The virtual router is one of the most frequently used service providers in CloudStack. The end user has no direct access to the virtual router. Users can ping the virtual router and take actions that affect it such as setting up port forwardingbut users do not have SSH access into the virtual router. There is no mechanism for the administrator to log in to the virtual router. Virtual routers can be restarted by administrators, but this will interrupt public network access and other services for end users.
A basic test in debugging networking issues is to attempt to ping the virtual router from a guest VM. Some of the characteristics of the virtual router are determined by its associated system service offering. When CloudStack creates a virtual router, it uses default settings which are defined in a default system service offering. All the virtual routers in a single guest network use the same system service offering. You can upgrade the capabilities of the template router by creating and applying a custom system service offering.
To work around this issue, stop the virtual router and cloudstack it from the CloudStack UI. Various services running on the CloudStack virtual routers can be monitored by using a Service Monitoring tool. The tool ensures that services are successfully running until CloudStack deliberately disables them. If a service goes down, the tool automatically attempts to restart service, and if that does not help bringing up the service, an alert as well as an event is generated indicating the failure.
A new global parameter, network. The default value template false, implies, monitoring is disabled. When you enable, ensure that the Management Server and the router are restarted. Monitoring tool can help to start a VR service, which is crashed due to an unexpected reason. For example:. Only those services with daemons are monitored. As of CloudStack 4.
In addition to monitoring cloudstack as of 4. The health checks are split download two categories - basic and advanced. The two categories have their own admin definable intervals. The split is made this way as the advanced health checks are considerably more expensive. The health checks will be available on-demand via API as well as scheduled.
Management server periodically pushes data download each running virtual router including schedule intervals, tests to skip, some configuration for LB, VMs, Gateways, etc.The System VM Template — Apache CloudStack documentation. CloudStack uses several types of system virtual machines to perform tasks in the cloud. In general CloudStack manages these system VMs and creates, starts, and stops them as needed based on scale and immediate judionlinebola.coted Reading Time: 10 mins. The Default Template¶ CloudStack includes a CentOS template. This template is downloaded by the Secondary Storage VM after the primary and secondary storage are configured. You can use this template in your production deployment or you can delete it and use custom templates. The root password for the default template is “password”. System Template Setup¶ CloudStack uses a number of system VMs to provide functionality for accessing the console of virtual machines, providing various networking services, and managing various aspects of storage. We need to download the systemVM template and deploy that to the secondary judionlinebola.coted Reading Time: 11 mins.
Basic and advanced tests as scheduled as per the intervals in the data sent by Management server. Each run of checks also keeps track of the start time, end time, and duration of test cloudstack for better understanding. Performing fresh checks is expensive and will cause management server doing the following:.
Refresh the data from Management server records download the router for verification repeat of step 1. The patch also supports custom health checks cloudstaack custom systemVM templates. This is achieved as follows:. Download placed script must do the following:. These indicate the health checks described in executive summary.
The management server will connect periodically to each virtual router to confirm that the checks are running downloa scheduled, and retrieve the results of those checks. Any failing checks download in router. On each check tmeplate server will persist only the last executed check results in its database. If false, all scheduled checks and API calls for on demand checks are disabled.
Default is true. If set to 0, no tests are scheduled. Default is 3 downlload as per the pre 4. Default value is 10 minutes. This value should be sufficiently high like 2x from the router. Default is 10 mins. If empty the recreate is not attempted for any download check failure. These are not yemplate and can be modified for covering other scenarios not covered. Details of individual checks:. Services check ssh, dnsmasq, lcoudstack, haproxy — this check is still done as per existing monitorServices.
Connectivity to the gateways from router — this is done by analysing the success or failure of ping to the gateway IPs given by management server. We do not check for stickiness properties yet. Port forwarding match against MS in iptables. Upgrading VR is made flexible. The CloudStack administrators will be able to control the sequence of the VR upgrades. The sequencing is based on Infrastructure hierarchy, such as by Cluster, Pod, or Zone, and Administrative Account hierarchy, such as by Tenant or Domain.
As an administrator, you can also determine when a particular customer service, such as VR, is upgraded within a specified upgrade interval. Upgrade operation is enhanced to increase the dosnload speed by allowing as many upgrade operations cloudstacm parallel as possible. During the entire duration of the upgrade, users cannot launch new services or make changes download an existing service.
Additionally, using multiple versions of VRs in a single instance is supported. In template Details tab of a VR, you can view the version and whether it requires upgrade. Xloudstack parameter is set to true by default, which implies minimum required version is checked before performing any template. No operation is performed if the VR is not at the required version.
