Overview of the Hosts tab in the ADCM UI

Adelya Zvyagintseva

After you install and configure a hostprovider, you can create and manage hosts on the Hosts tab in the ADCM web interface via the host actions described below.

List of hosts

On the Hosts tab, you can see the list of created hosts in tabular form which contains information described below.

The Hosts tab
The Hosts tab
Fields of the Hosts tab
Field Description

Name

Name of the host specified during the host creation.

The dot located next to the host name determines the host status. The green dot indicates that statuschecker is installed and the host regularly sends heartbeat. The yellow one indicates that statuschecker is not installed and the host does not send heartbeat to ADCM

State

Status of the host. Possible values:

  • created — the host is created;

  • running — the host is created and configured.

Hostprovider

Name of the hostprovider used to create the host

Cluster

Name of the cluster the host belongs to

Concerns

One of the following icons:

  • concern red dark concern red light — indicates the presence of launched blocking actions or concerns in the current host configuration, e.g. mandatory fields being not specified.

  • concern yellow dark concern yellow light — indicates the presence of launched action with raising a non-blocking concern.

A pop-up window with the error description appears when hovering over the concern red dark concern red light or concern yellow dark concern yellow light icon

Actions

Icons for managing the host:

  • actions default dark actions default light — opens the drop-down list with actions to manage the host.

  • maintenance default — turns on the maintenance mode on the host if supported by the product in use. If maintenance mode is not supported by the product, the icon image is changed to mainenace disabled dark mainenace disabled light. After the action is executed, the icon image is changed to maintenance active dark maintenance active light which performs the opposite action.

  • link default — adds the host to a cluster. After the action is executed, the icon image is changed to unlink default which performs the opposite action.

  • delete — deletes the information about the host from ADCM. The host removal is possible only after removing the host from a cluster using the Unlink action.
NOTE
Add/remove and delete options, and the actions default dark actions default light icon are also available on the host page.

To sort the hosts alphabetically, click the arrow down dark arrow down light icon in the Name column.

To search for a host in the list, enter the desired host name in the Search hostname field.

To filter hosts:

  • by hostprovider name — select the required value from the drop-down list in the field next to Hostprovider;

  • by cluster name — select the required value from the drop-down list in the field next to Cluster.

To reset your filters, click the reset dark reset light icon.

Host actions

ADCM allows you to create and configure hosts.

To create and configure a single host, follow these steps:

  1. Open the Hosts tab.

  2. On the page that opens, click Create host.

  3. For further action, refer to the following links, depending on the hostprovider type:

NOTE
To add several hosts with the SSH or Yandex Cloud hostproviders simultaneously, run the hostprovider action Create hosts.

After you create and configure a new host, you can manage it on the Hosts page. Click the actions default dark actions default light icon in the Actions column to select one of the available host actions.

For more information on actions for hosts based on different hostprovider types, refer to the following links:

NOTE
For hosts based on the ADB Cloud Bundle and ADQM Cloud Bundle hostproviders, actions are not yet provided.

When you choose an action, ADCM displays a standard dialog box.

Dialog box to run the Check connection action
Dialog box to run the Check connection action

In this dialog box, you can run the action with raising a non-blocking concern and select the Verbose checkbox to see additional execution details on the Jobs page. For some actions, such as Create user, you should first fill in additional options on a separate tab.

Host details

To get detailed information about the host, click on the host name in the Name column of the table located on the Hosts tab.

The host page
The host page

At the top of the host page, the following is displayed:

  • host name with the host status;

  • clickable hostprovider name;

  • number of components successfully installed on the host;

  • buttons Actions and Link/Unlink (depending on the state of the link between the host and its cluster).

Also, this page includes the following tabs:

  • Host-Components — allows you to get more information about the current host, such as host components and their statuses.

  • Primary configuration — allows you to configure the general host settings. For more information on configuration parameters, see the links above.

The Primary configuration tab contains the following switches:

  • Show advanced — makes visible some of the configuration parameters highlighted blue.

  • Expand content — expands and collapses the configuration parameters tree.

After you fill in configuration parameters and save the configuration, a new tab with the configuration name and its creation date appears. If you have a previously saved configuration, you can view it and change configuration parameters by clicking on the tab with an appropriate name.

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