Support for centos7 and centos8
Prior PR #2915 causes the cloudstack-usage daemon to not be able to find the mysql-ha jar file.
This happens because the /etc/default/cloudstack-usage file points to the old location for the mysql-ha jar file, and thus is unable to load it. This prior PR installs this jar into a more common area with other jar files, and thus is not really a desired location for the cloudstack-usage daemon to get it from, as it will cause cloudstack-usage to load other plugins that it doesn't need.
Fixes: #3974
This PR adds support for SUSE Leap 15.2+ as a KVM hypervisor and Management / Usage server on Cloudstack
Related docs link apache/cloudstack-documentation#224
Co-authored-by: Michael <35783820+mib1185@users.noreply.github.com>
Updates the DB properties (with strict / full property string search) having master and slave(s), with source and replica(s) respectively on upgrade (for inclusiveness).
Signed-off-by: Suresh Kumar Anaparti <suresh.anaparti@shapeblue.com>
This PR prepares marvin and tests for python3. it was part of #4479, until nose2 was decided to be abandoned from that PR.
Re-PR of #4543 and #3730 to enable cooperation
Co-authored-by: Daan Hoogland <dahn@onecht.net>
Co-authored-by: Gabriel Beims Bräscher <gabriel@apache.org>
Co-authored-by: Rohit Yadav <rohit.yadav@shapeblue.com>
This changes deb and rpm packaging to build the UI using npm and bundle
it in the `cloudstack-management` package and a new `cloudstack-ui`
package. The `cloudstack-ui` package will install the UI under
`/usr/share/cloudstack-ui/`. For both packages the config.json will not
be overridden on upgrade and hosted at /etc/cloudstack/management
for the cloudstack-mangement package, and at /etc/cloudstack/ui for the
cloudstack-ui package. The cloudstack-ui package is for advanced users
who only want the UI want to setup reverse proxy (separate hosting of UI).
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
The default GC algorithm G1 that is enabled by default with Java11
serves well on multiprocessor machines with large amount of memory where
GC is probablistic with low pauses, where response time is more
important than throughput and GC is kept shorter.
The CloudStack management server is largely a multi-threaded server
application that handles and orchestrates several network requests, and
has the default max. heap size of only 2G that can be considered a
small/medium application from a heap size perspective. Perhaps a more
aggresive GC algorithm such as ParallelGC as used in Java8 and before
(that is previous CloudStack releases) would serve better for throughput
and cause more aggresive GC.
Reference: https://docs.oracle.com/en/java/javase/11/gctuning/available-collectors.html#GUID-13943556-F521-4287-AAAA-AE5DE68777CD
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Since Java 9 the notation 'address=port' only applies to localhost.
For remote debug you have to explicitly specify that you want to listen
to all IP addresses (e.g. address=*8000)
* DB : Add support for MySQL 8
- Splits commands to create user and grant access on database, the old
statement is no longer supported by MySQL 8.x
- `NO_AUTO_CREATE_USER` is no longer supported by MySQL 8.x so remove
that from db.properties conn parameters
For mysql-server 8.x setup the following changes were added/tested to
make it work with CloudStack in /etc/mysql/mysql.conf.d/mysqld.cnf and
then restart the mysql-server process:
server_id = 1
sql-mode="STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION,ERROR_FOR_DIVISION_BY_ZERO,NO_ZERO_DATE,NO_ZERO_IN_DATE,NO_ENGINE_SUBSTITUTION"
innodb_rollback_on_timeout=1
innodb_lock_wait_timeout=600
max_connections=1000
log-bin=mysql-bin
binlog-format = 'ROW'
default-authentication-plugin=mysql_native_password
Notice the last line above, this is to reset the old password based
authentication used by MySQL 5.x.