Services of the older version VR clouddtack to xloudstack available, but no further operations can be performed on the VR until it is upgraded to the latest version. This will be a transient state until the VR is upgraded. This will ensure that the availability of VR services and VR state template not impacted due to the Management Server cloudstack. The following service will be available even if cloudstack VR is not upgraded.
However, no changes for any of the services can be sent to the VR, until it is upgraded:. Even when the VRs are still on older versions, existing services will continue to be available to the VMs. The Management Server cannot perform any operations on the VRs until they are upgraded. Click the Upgrade button to upgrade all the VRs. Submissions to secondary storage go through the Secondary Storage VM.
The secondary storage VM provides a background task that takes care of a variety of secondary storage activities: downloading a new template to a Zone, copying templates between Zones, and snapshot backups. For troubleshooting of network issues in CloudStack hosted networks, CloudStack allows the administrator to execute network-utility commands ping, traceroute or arping remotely on system VMs. The Extra Args cloudstack is for specifying command line optional parameters as one would when executing any of the tools from the terminal or command line.
The supported versions template Debian 10 based since system VMs are built using the same Debian 10 based templates. Any metacharacter supplied will immediately result dowjload an immediate termination of the command and report back to the operator that an illegal character was passed. The files are compressed and downlload URL is returned where the diagnostics data can be retrieved. Click on the Get Diagnostics button.
Wait for the URL to generate and click it to download the zipped up diagnostics files. These global settings are all dynamic and do not require a restart of the management server in order for changes to be effective. The names wrapped in square brackets are for data types that need to first execute a script in the system vm and grab output for retrieval, e.
This also allows an admin to pack their own custom scripts cloudwtack the system VMs that can be executed and their output will be redirected to a text file that will be retrieved. The templates that are downloaded depend on the hypervisor type that is available in your cloud. Each template is approximately 2. The default template includes the standard iptables rules, which will block most access to the template excluding ssh. Private templates are only tfmplate to the user who created them.
By default, an template template is private. This depends on whether the Zone, in turn, was defined as private or public. A private Zone is assigned to a single domain, templats a public Zone is accessible to any domain. If a public template is created in a private Zone, it is available only to users in the domain assigned to that Zone.
If tekplate public template is created in a public Zone, it is available to all users in all domains. Once you have at least one VM set up in the way you want, you can use it as cliudstack prototype for other VMs. Name and Display Text. These will cludstack shown tenplate the UI, so choose something descriptive. OS Type. Except for VMware.The System VM Template — Apache CloudStack documentation
This helps CloudStack and the hypervisor perform certain operations and make cloudstack that improve the performance of the guest. Select one of the following. This choice is available only for XenServere:. Generally you should not choose an older version of the OS than the version in the image. For example, choosing CentOS 5. In those cases you should choose Other. Since version 4. The OS Type is obtained from the template after it is registered. Choose Yes to make this template accessible to all users of this CloudStack installation.
The template will appear in the Community Templates list. Password Enabled. Choose Yes if your template has the CloudStack password change script installed. The new template will be visible in the Templates section when the template download process has been completed. The template is then available when creating a new VM. If download template contains different deployment options or configurations as in the case of virtual appliances, then CloudStack display the information required by the template, allowing users or administrators to configure their instances.
If it does, the cloudstack of VMs from the template will fail. Templates are uploaded based on a URL. HTTP is the supported template protocol. Templates are frequently large files. You can optionally gzip them to decrease upload times. Name and Description. Choose the zone where you want the template to be available, template All Zones to make it available throughout CloudStack. Select if this ISO is bootable. If not passed explicitly, its assumed to be true. Select one of the following:.
You should not choose an older version of the OS than the version in the image. Hypervisor : The supported hypervisors are listed. Select the desired one. Choose Yes if the template is available for extraction. If this option is selected, end users can download a full image of a template. Choose Yes if you would like this template to be more prominent for users to select. The template will appear in the Featured Templates list.The Default Template¶ CloudStack includes a CentOS template. This template is downloaded by the Secondary Storage VM after the primary and secondary storage are configured. You can use this template in your production deployment or you can delete it and use custom templates. The root password for the default template is “password”. The Default Template¶ CloudStack includes a CentOS template. This template is downloaded by the Secondary Storage VM after the primary and secondary storage are configured. You can use this template in your production deployment or you can delete it and use custom templates. The root password for the default template is “password”.Estimated Reading Time: 8 mins. 14 rows · Sep 28, · Download template "1. Add public/private template 2. select the .
Only an administrator can make a template Featured. VMware only: If the selected template contains OVF properties, different deployment options or configurations, multiple NICs cloudstack end-user license agreements, then the wizard will display these properties. Instead of registering a template and storing it on secondary storage, the user can opt to skip downloading the template to templte storage for KVM at download registration.
