF from MS, and other changes below.
- Skip clone for powered off VMs
- Fixes to support standalone host (with its default datacenter)
- Some code improvements

* rebase fixes

* rebase fixes

* minor improvement

* code improvements - threads configuration, and api parameter changes to import vm files

* typo fix in error msg
2024-06-27 21:14:13 +05:30
Abhisar Sinha
4eb43651e2
Ability to specify NFS mount options while adding a primary storage and modify them on a pre-existing primary storage (#8947)
* Ability to specify NFS mount options while adding a primary storage and modify it later

* Pull 8947: Rename all occurrence of nfsopt to nfsMountOpt and added nfsMountOpts to ApiConstants

* Pull 8947: Refactor code - move into separate methods

* Pull 8947: CollectionsUtils.isNotEmpty and switch statement in LibvirtStoragePoolDef.java

* Pull 8947: UI - cancel maintainenace will remount the storage pool and apply the options

* Pull 8947: UI - moved edit NFS mount options to edit Primary Storage form

* Pull 8947: UI - moved 'NFS Mount Options' to below 'Type' in dataview

* Pull 8947: Fixed message in AddPrimaryStorage.vue

* Pull 8947: Convert _nfsmountOpts to Set in libvirtStoragePoolDef

* Pull 8947: Throw exception and log error if mount fails due to incorrect mount option

* Pull 8947: Added UT and moved integration test to component/maint

* Pull 8947: Review comments

* Pull 8947: Removed password from integration test

* Pull 8947: move details allocation to inside the if loop in getStoragePoolNFSMountOpts

* Pull 8947: Fixed a bug in AddPrimaryStorage.vue

* Pull 8947: Pool should remain in maintenance mode if mount fails

* Pull 8947: Removed password from integration test

* Pull 8947: Added UT

* Pull 8875: Fixed a bug in CloudStackPrimaryDataStoreLifeCycleImplTest

* Pull 8875: Fixed a bug in LibvirtStoragePoolDefTest

* Pull 8947: minor code restructuring

* Pull 8947 : added some ut for coverage

* Fix LibvirtStorageAdapterTest UT
2024-06-25 23:45:35 +05:30
Vishesh
351de5fabd
engine/orchestration: Update overcommit ratio during live VM migration (#9178)
During live migration of a VM from between hosts having different cgroup versions (cgroupv2 & cgroup), overcommit ratio is ignored.

This PR fixes the above issue.
2024-06-24 20:45:31 +05:30
Suresh Kumar Anaparti
8b02624e61
User data content size validation, and related code improvements (#8418)
Co-authored-by: João Jandre <48719461+JoaoJandre@users.noreply.github.com>
2024-06-18 20:07:13 +02:00
Daan Hoogland
050ee44137 Merge branch '4.18' into 4.19 2024-06-18 16:05:45 +02:00
dahn
7c5b7ca077
Extra parameter for UpdateImageStore (#8941)
* Extra parameter for UpdateImageStore

* add name parameter

* ui

* cleanup

* update DB from storage stats results
2024-06-18 12:31:17 +05:30
Vishesh
6b4955affe
Fix message publish in transaction (#8980)
* Fix message publish in transaction

* Resolve comments
2024-05-07 13:27:31 +05:30
João Jandre
8a101fbbc1 Updating pom.xml version numbers for release 4.18.3.0-SNAPSHOT
Signed-off-by: João Jandre <48719461+JoaoJandre@users.noreply.github.com>
2024-04-17 11:11:57 -03:00
João Jandre
154566f914 Updating pom.xml version numbers for release 4.18.2.0
Signed-off-by: João Jandre <48719461+JoaoJandre@users.noreply.github.com>
2024-04-12 08:25:04 -03:00
Vishesh
c24c1a5c00
Fix VM import & VM delete with custom offering (#8813) 2024-04-10 11:29:29 +02:00
Abhishek Kumar
ff3e9bd821 engine-storage: control download redirection
Add a global setting to control whether redirection is allowed while
downloading templates and volumes

Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>
2024-04-04 14:11:05 +05:30
Wei Zhou
939d0b9011 engine-storage: control download redirection
Add a global setting to control whether redirection is allowed while
downloading templates and volumes

core: some changes on SimpleHttpMultiFileDownloader
similar as HttpTemplateDownloader

Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>
(cherry picked from commit b1642bc3bf58ccde9f56f632b5a9fe46a3eb5356)
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
2024-04-04 11:19:20 +05:30
Wei Zhou
fc3c625beb server: fix security issues caused by extraconfig on KVM
- Move allow.additional.vm.configuration.list.kvm from Global to Account setting
- Disallow VM details start with "extraconfig" when deploy VMs
- Skip changes on VM details start with "extraconfig" when update VM settings
- Allow only extraconfig for DPDK in service offering details
- Check if extraconfig values in vm details are supported when start VMs
- Check if extraconfig values in service offering details are supported when start VMs
- Disallow add/edit/update VM setting for extraconfig on UI

(cherry picked from commit e6e4fe16fb1ee428c3664b6b57384514e5a9252e)
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
(cherry picked from commit 7aea9db1c8d8ef1febb723913dc01c3040641425)
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
2024-04-04 11:19:08 +05:30
Wei Zhou
72b2eb0087 server: fix security issues caused by extraconfig on KVM
- Move allow.additional.vm.configuration.list.kvm from Global to Account setting
- Disallow VM details start with "extraconfig" when deploy VMs
- Skip changes on VM details start with "extraconfig" when update VM settings
- Allow only extraconfig for DPDK in service offering details
- Check if extraconfig values in vm details are supported when start VMs
- Check if extraconfig values in service offering details are supported when start VMs
- Disallow add/edit/update VM setting for extraconfig on UI

(cherry picked from commit e6e4fe16fb1ee428c3664b6b57384514e5a9252e)
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
2024-04-04 11:00:10 +05:30
Harikrishna
c462be1412
New API "checkVolume" to check and repair any leaks or issues reported by qemu-img check (#8577)
* Introduced a new API checkVolumeAndRepair that allows users or admins to check and repair if any leaks observed.
Currently this is supported only for KVM

* some fixes

* Added unit tests

* addressed review comments

* add repair volume while granting access

* Changed repair parameter to accept both leaks/all

* Introduced new global setting volume.check.and.repair.before.use to do volume check and repair before VM start or volume attach operations

* Added volume check and repair changes only during VM start and volume attach operations

* Refactored the names to look similar across the code

* Some code fixes

* remove unused code

* Renamed repair values

* Fixed unit tests

* changed version

* Address review comments

* Code refactored

* used volume name in logs

* Changed the API to Async and the setting scope to storage pool

* Fixed exit value handling with check volume command

* Fixed storage scope to the setting

* Fix volume format issues

* Refactored the log messages

* Fix formatting
2024-02-29 14:41:49 +05:30
Suresh Kumar Anaparti
f702f7f57c
Remove sensitive params (VmPassword, etc) from VMWork log (#8553) 2024-02-05 13:26:18 +05:30
Abhishek Kumar
a7b97ff3b0 Updating pom.xml version numbers for release 4.19.1.0-SNAPSHOT
Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>
2024-02-02 18:06:04 +05:30
Abhishek Kumar
2746225b99 Updating pom.xml version numbers for release 4.19.0.0
Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>
2024-01-29 10:21:52 +05:30
Vishesh
fedcf66de0
Externalise a few timeouts & fix timeout for hostSupportsUefi in libvirt ready command wrapper (#8547)
This PR fixes bug introduced in #8502. Timeout for script execution was set to 60 ms instead of 60s which resulted in host not getting UEFI enabled. This is a blocker for 4.19 release.

We do this by introducing a new agent parameter `agent.script.timeout` (default - 60 seconds) to use as a timeout for the script checking host's UEFI status.

We also externalize the timeout for the ReadyCommand by introducing a new global setting `ready.command.wait` (default - 60 seconds).

For ModifyStoragePoolCommand, we don't externalize the timeout to avoid confusion for the user. Since, the required timeout can vary depending on the provider in use and we are only setting the wait for default host listener for now. Instead, we reuse the global `wait` setting by dividing it by `5` making the default value of 6 minutes (1800/5 = 360s) for ModifyStoragePoolCommand.