Developers can set empty password as follows:
> sudo mysql -u root
ALTER USER 'root'@'localhost' IDENTIFIED BY '';
In libvirt repository, there are two related commits
2019-08-23 13:13 Daniel P. Berrangé ● rpm: don't enable socket activation in upgrade if --listen present
2019-08-22 14:52 Daniel P. Berrangé ● remote: forbid the --listen arg when systemd socket activation
In libvirt.spec.in
/bin/systemctl mask libvirtd.socket >/dev/null 2>&1 || :
/bin/systemctl mask libvirtd-ro.socket >/dev/null 2>&1 || :
/bin/systemctl mask libvirtd-admin.socket >/dev/null 2>&1 || :
/bin/systemctl mask libvirtd-tls.socket >/dev/null 2>&1 || :
/bin/systemctl mask libvirtd-tcp.socket >/dev/null 2>&1 || :
Co-authored-by: Wei Zhou <w.zhou@global.leaseweb.com>
Co-authored-by: Abhishek Kumar <abhishek.mrt22@gmail.com>
Co-authored-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Currently CloudStack is using logging frameworks as log4j and Java util logging, logging wrappers as slf4j and Apache common logging.
Here changes are to made it uniform, using only log4j framework.
Removed Java util logging, slf4j and Apache common logging.
This adds support for JDK11 in CloudStack 4.14+:
- Fixes code to build against JDK11
- Bump to Debian 9 systemvmtemplate with openjdk-11
- Fix Travis to run smoketests against openjdk-11
- Use maven provided jdk11 compatible mysql-connector-java
- Remove old agent init.d scripts
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
* Extract systemvm.iso using bsdtar if available.
Signed-off-by: Kai Takahashi <k-takahashi@creationline.com>
* New dependency for CentOS 7 and Debian: bsdtar
bsdtar can extract iso images without mounting.
Signed-off-by: Kai Takahashi <k-takahashi@creationline.com>
* Remove all 'mount' and 'umount' command call(s).
Signed-off-by: Kai Takahashi <k-takahashi@creationline.com>
Use iproute to get default network interface
This uses `ip route` than `route` without an explicit path (/bin, /sbin
etc.) to query the default network interface on the system.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
* kvm/security_group: Make Security Group Python 3 compatible
This script only runs on the KVM Hypervisors and these all support
Python 3.
As Python 2 is deprecated at the end of 2019 we need to fix these
scripts to work under Python 3.
CentOS 7, 8 and Ubuntu 16.04 and 18.04 all have Python 3 installed
by default.
Ubuntu 20.04 will no longer have Python 2 installed and therefor
this script needs to be modified to work with Python 3.
Signed-off-by: Wido den Hollander <wido@widodh.nl>
* Add dependency of python3 in packaging/centos7/cloud.spec
- Removes CentOS6/el6 packaging (voting thread reference https://markmail.org/message/u3ka4hwn2lzwiero)
- Add upgrade path from 4.13 to 4.14
- Enable live storage migration support for KVM by default as el6 is deprecated
- PRs using live storage migration
#2997 KVM VM live migration with ROOT volume on file storage type
#2983 KVM live storage migration intra cluster from NFS source and destination
#2298 CLOUDSTACK-9620: Enhancements for managed storage
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Using this tool on a hypervisor admins can query KVM Instances running
on that hypervisor if they have the Qemu Guest Agent installed.
All System VMs have this and they can be queried.
For example:
$ cloudstack-guest-tool i-2-25-VM
This will print some information about network and filesystem status.
root@hv-138-a05-23:~# ./cloudstack-guest-tool s-11-VM --command info|jq
{
"network": [
{
"ip-addresses": [
{
"prefix": 8,
"ip-address": "127.0.0.1",
"ip-address-type": "ipv4"
}
],
"name": "lo",
"hardware-address": "00:00:00:00:00:00"
},
{
"ip-addresses": [
{
"prefix": 16,
"ip-address": "169.254.242.169",
"ip-address-type": "ipv4"
}
],
"name": "eth0",
"hardware-address": "0e:00:a9:fe:f2:a9"
},
...
...