At deployment time, the template is downloaded directly to primary storage from the registered source, instead of being copied from secondary storage. The template is obtained from the template URL. From CloudStack 4. After a certificate is revoked from downpoad host within a zone, it can be re-uploaded to the host:. As new hosts may be added to a zone which do not include a certificate which was previously uploaded to pre-existing hosts.
CloudStack provides a way to synchronize certificates across all the connected hosts in each zone.
Quick Installation Guide — Apache CloudStack documentation
This task will:. With 4. Three new global cloudstacj have been added for this:. The OS Type is obtained from the template after it is uploaded. In this case, the user will be presented with an input field to enter the account name, as on the images below:. The images displayed below refer to template permissions, but the same applies for ISO permissions. This is shown in the images below. Project-owned templates download not supported to be shared outside of cloucstack Project, and if attempted to do so, a proper temlpate message is shown.
End users and Administrators may export templates from the CloudStack. Navigate to the template in the UI and choose the Download function from the Actions menu. Linux templates should be prepared using this documentation in order to prepare your linux VMs for template deployment. This guide currently covers legacy setups which do not take advantage of UserData and cloud-init and assumes cloudstack is installed during installation. It is good practice to name your Template something generic during installation, this will ensure components such as LVM do not appear unique to a templae.
If preferred, custom users such as ones created during the Ubuntu installation should be removed. First ensure the root user account is enabled by giving it a password and then login as root to continue. See Adding Password Management to Your Templates for instructions cloudstcak setup the password management script, this will allow CloudStack to change your root password from the web interface.
CentOS configures the hostname by default on boot. Unfortunately Ubuntu does not have this functionality, for Ubuntu installations use the following steps. Once this script, or a user has changed the hostname from localhost, it will no longer adjust system files regardless of its new hostname. The script also recreates openssh-server keys, which should have been deleted before templating shown below. The following steps should be run when you are ready to template your Template Master.
If the Template Master is rebooted during these steps you will have to run all the steps again. At the end of this process the Template Master should be shutdown template the cloudstack created in order to create and deploy the final template. This step removes information unique to your Template Master such as network MAC addresses, lease files and CD block devices, the files are automatically generated on next boot.
This step is to ensure all your Templated VMs do not have the same SSH keys, which would decrease the security of the machines dramatically. Windows templates must be prepared with Sysprep before they can be provisioned on multiple machines. Sysprep allows you to create a generic Windows template and avoid any download SID conflicts.
The PV drivers are necessary for essential management functions such as mounting additional volumes and ISO images, live migration, and graceful shutdown. The preparation steps are complete. Now you can actually create the template as described in Creating the Windows Template. The steps outlined here are derived from the excellent guide by Charity Shelbourne, originally published at Windows Server Sysprep Mini-Setup.
Windows AIK should not be part of the template you create. It is only used to create the sysprep answer download. Copy the install. This is a very large file and may take a long time to copy. In the Windows Image pane, right click the Select a Windows image or catalog file option to cloudstack the install. You may be template with a warning that the catalog file cannot be opened.
Click Yes to create a new catalog file. Generate the answer file from the Windows System Image Manager using the following steps:. The first page you need to automate is the Language and Country or Region Selection page.
Template and ISO - Apache Cloudstack - Apache Software Foundation
Should you have a question about any of these settings, you can right-click on the specific setting and select Help. This will open the appropriate CHM help file with more information, including examples on the setting you are attempting to template. To do this, expand the Microsoft-Windows-Shell-Setup component. Templatd sure the license key is properly set. You need to automate is the Change Administrator Password page.
Expand the Microsoft-Windows-Shell-Setup component if it is not still expandedexpand UserAccounts, right-click cloudsfack AdministratorPassword, and add the setting to the Pass 7 oobeSystem configuration pass of clokdstack answer file. Under Settings, specify a password next to Value. You may read the AIK documentation and set many download options that suit your deployment. The steps above are the minimum needed to make Windows unattended setup work.
Save the answer file as unattend. You can ignore the warning messages that appear in the validation window. Copy the unattend. Once you place the cloudstack. Earlier versions of Windows have a different sysprep tool. Follow these steps for Windows Server R2. Assume further that you are working on a CentOS host. When copying and pasting a command, be sure the command has pasted as a single line before executing.
Some document viewers may introduce unwanted line breaks in copied text. Install the kernel-xen package into the image. This downloads the PV kernel and ramdisk to the image. Above, the only kernel that satisfies this condition is 2. Based on templage findings, create an entry in the cloudstafk.