Note: the actual time, the MS waits is twice the wait set for a Command. Check reference code below.
19250403e6/engine/orchestration/src/main/java/com/cloud/agent/manager/AgentAttache.java (L406-L442)
2024-01-27 23:36:13 +05:30
Nicolas Vazquez
371ad9f55b
New Feature: Import VMware VMs into KVM (#7881)
This PR adds the capability in CloudStack to convert VMware Instances disk(s) to KVM using virt-v2v and import them as CloudStack instances. It enables CloudStack operators to import VMware instances from vSphere into a KVM cluster managed by CloudStack. vSphere/VMware setup might be managed by CloudStack or be a standalone setup.

    CloudStack will let the administrator select a VM from an existing VMware vCenter in the CloudStack environment or external vCenter requesting vCenter IP, Datacenter name and credentials.
    The migrated VM will be imported as a KVM instance
    The migration is done through virt-v2v: https://access.redhat.com/articles/1351473, https://www.ovirt.org/develop/release-management/features/virt/virt-v2v-integration.html
    The migration process timeout can be set by the setting convert.instance.process.timeout
    Before attempting the virt-v2v migration, CloudStack will create a clone of the source VM on VMware. The clone VM will be removed after the registration process finishes.
    CloudStack will delegate the migration action to a KVM host and the host will attempt to migrate the VM invoking virt-v2v. In case the guest OS is not supported then CloudStack will handle the error operation as a failure
    The migration process using virt-v2v may not be a fast process
    CloudStack will not perform any check about the guest OS compatibility for the virt-v2v library as indicated on: https://access.redhat.com/articles/1351473.
2023-12-07 12:59:56 +05:30
Bryan Lima
b0910fc61d
Add dynamic secondary storage selection (#7659) 2023-12-04 09:52:32 +01:00
Bryan Lima
1f29f6f040
Public IP quarantine feature (#7378) 2023-11-15 10:29:22 +01:00
slavkap
2bb182c3e1
KVM Host HA enhancement for StorPool storage (#8045)
Extending the current functionality of KVM Host HA for the StorPool storage plugin and the option for easy integration for the rest of the storage plugins to support Host HA

This extension works like the current NFS storage implementation. It allows it to be used simultaneously with NFS and StorPool storage or only with StorPool primary storage.

If it is used with different primary storages like NFS and StorPool, and one of the health checks fails for storage, there is an option to report the failure to the management with the global config kvm.ha.fence.on.storage.heartbeat.failure. By default this option is disabled when enabled the Host HA service will continue with the checks on the host and eventually will fence the host
2023-11-04 12:35:37 +05:30
Wei Zhou
bd52fa8a12
New feature: VNF templates and appliances integration (#8022) 2023-10-27 10:23:00 +02:00
Abhishek Kumar
543c54c718
api,server,ui: snapshot copy, multi-zone replica (#7873)
This PR adds new functionality to copy snapshots across zones and take snapshots for multiple zones.

Copy functionality is similar to template copy. The source zone acts as the web server from where the destination zone(s) can download the snapshot files. For this purpose, a new API - `copySnapshot` has been added. The response for copySnapshot will be returning zone and download details from the first destination zone of the request. This behaviour is similar to the `copyTemplate` API.

In a similar manner, multiple zones can be selected while taking the snapshots or creating snapshot policies. For this snapshot will be taken in the base zone(in which volume is present) and then copied to the additional zones. A new parameter - `zoneids` has been added to `createSnapshot` and `createSnapshotPolicy` APIs.

As snapshots can be present on multiple zones (secondary stores), a new parameter `zoneid` has been added to delete the snapshot copy on a specific zone.

`listSnapshots` API has been updated to allow listing snapshot entries for different zones/datastores. New parameters - `showUnique`, `locationType` have been added.

Events generated during snapshot operations will now be linked to the snapshot itself rather than the volume of the snapshot.

`listSnapshotPolicies` and `createSnapshotPolicy` APIs will return zone details of the zones in which backup will be scheduled for the policy.