"filesystem": [
{
"mountpoint": "/var",
"disk": [
{
"bus": 0,
"bus-type": "virtio",
"target": 0,
"unit": 0,
"pci-controller": {
"slot": 7,
"bus": 0,
"domain": 0,
"function": 0
}
}
],
"type": "ext4",
"name": "vda6"
},
Signed-off-by: Wido den Hollander <wido@widodh.nl>
This may slow down CI and release, but ensures that unit tests always
run as part of the packaging build process.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
* systemd: fix services to allow TLS configurations via java.security.ciphers
This fixes the management server and systemd services to allow the
java.security.ciphers file to configure disabled TLS protocols and
algorithms. This also cleans up systemd service files for agent and
usage server.
This fixes#3140
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
* configure: fix travis failure due pycodestyle error
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
This cleanups management server default file, the `cloud.jks` is no
longer created by the management server but instead created in-memory
by the root CA plugin on management server startup.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Install CentOS 7 e.g. Build 1804 and Java build 1.8.0_181
if you inspect systemd in debug mode you will see some errors
1.
permission of the cloudstack-managment.service are not corretly set
2.
invalid classpath specified. it seems the string which is used will be divided... we now we use ${..} like the lines above ... confused
Install any additional plugin jars in the lib directory to be picked up
by the classpath builder, otherwise one has to manually add the jar
to /etc/default/cloudstack-management after installation. This fixes
the issue for `mysql-ha` plugin.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
The idea is to create a property in /etc/defaults/cloudstack-agent that
can be enabled/disabled (uncommented/commented) to control the enabling
of Java remote debug in CloudStack's JVM.
This makes the agent logrotate config to `noreplace` so on upgrade
any changes to the file are not lost.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Ubuntu 14.04 will go EOL in April 2019. With a new CloudStack
release close to that date we can drop support for this Ubuntu
version and the master branch of CloudStack.
Ubuntu 16.04 (Xenial) and 18.04 (Bionic) both have systemd and
more recent Java versions which make it easier to run the CloudStack
KVM Agent on them.
In addition libvirt and Qemu are more up to date with features
which allow VMs to run better.
Yet to be implemented features in KVM can also leverage the newer
version of Qemu and libvirt without the need of taking older
version of them into account.
Signed-off-by: Wido den Hollander <wido@widodh.nl>
This is to fix the regression added in #2433. In this fix
we're going to fail the build early if --use-timestamp is
provided and working directory is *not* clean. And also
fail the build if something in the script has returned
non-zero value.
* packaging: use libuuid x86_64 package for cloudstack-common
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
* 64 bit links is packaged
* post scan filter to exclude libuuid.so.1
* Revert "packaging: use libuuid x86_64 package for cloudstack-common"
This reverts commit b3fb8957fe.
* post scan filter to exclude libuuid.so.1 (centos63)
* revert removal of 32 bit support for vhd-util libs
This introduces a new global setting `vm.configdrive.primarypool.enabled` to toggle creation/hosting of config drive iso files on primary storage, the default will be false causing them to be hosted on secondary storage. The current support is limited from hypervisor resource side and in current implementation limited to `KVM` only. The next big change is that config drive is created at a temporary location by management server and shipped to either KVM or SSVM agent via cmd-answer pattern, the data of which is not logged in logs. This saves us from adding genisoimage dependency on cloudstack-agent pkg.
The APIs to reset ssh public key, password and user-data (via update VM API) requires that VM should be shutdown. Therefore, in the refactoring I removed the case of updation of existing ISO. If there are objections I'll re-put the strategy to detach+attach new config iso as a way of updation. In the refactored implementation, the folder name is changed to lower-cased configdrive. And during VM start, migration or shutdown/removal if primary storage is enable for use, the KVM agent will handle cleanup tasks otherwise SSVM agent will handle them.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
This is to fix the regression added in #2433. In this fix
we're going to fail the build early if --use-timestamp is
provided and working directory is *not* clean.
Remove deprecated tomcat configuration file instead of moving it, since moving it prevented the 4.11 upgrade from overwriting it with the new jetty configurations. Also added systemctl daemon-reload to refresh daemon services so that management server can start up seamlessly after the upgrade.
