This PR allows securing the console access through CloudStack to the virtual machines running on KVM. The secure access is achieved through the generated certificates for the CA Framework in CloudStack, that provides mutual TLS connections between agents. These certificates are used to also secure the connection between the console proxies and the VNC ports for VM console access.
This feature is only supported on the KVM hypervisor
Design Document: https://cwiki.apache.org/confluence/display/CLOUDSTACK/Secure+KVM+VNC+connection+using+the+CA+framework
* 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>
This extends securing of KVM hosts to securing of libvirt on KVM
host as well for TLS enabled live VM migration. To simplify implementation
securing of host implies that both host and libvirtd processes are
secured with management server's CA plugin issued certificates.
Based on whether keystore and certificates files are available at
/etc/cloudstack/agent, the KVM agent determines whether to use TLS or
TCP based uris for live VM migration. It is also enforced that a secured
host will allow live VM migration to/from other secured host, and an
unsecured hosts will allow live VM migration to/from other unsecured
host only.
Post upgrade the KVM agent on startup will expose its security state
(secured detail is sent as true or false) to the managements server that
gets saved in host_details for the host. This host detail can be accesed
via the listHosts response, and in the UI unsecured KVM hosts will show
up with the host state of ‘unsecured’. Further, a button has been added
that allows admins to provision/renew certificates to KVM hosts and can
be used to secure any unsecured KVM host.
The `cloudstack-setup-agent` was modified to accept a new flag `-s`
which will reconfigure libvirtd with following settings:
listen_tcp=0
listen_tls=1
tcp_port="16509"
tls_port="16514"
auth_tcp="none"
auth_tls="none"
key_file = "/etc/pki/libvirt/private/serverkey.pem"
cert_file = "/etc/pki/libvirt/servercert.pem"
ca_file = "/etc/pki/CA/cacert.pem"
For a connected KVM host agent, when the certificate are
renewed/provisioned a background task is scheduled that waits until all
of the agent tasks finish after which libvirt process is restarted and
finally the agent is restarted via AgentShell.
There are no API or DB changes.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
New network.bridge.type was introduced, but for
buckward compatibility, the key should be optional.
Signed-off-by: Hiroaki KAWAI <kawai@stratosphere.co.jp>
Ovs brcompat will be obsolete, so if network.bridge.type was
set to openvswitch, we'll use ovs command explicitly.
Signed-off-by: Hiroaki KAWAI <kawai@stratosphere.co.jp>
The sequence:
1. add host in UI
2. scp setup_agent.sh to agent host, and execute it. This script receives hostip,zoneid, podid and guid, then runs "cloud-setup-agent" and "cloud-setup-console-proxy". Here, we assume that network/hostname and cloud-agent are already configed and installed.
3. Write a dummy kvm resource into the database, then wait for agent connects to server, by polling the database for every 1 minutes. If it finds the agent is in UP state in database, then return, or wait for at least 10 minutes.