----
New API added
`copySnapshot`

Request and response params updated for APIs
```
- listSnapshots
- deleteSnapshot
- createTemplate
- listZones
- listSnapshotPolicies
- createSnapshotPolicy
```
UI updated for
- Snapshot detail view
- Create snapshot form
- Create snapshot policy form
- Create volume (from snapshot) form
- Create template (from snapshot) form

Doc PR: https://github.com/apache/cloudstack-documentation/pull/344
PR: https://github.com/apache/cloudstack/pull/7873
2023-10-23 09:01:58 +02:00
John Bampton
4eb110af73
Remove unneeded duplicate words (#7850) 2023-09-18 13:16:33 +02:00
Wei Zhou
246bb24b0f Updating pom.xml version numbers for release 4.18.2.0-SNAPSHOT
Signed-off-by: Wei Zhou <weizhou@apache.org>
2023-09-12 17:26:53 +02:00
Wei Zhou
4bdff06acd Updating pom.xml version numbers for release 4.18.1.0
Signed-off-by: Wei Zhou <weizhou@apache.org>
2023-09-07 08:50:50 +02:00
Wei Zhou
3b05797344 Merge remote-tracking branch 'origin/4.18' 2023-08-24 18:32:56 +02:00
Wei Zhou
3c38ed7a65
server: allow user to list available IPs on shared networks (#7898)
This fixes #7817
2023-08-24 21:42:01 +05:30
Abhishek Kumar
729e6d1446
userdata: fix append scenarios (#7741)
Fixes case of appending userdata when both template and vm data are either shellscript or cloudconfig
Fixes error when appending gzip userdata
Fixes case when userdata manual text from VM is not getting decoded-encoded correctly.
Fixes case of appending multipart data when both template and vm data contain same format types.
Refactor - moved validateUserData method to UserDataManager class
Refactor userdata test to check resultant multipart userdata thoroughly

Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>
2023-07-19 15:18:53 +05:30
Vishesh
594c70dde0
Sync precommit config from main (#7732)
Co-authored-by: John Bampton <jbampton@users.noreply.github.com>
Co-authored-by: dahn <daan@onecht.net>
2023-07-07 11:18:16 +02:00
dahn
ae10263b3b
Possibility to choose the source NAT IP address on a isolated network or VPC (#6442)
Co-authored-by: NuxRo <nux@li.nux.ro>
Co-authored-by: Daniel Augusto Veronezi Salvador <38945620+GutoVeronezi@users.noreply.github.com>
2023-06-09 14:51:53 +02:00
Rohit Yadav
8a42ab9ce4 Merge remote-tracking branch 'origin/4.18' 2023-04-14 21:49:12 +05:30
Harikrishna
b774ee5d11
vmware: Datastore cluster synchronization should check if the child datastores are in UP state or not (#7385)
This fix ensures when datastore cluster in VMware is added as a primary storage pool in CloudStack then all the child datastores (which already exists in CS) should be in Up state.

For example:

1. Datastore Cluster DS has two child datastores A and B in vCenter. (B is already added as a storage pool in CloudStack)
2. Now try to add datastore cluster DS into CloudStack as a primary storage pool
3. CloudStack tries to add child datastores A and B in CloudStack, since B is already there in CloudStack, it will reuse the existing storagepool entry and will keep under parent Storage pool DS.

During Step 3 we are now checking if B is Up state or not.
2023-04-11 22:23:12 +05:30
Nicolas Vazquez
be66eb2a35
Auto Enable/Disable KVM hosts (#7170)
* Auto Enable Disable KVM hosts

* Improve health check result

* Fix corner cases

* Script path refactor

* Fix sonar cloud reports

* Fix last code smells

* Add marvin tests

* Fix new line on agent.properties to prevent host add failures

* Send alert on auto-enable-disable and add annotations when the setting is enabled

* Address reviews

* Add a reason for enabling or disabling a host when the automatic feature is enabled

* Fix comment on the marvin test description

* Fix for disabling the feature if the admin has manually updated the host resource state before any health check result
2023-04-04 17:03:37 +05:30
John Bampton
c2e17310d6
Add three more pre-commit checks (#7083)
Co-authored-by: dahn <daan@onecht.net>
2023-03-27 13:28:55 +02:00
Daan Hoogland
fb4f6a334d Updating pom.xml version numbers for release 4.19.0.0-SNAPSHOT
Signed-off-by: Daan Hoogland <daan@onecht.net>
2023-03-15 19:46:01 +01:00
Daan Hoogland
05cda2729f Updating pom.xml version numbers for release 4.18.1.0-SNAPSHOT
Signed-off-by: Daan Hoogland <daan@onecht.net>
2023-03-15 19:38:14 +01:00
Daan Hoogland
0574087284 Updating pom.xml version numbers for release 4.18.0.0
Signed-off-by: Daan Hoogland <daan@onecht.net>
2023-03-11 09:35:41 +01:00