Fixes#2537
The idea is to create a property in /etc/defaults/cloudstack-management that can be enabled/disabled (uncommented/commented) to control the enabling of Java remote debug in CloudStack's JVM.
- new flag `-T, --use-timestamp` to use `timestamp` when POM version contains SNAPSHOT
- in the final artifacts (jar) name
- in the final package (rpm, deb) name
- in `/etc/cloudstack-release` file of SystemVMs
- in the Management Server > About dialog
- if there's a "branding" string in the POM version (e.g. `x.y.z.a-NAME[-SNAPSHOT]`),
the branding name will be used in the final generated pacakge name such as following:
- `cloudstack-management-x.y.z.a-NAME.NUMBER.el7.centos.x86_64`
- `cloudstack-management_x.y.z.a-NAME-NUMBER~xenial_all.deb`
- branding string can be overriden with newly added `-b, --brand` flag
- handle the new format version for VR version
- fix long opts (they were broken)
- tolerate and show a warning message for unrecognized flags
- usage help reformat
* Deprecate Version class in favor or CloudStackVersion
Remove maven standard module (which only a few were using) and get ride of maven customization for the projects structure.
- moved all directories to src/main/java, src/main/resources, src/main/scripts, src/test/java, src/test/resources
- grep scan to search for src/com and src/org left over
- grep for <project>/scripts to fix pom.xml configuration
- remove custom <build> configuration in pom.xml
Signed-off-by: Marc-Aurèle Brothier <m@brothier.org>
This fixes regression failures seen in Trillian, fixes NPEs that cause Travis related failures.
This also removes the aria2 dependency from rpms that require users to enable/install epel-release.
This finally updates the checksums for 4.11 systemvmtemplates in db upgrade path.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
This feature allows using templates and ISOs avoiding secondary storage as intermediate cache on KVM. The virtual machine deployment process is enhanced to supported bypassed registered templates and ISOs, delegating the work of downloading them to primary storage to the KVM agent instead of the SSVM agent.
Template and ISO registration:
- When hypervisor is KVM, a checkbox is displayed with 'Direct Download' label.
- API methods registerTemplate and registerISO are both extended with this new parameter directdownload.
- On template or ISO registration, no download job is sent to SSVM agent, CloudStack would only persist an entry on template_store_ref indicating that template or ISO has been marked as 'Direct Download' (bypassing Secondary Storage). These entries are persisted as:
template_id = Template or ISO id on vm_template table
store_id NULL
download_state = BYPASSED
state = Ready
(Note: these entries allow users to deploy virtual machine from registered templates or ISOs)
- An URL validation command is sent to a random KVM host to check if template/ISO location can be reached. Metalink are also supported by this feature. In case of a metalink, it is fetched and URL check is performed on each of its URLs.
- Checksum should be provided as indicated on #2246: {ALGORITHM}CHKSUMHASH
- After template or ISO is registered, it would be displayed in the UI
Virtual machine deployment:
When a 'Direct Download' template is selected for deployment, CloudStack would delegate template downloading to destination storage pool via destination host by a new pluggable download manager.
Download manager would handle template downloading depending on URL protocol. In case of HTTP, request headers can be set by the user via vm_template_details. Those details should be persisted as:
Key: HTTP_HEADER
Value: HEADERNAME:HEADERVALUE
In case of HTTPS, a new API method is added uploadTemplateDirectDownloadCertificate to allow user importing a client certificate into all KVM hosts' keystore before deployment.
After template or ISO is downloaded to primary storage, usual entry would be persisted on template_spool_ref indicating the mapping between template/ISO and storage pool.
This adds the `net-tools` dependency on CentOS cloudstack-agent rpms.
This will provide ifconfig, route and other tools that may be used
by CloudStack scripts and utilities.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
- Migrate to embedded Jetty server.
- Improve ServerDaemon implementation.
- Introduce a new server.properties file for easier configuration.
- Have a single /etc/default/cloudstack-management to configure env.
- Reduce shaded jar file, removing unnecessary dependencies.
- Upgrade to Spring 5.x, upgrade several jar dependencies.
- Does not shade and include mysql-connector, used from classpath instead.
- Upgrade and use bountcastle as a separate un-shaded jar dependency.
- Remove tomcat related configuration and files.
- Have both embedded UI assets in uber jar and separate webapp directory.
- Refactor systemd and init scripts, cleanup packaging.
- Made cloudstack-setup-databases faster, using `urandom`.
- Remove unmaintained distro packagings.
- Moves creation and usage of server keystore in CA manager, this
deprecates the need to create/store cloud.jks in conf folder and
the db.cloud.keyStorePassphrase in db.properties file. This also
remove the need of the --keystore-passphrase in the
cloudstack-setup-encryption script.
- GZip contents dynamically in embedded Jetty
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
This introduces a new certificate authority framework that allows
pluggable CA provider implementations to handle certificate operations
around issuance, revocation and propagation. The framework injects
itself to `NioServer` to handle agent connections securely. The
framework adds assumptions in `NioClient` that a keystore if available
with known name `cloud.jks` will be used for SSL negotiations and
handshake.
This includes a default 'root' CA provider plugin which creates its own
self-signed root certificate authority on first run and uses it for
issuance and provisioning of certificate to CloudStack agents such as
the KVM, CPVM and SSVM agents and also for the management server for
peer clustering.
Additional changes and notes:
- Comma separate list of management server IPs can be set to the 'host'
global setting. Newly provisioned agents (KVM/CPVM/SSVM etc) will get
radomized comma separated list to which they will attempt connection
or reconnection in provided order. This removes need of a TCP LB on
port 8250 (default) of the management server(s).
- All fresh deployment will enforce two-way SSL authentication where
connecting agents will be required to present certificates issued
by the 'root' CA plugin.
- Existing environment on upgrade will continue to use one-way SSL
authentication and connecting agents will not be required to present
certificates.
- A script `keystore-setup` is responsible for initial keystore setup
and CSR generation on the agent/hosts.
- A script `keystore-cert-import` is responsible for import provided
certificate payload to the java keystore file.
- Agent security (keystore, certificates etc) are setup initially using
SSH, and later provisioning is handled via an existing agent connection
using command-answers. The supported clients and agents are limited to
CPVM, SSVM, and KVM agents, and clustered management server (peering).
- Certificate revocation does not revoke an existing agent-mgmt server
connection, however rejects a revoked certificate used during SSL
handshake.
- Older `cloudstackmanagement.keystore` is deprecated and will no longer
be used by mgmt server(s) for SSL negotiations and handshake. New
keystores will be named `cloud.jks`, any additional SSL certificates
should not be imported in it for use with tomcat etc. The `cloud.jks`
keystore is stricly used for agent-server communications.
- Management server keystore are validated and renewed on start up only,
the validity of them are same as the CA certificates.
New APIs:
- listCaProviders: lists all available CA provider plugins
- listCaCertificate: lists the CA certificate(s)
- issueCertificate: issues X509 client certificate with/without a CSR
- provisionCertificate: provisions certificate to a host
- revokeCertificate: revokes a client certificate using its serial
Global settings for the CA framework:
- ca.framework.provider.plugin: The configured CA provider plugin
- ca.framework.cert.keysize: The key size for certificate generation
- ca.framework.cert.signature.algorithm: The certificate signature algorithm
- ca.framework.cert.validity.period: Certificate validity in days
- ca.framework.cert.automatic.renewal: Certificate auto-renewal setting
- ca.framework.background.task.delay: CA background task delay/interval
- ca.framework.cert.expiry.alert.period: Days to check and alert expiring certificates
Global settings for the default 'root' CA provider:
- ca.plugin.root.private.key: (hidden/encrypted) CA private key
- ca.plugin.root.public.key: (hidden/encrypted) CA public key
- ca.plugin.root.ca.certificate: (hidden/encrypted) CA certificate
- ca.plugin.root.issuer.dn: The CA issue distinguished name
- ca.plugin.root.auth.strictness: Are clients required to present certificates
- ca.plugin.root.allow.expired.cert: Are clients with expired certificates allowed
UI changes:
- Button to download/save the CA certificates.
Misc changes:
- Upgrades bountycastle version and uses newer classes
- Refactors SAMLUtil to use new CertUtils
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
$1 is "2" during package upgrade in %post section, this fixes the
handling of $1 as per https://fedoraproject.org/wiki/Packaging:Scriptlets
This improves handling of $1 during %post upgrade step. Some of the
command/code are idempotent such as enabling and starting a service
and can be run without any $1 checks.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
* 4.9:
CLOUDSTACK-9857: With this change if agent dies the systemd will catch it properly and show process as exited
CLOUDSTACK-9805: Display VR list in network details
CLOUDSTACK-9356: FIX Cannot add users in VPC VPN
This fixes the agreed upon url on download.cloudstack.org in various
sql files and misc scripts.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
- commented some occurences of cloud.com as being harmless
* examples
* identifiers (internal)
- changed the URL for vhd-util download
- changed comments from 'cloud.com' to 'Apache CloudStack'
We do not need to build a tarball before building the DEB packages
Saves a few minutes on building DEB packages
Signed-off-by: Wido den Hollander <wido@widodh.nl>
MySQL 5.7 has a more strict SQL mode by default with which CloudStack
is not compatible.
By setting the SQL Mode to a more relaxed mode on run-time we can
run without changing any SQL server settings.
Admins could also apply this to the [mysqld] section of their my.cnf:
sql_mode = 'STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION'
Signed-off-by: Wido den Hollander <wido@widodh.nl>
This commit implements basic Security Grouping for KVM in
Basic Networking.
It does not implement full Security Grouping yet, but it does:
- Prevent IP-Address source spoofing
- Allow DHCPv6 clients, but disallow DHCPv6 servers
- Disallow Instances to send out Router Advertisements
The Security Grouping allows ICMPv6 packets as described by RFC4890
as they are essential for IPv6 connectivity.
Following RFC4890 it allows:
- Router Solicitations
- Router Advertisements (incoming only)
- Neighbor Advertisements
- Neighbor Solicitations
- Packet Too Big
- Time Exceeded
- Destination Unreachable
- Parameter Problem
- Echo Request
ICMPv6 is a essential part of IPv6, without it connectivity will break or be very
unreliable.
For now it allows any UDP and TCP packet to be send in to the Instance which
effectively opens up the firewall completely.
Future commits will implement Security Grouping further which allows controlling UDP and TCP
ports for IPv6 like can be done with IPv4.
Regardless of the egress filtering (which can't be done yet) it will always allow outbound DNS
to port 53 over UDP or TCP.
Signed-off-by: Wido den Hollander <wido@widodh.nl>
- Switches Travis to use jdk1.8
- Changes java-version to 1.8
- Change jdk/maven version to 1.8
- Switch to F5/java8 compatible library release
- Switch packaging to use jdk 1.8, and jre 1.8 in init/systemd scripts
- Switch systemvm to openjdk-8-jre
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
While forward merging PR #1728, and resolving merge issues a semi-colon was
not added causing cloudstack-agent to fail to start. This fixes the
issue of running agent on centos7.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Greg Goodrich
davidjumani
sureshanaparti
Rohit Yadav
dahn
Pearl Dsilva
Abhishek Kumar
Wei Zhou
slavkap
Andrija Panic
harikrishna-patnala
NuxRo
Nicolas Vazquez
Anurag Awasthi
Kai Takahashi
Sven Vogel
瓜
Wido den Hollander
Sven Vogel
Rohit Yadav
GabrielBrascher
Rafael Weingärtner
Gabriel Beims Bräscher
Bruno P. Kinoshita
Khosrow Moossavi
ernjvr
dahn
Marc-Aurèle Brothier
lmrv
Rohit Yadav
Rajani Karuturi
Rajani Karuturi
Daan Hoogland
Wei Zhou
Abhinandan Prateek
Rene Moser